SIMPLE SOLUTIONS

EXPLAIN_GETGRENT_OR_DIE - reference manual online

Get group file entry and report errors.

Chapter
explain_getgrent_or_die(3)           Library Functions Manual          explain_getgrent_or_die(3)

NAME explain_getgrent_or_die - get group file entry and report errors
SYNOPSIS #include <libexplain/getgrent.h> struct group *explain_getgrent_or_die(void); struct group *explain_getgrent_on_error(void);
DESCRIPTION The explain_getgrent_or_die function is used to call the getgrent(3) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_getgrent(3) func‐ tion, and then the process terminates by calling exit(EXIT_FAILURE). The explain_getgrent_on_error function is used to call the getgrent(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_getgrent(3) function, but still returns to the caller.
RETURN VALUE The explain_getgrent_or_die function only returns on success, see getgrent(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_getgrent_on_error function always returns the value return by the wrapped get‐ grent(3) system call.
EXAMPLE The explain_getgrent_or_die function is intended to be used in a fashion similar to the following example: struct group *result = explain_getgrent_or_die();
SEE ALSO getgrent(3) get group file entry explain_getgrent(3) explain getgrent(3) errors exit(2) terminate the calling process
explain_getgrent_or_die(3)
This manual Reference Other manuals
explain_getgrent_or_die(3) referred by explain(3) | explain_getgrent(3)
refer to _exit(2) | explain_getgrent(3) | getgrent(3)