| explain_setresgid_or_die(3) | Library Functions Manual | explain_setresgid_or_die(3) |
explain_setresgid_or_die - set r/e/s group ID and report errors
#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);
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.
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.
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);
libexplain version 1.4
Copyright (C) 2012 Peter Miller