dexec.h(3) libdaemon dexec.h(3)
NAME
dexec.h - Contains a robust API for running sub processes with STDOUT
and STDERR redirected to syslog.
SYNOPSIS
#include <stdarg.h>
Macros
#define DAEMON_EXEC_AVAILABLE 1
This variable is defined to 1 iff daemon_exec() is supported.
#define DAEMON_GCC_SENTINEL
A macro for making use of GCCs printf compilation warnings.
#define DAEMON_EXECV_AVAILABLE 1
This variable is defined to 1 iff daemon_execv() is supported.
Functions
int daemon_exec (const char *dir, int *ret, const char *prog,...)
DAEMON_GCC_SENTINEL
Run the specified executable with the specified arguments in the
specified directory and return the return value of the program in
the specified pointer.
int daemon_execv (const char *dir, int *ret, const char *prog, va_list
ap)
The same as daemon_exec, but without variadic arguments.
Detailed Description
Contains a robust API for running sub processes with STDOUT and STDERR
redirected to syslog.
Definition in file dexec.h.
Macro Definition Documentation
#define DAEMON_EXEC_AVAILABLE 1
This variable is defined to 1 iff daemon_exec() is supported.
Since
0.4
See also
daemon_exec()
Definition at line 39 of file dexec.h.
#define DAEMON_EXECV_AVAILABLE 1
This variable is defined to 1 iff daemon_execv() is supported.
Since
0.11
See also
daemon_execv()
Definition at line 68 of file dexec.h.
#define DAEMON_GCC_SENTINEL
A macro for making use of GCCs printf compilation warnings.
Definition at line 45 of file dexec.h.
Function Documentation
int daemon_exec (const char * dir, int * ret, const char * prog, ...)
Run the specified executable with the specified arguments in the
specified directory and return the return value of the program in the
specified pointer. The calling process is blocked until the child
finishes and all child output (either STDOUT or STDIN) has been written
to syslog. Running this function requires that daemon_signal() has been
called with SIGCHLD as argument.
Parameters
dir Working directory for the process.
ret A pointer to an integer to write the return value of the program
to.
prog The path to the executable
... The arguments to be passed to the program, followed by a (char
*) NULL
Returns
Nonzero on failure, zero on success
Since
0.4
See also
DAEMON_EXEC_AVAILABLE
Examples
testd.c.
int daemon_execv (const char * dir, int * ret, const char * prog, va_list
ap)
The same as daemon_exec, but without variadic arguments.
Since
0.11
See also
DAEMON_EXECV_AVAILABLE
Author
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Version 0.14 Mon Dec 21 2020 dexec.h(3)
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