[ { "path": ".gitignore", "content": "thd\nthd.1\nth-cmd\nth-cmd.1\n*.o\n/*.d\nevtable_*.inc\nlinux_input_defs_gen.inc\nversion.h\n" }, { "path": "AUTHORS", "content": "Stefan Tomanek \n" }, { "path": "COPYING", "content": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free Software Foundation, Inc. \n Everyone is permitted to copy and distribute verbatim copies\n of this license document, but changing it is not allowed.\n\n Preamble\n\n The GNU General Public License is a free, copyleft license for\nsoftware and other kinds of works.\n\n The licenses for most software and other practical works are designed\nto take away your freedom to share and change the works. By contrast,\nthe GNU General Public License is intended to guarantee your freedom to\nshare and change all versions of a program--to make sure it remains free\nsoftware for all its users. 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Any attempt otherwise to propagate or\nmodify it is void, and will automatically terminate your rights under\nthis License (including any patent licenses granted under the third\nparagraph of section 11).\n\n However, if you cease all violation of this License, then your\nlicense from a particular copyright holder is reinstated (a)\nprovisionally, unless and until the copyright holder explicitly and\nfinally terminates your license, and (b) permanently, if the copyright\nholder fails to notify you of the violation by some reasonable means\nprior to 60 days after the cessation.\n\n Moreover, your license from a particular copyright holder is\nreinstated permanently if the copyright holder notifies you of the\nviolation by some reasonable means, this is the first time you have\nreceived notice of violation of this License (for any work) from that\ncopyright holder, and you cure the violation prior to 30 days after\nyour receipt of the notice.\n\n Termination of your rights under this section does not terminate the\nlicenses of parties who have received copies or rights from you under\nthis License. If your rights have been terminated and not permanently\nreinstated, you do not qualify to receive new licenses for the same\nmaterial under section 10.\n\n 9. Acceptance Not Required for Having Copies.\n\n You are not required to accept this License in order to receive or\nrun a copy of the Program. Ancillary propagation of a covered work\noccurring solely as a consequence of using peer-to-peer transmission\nto receive a copy likewise does not require acceptance. However,\nnothing other than this License grants you permission to propagate or\nmodify any covered work. These actions infringe copyright if you do\nnot accept this License. Therefore, by modifying or propagating a\ncovered work, you indicate your acceptance of this License to do so.\n\n 10. Automatic Licensing of Downstream Recipients.\n\n Each time you convey a covered work, the recipient automatically\nreceives a license from the original licensors, to run, modify and\npropagate that work, subject to this License. You are not responsible\nfor enforcing compliance by third parties with this License.\n\n An \"entity transaction\" is a transaction transferring control of an\norganization, or substantially all assets of one, or subdividing an\norganization, or merging organizations. If propagation of a covered\nwork results from an entity transaction, each party to that\ntransaction who receives a copy of the work also receives whatever\nlicenses to the work the party's predecessor in interest had or could\ngive under the previous paragraph, plus a right to possession of the\nCorresponding Source of the work from the predecessor in interest, if\nthe predecessor has it or can get it with reasonable efforts.\n\n You may not impose any further restrictions on the exercise of the\nrights granted or affirmed under this License. For example, you may\nnot impose a license fee, royalty, or other charge for exercise of\nrights granted under this License, and you may not initiate litigation\n(including a cross-claim or counterclaim in a lawsuit) alleging that\nany patent claim is infringed by making, using, selling, offering for\nsale, or importing the Program or any portion of it.\n\n 11. Patents.\n\n A \"contributor\" is a copyright holder who authorizes use under this\nLicense of the Program or a work on which the Program is based. The\nwork thus licensed is called the contributor's \"contributor version\".\n\n A contributor's \"essential patent claims\" are all patent claims\nowned or controlled by the contributor, whether already acquired or\nhereafter acquired, that would be infringed by some manner, permitted\nby this License, of making, using, or selling its contributor version,\nbut do not include claims that would be infringed only as a\nconsequence of further modification of the contributor version. For\npurposes of this definition, \"control\" includes the right to grant\npatent sublicenses in a manner consistent with the requirements of\nthis License.\n\n Each contributor grants you a non-exclusive, worldwide, royalty-free\npatent license under the contributor's essential patent claims, to\nmake, use, sell, offer for sale, import and otherwise run, modify and\npropagate the contents of its contributor version.\n\n In the following three paragraphs, a \"patent license\" is any express\nagreement or commitment, however denominated, not to enforce a patent\n(such as an express permission to practice a patent or covenant not to\nsue for patent infringement). To \"grant\" such a patent license to a\nparty means to make such an agreement or commitment not to enforce a\npatent against the party.\n\n If you convey a covered work, knowingly relying on a patent license,\nand the Corresponding Source of the work is not available for anyone\nto copy, free of charge and under the terms of this License, through a\npublicly available network server or other readily accessible means,\nthen you must either (1) cause the Corresponding Source to be so\navailable, or (2) arrange to deprive yourself of the benefit of the\npatent license for this particular work, or (3) arrange, in a manner\nconsistent with the requirements of this License, to extend the patent\nlicense to downstream recipients. \"Knowingly relying\" means you have\nactual knowledge that, but for the patent license, your conveying the\ncovered work in a country, or your recipient's use of the covered work\nin a country, would infringe one or more identifiable patents in that\ncountry that you have reason to believe are valid.\n\n If, pursuant to or in connection with a single transaction or\narrangement, you convey, or propagate by procuring conveyance of, a\ncovered work, and grant a patent license to some of the parties\nreceiving the covered work authorizing them to use, propagate, modify\nor convey a specific copy of the covered work, then the patent license\nyou grant is automatically extended to all recipients of the covered\nwork and works based on it.\n\n A patent license is \"discriminatory\" if it does not include within\nthe scope of its coverage, prohibits the exercise of, or is\nconditioned on the non-exercise of one or more of the rights that are\nspecifically granted under this License. You may not convey a covered\nwork if you are a party to an arrangement with a third party that is\nin the business of distributing software, under which you make payment\nto the third party based on the extent of your activity of conveying\nthe work, and under which the third party grants, to any of the\nparties who would receive the covered work from you, a discriminatory\npatent license (a) in connection with copies of the covered work\nconveyed by you (or copies made from those copies), or (b) primarily\nfor and in connection with specific products or compilations that\ncontain the covered work, unless you entered into that arrangement,\nor that patent license was granted, prior to 28 March 2007.\n\n Nothing in this License shall be construed as excluding or limiting\nany implied license or other defenses to infringement that may\notherwise be available to you under applicable patent law.\n\n 12. No Surrender of Others' Freedom.\n\n If conditions are imposed on you (whether by court order, agreement or\notherwise) that contradict the conditions of this License, they do not\nexcuse you from the conditions of this License. If you cannot convey a\ncovered work so as to satisfy simultaneously your obligations under this\nLicense and any other pertinent obligations, then as a consequence you may\nnot convey it at all. For example, if you agree to terms that obligate you\nto collect a royalty for further conveying from those to whom you convey\nthe Program, the only way you could satisfy both those terms and this\nLicense would be to refrain entirely from conveying the Program.