SIMPLE SOLUTIONS

EXPLAIN_GETRESUID_OR_DIE - reference manual online

Get r/e/s user IDs and report errors.

Chapter
explain_getresuid_or_die(3)          Library Functions Manual         explain_getresuid_or_die(3)

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