libexplain/strndup_on_error.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/strndup.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
static size_t	strnlen (const char *s, size_t n)
static char *	strndup (const char *text, size_t text_size)
char *	explain_strndup_on_error (const char *data, size_t data_size)

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Function Documentation

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

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.

Parameters:

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.

Returns:

The value returned by the wrapped strndup(3) system call.

Example:

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

 char *result = explain_strndup_on_error(data, data_size);
 if (!result)
 {
     ...cope with error
     ...no need to print error message
 }

Definition at line 56 of file strndup_on_error.c.

static char* strndup	(	const char *	text,
		size_t	text_size
	)		[static]

Definition at line 38 of file strndup_on_error.c.

static size_t strnlen	(	const char *	s,
		size_t	n
	)		[static]

Definition at line 30 of file strndup_on_error.c.