\n\n 13. Use with the GNU Affero General Public License.\n\n Notwithstanding any other provision of this License, you have\npermission to link or combine any covered work with a work licensed\nunder version 3 of the GNU Affero General Public License into a single\ncombined work, and to convey the resulting work. The terms of this\nLicense will continue to apply to the part which is the covered work,\nbut the special requirements of the GNU Affero General Public License,\nsection 13, concerning interaction through a network will apply to the\ncombination as such.\n\n 14. Revised Versions of this License.\n\n The Free Software Foundation may publish revised and/or new versions of\nthe GNU General Public License from time to time. Such new versions will\nbe similar in spirit to the present version, but may differ in detail to\naddress new problems or concerns.\n\n Each version is given a distinguishing version number. If the\nProgram specifies that a certain numbered version of the GNU General\nPublic License \"or any later version\" applies to it, you have the\noption of following the terms and conditions either of that numbered\nversion or of any later version published by the Free Software\nFoundation. If the Program does not specify a version number of the\nGNU General Public License, you may choose any version ever published\nby the Free Software Foundation.\n\n If the Program specifies that a proxy can decide which future\nversions of the GNU General Public License can be used, that proxy's\npublic statement of acceptance of a version permanently authorizes you\nto choose that version for the Program.\n\n Later license versions may give you additional or different\npermissions. However, no additional obligations are imposed on any\nauthor or copyright holder as a result of your choosing to follow a\nlater version.\n\n 15. Disclaimer of Warranty.\n\n THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY\nAPPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT\nHOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM \"AS IS\" WITHOUT WARRANTY\nOF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,\nTHE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\nPURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM\nIS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF\nALL NECESSARY SERVICING, REPAIR OR CORRECTION.\n\n 16. Limitation of Liability.\n\n IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\nWILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS\nTHE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY\nGENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE\nUSE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF\nDATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD\nPARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),\nEVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF\nSUCH DAMAGES.\n\n 17. Interpretation of Sections 15 and 16.\n\n If the disclaimer of warranty and limitation of liability provided\nabove cannot be given local legal effect according to their terms,\nreviewing courts shall apply local law that most closely approximates\nan absolute waiver of all civil liability in connection with the\nProgram, unless a warranty or assumption of liability accompanies a\ncopy of the Program in return for a fee.\n\n END OF TERMS AND CONDITIONS\n\n How to Apply These Terms to Your New Programs\n\n If you develop a new program, and you want it to be of the greatest\npossible use to the public, the best way to achieve this is to make it\nfree software which everyone can redistribute and change under these terms.\n\n To do so, attach the following notices to the program. It is safest\nto attach them to the start of each source file to most effectively\nstate the exclusion of warranty; and each file should have at least\nthe \"copyright\" line and a pointer to where the full notice is found.\n\n \n Copyright (C) \n\n This program is free software: you can redistribute it and/or modify\n it under the terms of the GNU General Public License as published by\n the Free Software Foundation, either version 3 of the License, or\n (at your option) any later version.\n\n This program is distributed in the hope that it will be useful,\n but WITHOUT ANY WARRANTY; without even the implied warranty of\n MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n GNU General Public License for more details.\n\n You should have received a copy of the GNU General Public License\n along with this program. If not, see .\n\nAlso add information on how to contact you by electronic and paper mail.\n\n If the program does terminal interaction, make it output a short\nnotice like this when it starts in an interactive mode:\n\n Copyright (C) \n This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.\n This is free software, and you are welcome to redistribute it\n under certain conditions; type `show c' for details.\n\nThe hypothetical commands `show w' and `show c' should show the appropriate\nparts of the General Public License. Of course, your program's commands\nmight be different; for a GUI interface, you would use an \"about box\".\n\n You should also get your employer (if you work as a programmer) or school,\nif any, to sign a \"copyright disclaimer\" for the program, if necessary.\nFor more information on this, and how to apply and follow the GNU GPL, see\n.\n\n The GNU General Public License does not permit incorporating your program\ninto proprietary programs. If your program is a subroutine library, you\nmay consider it more useful to permit linking proprietary applications with\nthe library. If this is what you want to do, use the GNU Lesser General\nPublic License instead of this License. But first, please read\n.\n" }, { "path": "Makefile", "content": "PREFIX:=/usr/\nDESTDIR:=/\nBINDIR:=$(DESTDIR)/$(PREFIX)/sbin/\nMANDIR:=$(DESTDIR)/$(PREFIX)/share/man/man1/\n\nPKGCONFIG = pkg-config\nHAVE_PKGCONFIG = $(shell $(PKGCONFIG) --version 2>/dev/null || echo no)\nifneq ($(HAVE_PKGCONFIG),no)\nHAVE_SYSTEMD = $(shell $(PKGCONFIG) --exists libsystemd && echo 1 || echo 0)\nifeq ($(HAVE_SYSTEMD),1)\nCPPFLAGS += -DHAVE_SYSTEMD=1\nCFLAGS += $(shell $(PKGCONFIG) --cflags libsystemd)\nLDLIBS += $(shell $(PKGCONFIG) --libs libsystemd)\nendif\nendif\n\nVERSION:=$(shell cat version.inc)\n\nTHD_COMPS := thd keystate trigger eventnames devices cmdsocket obey ignore uinput triggerparser\nTHCMD_COMPS := th-cmd cmdsocket\n\nMAKEDEPEND = $(CC) -M -MG $(CPPFLAGS) -o $*.d $<\n\nall: thd th-cmd man\n\nman: thd.1 th-cmd.1\n\nthd: $(THD_COMPS:%=%.o)\n\nth-cmd: $(THCMD_COMPS:%=%.o)\n\n%.1: %.pod\n\tpod2man \\\n\t\t--center=\"Triggerhappy daemon\" \\\n\t\t--section=1 \\\n\t\t--release=\"$(VERSION)\" \\\n\t\t$< > $@\n\nlinux_input_defs_gen.inc:\n\techo \"#include \" | $(CC) $(CPPFLAGS) -dM -E - > $@\n\nevtable_%.inc: linux_input_defs_gen.inc\n\tawk '/^#define $*_/ && $$2 !~ /_(MIN_INTERESTING|MAX|CNT|VERSION)$$/ {print \"EV_MAP(\"$$2\"),\"}' $< > $@\n\nversion.h: version.inc\n\tsed -r 's!(.*)!#define TH_VERSION \"\\1\"!' $< > $@\n\nclean:\n\trm -f *.d\n\trm -f *.o\n\trm -f linux_input_defs_gen.inc\n\trm -f evtable_*.inc\n\trm -f version.h\n\trm -f thd th-cmd\n\trm -f thd.1 th-cmd.1\n\ninstall: all\n\tinstall -D thd $(BINDIR)/thd\n\tinstall -D th-cmd $(BINDIR)/th-cmd\n\tinstall -D thd.1 $(MANDIR)/thd.1\n\tinstall -D th-cmd.1 $(MANDIR)/th-cmd.1\n\n%.d : %.c\n\t$(MAKEDEPEND)\n\n-include $(THD_COMPS:%=%.d) $(THCMD_COMPS:%=%.d)\n" }, { "path": "README", "content": "Triggerhappy\n- a lightweight hotkey daemon -\n\nby Stefan Tomanek \nhttp://github.com/wertarbyte/triggerhappy/\n\nTriggerhappy is a hotkey daemon developed with small and embedded systems in\nmind, e.g. linux based routers. It attaches to the input device files and\ninterprets the event data received and executes scripts configured in its\nconfiguration.\n\nExamples:\n\nDump all events received through two device files:\n\n\tthd --dump /dev/input/event0 /dev/input/event1\n\nEvent handlers can be defined in configuration files (specified by --triggers).\nIf a directory is specified, all configuration files within matching the\npattern *.conf are loaded. The files use the following format:\n\n\t\t\n\ne.g.\n\nKEY_VOLUMEUP\t1\t\t/usr/bin/amixer set Master 5%+\nKEY_VOLUMEUP\t2\t\t/usr/bin/amixer set Master 5%+\nKEY_VOLUMEDOWN\t1\t\t/usr/bin/amixer set Master 5%-\nKEY_VOLUMEDOWN\t2\t\t/usr/bin/amixer set Master 5%-\n\nA value of 1 corresponds to pressing a key, while 2 is generated by\nholding it; releasing it yields a value of 0.