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GNU C Library master sources branch master updated. glibc-2.25-538-g60149b2
- From: fw at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 21 Jun 2017 11:11:21 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.25-538-g60149b2
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=60149b28590be28051f99d0a343d7fbe002f2a8c
commit 60149b28590be28051f99d0a343d7fbe002f2a8c
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Jun 21 13:09:08 2017 +0200
__inet_pton_length: Implement new internal helper function
diff --git a/ChangeLog b/ChangeLog
index 58cf98c..a3a8284 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,23 @@
2017-06-21 Florian Weimer <fweimer@redhat.com>
+ Add the __inet_pton_length helper function.
+ * resolv/resolv-internal.h (__inet_pton_length): Declare.
+ * resolv/inet_pton (__inet_pton_length): Rename from __inet_pton.
+ Add length argument.
+ (__inet_pton): New function.
+ (inet_pton4): Add length argument.
+ (hex_digit_value): New function.
+ (inet_pton6): Add length argument. Call hex_digit_value. Use
+ memmove and memset to fill :: gap.
+ * resolv/Makefile (tests, tsts-static, tests-internal): Add
+ tst-inet_pton.
+ * resolv/tst-inet_pton.c: New file.
+ * support/Makefile (libsupport-routines): Add xmprotect.
+ * support/xunistd.h (xmprotect): Declare.
+ * support/xmprotect.c: New file.
+
+2017-06-21 Florian Weimer <fweimer@redhat.com>
+
Add IPv6 getaddrinfo coverage to tst-inet6_scopeid_pton.c.
* inet/tst-inet6_scopeid_pton.c: Switch to <support/test-driver.c>.
(call_gai, check_ai): New functions.
diff --git a/resolv/Makefile b/resolv/Makefile
index a9b355f..8294d94 100644
--- a/resolv/Makefile
+++ b/resolv/Makefile
@@ -64,6 +64,9 @@ tests-internal += \
endif
+# This test accesses __inet_ntop_range, an internal libc function.
+tests-internal += tst-inet_pton
+
# This test sends millions of packets and is rather slow.
xtests += tst-resolv-qtypes
endif
diff --git a/resolv/Versions b/resolv/Versions
index e561bce..f528ed5 100644
--- a/resolv/Versions
+++ b/resolv/Versions
@@ -27,6 +27,7 @@ libc {
__h_errno; __resp;
__res_maybe_init; __res_iclose;
+ __inet_pton_length;
}
}
diff --git a/resolv/inet_pton.c b/resolv/inet_pton.c
index 68f0fa5..b95da47 100644
--- a/resolv/inet_pton.c
+++ b/resolv/inet_pton.c
@@ -1,3 +1,20 @@
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
/*
* Copyright (c) 1996,1999 by Internet Software Consortium.
*
@@ -15,58 +32,53 @@
* SOFTWARE.
*/
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <ctype.h>
-#include <string.h>
#include <errno.h>
+#include <netinet/in.h>
+#include <resolv/resolv-internal.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
-static int inet_pton4 (const char *src, unsigned char *dst);
-static int inet_pton6 (const char *src, unsigned char *dst);
+static int inet_pton4 (const char *src, const char *src_end, u_char *dst);
+static int inet_pton6 (const char *src, const char *src_end, u_char *dst);
-/* Convert from presentation format (which usually means ASCII printable)
- * to network format (which is usually some kind of binary format).
- *
- * return:
- * 1 if the address was valid for the specified address family
- * 0 if the address wasn't valid (`dst' is untouched in this case)
- * -1 if some other error occurred (`dst' is untouched in this case, too)
- * author:
- * Paul Vixie, 1996.
- */
int
-__inet_pton (int af, const char *src, void *dst)
+__inet_pton_length (int af, const char *src, size_t srclen, void *dst)
{
switch (af)
{
case AF_INET:
- return inet_pton4 (src, dst);
+ return inet_pton4 (src, src + srclen, dst);
case AF_INET6:
- return inet_pton6 (src, dst);
+ return inet_pton6 (src, src + srclen, dst);
default:
__set_errno (EAFNOSUPPORT);
return -1;
}
}
+libc_hidden_def (__inet_pton_length)
+
+/* Like __inet_pton_length, but use strlen (SRC) as the length of
+ SRC. */
+int
+__inet_pton (int af, const char *src, void *dst)
+{
+ return __inet_pton_length (af, src, strlen (src), dst);
+}
libc_hidden_def (__inet_pton)
weak_alias (__inet_pton, inet_pton)
libc_hidden_weak (inet_pton)
-/* Like inet_atonbut without all the hexadecimal, octal and shorthand.
- *
- * return:
- * 1 if `src' is a valid dotted quad, else 0.
- * notice:
- * does not touch `dst' unless it's returning 1.
- * author:
- * Paul Vixie, 1996.
- */
+/* Like inet_aton but without all the hexadecimal, octal and shorthand
+ (and trailing garbage is not ignored). Return 1 if SRC is a valid
+ dotted quad, else 0. This function does not touch DST unless it's
+ returning 1.
+ Author: Paul Vixie, 1996. */
static int
-inet_pton4 (const char *src, unsigned char *dst)
+inet_pton4 (const char *src, const char *end, unsigned char *dst)
{
int saw_digit, octets, ch;
unsigned char tmp[NS_INADDRSZ], *tp;
@@ -74,8 +86,9 @@ inet_pton4 (const char *src, unsigned char *dst)
saw_digit = 0;
octets = 0;
*(tp = tmp) = 0;
- while ((ch = *src++) != '\0')
+ while (src < end)
{
+ ch = *src++;
if (ch >= '0' && ch <= '9')
{
unsigned int new = *tp * 10 + (ch - '0');
@@ -108,22 +121,27 @@ inet_pton4 (const char *src, unsigned char *dst)
return 1;
}
-/* Cconvert presentation level address to network order binary form.
