Retro68/gcc/newlib/libc/string/xpg_strerror_r.c
2012-03-27 01:51:53 +02:00

27 lines
513 B
C

/* POSIX variant of strerror_r. */
#undef __STRICT_ANSI__
#include <errno.h>
#include <string.h>
int
_DEFUN (__xpg_strerror_r, (errnum, buffer, n),
int errnum _AND
char *buffer _AND
size_t n)
{
char *error;
int result = 0;
if (!n)
return ERANGE;
error = _strerror_r (_REENT, errnum, 1, &result);
if (strlen (error) >= n)
{
memcpy (buffer, error, n - 1);
buffer[n - 1] = '\0';
return ERANGE;
}
strcpy (buffer, error);
return (result || *error) ? result : EINVAL;
}