\n\nIt is also possible to append up to 5 modifiers to each event definition by\nappending their names to the event name:\n\nKEY_VOLUMEUP+KEY_LEFTSHIFT\t1\t/usr/bin/amixer set Master 15%+\n\nDevices can be added dynamically by specifying a command socket:\n\nthd --socket /var/run/triggerhappy.socket --triggers /etc/triggerhappy.d/\n\nThe program th-cmd is used to add new devices to the daemon:\n\nth-cmd --socket /var/run/triggerhappy.socket --add /dev/input/event0\nth-cmd --socket /var/run/triggerhappy.socket --remove /dev/input/event3\n\nAn example udev script is also included to facilitate this hotplug\nsupport - for this use, th-cmd can handle the parameter \"udev\" to\ndeduce the device name and action from the udev environment.\n\nFor more information, consult the manual pages of \"thd\" and \"th-cmd\".\n" }, { "path": "cmdsocket.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#ifdef HAVE_SYSTEMD\n#include \n#endif\n\n#include \"devtag.h\"\n#include \"devices.h\"\n#include \"command.h\"\n#include \"cmdsocket.h\"\n\nint bind_cmdsocket( char *name ) {\n\tint cmd_fd;\n\n#ifdef HAVE_SYSTEMD\n\tif (sd_listen_fds(0) == 1) {\n\t\tfprintf(stderr, SD_DEBUG \"Found socket passed from systemd\\n\");\n\t\treturn SD_LISTEN_FDS_START + 0;\n\t}\n#endif\n\n\tstruct sockaddr_un addr;\n\t/* remove any stale files */\n\tstruct stat sb;\n\tint serr = stat(name, &sb);\n\tif ( !serr && S_ISSOCK(sb.st_mode)) {\n\t\tunlink(name);\n\t}\n\tcmd_fd = socket(AF_UNIX, SOCK_DGRAM, 0);\n\tstrcpy(addr.sun_path, name);\n\taddr.sun_family = AF_UNIX;\n\tbind (cmd_fd, (struct sockaddr *) &addr, \n\t\tstrlen(addr.sun_path) + sizeof (addr.sun_family));\n\treturn cmd_fd;\n}\n\nint connect_cmdsocket( char *name ) {\n\tint fd;\n\tstruct sockaddr_un server;\n\tfd = socket(AF_UNIX, SOCK_DGRAM, 0);\n\tstrcpy(server.sun_path, name);\n\tserver.sun_family = AF_UNIX;\n\tconnect(fd, (struct sockaddr *) &server,\n\t\tstrlen(server.sun_path) + sizeof (server.sun_family));\n\treturn fd;\n}\n\nstruct command *read_command( int cmd_fd ) {\n\tstruct command *cmd = malloc(sizeof(struct command));\n\tif (! cmd) {\n\t\tfprintf(stderr, \"Unable to allocate memory for command!\\n\");\n\t\treturn NULL;\n\t}\n\n\tint fd[1] = {-1};\n\tchar buffer[CMSG_SPACE(sizeof fd)];\n\n\tstruct iovec v = {\n\t\t.iov_base = cmd,\n\t\t.iov_len = sizeof(*cmd)\n\t};\n\tstruct msghdr msg = {\n\t\t.msg_iov = &v,\n\t\t.msg_iovlen = 1,\n\t\t.msg_control = buffer,\n\t\t.msg_controllen = sizeof(buffer)\n\t};\n\n\tint done = recvmsg( cmd_fd, &msg, 0 );\n\n\tif (done == -1) {\n\t\tfprintf(stderr, \"Error reading command.\");\n\t\tfree(cmd);\n\t\treturn NULL;\n\t}\n\tstruct cmsghdr *cmessage = CMSG_FIRSTHDR(&msg);\n\tif (cmessage) {\n\t\tmemcpy(fd, CMSG_DATA(cmessage), sizeof fd);\n\t\t/* place FD back in the command message */\n\t\tcmd->fd = (int) fd[0];\n\t}\n\treturn cmd;\n}\n\nint send_command( int cmd_fd, enum command_type type, char *param, int passfd, int exclusive, char *tag ) {\n\tif (type == CMD_ADD && passfd == 1) {\n\t\ttype = CMD_PASSFD;\n\t}\n\tstruct command cmd = {\n\t\t.fd = -1,\n\t\t.exclusive = exclusive,\n\t\t.type = type,\n\t\t.param = {0},\n\t\t.tag = {0}\n\t};\n\tif (param != NULL) {\n\t\tstrncpy(cmd.param, param, TH_COMMAND_PARAM_LENGTH);\n\t\tcmd.param[TH_COMMAND_PARAM_LENGTH-1] = '\\0';\n\t}\n\tif (tag != NULL) {\n\t\tstrncpy(cmd.tag, tag, TH_DEVICE_TAG_LENGTH);\n\t\tcmd.tag[TH_DEVICE_TAG_LENGTH-1] = '\\0';\n\t}\n\n\tstruct iovec v = {\n\t\t.iov_base = &cmd,\n\t\t.iov_len = sizeof(cmd)\n\t};\n\tstruct msghdr m = {\n\t\t.msg_iov = &v,\n\t\t.msg_iovlen = 1\n\t};\n\n\t/* add FD */\n\tint dev_fd[1] = { -1 };\n\tchar buffer[CMSG_SPACE(sizeof(dev_fd))];\n\tif (passfd) {\n\t\tint fd = open( param, O_RDONLY );\n\t\tif (fd < 0) {\n\t\t\tperror(\"open\");\n\t\t\treturn 1;\n\t\t}\n\t\tdev_fd[0] = fd ;\n\t\tm.msg_control = buffer;\n\t\tm.msg_controllen = sizeof(buffer);\n\n\t\tstruct cmsghdr *cmessage = CMSG_FIRSTHDR(&m);\n\t\tcmessage->cmsg_level = SOL_SOCKET;\n\t\tcmessage->cmsg_type = SCM_RIGHTS;\n\t\tcmessage->cmsg_len = CMSG_LEN(sizeof(dev_fd));\n\n\t\tm.msg_controllen = cmessage->cmsg_len;\n\t\tmemcpy(CMSG_DATA(cmessage), dev_fd, sizeof dev_fd);\n\t}\n\tint done = sendmsg( cmd_fd, &m, 0 );\n\treturn (done == -1);\n}\n" }, { "path": "cmdsocket.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\nint bind_cmdsocket(char *name);\nstruct command *read_command(int cmd_fd);\nint send_command(int cmd_fd, enum command_type type, char *param, int passfd, int exclusive, char *tag);\nint connect_cmdsocket(char *name);\n" }, { "path": "command.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \"devtag.h\"\n#define TH_COMMAND_PARAM_LENGTH 256\n\nenum command_type {\n\tCMD_NOP,\n\tCMD_ADD,\n\tCMD_REMOVE,\n\tCMD_QUIT,\n\tCMD_DISABLE,\n\tCMD_ENABLE,\n\tCMD_PASSFD,\n\tCMD_CLEARDEVS,\n\tCMD_CHANGEMODE\n};\n\nstruct command {\n\tenum command_type type;\n\t/* udev pathnames are long, but not that long */\n\tchar param[TH_COMMAND_PARAM_LENGTH];\n\tint fd;\n\tint exclusive;\n\tchar tag[TH_DEVICE_TAG_LENGTH];\n};\n" }, { "path": "devices.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#include \"devices.h\"\n#include \"eventnames.h\"\n\n#define BITFIELD uint32_t\n\nstatic device *device_list = NULL;\n\nchar *get_device_description(int fd) {\n\tchar descr[256] = \"Unknown\";\n\tif(ioctl(fd, EVIOCGNAME(sizeof(descr)), descr) < 0) {\n\t\tperror(\"evdev ioctl\");\n\t}\n\treturn strdup(descr);\n}\n\nstatic __inline__ int test_bit(int nr, BITFIELD * addr) {\n\tBITFIELD mask;\n\n\taddr += nr >> 5;\n\tmask = 1 << (nr & 0x1f);\n\treturn ((mask & *addr) != 0);\n}\n\nint device_is_suitable(int fd) {\n\tBITFIELD bits[32];\n\tint rc = ioctl(fd, EVIOCGBIT(0,sizeof(bits)), bits);\n\treturn rc > 0 && (\n\t\t/* we only consider devices with keys or switches suitable */\n\t\ttest_bit(EV_KEY, bits) || test_bit(EV_SW, bits)\n\t);\n}\n\nvoid add_device(char *dev, int fd, int excl, char *tag) {\n\tdevice **p = &device_list;\n\t// find end of list\n\twhile (*p != NULL) {\n\t\tp = &( (*p)->next );\n\t}\n\tif (fd < 0) {\n\t\tfd = open( dev, O_RDONLY );\n\t}\n\tif (fd >= 0) {\n\t\tif (! device_is_suitable(fd) ) {\n\t\t\tfprintf(stderr, \"Device %s not suitable.\\n\", dev);\n\t\t\tclose(fd);\n\t\t\treturn;\n\t\t}\n\t\t/* grab device exclusively */\n\t\tif (excl) {\n\t\t\tif (ioctl(fd, EVIOCGRAB, 1) == -1) {\n\t\t\t\tfprintf(stderr, \"Device %s cannot be grabbed exclusively.\\n\", dev);\n\t\t\t\tclose(fd);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\t\t*p = malloc(sizeof(device));\n\t\tif (*p == NULL) goto nomem_cleanup;\n\t\tmemset(*p, 0, sizeof(device));\n\t\t(*p)->devname = strdup(dev);\n\t\tif ((*p)->devname == NULL) goto nomem_cleanup;\n\t\t(*p)->fd = fd;\n\t\t(*p)->exclusive = excl;\n\t\tif (tag) {\n\t\t\tstrncpy((*p)->tag, tag, TH_DEVICE_TAG_LENGTH);\n\t\t\t(*p)->tag[TH_DEVICE_TAG_LENGTH-1] = '\\0';\n\t\t}\n\t\t(*p)->next = NULL;\n\t} else {\n\t\tfprintf( stderr, \"Error opening '%s': %s\\n\", dev, strerror(errno) );\n\t}\n\treturn;\nnomem_cleanup:\n\tfprintf(stderr, \"Unable to allocate memory for new device!\\n\");\n\tif (*p) {\n\t\tfree( (*p)->devname );\n\t}\n\tfree(*p);\n\t*p = NULL;\n}\n\nint remove_device(char *dev) {\n\tdevice **p = &device_list;\n\twhile (*p != NULL) {\n\t\tif ( strcmp( (*p)->devname, dev ) == 0 ) {\n\t\t\tdevice *copy = *p;\n\t\t\t/* bypass the list item */\n\t\t\t*p = copy->next;\n\t\t\tclose(copy->fd);\n\t\t\tfree(copy->devname);\n\t\t\tfree(copy);\n\t\t\treturn 1;\n\t\t}\n\t\t/* advance to the next node */\n\t\tp = &( (*p)->next );\n\t}\n\t/* reached the end of the list */\n\treturn 0;\n}\n\nvoid clear_devices(void) {\n\tdevice *p = device_list;\n\twhile (p != NULL) {\n\t\tdevice *next = p->next;\n\t\tclose(p->fd);\n\t\tfree(p->devname);\n\t\tfree(p);\n\t\tp = next;\n\t}\n\tdevice_list = NULL;\n}\n\nint count_devices(void) {\n\tint n = 0;\n\tdevice *p = device_list;\n\twhile (p != NULL) {\n\t\tn++;\n\t\tp = p->next;\n\t}\n\treturn n;\n}\n\nvoid for_each_device( void(*func)(device*) ) {\n\tdevice *p = device_list;\n\twhile (p != NULL) {\n\t\tfunc( p );\n\t\tp = p->next;\n\t}\n}\n" }, { "path": "devices.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \"devtag.h\"\n\ntypedef struct device {\n\tint fd;\n\tchar *devname;\n\tint exclusive;\n\tchar tag[TH_DEVICE_TAG_LENGTH];\n\tstruct device *next;\n} device;\n\nvoid add_device(char *dev, int fd, int excl, char *tag);\nint remove_device(char *dev);\nvoid clear_devices(void);\nint count_devices(void);\n\nvoid for_each_device( void(*func)(device*) );\n\nchar *get_device_description(int fd);\n" }, { "path": "devtag.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#define TH_DEVICE_TAG_LENGTH 256\n" }, { "path": "eventnames.