SIMPLE SOLUTIONS

EXPLAIN_SETREGID_OR_DIE - reference manual online

Set real and/or effective group ID and report errors.

Chapter
explain_setregid_or_die(3)           Library Functions Manual          explain_setregid_or_die(3)

NAME explain_setregid_or_die - set real and/or effective group ID and report errors
SYNOPSIS #include <libexplain/setregid.h> void explain_setregid_or_die(gid_t rgid, gid_t egid); int explain_setregid_on_error(gid_t rgid, gid_t egid);
DESCRIPTION The explain_setregid_or_die function is used to call the setregid(2) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_setregid(3) func‐ tion, and then the process terminates by calling exit(EXIT_FAILURE). The explain_setregid_on_error function is used to call the setregid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setregid(3) function, but still returns to the caller. rgid The rgid, exactly as to be passed to the setregid(2) system call. egid The egid, exactly as to be passed to the setregid(2) system call.
RETURN VALUE The explain_setregid_or_die function only returns on success, see setregid(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_setregid_on_error function always returns the value return by the wrapped setregid(2) system call.
EXAMPLE The explain_setregid_or_die function is intended to be used in a fashion similar to the following example: explain_setregid_or_die(rgid, egid);
SEE ALSO setregid(2) set real and/or effective group ID explain_setregid(3) explain setregid(2) errors exit(2) terminate the calling process
explain_setregid_or_die(3)
This manual Reference Other manuals
explain_setregid_or_die(3) referred by explain(3) | explain_setregid(3)
refer to _exit(2) | explain_setregid(3) | setreuid(2)