diff options
Diffstat (limited to 'lib/inet_ntop.c')
| -rw-r--r-- | lib/inet_ntop.c | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/lib/inet_ntop.c b/lib/inet_ntop.c index 9501bfa6b..26867f4d2 100644 --- a/lib/inet_ntop.c +++ b/lib/inet_ntop.c @@ -42,12 +42,6 @@ #include "inet_ntop.h" -#if defined(HAVE_INET_NTOA_R) && !defined(HAVE_INET_NTOA_R_DECL) -/* this platform has a inet_ntoa_r() function, but no proto declared anywhere - so we include our own proto to make compilers happy */ -#include "inet_ntoa_r.h" -#endif - #define IN6ADDRSZ 16 #define INADDRSZ 4 #define INT16SZ 2 @@ -62,30 +56,26 @@ */ static char *inet_ntop4 (const unsigned char *src, char *dst, size_t size) { -#if defined(HAVE_INET_NTOA_R_2_ARGS) - const char *ptr; - DEBUGASSERT(size >= 16); - ptr = inet_ntoa_r(*(struct in_addr*)src, dst); - return (char *)memmove(dst, ptr, strlen(ptr)+1); - -#elif defined(HAVE_INET_NTOA_R) + char tmp[sizeof "255.255.255.255"]; + size_t len; -#if defined(HAVE_INT_INET_NTOA_R) - return inet_ntoa_r(*(struct in_addr*)src, dst, size)? NULL: dst; -#else - return inet_ntoa_r(*(struct in_addr*)src, dst, size); -#endif + DEBUGASSERT(size >= 16); -#else - const char *addr = inet_ntoa(*(struct in_addr*)src); + tmp[0] = '\0'; + (void)snprintf(tmp, sizeof(tmp), "%d.%d.%d.%d", + ((int)((unsigned char)src[0])) & 0xff, + ((int)((unsigned char)src[1])) & 0xff, + ((int)((unsigned char)src[2])) & 0xff, + ((int)((unsigned char)src[3])) & 0xff); - if(strlen(addr) >= size) + len = strlen(tmp); + if(len == 0 || len >= size) { SET_ERRNO(ENOSPC); return (NULL); } - return strcpy(dst, addr); -#endif + strcpy(dst, tmp); + return dst; } #ifdef ENABLE_IPV6 @@ -192,7 +182,8 @@ static char *inet_ntop6 (const unsigned char *src, char *dst, size_t size) SET_ERRNO(ENOSPC); return (NULL); } - return strcpy (dst, tmp); + strcpy(dst, tmp); + return dst; } #endif /* ENABLE_IPV6 */ |