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \"eventnames.h\"\n#include \"eventtable.h\"\n\nconst char *lookup_event_name_i( const int evtype, const int evcode ) {\n\tswitch(evtype) {\n\t\tcase EV_KEY:\n\t\t\treturn (KEY_MAX >= evcode ? KEY_NAME[ evcode ] : NULL);\n\t\tcase EV_SW:\n\t\t\treturn (SW_MAX >= evcode ? SW_NAME[ evcode ] : NULL);\n\t\tcase EV_REL:\n\t\t\treturn (REL_MAX >= evcode ? REL_NAME[ evcode ] : NULL);\n\t\tcase EV_ABS:\n\t\t\treturn (ABS_MAX >= evcode ? ABS_NAME[ evcode ] : NULL);\n\t\tdefault:\n\t\t\treturn NULL;\n\t}\n}\n\nconst char *lookup_event_name( const struct input_event ev ) {\n\treturn lookup_event_name_i( ev.type, ev.code );\n}\n\nconst char *lookup_type_name_i( const int evtype ) {\n\treturn (EV_MAX >= evtype ? EV_NAME[ evtype ] : NULL);\n}\n\nconst char *lookup_type_name( const struct input_event ev ) {\n\treturn lookup_type_name_i( ev.type );\n}\n\nstatic int lookup_index(const char **map, const char *value, int max) {\n\tint i = 0;\n\twhile (i <= max) {\n\t\tif (map[i] != NULL &&\n\t\t strcmp(value, map[i]) == 0) {\n\t\t\treturn i;\n\t\t}\n\t\ti++;\n\t}\n\treturn -1;\n}\n\nint lookup_event_code( const char *eventname ) {\n\tint res = -1;\n\tif (res == -1) res = lookup_index(KEY_NAME, eventname, KEY_MAX);\n\tif (res == -1) res = lookup_index(SW_NAME, eventname, SW_MAX);\n\tif (res == -1) res = lookup_index(REL_NAME, eventname, REL_MAX);\n\tif (res == -1) res = lookup_index(ABS_NAME, eventname, ABS_MAX);\n\treturn res;\n}\n\nint lookup_event_type( const char *eventname ) {\n\tif (lookup_index(KEY_NAME, eventname, KEY_MAX) != -1) {\n\t\treturn EV_KEY;\n\t}\n\tif (lookup_index(SW_NAME, eventname, SW_MAX) != -1) {\n\t\treturn EV_SW;\n\t}\n\tif (lookup_index(REL_NAME, eventname, REL_MAX) != -1) {\n\t\treturn EV_REL;\n\t}\n\tif (lookup_index(ABS_NAME, eventname, ABS_MAX) != -1) {\n\t\treturn EV_ABS;\n\t}\n\treturn -1;\n}\n" }, { "path": "eventnames.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n\nconst char *lookup_event_name_i(const int evtype, const int evcode);\nconst char *lookup_event_name(const struct input_event ev);\n\nconst char *lookup_type_name_i(const int evtype);\nconst char *lookup_type_name(const struct input_event ev);\n\nint lookup_event_code(const char *eventname);\nint lookup_event_type(const char *eventname);\n" }, { "path": "eventtable.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n\n#define EV_MAP( N ) [ N ] = #N\n\nstatic const char *EV_NAME[EV_CNT] = {\n#include \"evtable_EV.inc\"\n};\n\nstatic const char *KEY_NAME[KEY_CNT] = {\n#include \"evtable_KEY.inc\"\n#include \"evtable_BTN.inc\"\n};\n\nstatic const char *REL_NAME[REL_CNT] = {\n#include \"evtable_REL.inc\"\n};\n\nstatic const char *ABS_NAME[ABS_CNT] = {\n#include \"evtable_ABS.inc\"\n};\n\nstatic const char *SW_NAME[SW_CNT] = {\n#include \"evtable_SW.inc\"\n};\n" }, { "path": "ignore.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \"ignore.h\"\n\nvoid ignore_key( int code, ignore **list ) {\n\tignore **p = list;\n\twhile ( *p != NULL ) {\n\t\tp = &( (*p)->next );\n\t}\n\t*p = malloc( sizeof(ignore) );\n\tif (*p) {\n\t\t(*p)->next = NULL;\n\t\t(*p)->code = code;\n\t} else {\n\t\tfprintf(stderr, \"Unable to allocate memory for ignored key!\\n\");\n\t}\n}\n\nvoid print_ignores( ignore *list ) {\n\tignore *p = list;\n\twhile ( p != NULL ) {\n\t\tp = p->next;\n\t}\n}\n\nint is_ignored( int code, ignore *list ) {\n\tignore *p = list;\n\twhile ( p != NULL ) {\n\t\tif (p->code == code) {\n\t\t\treturn 1;\n\t\t}\n\t\tp = p->next;\n\t}\n\treturn 0;\n}\n" }, { "path": "ignore.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\ntypedef struct ignore {\n\tint code;\n\tstruct ignore *next;\n} ignore;\n\nvoid ignore_key( int code, ignore **list );\nint is_ignored( int code, ignore *list );\nvoid clear_ignore_list( ignore **list );\n" }, { "path": "keystate.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \"eventnames.h\"\n#include \"keystate.h\"\n\nvoid init_keystate_holder(keystate_holder **ksh) {\n\tif (*ksh == NULL) {\n\t\t*ksh = malloc(sizeof(keystate_holder));\n\t}\n\tif (*ksh == NULL) {\n\t\tfprintf(stderr, \"Unable to allocate memory for keystate table!\\n\");\n\t\treturn;\n\t}\n\tint i;\n\tfor (i=0; i<=KEY_MAX; i++) {\n\t\t(**ksh)[i] = 0;\n\t}\n}\n\n/*\n * Keep track of a pressed or released key\n */\nvoid change_keystate( keystate_holder ksh, struct input_event ev ) {\n\tif (ev.type != EV_KEY)\n\t\treturn;\n\tif (ev.code > KEY_MAX)\n\t\treturn;\n\tswitch(ev.value) {\n\t\tcase 1: // pressed\n\t\t\tksh[ev.code]++;\n\t\t\tbreak;\n\t\tcase 0: // released\n\t\t\tif (ksh[ev.code] > 0) {\n\t\t\t\tksh[ev.code]--;\n\t\t\t}\n\t\t\tbreak;\n\t}\n}\n\nchar *get_keystate(keystate_holder ksh) {\n\treturn get_keystate_ignore_key( ksh, -1 );\n}\n\nchar *get_keystate_ignore_key(keystate_holder ksh, int ignore_key) {\n\tconst int bsize = 1024;\n\tchar *KS = \"+\";\n\n\tchar buf[bsize];\n\tbuf[0] = '\\0';\n\n\tint i;\n\tint n = 0;\n\tfor (i=0; i<=KEY_MAX; i++) {\n\t\tif (i != ignore_key && ksh[i] > 0) {\n\t\t\tif (n>0) {\n\t\t\t\tstrncat( buf, KS, bsize-1-strlen(KS) );\n\t\t\t}\n\t\t\tconst char *name = lookup_event_name_i(EV_KEY, i);\n\t\t\tstrncat( &(buf[0]), name, bsize-1-strlen(buf) );\n\t\t\tn++;\n\t\t}\n\t}\n\tchar *res = malloc( sizeof(char) * (1+strlen(buf)) );\n\tif (res) {\n\t\tstrcpy( res, buf );\n\t}\n\treturn res;\n}\n" }, { "path": "keystate.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \ntypedef unsigned short keystate_holder[KEY_MAX+1];\n\nvoid init_keystate_holder(keystate_holder**);\nvoid change_keystate(keystate_holder, struct input_event);\nchar *get_keystate(keystate_holder);\nchar *get_keystate_ignore_key(keystate_holder, int ignore_key);\n" }, { "path": "obey.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \"devices.h\"\n#include \"command.h\"\n#include \"keystate.h\"\n#include \"trigger.h\"\n#include \"thd.h\"\n\nint obey_command( struct command *cmd ) {\n\tif (cmd->type == CMD_ADD) {\n\t\tadd_device( cmd->param, -1, cmd->exclusive, cmd->tag );\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_PASSFD) {\n\t\tadd_device( cmd->param, cmd->fd, cmd->exclusive, cmd->tag );\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_REMOVE) {\n\t\tremove_device( cmd->param );\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_QUIT) {\n\t\tcleanup();\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_ENABLE) {\n\t\ttriggers_enabled(1);\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_DISABLE) {\n\t\ttriggers_enabled(0);\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_CLEARDEVS) {\n\t\tclear_devices();\n\t\treturn 0;\n\t}\n\tif (cmd->type == CMD_CHANGEMODE) {\n\t\tchange_trigger_mode( cmd->param );\n\t\treturn 0;\n\t}\n\treturn 1;\n}\n" }, { "path": "obey.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\nint obey_command( struct command *cmd );\n" }, { "path": "systemd/triggerhappy.service", "content": "[Unit]\nDescription=triggerhappy global hotkey daemon\nAfter=local-fs.target\n\n[Service]\nType=notify\nExecStart=/usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket --user nobody --deviceglob /dev/input/event*\n\n[Install]\nWantedBy=multi-user.target\n" }, { "path": "systemd/triggerhappy.socket", "content": "[Socket]\nListenStream=/run/thd.socket\n\n[Install]\nWantedBy=sockets.target\n" }, { "path": "th-cmd.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#include \"devices.h\"\n#include \"command.h\"\n#include \"cmdsocket.h\"\n\n#include \"version.h\"\n\nvoid show_help(void) {\n\tfprintf( stderr, \"Triggerhappy command \" TH_VERSION \"\\n\");\n\tfprintf( stderr, \"Use:\\n\");\n\tfprintf( stderr, \" th-cmd --socket [--grab] [--passfd] --add \\n\");\n\tfprintf( stderr, \" th-cmd --socket --remove \\n\");\n\tfprintf( stderr, \" th-cmd --socket --clear\\n\");\n\tfprintf( stderr, \" th-cmd --socket --enable\\n\");\n\tfprintf( stderr, \" th-cmd --socket --disable\\n\");\n\tfprintf( stderr, \" th-cmd --socket --mode \\n\");\n\tfprintf( stderr, \" th-cmd --socket --quit\\n\");\n\tfprintf( stderr, \" th-cmd --socket --help\\n\");\n}\n\nint main(int argc, char *argv[]) {\n\tchar *socket = NULL;\n\tstatic int passfd = 0;\n\tstatic int grab_dev = 0;\n\tstatic int op_add = 0;\n\tstatic int op_rem = 0;\n\tstatic int op_clear = 0;\n\tstatic int op_udev = 0;\n\tstatic int op_en = 0;\n\tstatic int op_dis = 0;\n\tstatic int op_mode = 0;\n\tstatic int op_quit = 0;\n\tenum command_type ctype = CMD_NOP;\n\n\tchar *tag = NULL;\n\n\tstatic struct option long_options[] = {\n\t\t{ \"socket\", 1, 0, 's' },\n\t\t{ \"add\", 0, &op_add, 1 },\n\t\t{ \"remove\", 0, &op_rem, 1 },\n\t\t{ \"clear\", 0, &op_clear, 1 },\n\t\t{ \"udev\", 0, &op_udev, 1 },\n\t\t{ \"passfd\", 0, &passfd, 1 },\n\t\t{ \"grab\", 0, &grab_dev, 1 },\n\t\t{ \"enable\", 0, &op_en, 1 },\n\t\t{ \"disable\", 0, &op_dis, 1 },\n\t\t{ \"mode\", 0, &op_mode, 1 },\n\t\t{ \"quit\", 0, &op_quit, 1 },\n\t\t{ \"help\", 0, 0, 'h' },\n\t\t{ \"tag\", required_argument, 0, 't' },\n\t\t{ 0, 0, 0, 0 }\n\t};\n\n\tint c;\n\twhile (1) {\n\t\tint option_index = 0;\n\t\tc = getopt_long(argc, argv, \"s:t:\", long_options, &option_index);\n\t\tif (c == -1) {\n\t\t\tbreak;\n\t\t}\n\t\tswitch(c) {\n\t\t\tcase 's':\n\t\t\t\tsocket = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 't':\n\t\t\t\ttag = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 'h':\n\t\t\tcase '?':\n\t\t\tcase -1:\n\t\t\t\tshow_help();\n\t\t\t\treturn 1;\n\t\t}\n\t}\n\n\tif ( op_add + op_rem + op_clear + op_udev + op_en + op_dis + op_mode + op_quit != 1 ) {\n\t\tfprintf(stderr, \"A single command must be specified!