#ifndef foodexechfoo
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#define foodexechfoo
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/***
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This file is part of libdaemon.
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Copyright 2003-2008 Lennart Poettering
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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***/
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#include <stdarg.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \file
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*
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* Contains a robust API for running sub processes with STDOUT and
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* STDERR redirected to syslog
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*/
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/** This variable is defined to 1 iff daemon_exec() is supported.
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* @since 0.4
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* @see daemon_exec() */
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#define DAEMON_EXEC_AVAILABLE 1
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#if defined(__GNUC__) && ! defined(DAEMON_GCC_SENTINEL)
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#define DAEMON_GCC_SENTINEL __attribute__ ((sentinel))
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#else
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/** A macro for making use of GCCs printf compilation warnings */
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#define DAEMON_GCC_SENTINEL
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#endif
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/** Run the specified executable with the specified arguments in the
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* specified directory and return the return value of the program in
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* the specified pointer. The calling process is blocked until the
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* child finishes and all child output (either STDOUT or STDIN) has
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* been written to syslog. Running this function requires that
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* daemon_signal() has been called with SIGCHLD as argument.
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*
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* @param dir Working directory for the process.
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* @param ret A pointer to an integer to write the return value of the program to.
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* @param prog The path to the executable
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* @param ... The arguments to be passed to the program, followed by a (char *) NULL
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* @return Nonzero on failure, zero on success
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* @since 0.4
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* @see DAEMON_EXEC_AVAILABLE
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*/
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int daemon_exec(const char *dir, int *ret, const char *prog, ...) DAEMON_GCC_SENTINEL;
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/** This variable is defined to 1 iff daemon_execv() is supported.
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* @since 0.11
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* @see daemon_execv() */
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#define DAEMON_EXECV_AVAILABLE 1
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/** The same as daemon_exec, but without variadic arguments
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* @since 0.11
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* @see DAEMON_EXECV_AVAILABLE */
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int daemon_execv(const char *dir, int *ret, const char *prog, va_list ap);
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#ifdef __cplusplus
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}
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#endif
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#endif
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