libexplain  1.4.D001
Functions
libexplain/buffer/errno/strndup.h File Reference
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions

void explain_buffer_errno_strndup (explain_string_buffer_t *sb, int errnum, const char *data, size_t data_size)

Function Documentation

void explain_buffer_errno_strndup ( explain_string_buffer_t sb,
int  errnum,
const char *  data,
size_t  data_size 
)

The explain_buffer_errno_strndup function is used to obtain an explanation of an error returned by the strndup(3) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
dataThe original data, exactly as passed to the strndup(3) system call.
data_sizeThe original data_size, exactly as passed to the strndup(3) system call.

Definition at line 57 of file strndup.c.