\\n\");\n\t\tshow_help();\n\t\treturn 1;\n\t}\n\n\tif (! socket ) {\n\t\tfprintf(stderr, \"No socket specified!\\n\");\n\t\tshow_help();\n\t\treturn 1;\n\t}\n\tint s = connect_cmdsocket( socket );\n\tif (s < 0) {\n\t\tperror(\"connect()\");\n\t\treturn 1;\n\t}\n\n\tint err = 0;\n\tif (op_udev) {\n\t\tif (strcasecmp(\"add\", getenv(\"ACTION\")) == 0) {\n\t\t\tctype = CMD_ADD;\n\t\t} else if (strcasecmp(\"remove\", getenv(\"ACTION\")) == 0) {\n\t\t\tctype = CMD_REMOVE;\n\t\t}\n\t\tchar *dev = getenv(\"DEVNAME\");\n\t\tif ( ctype && dev ) {\n\t\t\terr = send_command( s, ctype, dev, passfd, grab_dev, tag );\n\t\t}\n\t} else {\n\t\t/* get devices from command line */\n\t\tif (op_add) ctype = CMD_ADD;\n\t\telse if (op_rem) ctype = CMD_REMOVE;\n\t\telse if (op_clear) ctype = CMD_CLEARDEVS;\n\t\telse if (op_en) ctype = CMD_ENABLE;\n\t\telse if (op_dis) ctype = CMD_DISABLE;\n\t\telse if (op_mode) ctype = CMD_CHANGEMODE;\n\t\telse if (op_quit) ctype = CMD_QUIT;\n\n\t\tif ( ctype == CMD_NOP) {\n\t\t\tshow_help();\n\t\t}\n\t\tswitch (ctype) {\n\t\t\tcase CMD_CLEARDEVS:\n\t\t\tcase CMD_ENABLE:\n\t\t\tcase CMD_DISABLE:\n\t\t\tcase CMD_QUIT:\n\t\t\t\terr = send_command( s, ctype, \"\", 0, 0, tag);\n\t\t\t\tbreak;\n\t\t\tcase CMD_CHANGEMODE:\n\t\t\t\terr = send_command( s, ctype,\n\t\t\t\t\t\t(optind < argc) ? argv[optind] : \"\",\n\t\t\t\t\t\t0, 0, tag );\n\t\t\t\tbreak;\n\t\t\tcase CMD_ADD:\n\t\t\tcase CMD_REMOVE:\n\t\t\t\twhile (optind < argc && err == 0) {\n\t\t\t\t\terr = send_command( s, ctype, argv[optind++], passfd, grab_dev, tag );\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\terr = 1;\n\t\t}\n\t\tif (err != 0) {\n\t\t\tperror(\"send_command\");\n\t\t}\n\t}\n\tclose(s);\n\treturn err;\n}\n" }, { "path": "th-cmd.pod", "content": "=pod\n\n=head1 NAME\n\nth-cmd -- triggerhappy commander\n\n=head1 SYNOPSIS\n\nB --socket B<< >> [B<--passfd>] [B<--tag> I<< >>] [B<--clear>|B<--enable>|B<--disable>|B<--mode> I<< >>|B<--quit>|B<--udev>|B<--add> F<< >>|B<--remove> F<< >>]\n\n=head1 DESCRIPTION\n\nThis program is used to issue commands to a running triggerhappy daemon. It utilizes an unix domain socket bound by the daemon.\n\n=head1 OPTIONS\n\n=over\n\n=item B<--socket> F\n\nThe socket file opened by the running triggerhappy daemon instance.\n\n=item B<--add> F<< >>\n\nInstruct the running daemon to open the input devices specified on the command line\n\n=item B<--remove> F<< >>\n\nRemove specified devices from the running daemon.\n\n=item B<--clear>\n\nRemove all devices from the running daemon.\n\n=item B<--udev>\n\nDeduce operation and device name from udev environment (for use in udev rules).\n\n=item B<--disable>\n\nDisable the execution of triggers.\n\n=item B<--enable>\n\nRe-enable the execution of triggers.\n\n=item B<--mode> I<< >>\n\nChange the mode of the triggerhappy daemon to I<< >>. If no new mode is specified, the daemon switches to default mode.\n\n=item B<--quit>\n\nTerminate the triggerhappy daemon.\n\n=item B<--passfd>\n\nInstead of instructing the daemon to open the device, open the device and pass the file descriptor to the daemon. This allows the adding of new devices to a daemon having dropped its privileges, however the th-cmd process must have access to the device file.\n\n=item B<--grab>\n\nGrab the device; the triggerhappy daemon will try to get exclusive access to the device, other applications will not receive the events emitted by it.\n\n=item B<--tag> F\n\nLabel the added device with the tag I<< >>; this can be used to limit the scope of event\nhandlers to a subset of input devices.\n\n=back\n\n=head1 AUTHOR\n\nStefan Tomanek Estefan.tomanek+th@wertarbyte.deE\n\n" }, { "path": "thd.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#ifdef HAVE_SYSTEMD\n#include \n#endif\n\n#include \"thd.h\"\n#include \"eventnames.h\"\n#include \"devices.h\"\n#include \"keystate.h\"\n#include \"trigger.h\"\n#include \"command.h\"\n#include \"cmdsocket.h\"\n#include \"obey.h\"\n#include \"ignore.h\"\n#include \"uinput.h\"\n\n/* version information */\n#include \"version.h\"\n\n/* command channel & FD */\nstatic char *cmd_file = NULL;\nstatic int cmd_fd = -1;\n\nstatic char *uinput_dev = NULL;\n\nstatic int dump_events = 0;\nstatic int run_as_daemon = 0;\n\nstatic char *triggerfile = NULL;\nstatic char *pidfile = NULL;\n\nstatic keystate_holder *keystate = NULL;\n\nstatic ignore *ignored_keys = NULL;\n\nstatic int normalize_events = 0;\n\nstatic char *user = NULL;\n\nstatic int exiting = 0;\nstatic int reload_conf = 0;\n\n/* forward declarations */\nstatic int reload_triggerfile();\n\n/* FDs to watch */\nstatic fd_set rfds;\nstatic int max_fd = -1;\n\n/*\n * Look up event and key names and print them to STDOUT\n */\nstatic void print_event(char* dev, struct input_event ev) {\n\tconst char *typename = lookup_type_name( ev );\n\tconst char *evname = lookup_event_name( ev );\n\tif ( evname != NULL ) {\n\t\tprintf( \"%s\\t%s\\t%d\\t%s\\n\", typename, evname, ev.value, dev );\n\t} else {\n\t\tfprintf( stderr, \"Unknown %s event id on %s : %d (value %d)\\n\", typename, dev, ev.code, ev.value );\n\t}\n\tfflush(stdout);\n}\n\nstatic void print_triggerline(struct input_event ev, keystate_holder ksh) {\n\tconst char *evname = lookup_event_name( ev );\n\tchar *state = ( ev.type == EV_KEY ? get_keystate_ignore_key( ksh, ev.code ) : NULL);\n\tconst int d = (state && strlen(state)>0);\n\tif ( evname != NULL ) {\n\t\tprintf( \"# %s%s%s\\t%d\\tcommand\\n\", state?state:\"\", d?\"+\":\"\", evname, ev.value );\n\t\tfflush(stdout);\n\t}\n\tfree(state);\n}\n\n/*\n * Read event from fd, decode it and pass it to handlers\n */\nstatic int read_event( device *dev ) {\n\tint fd = dev->fd;\n\tchar *devname = dev->devname;\n\tstruct input_event ev;\n\tint n = read( fd, &ev, sizeof(ev) );\n\tif ( n != sizeof(ev) ) {\n\t\tfprintf(stderr, \"Error reading device '%s'\\n\", dev->devname);\n\t\treturn 1;\n\t}\n\t/* ignore all events except KEY, SW and REL*/\n\tif (ev.type == EV_KEY || ev.type == EV_SW || ev.type == EV_REL || ev.type == EV_ABS) {\n\t\tif (ev.type == EV_KEY && is_ignored( ev.code, ignored_keys)) {\n\t\t\treturn 0;\n\t\t}\n\t\tif ((ev.type == EV_REL || ev.type == EV_ABS) && normalize_events) {\n\t\t\tif (ev.value > 0) {\n\t\t\t\tev.value = 1;\n\t\t\t} else if (ev.value < 0) {\n\t\t\t\tev.value = -1;\n\t\t\t}\n\t\t}\n\t\tif (dump_events) {\n\t\t\tprint_event( devname, ev );\n\t\t\tprint_triggerline( ev, *keystate );\n\t\t}\n\t\trun_triggers( ev.type, ev.code, ev.value, *keystate, dev );\n\t\tchange_keystate( *keystate, ev );\n\t}\n\treturn 0;\n}\n\nstatic void check_device( device *d ) {\n\tint fd = d->fd;\n\tif (FD_ISSET( fd, &rfds )) {\n\t\tif (read_event( d )) {\n\t\t\t/* read error? Remove the device! */\n\t\t\tremove_device( d->devname );\n\t\t}\n\t}\n}\n\nstatic void process_devices(void) {\n\tfor_each_device( &check_device );\n}\n\nstatic void add_device_to_fdset( device *d ) {\n\tint fd = d->fd;\n\tif (fd > max_fd) {\n\t\tmax_fd = fd;\n\t}\n\tFD_SET( fd, &rfds );\n}\n\n\nstatic void process_events(void) {\n\tstruct timeval tv;\n\tint retval;\n\t/* loop as long as we have at least one device or\n\t * the command channel\n\t */\n\twhile ( count_devices() > 0 || cmd_fd != -1 ) {\n\t\tFD_ZERO( &rfds );\n\t\tmax_fd = -1;\n\t\t/* add device fds */\n\t\tfor_each_device( &add_device_to_fdset );\n\t\t/* add command channel */\n\t\tif (cmd_fd != -1) {\n\t\t\tFD_SET( cmd_fd, &rfds );\n\t\t\tmax_fd = cmd_fd > max_fd ? cmd_fd : max_fd;\n\t\t}\n\t\ttv.tv_sec = 5;\n\t\ttv.tv_usec = 0;\n\t\tretval = select(max_fd+1, &rfds, NULL, NULL, &tv);\n\t\tif (retval == -1 && errno != EINTR) {\n\t\t\tperror(\"select()\");\n\t\t\tcontinue;\n\t\t} else if (exiting) {\n\t\t\tbreak;\n\t\t} else if (reload_conf) {\n\t\t\treload_conf = 0;\n\t\t\treload_triggerfile();\n\t\t\tcontinue;\n\t\t} else