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/*
* zebra string function
*
* these functions are just very basic wrappers around exiting ones and
* do not offer the protection that might be expected against buffer
* overruns etc
*/
#include <zebra.h>
#ifndef HAVE_SNPRINTF
/*
* snprint() is a real basic wrapper around the standard sprintf()
* without any bounds checking
*/
int
snprintf(char *str, size_t size, const char *format, ...)
{
va_list args;
va_start (args, format);
return vsprintf (str, format, args);
}
#endif
#ifndef HAVE_STRLCPY
/*
* strlcpy is a safer version of strncpy(), checking the total
* size of the buffer
*/
size_t
strlcpy(char *dst, const char *src, size_t size)
{
strncpy(dst, src, size);
return (strlen(dst));
}
#endif
#ifndef HAVE_STRLCAT
/*
* strlcat is a safer version of strncat(), checking the total
* size of the buffer
*/
size_t
strlcat(char *dst, const char *src, size_t size)
{
/* strncpy(dst, src, size - strlen(dst)); */
/* I've just added below code only for workable under Linux. So
need rewrite -- Kunihiro. */
if (strlen (dst) + strlen (src) >= size)
return -1;
strcat (dst, src);
return (strlen(dst));
}
#endif
#ifndef HAVE_STRNLEN
size_t
strnlen(const char *s, size_t maxlen)
{
const char *p;
return (p = (const char *)memchr(s, '\0', maxlen)) ? (size_t)(p-s) : maxlen;
}
#endif
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