explain_strndup_or_die man page

explain_strndup_or_die — duplicate a string and report errors

Synopsis

#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);

Description

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.

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

Return Value

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.

Example

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);

See Also

strndup(3)
duplicate a string
explain_strndup(3)
explain strndup(3) errors
exit(2)
terminate the calling process

Referenced By

explain(3), explain_strndup(3).