aboutsummaryrefslogtreecommitdiff
path: root/resolv
diff options
context:
space:
mode:
Diffstat (limited to 'resolv')
-rw-r--r--resolv/Makefile1
-rw-r--r--resolv/Versions3
-rw-r--r--resolv/ns_name.c125
-rw-r--r--resolv/ns_name_pton.c157
4 files changed, 161 insertions, 125 deletions
diff --git a/resolv/Makefile b/resolv/Makefile
index 3145dde..7839e1f 100644
--- a/resolv/Makefile
+++ b/resolv/Makefile
@@ -33,6 +33,7 @@ routines := \
inet_ntop \
inet_pton \
ns_name_ntop \
+ ns_name_pton \
ns_name_skip \
ns_name_uncompress \
ns_name_unpack \
diff --git a/resolv/Versions b/resolv/Versions
index 9e8762f..770a2b8 100644
--- a/resolv/Versions
+++ b/resolv/Versions
@@ -26,6 +26,7 @@ libc {
}
GLIBC_2.9 {
ns_name_ntop;
+ ns_name_pton;
ns_name_skip;
ns_name_uncompress;
ns_name_unpack;
@@ -38,6 +39,7 @@ libc {
getaddrinfo_a;
%endif
ns_name_ntop;
+ ns_name_pton;
ns_name_skip;
ns_name_uncompress;
ns_name_unpack;
@@ -50,6 +52,7 @@ libc {
__inet_aton_exact;
__inet_pton_length;
__ns_name_ntop;
+ __ns_name_pton;
__ns_name_skip;
__ns_name_uncompress;
__ns_name_unpack;
diff --git a/resolv/ns_name.c b/resolv/ns_name.c
index 35e25cb..9f7ca4a 100644
--- a/resolv/ns_name.c
+++ b/resolv/ns_name.c
@@ -29,10 +29,6 @@
# define SPRINTF(x) ((size_t)sprintf x)
-/* Data. */
-
-static const char digits[] = "0123456789";
-
/* Forward. */
static int dn_find(const u_char *, const u_char *,
@@ -42,127 +38,6 @@ static int labellen(const u_char *);
/* Public. */
-
-/*%
- * Convert an ascii string into an encoded domain name as per RFC1035.
- *
- * return:
- *
- *\li -1 if it fails
- *\li 1 if string was fully qualified
- *\li 0 is string was not fully qualified
- *
- * notes:
- *\li Enforces label and domain length limits.
- */
-
-int
-ns_name_pton(const char *src, u_char *dst, size_t dstsiz)
-{
- u_char *label, *bp, *eom;
- int c, n, escaped;
- char *cp;
-
- escaped = 0;
- bp = dst;
- eom = dst + dstsiz;
- label = bp++;
-
- while ((c = *src++) != 0) {
- if (escaped) {
- if ((cp = strchr(digits, c)) != NULL) {
- n = (cp - digits) * 100;
- if ((c = *src++) == 0 ||
- (cp = strchr(digits, c)) == NULL) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- n += (cp - digits) * 10;
- if ((c = *src++) == 0 ||
- (cp = strchr(digits, c)) == NULL) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- n += (cp - digits);
- if (n > 255) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- c = n;
- }
- escaped = 0;
- } else if (c == '\\') {
- escaped = 1;
- continue;
- } else if (c == '.') {
- c = (bp - label - 1);
- if ((c & NS_CMPRSFLGS) != 0) { /*%< Label too big. */
- __set_errno (EMSGSIZE);
- return (-1);
- }
- if (label >= eom) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- *label = c;
- /* Fully qualified ? */
- if (*src == '\0') {
- if (c != 0) {
- if (bp >= eom) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- *bp++ = '\0';
- }
- if ((bp - dst) > MAXCDNAME) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- return (1);
- }
- if (c == 0 || *src == '.') {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- label = bp++;
- continue;
- }
- if (bp >= eom) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- *bp++ = (u_char)c;
- }
- if (escaped) {
- /* Trailing backslash. */
- __set_errno (EMSGSIZE);
- return -1;
- }
- c = (bp - label - 1);
- if ((c & NS_CMPRSFLGS) != 0) { /*%< Label too big. */
- __set_errno (EMSGSIZE);
- return (-1);
- }
- if (label >= eom) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- *label = c;
- if (c != 0) {
- if (bp >= eom) {
- __set_errno (EMSGSIZE);
- return (-1);
- }
- *bp++ = 0;
- }
- if ((bp - dst) > MAXCDNAME) { /*%< src too big */
- __set_errno (EMSGSIZE);
- return (-1);
- }
- return (0);
-}
-libresolv_hidden_def (ns_name_pton)
-
/*%
* Convert a network strings labels into all lowercase.
