From 19d68f7dd67dea1e5e11d5014766157d45e5ebf4 Mon Sep 17 00:00:00 2001 From: Mathieu Lirzin Date: Mon, 18 Jul 2016 16:30:11 +0200 Subject: build: Rename 'mcron.c' to 'wrapper.c'. * src/mcron.c: Rename to ... * src/wrapper.c: ... this. * Makefile.am (mcron_SOURCES, cron_SOURCES, crontab_SOURCES): Adapt to it. * configure.ac (AC_CONFIG_SRCDIR): Likewise. --- src/mcron.c | 86 ----------------------------------------------------------- src/wrapper.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 85 insertions(+), 86 deletions(-) delete mode 100644 src/mcron.c create mode 100644 src/wrapper.c (limited to 'src') diff --git a/src/mcron.c b/src/mcron.c deleted file mode 100644 index a52c073..0000000 --- a/src/mcron.c +++ /dev/null @@ -1,86 +0,0 @@ -/* mcron - run jobs at scheduled times - - Copyright (C) 2015, 2016 Mathieu Lirzin - Copyright (C) 2003, 2014 Dale Mellor - - This file is part of GNU Mcron. - - GNU Mcron is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - GNU Mcron is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GNU Mcron. If not, see . */ - -/* This C code represents a thin wrapper around the Guile code of Mcron. It - is needed because the crontab personality requires SUID which is not - permitted for executable scripts. */ - -#include -#include -#include -#include - -/* Forward declarations. */ -static void inner_main (void *closure, int argc, char **argv); -static void react_to_terminal_signal (int sig); -static SCM set_cron_signals (void); - -int -main (int argc, char **argv) -{ - scm_boot_guile (argc, argv, inner_main, 0); - - return EXIT_SUCCESS; -} - -/* Launch the Mcron Guile main program. */ -static void -inner_main (void *closure, int argc, char **argv) -{ - /* Set Guile load paths to ensure that Mcron modules will be found. */ - if (getenv ("MCRON_UNINSTALLED") == NULL) - { - scm_c_eval_string ("(set! %load-path (cons \"" - PACKAGE_LOAD_PATH "\" %load-path))"); - scm_c_eval_string ("(set! %load-compiled-path (cons \"" - PACKAGE_LOAD_PATH "\" %load-compiled-path))"); - } - scm_set_current_module (scm_c_resolve_module ("mcron scripts " PROGRAM)); - /* Register set_cron_signals to be called from Guile. */ - scm_c_define_gsubr ("c-set-cron-signals", 0, 0, 0, set_cron_signals); - scm_c_eval_string ("(main)"); -} - -/* Set up all the signal handlers as required by the cron personality. This - is necessary to perform the signal processing in C because the sigaction - function won't work when called from Guile. */ -static SCM -set_cron_signals () -{ - static struct sigaction sa; - - memset (&sa, 0, sizeof (sa)); - sa.sa_handler = react_to_terminal_signal; - sigaction (SIGTERM, &sa, 0); - sigaction (SIGINT, &sa, 0); - sigaction (SIGQUIT, &sa, 0); - sigaction (SIGHUP, &sa, 0); - - return SCM_BOOL_T; -} - -/* Handle signal SIG and exit. All signals that mcron handles will produce - the same behavior so we don't need to use SIG in the implementation. */ -static void -react_to_terminal_signal (int sig) -{ - scm_c_eval_string ("(delete-run-file)"); - exit (EXIT_FAILURE); -} diff --git a/src/wrapper.c b/src/wrapper.c new file mode 100644 index 0000000..a5b46db --- /dev/null +++ b/src/wrapper.c @@ -0,0 +1,85 @@ +/* wrapper.c -- C code booting Guile + Copyright (C) 2003, 2014 Dale Mellor + Copyright (C) 2015, 2016 Mathieu Lirzin + + This file is part of GNU Mcron. + + GNU Mcron is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + GNU Mcron is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNU Mcron. If not, see . */ + +/* This C code represents a thin wrapper around the Guile code of Mcron. It + is needed because the crontab personality requires SUID which is not + permitted for executable scripts. */ + +#include +#include +#include +#include + +/* Forward declarations. */ +static void inner_main (void *closure, int argc, char **argv); +static void react_to_terminal_signal (int sig); +static SCM set_cron_signals (void); + +int +main (int argc, char **argv) +{ + scm_boot_guile (argc, argv, inner_main, 0); + + return EXIT_SUCCESS; +} + +/* Launch the Mcron Guile main program. */ +static void +inner_main (void *closure, int argc, char **argv) +{ + /* Set Guile load paths to ensure that Mcron modules will be found. */ + if (getenv ("MCRON_UNINSTALLED") == NULL) + { + scm_c_eval_string ("(set! %load-path (cons \"" + PACKAGE_LOAD_PATH "\" %load-path))"); + scm_c_eval_string ("(set! %load-compiled-path (cons \"" + PACKAGE_LOAD_PATH "\" %load-compiled-path))"); + } + scm_set_current_module (scm_c_resolve_module ("mcron scripts " PROGRAM)); + /* Register set_cron_signals to be called from Guile. */ + scm_c_define_gsubr ("c-set-cron-signals", 0, 0, 0, set_cron_signals); + scm_c_eval_string ("(main)"); +} + +/* Set up all the signal handlers as required by the cron personality. This + is necessary to perform the signal processing in C because the sigaction + function won't work when called from Guile. */ +static SCM +set_cron_signals () +{ + static struct sigaction sa; + + memset (&sa, 0, sizeof (sa)); + sa.sa_handler = react_to_terminal_signal; + sigaction (SIGTERM, &sa, 0); + sigaction (SIGINT, &sa, 0); + sigaction (SIGQUIT, &sa, 0); + sigaction (SIGHUP, &sa, 0); + + return SCM_BOOL_T; +} + +/* Handle signal SIG and exit. All signals that mcron handles will produce + the same behavior so we don't need to use SIG in the implementation. */ +static void +react_to_terminal_signal (int sig) +{ + scm_c_eval_string ("(delete-run-file)"); + exit (EXIT_FAILURE); +} -- cgit v1.2.3