if (retval) {\n\t\t\tprocess_devices();\n\t\t\tif ( cmd_fd != -1 && FD_ISSET( cmd_fd, &rfds ) ) {\n\t\t\t\tstruct command *cmd = read_command( cmd_fd );\n\t\t\t\tobey_command( cmd );\n\t\t\t\tfree(cmd);\n\t\t\t}\n\t\t}\n\t}\n}\n\nstatic int write_pidfile( char *pidfile ) {\n\tFILE *pid = fopen( pidfile, \"w+\" );\n\tif (pid == NULL) {\n\t\treturn 1;\n\t}\n\tfprintf(pid, \"%u\\n\", (unsigned int) getpid());\n\treturn fclose(pid);\n}\n\nstatic struct option long_options[] = {\n\t{\"dump\",\tno_argument, &dump_events, 1},\n\t{\"daemon\",\tno_argument, &run_as_daemon, 1},\n\t{\"user\",\trequired_argument, 0, 'u'},\n\t{\"pidfile\",\trequired_argument, 0, 'p'},\n\t{\"triggers\",\trequired_argument, 0, 't'},\n\t{\"socket\",\trequired_argument, 0, 's'},\n\t{\"ignore\",\trequired_argument, 0, 'i'},\n\t{\"normalize\",\tno_argument, &normalize_events, 1},\n\t{\"help\",\tno_argument, 0, 'h'},\n\t{\"uinput\",\trequired_argument, 0, '<'},\n\t{\"listevents\",\tno_argument, 0, 'l'},\n\t{\"deviceglob\",\trequired_argument, 0, 'g'},\n\t{0,0,0,0} /* end of list */\n};\n\nvoid show_help(void) {\n\tprintf( \"Triggerhappy event daemon \" TH_VERSION \"\\n\\n\" );\n\tprintf( \"Usage:\\n\" );\n\tprintf( \" thd [switches] [devices]\\n\\n\" );\n\tprintf( \"Command line switches:\\n\" );\n\tprintf( \" --help Display this help message\\n\" );\n\tprintf( \" --daemon Run as daemon process\\n\" );\n\tprintf( \" --dump Dump events to console\\n\" );\n\tprintf( \" --listevents Print a list of all known events\\n\" );\n\tprintf( \" --triggers Load trigger definitions from \\n\" );\n\tprintf( \" --socket Read commands from socket\\n\" );\n\tprintf( \" --ignore Ignore key events with name \\n\" );\n\tprintf( \" --normalize Normalize relative movement events\\n\" );\n\tprintf( \" --user Drop privileges to after opening devices\\n\" );\n\tprintf( \" --deviceglob

Open device files matching pattern

\\n\" );\n}\n\nstatic void list_event_table(int type, int max) {\n\tint n = 0;\n\tfor (n = 0; n <= max; n++) {\n\t\tconst char *name = lookup_event_name_i(type, n);\n\t\tif (name) {\n\t\t\tprintf(\"%s\\n\", name);\n\t\t}\n\t}\n}\n\nstatic void list_events(void) {\n\tlist_event_table(EV_KEY, KEY_MAX);\n\tlist_event_table(EV_SW, SW_MAX);\n\tlist_event_table(EV_REL, REL_MAX);\n\tlist_event_table(EV_ABS, REL_MAX);\n}\n\nvoid cleanup(void) {\n\tclose_uinput();\n\tif (cmd_file) {\n\t\tif (cmd_fd != -1) {\n\t\t\tclose( cmd_fd );\n\t\t}\n\t\tunlink(cmd_file);\n\t\tcmd_fd = -1;\n\t}\n\tclear_devices();\n\tif (pidfile) {\n\t\tunlink(pidfile);\n\t}\n}\n\nstatic int reload_triggerfile(void) {\n\tclear_triggers();\n\tif (triggerfile) {\n\t\tint err = read_triggers(triggerfile);\n\t\tif (err) {\n\t\t\tfprintf(stderr, \"Error loading triggerfile '%s'\\n\", triggerfile);\n\t\t\treturn 1;\n\t\t}\n\t}\n\treturn 0;\n}\n\nstatic void handle_signal(int sig) {\n\tswitch (sig) {\n\t\tcase SIGINT:\n\t\tcase SIGTERM:\n\t\t\texiting = 1;\n\t\t\tbreak;\n\t\tcase SIGHUP:\n\t\t\treload_conf = 1;\n\t\t\tbreak;\n\t}\n}\n\nint start_readers(int argc, char *argv[], int start, char *dev_glob) {\n\tif (argc-start < 1 && cmd_file == NULL && dev_glob == NULL) {\n\t\tfprintf(stderr, \"No input device files or command pipe specified.\\n\");\n\t\treturn 1;\n\t}\n\t/* open command pipe */\n\tif (cmd_file) {\n\t\tcmd_fd = bind_cmdsocket(cmd_file);\n\t\tif (cmd_fd < 0) {\n\t\t\treturn 1;\n\t\t}\n\t}\n\n\t/* add every device file supplied on command line */\n\tint i;\n\tfor (i=start; ipw_uid;\n\t\t\tint gid = pw->pw_gid;\n\t\t\tif ( initgroups(user, gid) ) {\n\t\t\t\tperror(\"initgroups\");\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t\tif ( setregid( gid, gid ) ) {\n\t\t\t\tperror(\"setregid\");\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t\tif ( setreuid( uid, uid ) ) {\n\t\t\t\tperror(\"setreuid\");\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t} else {\n\t\t\tfprintf(stderr, \"Unable to lookup user '%s'.\\n\", user);\n\t\t\treturn 1;\n\t\t}\n\t}\n\n#ifdef HAVE_SYSTEMD\n\tsd_notify(0, \"READY=1\");\n#endif\n\n\tprocess_events();\n\n\treturn 0;\n}\n\nint main(int argc, char *argv[]) {\n\tsignal(SIGCHLD, SIG_IGN);\n\tchar *dev_glob = NULL;\n\tint option_index = 0;\n\tint c;\n\twhile (1) {\n\t\tc = getopt_long (argc, argv, \"t:s:dhpni:u:g:\", long_options, &option_index);\n\t\tif (c == -1) {\n\t\t\tbreak;\n\t\t}\n\t\tswitch (c) {\n\t\t\tcase 0:\n\t\t\t\tif (long_options[option_index].flag != 0) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tprintf (\"option %s\", long_options[option_index].name);\n\t\t\t\tif (optarg)\n\t\t\t\t\tprintf (\" with arg %s\", optarg);\n\t\t\t\tprintf (\"\\n\");\n\t\t\t\tbreak;\n\t\t\tcase 'd': /* short for --dump */\n\t\t\t\tdump_events = 1;\n\t\t\t\tbreak;\n\t\t\tcase 'p': /* short for --pidfile */\n\t\t\t\tpidfile = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 't':\n\t\t\t\ttriggerfile = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 's':\n\t\t\t\tcmd_file = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 'i':\n\t\t\t\tif ( lookup_event_type(optarg) == EV_KEY ) {\n\t\t\t\t\tignore_key( lookup_event_code(optarg), &ignored_keys );\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase 'h':\n\t\t\t\tshow_help();\n\t\t\t\treturn 0;\n\t\t\tcase 'l':\n\t\t\t\tlist_events();\n\t\t\t\treturn 0;\n\t\t\tcase 'u':\n\t\t\t\tuser = optarg;\n\t\t\t\tbreak;\n\t\t\tcase '<':\n\t\t\t\tuinput_dev = optarg;\n\t\t\t\tbreak;\n\t\t\tcase 'g':\n\t\t\t\tdev_glob = optarg;\n\t\t\t\tbreak;\n\t\t\tcase '?':\n\t\t\tdefault:\n\t\t\t\treturn 1;\n\t\t}\n\t}\n\t/* load config file */\n\tif (reload_triggerfile() != 0) {\n\t\treturn 1;\n\t}\n\t/* init keystate holder */\n\tinit_keystate_holder(&keystate);\n\t/* set initial trigger mode */\n\tchange_trigger_mode(\"\");\n\t/* open uinput if requested */\n\tif (uinput_dev != NULL && open_uinput(uinput_dev) == -1) {\n\t\tfprintf(stderr, \"Error setting up uinput support\\n\");\n\t\treturn 1;\n\t}\n\t/* install signal handler */\n\tstruct sigaction handler;\n\thandler.sa_handler = handle_signal;\n\tsigfillset(&handler.sa_mask);\n\thandler.sa_flags=0;\n\tsigaction(SIGINT,&handler,0);\n\tsigaction(SIGTERM,&handler,0);\n\tsigaction(SIGHUP,&handler,0);\n\n\tint status = start_readers(argc, argv, optind, dev_glob);\n\tcleanup();\n\treturn status;\n}\n\n" }, { "path": "thd.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\nvoid cleanup(void);\n" }, { "path": "thd.pod", "content": "=pod\n\n=head1 NAME\n\nthd -- triggerhappy global hotkey daemon\n\n=head1 SYNOPSIS\n\nB [B<--help>] [B<--user> I] [B<--listevents>] [B<--dump>] [B<--socket> I] [B<--triggers> I] [B<--daemon>] [B<--pidfile> I] [B<--uinput> I][B<--ignore> I] [B<--deviceglob> I] [I]\n\n=head1 DESCRIPTION\n\nTriggerhappy is a hotkey daemon that operates on a system wide scale. It watches all configured input devices\nfor key, switch or button events and can launch arbitrary commands specified by the administrator. In contrast\nto hotkey services provided by desktop environments, Triggerhappy is especially suited to hardware related switches\nlike volume or wifi control; it works independently from a specific user being logged in and is also suitable for embedded systems that do not a graphical user interface.\n\n=head1 OPTIONS\n\n=over\n\n=item B<--help>\n\nShows usage instructions\n\n=item B<--listevents>\n\nPrints a list of all known event names.\n\n=item B<--triggers> F\n\nRead trigger definitions from F, which can either be a file or a directory. If a directory is specified, all its files matching the pattern *.conf are loaded.\n\n=item B<--dump>\n\nDump all recognized events to STDOUT. This can also be utilized to create a skeleton trigger configuration by redirecting the printed configuration lines to a configuration file, adding the desired command and activating the generated line by removing the comment mark \"#\" at its beginning:\n\n thd --dump /dev/input/event* | grep ^# > /etc/triggerhappy/triggers.d/skeleton.conf\n\n=item B<--socket> F\n\nOpen a unix domain socket at F; this socket can be used to send commands to the running daemon (by using the program L), e.g. for adding or removing devices.\n\n=item B<--daemon>\n\nRun as a background daemon and detach from the terminal.\n\n=item B<--pidfile> F\n\nWrite PID to F.\n\n=item B<--uinput> F\n\nOpen uinput file (probably F) to generate synthetic events.\n\n=item B<--ignore> I\n\nIgnore key and switch event labeled I. This can be used to suppress the FN key on some notebooks which only generates events sometimes and might screw up key combinations.\n\n=item B<--normalize>\n\nNormalize REL and ABS events. If this option is enabled, the values of axis movement events are mapped to the three values -1, 0 and 1, depending on the sign of the value reported by the kernel.