explain_strndup_or_die(3) Library Functions Manual explain_strndup_or_die(3)

explain_strndup_or_die - duplicate a string and report errors

#include <libexplain/strndup.h>

char *explain_strndup_or_die(const char *data, size_t data_size);
char *explain_strndup_on_error(const char *data, size_t data_size);

The explain_strndup_or_die function is used to call the strndup(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strndup(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_strndup_on_error function is used to call the strndup(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strndup(3) function, but still returns to the caller.

The data, exactly as to be passed to the strndup(3) system call.
The data_size, exactly as to be passed to the strndup(3) system call.

The explain_strndup_or_die function only returns on success, see strndup(3) for more information. On failure, prints an explanation and exits, it does not return.

The explain_strndup_on_error function always returns the value return by the wrapped strndup(3) system call.

The explain_strndup_or_die function is intended to be used in a fashion similar to the following example:

char *result = explain_strndup_or_die(data, data_size);

duplicate a string
explain strndup(3) errors
terminate the calling process

libexplain version 1.4
Copyright (C) 2009 Peter Miller