SIMPLE SOLUTIONS

EXPLAIN_SETUID_OR_DIE(3) - man page online | library functions

Set user identity and report errors.

Chapter
explain_setuid_or_die(3)             Library Functions Manual            explain_setuid_or_die(3)

NAME explain_setuid_or_die - set user identity and report errors
SYNOPSIS #include <libexplain/setuid.h> void explain_setuid_or_die(int uid); int explain_setuid_on_error(int uid);
DESCRIPTION The explain_setuid_or_die function is used to call the setuid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setuid(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_setuid_on_error function is used to call the setuid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setuid(3) function, but still returns to the caller. uid The uid, exactly as to be passed to the setuid(2) system call.
RETURN VALUE The explain_setuid_or_die function only returns on success, see setuid(2) for more infor‐ mation. On failure, prints an explanation and exits, it does not return. The explain_setuid_on_error function always returns the value return by the wrapped setuid(2) system call.
EXAMPLE The explain_setuid_or_die function is intended to be used in a fashion similar to the fol‐ lowing example: explain_setuid_or_die(uid);
SEE ALSO setuid(2) set user identity explain_setuid(3) explain setuid(2) errors exit(2) terminate the calling process
explain_setuid_or_die(3)
This manual Reference Other manuals
explain_setuid_or_die(3) referred by explain(3) | explain_setuid(3)
refer to _exit(2) | explain_setuid(3) | setuid(2)