\n\n=item B<--user> I\n\nChange to user id I after opening files. This usually prevents thd from opening additional input devices, unless they are opened by the th-cmd program and their file descriptor are passed to the daemon.\n\n=item B<--deviceglob> I\n\nOpen device files matching the glob I.\n\n=back\n\nAdditional command line arguments are considered filenames of input devices.\n\n=head1 CONFIGURATION\n\n\n=head2 Configuring event handlers\n\nThe hotkey bindings used by Triggerhappy are set in the configuration file specified by B<--triggers>. Each line consists of three segments:\nThe symbolic name of the key or event name to react on, the value carried by the expected event, and of course the command to be launched.\n\nThe event names can be identified by operating the desired key or switch while running the triggerhappy daemon with the option B<--dump>.\n\nKey events carry the value I<1> for a key being pressed and transmit the payload I<0> when it is released; holding the key down constantly yields events with a value of I<2>.\n\nThe command can include any number of arguments. Please include the full path to avoid trouble through different $PATH settings for the daemon and your interactive session.\n\nThe three fields are separated by an arbitrary number of whitespaces, while anything behind a # character is ignored and considered a comment.\n\n=head1 EXAMPLE\n\n=head2 Starting the daemon\n\nB\n\nDump all events processable by thd to the console; this is useful to find out the correct event name for a specific key.\n\nB\n\nRead from all currently connected input devices and process events according to the files in F.\n\nB\n\nDo not open any input devices yet, but bind the socket F for L to connect to.\n\n=head2 Configuration files\n\nAny number of event handlers can be placed in the configuration file:\n\n # /etc/triggerhappy/triggers.d/suspend.conf\n #\n # Suspend the system\n KEY_SLEEP 1 /usr/sbin/hibernate-ram\n KEY_SLEEP+KEY_LEFTSHIFT 1 /usr/sbin/hibernate-disk\n\n # /etc/triggerhappy/triggers.d/audio.conf\n # Change mixer volume when pressing the appropriate keys (or holding them)\n KEY_VOLUMEUP 1 /usr/bin/amixer set Master 5%+\n KEY_VOLUMEUP 2 /usr/bin/amixer set Master 5%+\n KEY_VOLUMEDOWN 1 /usr/bin/amixer set Master 5%-\n KEY_VOLUMEDOWN 2 /usr/bin/amixer set Master 5%-\n\nIn more complex situations, triggerhappy can provide multiple modes that map a\nsingle event to different keys; triggers are bound to a specific mode by appending\nits name to the event name:\n\n KEY_KPPLUS@media\t1\t/usr/bin/mpc next\n KEY_KPMINUS@media\t1\t/usr/bin/mpc prev\n\nThese two lines will only cause mpc to be called if the triggerhappy daemon is in\n\"media\" mode. Changing the mode can be achieved by placing a special trigger inside\nthe configuration:\n\n KEY_F12@\t\t1\t@media\n KEY_F12@media\t1\t@\n\nThese two lines make the F12 key toggle between the (nameless) default mode and the\nnewly defined media mode.\n\nTriggers with \"@\" appended are only executed if the specified mode is active; all other\ntriggers are enabled in every mode.\n\nWhen launched with the option B<--uinput>, triggerhappy can be used to generate\nsynthetic events. A virtual input device is created which emits specified key\npresses once a special trigger is reached:\n\n KEY_KPASTERISK\t1\t and supply it with a tag; this\ntag can then be used to limit the scope of a trigger to this device:\n\n KEY_ENTER\t1\t/usr/bin/mpc stop\n\nDefining the hotkey in this way will only trigger the handler if the event is received\nfrom a device tagged \"remote\".\n\n=head1 AUTHOR\n\nStefan Tomanek Estefan.tomanek+th@wertarbyte.deE\n\n" }, { "path": "trigger.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \"eventnames.h\"\n#include \"keystate.h\"\n#include \"devices.h\"\n#include \"trigger.h\"\n#include \"uinput.h\"\n\n#include \"triggerparser.h\"\n\nstatic trigger *trigger_list = NULL;\n\nstatic int triggers_are_enabled = 1;\n\nstatic char *trigger_mode = NULL;\n\nchar *get_trigger_mode() {\n\treturn trigger_mode;\n}\n\nvoid change_trigger_mode(const char *mode) {\n\tif (trigger_mode != NULL) {\n\t\tfree(trigger_mode);\n\t\t/* suppress the message on the first change to default mode */\n\t\tfprintf(stderr, \"Changing trigger mode to <%s>\\n\", mode);\n\t}\n\ttrigger_mode = strdup(mode);\n}\n\nvoid triggers_enabled( int status ) {\n\ttriggers_are_enabled = status;\n}\n\nvoid append_trigger(trigger *t) {\n\ttrigger **p = &trigger_list;\n\twhile (*p != NULL) {\n\t\tp = &( (*p)->next );\n\t}\n\t*p = t;\n}\n\nstatic int read_triggerfile(const char *filename) {\n\tFILE *conf;\n\tsize_t len = 0;\n\tchar *line = NULL;\n\tssize_t read;\n\n\tif(!filename)\n\t\treturn 2;\n\n\tconf = fopen(filename, \"r\");\n\tif (conf == NULL) {\n\t\treturn 1;\n\t}\n\twhile ((read = getline(&line, &len, conf)) != -1) {\n\t\tchar *copy = strdup(line);\n\t\tif (!copy) {\n\t\t\tfprintf(stderr, \"Error allocating memory for trigger parsing!\\n\");\n\t\t\tbreak;\n\t\t}\n\t\ttrigger *t = parse_trigger(copy);\n\t\tif (t) {\n\t\t\tappend_trigger(t);\n\t\t} else if (strlen(copy) > 0) {\n\t\t\t/* perhaps it was just an empty line */\n\t\t\tfprintf(stderr, \"Unable to parse trigger line: %s\\n\", line);\n\t\t}\n\t\tfree(copy);\n\t}\n\tfclose(conf);\n\tconf=NULL;\n\tfree(line);\n\tline=NULL;\n\treturn 0;\n}\n\nstatic int accept_triggerfile(const struct dirent *entry) {\n\tconst char *suffix = \".conf\";\n\tconst char *name = entry->d_name;\n\tchar *end = strstr( name, suffix );\n\tif ( end && end[ strlen(suffix) ] == '\\0' ) {\n\t\treturn 1;\n\t} else {\n\t\treturn 0;\n\t}\n}\n\nint read_triggers(const char *path) {\n\t/* check whether filename is a directory */\n\tstruct stat sb;\n\tif (stat(path, &sb) == -1) {\n\t\tperror(\"stat\");\n\t\treturn 1;\n\t}\n\tif (S_ISDIR(sb.st_mode)) {\n\t\t/* dive into it */\n\t\tstruct dirent **namelist;\n\t\tint n;\n\t\tn = scandir(path, &namelist, accept_triggerfile, alphasort);\n\t\tif ( n < 0) {\n\t\t\tperror(\"scandir\");\n\t\t\treturn 1;\n\t\t} else {\n\t\t\twhile (n--) {\n\t\t\t\tstruct stat sf;\n\t\t\t\tchar *file = namelist[n]->d_name;\n\t\t\t\tchar *sep = \"/\";\n\t\t\t\tchar fpath[strlen(path)+strlen(sep)+strlen(file) + 1];\n\t\t\t\tstrcpy(fpath, path);\n\t\t\t\tstrcat(fpath, sep);\n\t\t\t\tstrcat(fpath, file);\n\t\t\t\tif (stat(fpath, &sf) == -1) {\n\t\t\t\t\tperror(\"stat\");\n\t\t\t\t}\n\t\t\t\tif (S_ISREG(sf.st_mode)) {\n\t\t\t\t\tread_triggerfile(fpath);\n\t\t\t\t}\n\t\t\t\tfree(namelist[n]);\n\t\t\t}\n\t\t\tfree(namelist);\n\t\t\treturn 0;\n\t\t}\n\t} else {\n\t\treturn read_triggerfile( path );\n\t}\n}\n\nstatic int devtag_equal(const char *d_tag, const char *t_tag) {\n\tif (strlen(t_tag) == 0) {\n\t\treturn 1;\n\t}\n\tif (strcmp(t_tag, d_tag) == 0) {\n\t\treturn 1;\n\t}\n\treturn 0;\n}\n\nstatic int mods_equal(keystate_holder ksh, trigger_modifier tm, int ignore_key) {\n\tint n = 0;\n\twhile ( n < TRIGGER_MODIFIERS_MAX ) {\n\t\tint code = tm[n]; /* this key must be pressed */\n\t\tif (code < 0) {\n\t\t\tbreak;\n\t\t} else if (ksh[code] <= 0) {\n\t\t\treturn 0;\n\t\t}\n\t\tn++;\n\t}\n\t/* Now n is equal to the number of modifiers needed\n\t * we can check whether any additional keys are pressed\n\t * by counting the number of pressed keys instead of having\n\t * to cross-examine every key against the modifier list\n\t */\n\tint x;\n\tfor (x=0; x<=KEY_MAX; x++) {\n\t\tif (x != ignore_key && ksh[x] > 0) {\n\t\t\tn--;\n\t\t}\n\t}\n\t/* if n is zero, we have the exact number of needed modifiers pressed */\n\treturn (n == 0);\n}\n\nstatic int correct_mode( const char *tmode ) {\n\t/* not mode specified, valid in every mode */\n\treturn (tmode == NULL) || (strcmp( get_trigger_mode(), tmode ) == 0);\n}\n\nvoid run_triggers(int type, int code, int value, keystate_holder ksh, device *dev) {\n\tif (triggers_are_enabled == 0) {\n\t\treturn;\n\t}\n\tif (dev && dev->tag) {\n\t}\n\ttrigger *et = trigger_list;\n\twhile (et != NULL) {\n\t\tif ( type == et->type &&\n\t\t code == et->code &&\n\t\t value == et->value &&\n\t\t et->action &&\n\t\t correct_mode( et->mode ) &&\n\t\t devtag_equal(&(dev->tag[0]), &(et->devtag[0])) &&\n\t\t mods_equal(ksh, et->modifiers, (type==EV_KEY?code:-1) )) {\n\t\t\tfprintf(stderr, \"Executing trigger action: %s\\n\", et->action);\n\t\t\t/* switch trigger mode or execute program? */\n\t\t\tif (et->action[0] == '@') {\n\t\t\t\tchange_trigger_mode( &(et->action)[1] );\n\t\t\t\t/* we now stop checking for additional triggers\n\t\t\t\t * to avoid changing back to the original mode\n\t\t\t\t */\n\t\t\t\tbreak;\n\t\t\t} else if (et->action[0] == '<' ) {\n\t\t\t\tchar *keyname = &(et->action[1]);\n\t\t\t\tfprintf(stderr, \"Sending event: %s\\n\", keyname);\n\t\t\t\tint type = lookup_event_type( keyname );\n\t\t\t\tint code = lookup_event_code( keyname );\n\t\t\t\tif (type && code) {\n\t\t\t\t\tsend_event( type, code, 1 );\n\t\t\t\t\tsend_event( type, code, 0 );\n\t\t\t\t\tsend_event( EV_SYN, 0, 0 );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tint pid = fork();\n\t\t\t\tif (pid == 0 ) {\n\t\t\t\t\t/* adjust environment */\n\t\t\t\t\tsetenv( \"TH_DEVICE\", dev->devname, 1 );\n\t\t\t\t\tsetenv( \"TH_KEYSTATE\", get_keystate(ksh), 1 );\n\t\t\t\t\tconst char *en = lookup_event_name_i( et->type, et->code );\n\t\t\t\t\tsetenv( \"TH_EVENT\", en, 1 );\n\t\t\t\t\tchar ev[8];\n\t\t\t\t\tsprintf( &(ev[0]), \"%d\", et->value );\n\t\t\t\t\tsetenv( \"TH_VALUE\", &(ev[0]), 1 );\n\t\t\t\t\t/* default SIGCHLD is not automatically\n\t\t\t\t\t restored and most applications would\n\t\t\t\t\t fail if this signal is ignored */\n\t\t\t\t\tsignal(SIGCHLD, SIG_DFL);\n\t\t\t\t\tsystem(et->action);\n\t\t\t\t\texit(0);\n\t\t\t\t} else if (pid < 0) {\n\t\t\t\t\tfprintf(stderr, \"Unable to fork!