SIMPLE SOLUTIONS

EXPLAIN_SETRESGID_OR_DIE - reference manual online

Set r/e/s group ID and report errors.

Chapter
explain_setresgid_or_die(3)          Library Functions Manual         explain_setresgid_or_die(3)

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