*
diff --git a/resolv/ns_name_pton.c b/resolv/ns_name_pton.c
new file mode 100644
index 0000000..16f8ec8
--- /dev/null
+++ b/resolv/ns_name_pton.c
@@ -0,0 +1,157 @@
+/* Convert a DNS domain name from presentation to wire format.
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1996,1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <arpa/nameser.h>
+#include <errno.h>
+#include <shlib-compat.h>
+
+/* Converts an ASCII string into an encoded domain name as per
+ RFC1035. Returns -1 if it fails, 1 if string was fully qualified,
+ 0 is string was not fully qualified. Enforces label and domain
+ length limits. */
+int
+___ns_name_pton (const char *src, unsigned char *dst, size_t dstsiz)
+{
+ unsigned char *label, *bp, *eom;
+ int c, n, escaped;
+
+ escaped = 0;
+ bp = dst;
+ eom = dst + dstsiz;
+ label = bp++;
+
+ while ((c = *src++) != 0)
+ {
+ if (escaped)
+ {
+ if ('0' <= c && c <= '9')
+ {
+ n = (c - '0') * 100;
+ if ((c = *src++) == 0 || c < '0' || c > '9')
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ n += (c - '0') * 10;
+ if ((c = *src++) == 0 || c < '0' || c > '9')
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ n += c - '0';
+ if (n > 255)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ c = n;
+ }
+ escaped = 0;
+ }
+ else if (c == '\\')
+ {
+ escaped = 1;
+ continue;
+ }
+ else if (c == '.')
+ {
+ c = (bp - label - 1);
+ if ((c & NS_CMPRSFLGS) != 0) /* Label too big. */
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ if (label >= eom)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ *label = c;
+ /* Fully qualified ? */
+ if (*src == '\0')
+ {
+ if (c != 0)
+ {
+ if (bp >= eom)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ *bp++ = '\0';
+ }
+ if ((bp - dst) > MAXCDNAME)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ return 1;
+ }
+ if (c == 0 || *src == '.')
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ label = bp++;
+ continue;
+ }
+ if (bp >= eom)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ *bp++ = (unsigned char) c;
+ }
+ if (escaped) /* Trailing backslash. */
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ c = (bp - label - 1);
+ if ((c & NS_CMPRSFLGS) != 0) /* Label too big. */
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ if (label >= eom)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ *label = c;
+ if (c != 0)
+ {
+ if (bp >= eom)
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ *bp++ = 0;
+ }
+ if ((bp - dst) > MAXCDNAME) /* src too big. */
+ {
+ __set_errno (EMSGSIZE);
+ return -1;
+ }
+ return 0;
+}
+versioned_symbol (libc, ___ns_name_pton, ns_name_pton, GLIBC_2_34);
+versioned_symbol (libc, ___ns_name_pton, __ns_name_pton, GLIBC_PRIVATE);
+libc_hidden_ver (___ns_name_pton, __ns_name_pton)
+
+#if OTHER_SHLIB_COMPAT (libresolv, GLIBC_2_9, GLIBC_2_34)
+compat_symbol (libresolv, ___ns_name_pton, ns_name_pton, GLIBC_2_9);
+#endif
generated by cgit v1.1 at 2024-11-01 20:15:40 +0000