diff options
Diffstat (limited to 'gl/inet_ntop.c')
| -rw-r--r-- | gl/inet_ntop.c | 92 |
1 files changed, 44 insertions, 48 deletions
diff --git a/gl/inet_ntop.c b/gl/inet_ntop.c index be091ff9..baaa23f8 100644 --- a/gl/inet_ntop.c +++ b/gl/inet_ntop.c @@ -1,6 +1,6 @@ /* inet_ntop.c -- convert IPv4 and IPv6 addresses from binary to text form - Copyright (C) 2005, 2006, 2008 Free Software Foundation, Inc. + Copyright (C) 2005-2006, 2008-2010 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -42,10 +42,6 @@ #include <string.h> #include <errno.h> -#ifndef EAFNOSUPPORT -# define EAFNOSUPPORT EINVAL -#endif - #define NS_IN6ADDRSZ 16 #define NS_INT16SZ 2 @@ -63,15 +59,15 @@ static const char *inet_ntop6 (const unsigned char *src, char *dst, socklen_t si /* char * * inet_ntop(af, src, dst, size) - * convert a network format address to presentation format. + * convert a network format address to presentation format. * return: - * pointer to presentation format address (`dst'), or NULL (see errno). + * pointer to presentation format address (`dst'), or NULL (see errno). * author: - * Paul Vixie, 1996. + * Paul Vixie, 1996. */ const char * inet_ntop (int af, const void *restrict src, - char *restrict dst, socklen_t cnt) + char *restrict dst, socklen_t cnt) { switch (af) { @@ -94,14 +90,14 @@ inet_ntop (int af, const void *restrict src, /* const char * * inet_ntop4(src, dst, size) - * format an IPv4 address + * format an IPv4 address * return: - * `dst' (as a const) + * `dst' (as a const) * notes: - * (1) uses no statics - * (2) takes a u_char* not an in_addr as input + * (1) uses no statics + * (2) takes a u_char* not an in_addr as input * author: - * Paul Vixie, 1996. + * Paul Vixie, 1996. */ static const char * inet_ntop4 (const unsigned char *src, char *dst, socklen_t size) @@ -126,9 +122,9 @@ inet_ntop4 (const unsigned char *src, char *dst, socklen_t size) /* const char * * inet_ntop6(src, dst, size) - * convert IPv6 binary address into presentation (printable) format + * convert IPv6 binary address into presentation (printable) format * author: - * Paul Vixie, 1996. + * Paul Vixie, 1996. */ static const char * inet_ntop6 (const unsigned char *src, char *dst, socklen_t size) @@ -161,26 +157,26 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size) for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { if (words[i] == 0) - { - if (cur.base == -1) - cur.base = i, cur.len = 1; - else - cur.len++; - } + { + if (cur.base == -1) + cur.base = i, cur.len = 1; + else + cur.len++; + } else - { - if (cur.base != -1) - { - if (best.base == -1 || cur.len > best.len) - best = cur; - cur.base = -1; - } - } + { + if (cur.base != -1) + { + if (best.base == -1 || cur.len > best.len) + best = cur; + cur.base = -1; + } + } } if (cur.base != -1) { if (best.base == -1 || cur.len > best.len) - best = cur; + best = cur; } if (best.base != -1 && best.len < 2) best.base = -1; @@ -193,28 +189,28 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size) { /* Are we inside the best run of 0x00's? */ if (best.base != -1 && i >= best.base && i < (best.base + best.len)) - { - if (i == best.base) - *tp++ = ':'; - continue; - } + { + if (i == best.base) + *tp++ = ':'; + continue; + } /* Are we following an initial run of 0x00s or any real hex? */ if (i != 0) - *tp++ = ':'; + *tp++ = ':'; /* Is this address an encapsulated IPv4? */ if (i == 6 && best.base == 0 && - (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) - { - if (!inet_ntop4 (src + 12, tp, sizeof tmp - (tp - tmp))) - return (NULL); - tp += strlen (tp); - break; - } + (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) + { + if (!inet_ntop4 (src + 12, tp, sizeof tmp - (tp - tmp))) + return (NULL); + tp += strlen (tp); + break; + } { - int len = sprintf (tp, "%x", words[i]); - if (len < 0) - return NULL; - tp += len; + int len = sprintf (tp, "%x", words[i]); + if (len < 0) + return NULL; + tp += len; } } /* Was it a trailing run of 0x00's? */ |