SIMPLE SOLUTIONS

EXPLAIN_SETREUID_OR_DIE - reference manual online

Set the real and effective user ID and report errors.

Chapter
explain_setreuid_or_die(3)           Library Functions Manual          explain_setreuid_or_die(3)

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