\\n\");\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tet = et->next;\n\t}\n}\n\nint count_triggers( trigger **list ) {\n\tint n = 0;\n\tif(!list)\n\t\treturn 0;\n\ttrigger *p = *list;\n\twhile ( p != NULL ) {\n\t\tn++;\n\t\tp = p->next;\n\t}\n\treturn n;\n}\n\nvoid clear_triggers() {\n\ttrigger *p = trigger_list;\n\twhile (p != NULL) {\n\t\ttrigger *next = p->next;\n\t\tfree(p->action);\n\t\tfree(p->mode);\n\t\tfree(p);\n\t\tp = next;\n\t}\n\ttrigger_list = NULL;\n}\n" }, { "path": "trigger.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \"devtag.h\"\n#define TRIGGER_MODIFIERS_MAX 5\n\ntypedef int trigger_modifier[TRIGGER_MODIFIERS_MAX];\n\ntypedef struct trigger {\n\tint type;\n\tint code;\n\tint value;\n\ttrigger_modifier modifiers;\n\tchar *mode;\n\tchar devtag[TH_DEVICE_TAG_LENGTH];\n\tchar *action;\n\tstruct trigger *next;\n} trigger;\n\ntrigger* parse_trigger(char* line);\nvoid append_trigger(trigger *t);\nint read_triggers(const char *filename);\nvoid run_triggers(int type, int code, int value, keystate_holder ksh, device *dev);\nvoid clear_triggers();\n\nvoid triggers_enabled( int status );\n\nvoid change_trigger_mode( const char *tmode );\n" }, { "path": "triggerhappy.conf.examples", "content": "# adjust volume\nKEY_VOLUMEUP\t\t\t1\t/usr/bin/amixer set Master 5%+\nKEY_VOLUMEUP+KEY_LEFTSHIFT\t1\t/usr/bin/amixer set Master 15%+ # with modifier\nKEY_VOLUMEUP\t\t\t2\t/usr/bin/amixer set Master 5%+ # even while holding\nKEY_VOLUMEDOWN\t\t\t1\t/usr/bin/amixer set Master 5%-\nKEY_VOLUMEDOWN+KEY_LEFTSHIFT\t1\t/usr/bin/amixer set Master 15%-\nKEY_VOLUMEDOWN\t\t\t2\t/usr/bin/amixer set Master 5%-\n# only trigger commands when in \"media\" mode\nKEY_KPPLUS@media\t\t1\t/usr/bin/mpc next # next song\nKEY_KPMINUS@media\t\t1\t/usr/bin/mpc prev # next song\n# only used if in the nameless default mode\nKEY_F12@\t\t\t1\t@media # switch to media mode\nKEY_F12@media\t\t\t1\t@ # switch back to nameless default mode\nKEY_KPASTERISK\t\t\t1\tKEY_F11\t\t\t1\tid\n" }, { "path": "triggerparser.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \"eventnames.h\"\n#include \"keystate.h\"\n#include \"devices.h\"\n#include \"trigger.h\"\n#include \"triggerparser.h\"\n\nstatic int parse_evdef(char *evdef, trigger *t) {\n\t/* first we split the mode (if present) */\n\tchar *mode = strchr(evdef, '@');\n\tif (mode) {\n\t\t*mode = '\\0';\n\t\tmode++;\n\t}\n\t/* place a copy of the mode string or NULL in the struct */\n\tt->mode = (mode ? strdup(mode) : NULL);\n\n\t/* The evdef event now might still contain a device tag enclosed in < > */\n\tt->devtag[0] = '\\0';\n\tchar *tmp = strchr(evdef, '>');\n\tif (tmp && evdef[0] == '<') {\n\t\t*tmp = '\\0';\n\t\tstrncpy(t->devtag, &evdef[1], TH_DEVICE_TAG_LENGTH);\n\t\tt->devtag[TH_DEVICE_TAG_LENGTH-1] = '\\0';\n\t\tevdef = tmp+1; /* point evdef to the beginning of the event */\n\t}\n\n\t/* now we can start to separate the triggering event from the modifiers */\n\tchar *sptr = NULL;\n\tchar *s_trigger = strtok_r(evdef, \"+\", &sptr);\n\n\tint n = 0;\n\twhile (n < TRIGGER_MODIFIERS_MAX) {\n\t\tchar *s_mod = strtok_r(NULL, \"+\", &sptr);\n\t\tif (s_mod == NULL) {\n\t\t\tt->modifiers[n] = -1;\n\t\t} else {\n\t\t\tint type = lookup_event_type(s_mod);\n\t\t\tint c = lookup_event_code(s_mod);\n\t\t\tif (type == EV_KEY && c >= 0) {\n\t\t\t\tt->modifiers[n] = c;\n\t\t\t} else {\n\t\t\t\t/* we cannot process this key code */\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t}\n\t\tn++;\n\t}\n\n\tint type = lookup_event_type( s_trigger );\n\tint code = lookup_event_code( s_trigger );\n\n\tif (type < 0 || code < 0) {\n\t\treturn 1;\n\t}\n\tt->type = type;\n\tt->code = code;\n\n\treturn 0;\n}\n\ntrigger* parse_trigger(char* line) {\n\t/* ignore everything behind # */\n\tchar *comment = strchr(line, '#');\n\tif ( comment != NULL ) {\n\t\t*comment = '\\0';\n\t}\n\n\t/* no we must have at least 3 tokens left */\n\tchar *delim = \" \\t\\n\";\n\tchar *sptr = NULL;\n\t/* event definition including modifiers and daemon mode */\n\tchar *s_evdef = strtok_r(line, delim, &sptr);\n\t/* value of the event (0, 1, 2) */\n\tchar *s_value = strtok_r(NULL, delim, &sptr);\n\t/* the action that should take place filling the rest of the line */\n\tchar *s_action = strtok_r(NULL, \"\", &sptr);\n\n\t/* if we do not have 3 tokens, we can abort */\n\tif (! (s_evdef && s_value && s_action)) {\n\t\treturn NULL;\n\t}\n\ttrigger *t = malloc( sizeof(trigger) );\n\tif (! t) {\n\t\tfprintf(stderr, \"Unable to allocate memory for trigger definition!\\n\");\n\t\treturn NULL;\n\t}\n\tmemset( t, 0, sizeof(*t) );\n\tt->next = NULL;\n\n\tt->value = atoi(s_value);\n\n\tint err = parse_evdef( s_evdef, t );\n\tif (!err) {\n\t\t/* remove trailing whitespaces from the end of the command line */\n\t\tchar *end = s_action + strlen(s_action) - 1;\n\t\twhile (end >= s_action && (isspace(*end) || *end == '\\n')) {\n\t\t\tend --;\n\t\t}\n\t\t*(end+1) = '\\0';\n\t\t/* remove leading whitespaces as well */\n\t\twhile (isspace(*s_action)) {\n\t\t\ts_action++;\n\t\t}\n\t\t/* now copy the strings (mode is already copied in parse_evdef) */\n\t\tt->action = strdup(s_action);\n\t} else {\n\t\t/* free the allocated memory */\n\t\tfree(t->mode);\n\t\tfree(t->action);\n\t\tfree(t);\n\t\tt = NULL;\n\t}\n\treturn t;\n}\n\n" }, { "path": "triggerparser.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\ntrigger* parse_trigger(char* line);\n" }, { "path": "udev/triggerhappy-udev.rules", "content": "## open new input devices and pass the file descriptor to the triggerhappy daemon\nACTION==\"add\", SUBSYSTEM==\"input\", \\\n\tATTRS{name}!=\"triggerhappy\", \\\n\tRUN+=\"/usr/sbin/th-cmd --socket /var/run/thd.socket --passfd --udev\"\n## add device exclusively\n#ACTION==\"add\", SUBSYSTEM==\"input\", \\\n#\tATTRS{name}==\"Nintendo Wiimote\", \\\n#\tRUN+=\"/usr/sbin/th-cmd --socket /var/run/thd.socket --passfd --udev --grab\"\n" }, { "path": "uinput.c", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n\n#include \"uinput.h\"\n\nstatic int uinput_fd = -1;\n\nint open_uinput(const char *path) {\n\tclose_uinput();\n\tstruct uinput_user_dev device;\n\tuinput_fd = open(path, O_WRONLY);\n\tif (!uinput_fd) {\n\t\treturn -1;\n\t}\n\tmemset(&device, 0, sizeof device);\n\tstrcpy(device.name,\"triggerhappy\");\n\tdevice.id.bustype = BUS_USB;\n\tdevice.id.vendor = 1;\n\tdevice.id.product = 1;\n\tdevice.id.version = 1;\n\tif (write(uinput_fd,&device,sizeof(device)) != sizeof(device)) {\n\t\tclose_uinput();\n\t\treturn -1;\n\t}\n\n\tif (ioctl(uinput_fd,UI_SET_EVBIT,EV_KEY) < 0) {\n\t\tclose_uinput();\n\t\treturn -1;\n\t}\n\n\t/* we can generate _any_ key event */\n\tint i;\n\tfor (i=0; i= 0) {\n\t\tclose(uinput_fd);\n\t\tuinput_fd = -1;\n\t}\n}\n\nint send_event(const int type, const int code, const int value) {\n\tif (!uinput_fd) {\n\t\treturn -1;\n\t}\n\tstruct input_event event;\n\tmemset(&event, 0, sizeof event);\n\tevent.type = type;\n\tevent.code = code;\n\tevent.value = value;\n\tif (write(uinput_fd, &event, sizeof(event)) != sizeof(event)) {\n\t\tfprintf(stderr, \"Error on send_event\\n\");\n\t\treturn -1;\n\t}\n\treturn 0;\n}\n\n" }, { "path": "uinput.h", "content": "/* Copyright 2010 Stefan Tomanek \n * You have permission to copy, modify, and redistribute under the\n * terms of the GPLv3 or any later version.\n * For full license terms, see COPYING.\n */\n\nint open_uinput(const char *path);\nvoid close_uinput();\nint send_event(const int type, const int code, const int value);\n" }, { "path": "version.inc", "content": "0.5.0\n" } ]