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-rw-r--r--src/contrib/musl/inet_ntop.c79
-rw-r--r--src/contrib/musl/inet_ntop.h28
2 files changed, 107 insertions, 0 deletions
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 <arpa/inet.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#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;
+}
diff --git a/src/contrib/musl/inet_ntop.h b/src/contrib/musl/inet_ntop.h
new file mode 100644
index 0000000..73faaee
--- /dev/null
+++ b/src/contrib/musl/inet_ntop.h
@@ -0,0 +1,28 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <sys/socket.h>
+
+const char *knot_inet_ntop(int af, const void *restrict a0, char *restrict s, socklen_t l);