SIMPLE SOLUTIONS

EXPLAIN_GETHOSTBYNAME_OR_DIE - reference manual online

Get host address by host name and report errors.

Chapter
explain_gethostbyname_or_die(3)      Library Functions Manual     explain_gethostbyname_or_die(3)

NAME explain_gethostbyname_or_die - get host address by host name and report errors
SYNOPSIS #include <libexplain/gethostbyname.h> struct hostent *explain_gethostbyname_or_die(const char *name); struct hostent *explain_gethostbyname_on_error(const char *name);
DESCRIPTION The explain_gethostbyname_or_die function is used to call the gethostbyname(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_geth‐ ostbyname(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_gethostbyname_on_error function is used to call the gethostbyname(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_geth‐ ostbyname(3) function, but still returns to the caller. name The name, exactly as to be passed to the gethostbyname(3) system call.
RETURN VALUE The explain_gethostbyname_or_die function only returns on success, see gethostbyname(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_gethostbyname_on_error function always returns the value return by the wrapped gethostbyname(3) system call.
EXAMPLE The explain_gethostbyname_or_die function is intended to be used in a fashion similar to the following example: struct hostent *result = explain_gethostbyname_or_die(name);
SEE ALSO gethostbyname(3) get host address given host name explain_gethostbyname(3) explain gethostbyname(3) errors exit(2) terminate the calling process
explain_gethostbyname_or_die(3)
This manual Reference Other manuals
explain_gethostbyname_or_die(3) referred by explain(3) | explain_gethostbyname(3)
refer to _exit(2) | explain_gethostbyname(3) | gethostbyname(3)