From f449f278dd3c70e479a035f50a9bb817a9b433ba Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:24:08 +0200 Subject: Adding upstream version 3.2.6. Signed-off-by: Daniel Baumann --- src/contrib/musl/inet_ntop.c | 79 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 src/contrib/musl/inet_ntop.c (limited to 'src/contrib/musl/inet_ntop.c') diff --git a/src/contrib/musl/inet_ntop.c b/src/contrib/musl/inet_ntop.c new file mode 100644 index 0000000..1b72a61 --- /dev/null +++ b/src/contrib/musl/inet_ntop.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2005-2020 Rich Felker, et al. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include + +#include "contrib/musl/inet_ntop.h" +#include "contrib/openbsd/strlcpy.h" + +const char *knot_inet_ntop(int af, const void *restrict a0, char *restrict s, socklen_t l) +{ + const unsigned char *a = a0; + int i, j, max, best; + char buf[100]; + + switch (af) { + case AF_INET: + if (snprintf(s, l, "%d.%d.%d.%d", a[0],a[1],a[2],a[3]) < l) + return s; + break; + case AF_INET6: + if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\377\377", 12)) + (void)snprintf(buf, sizeof buf, + "%x:%x:%x:%x:%x:%x:%x:%x", + 256*a[0]+a[1],256*a[2]+a[3], + 256*a[4]+a[5],256*a[6]+a[7], + 256*a[8]+a[9],256*a[10]+a[11], + 256*a[12]+a[13],256*a[14]+a[15]); + else + (void)snprintf(buf, sizeof buf, + "%x:%x:%x:%x:%x:%x:%d.%d.%d.%d", + 256*a[0]+a[1],256*a[2]+a[3], + 256*a[4]+a[5],256*a[6]+a[7], + 256*a[8]+a[9],256*a[10]+a[11], + a[12],a[13],a[14],a[15]); + /* Replace longest /(^0|:)[:0]{2,}/ with "::" */ + for (i=best=0, max=2; buf[i]; i++) { + if (i && buf[i] != ':') continue; + j = strspn(buf+i, ":0"); + if (j>max) best=i, max=j; + } + if (max>3) { + buf[best] = buf[best+1] = ':'; + memmove(buf+best+2, buf+best+max, i-best-max+1); + } + if (strlen(buf) < l) { + strlcpy(s, buf, l); + return s; + } + break; + default: + errno = EAFNOSUPPORT; + return 0; + } + errno = ENOSPC; + return 0; +} -- cgit v1.2.3