- *
- * return:
- * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
- * notice:
- * (1) does not touch `dst' unless it's returning 1.
- * (2) :: in a full address is silently ignored.
- * credit:
- * inspired by Mark Andrews.
- * author:
- * Paul Vixie, 1996.
- */
+/* Return the value of CH as a hexademical digit, or -1 if it is a
+ different type of character. */
+static int
+hex_digit_value (char ch)
+{
+ if ('0' <= ch && ch <= '9')
+ return ch - '0';
+ if ('a' <= ch && ch <= 'f')
+ return ch - 'a' + 10;
+ if ('A' <= ch && ch <= 'F')
+ return ch - 'A' + 10;
+ return -1;
+}
+
+/* Convert presentation-level IPv6 address to network order binary
+ form. Return 1 if SRC is a valid [RFC1884 2.2] address, else 0.
+ This function does not touch DST unless it's returning 1.
+ Author: Paul Vixie, 1996. Inspired by Mark Andrews. */
static int
-inet_pton6 (const char *src, unsigned char *dst)
+inet_pton6 (const char *src, const char *src_endp, unsigned char *dst)
{
- static const char xdigits[] = "0123456789abcdef";
unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp;
const char *curtok;
int ch, saw_xdigit;
@@ -132,22 +150,28 @@ inet_pton6 (const char *src, unsigned char *dst)
tp = memset (tmp, '\0', NS_IN6ADDRSZ);
endp = tp + NS_IN6ADDRSZ;
colonp = NULL;
+
/* Leading :: requires some special handling. */
+ if (src == src_endp)
+ return 0;
if (*src == ':')
- if (*++src != ':')
- return 0;
+ {
+ ++src;
+ if (src == src_endp || *src != ':')
+ return 0;
+ }
+
curtok = src;
saw_xdigit = 0;
val = 0;
- while ((ch = tolower (*src++)) != '\0')
+ while (src < src_endp)
{
- const char *pch;
-
- pch = strchr (xdigits, ch);
- if (pch != NULL)
+ ch = *src++;
+ int digit = hex_digit_value (ch);
+ if (digit >= 0)
{
val <<= 4;
- val |= (pch - xdigits);
+ val |= digit;
if (val > 0xffff)
return 0;
saw_xdigit = 1;
@@ -163,10 +187,8 @@ inet_pton6 (const char *src, unsigned char *dst)
colonp = tp;
continue;
}
- else if (*src == '\0')
- {
- return 0;
- }
+ else if (src == src_endp)
+ return 0;
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (unsigned char) (val >> 8) & 0xff;
@@ -175,8 +197,8 @@ inet_pton6 (const char *src, unsigned char *dst)
val = 0;
continue;
}
- if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
- inet_pton4 (curtok, tp) > 0)
+ if (ch == '.' && ((tp + NS_INADDRSZ) <= endp)
+ && inet_pton4 (curtok, src_endp, tp) > 0)
{
tp += NS_INADDRSZ;
saw_xdigit = 0;
@@ -193,20 +215,13 @@ inet_pton6 (const char *src, unsigned char *dst)
}
if (colonp != NULL)
{
- /*
- * Since some memmove's erroneously fail to handle
- * overlapping regions, we'll do the shift by hand.
- */
- const int n = tp - colonp;
- int i;
-
+ /* Replace :: with zeros. */
if (tp == endp)
- return 0;
- for (i = 1; i <= n; i++)
- {
- endp[- i] = colonp[n - i];
- colonp[n - i] = 0;
- }
+ /* :: would expand to a zero-width field. */
+ return 0;
+ size_t n = tp - colonp;
+ memmove (endp - n, colonp, n);
+ memset (colonp, 0, endp - n - colonp);
tp = endp;
}
if (tp != endp)
diff --git a/resolv/resolv-internal.h b/resolv/resolv-internal.h
index 0d69ce1..9afaa07 100644
--- a/resolv/resolv-internal.h
+++ b/resolv/resolv-internal.h
@@ -56,4 +56,13 @@ enum
int __res_nopt (res_state, int n0, unsigned char *buf, int buflen,
int anslen) attribute_hidden;
+/* Convert from presentation format (which usually means ASCII
+ printable) to network format (which is usually some kind of binary
+ format). The input is in the range [SRC, SRC + SRCLEN). The
+ output is written to DST (which has to be 4 or 16 bytes long,
+ depending on AF). Return 0 for invalid input, 1 for success, -1
+ for an invalid address family. */
+int __inet_pton_length (int af, const char *src, size_t srclen, void *);
+libc_hidden_proto (__inet_pton_length)
+
#endif /* _RESOLV_INTERNAL_H */
diff --git a/resolv/tst-inet_pton.c b/resolv/tst-inet_pton.c
new file mode 100644
index 0000000..7fffb24
--- /dev/null
+++ b/resolv/tst-inet_pton.c
@@ -0,0 +1,549 @@
+/* Test inet_pton functions.
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <arpa/inet.h>
+#include <resolv/resolv-internal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <unistd.h>
+
+/* Memory region created by next_to_fault_allocate. */
+struct next_to_fault
+{
+ /* The user data. */
+ char *buffer;
+ size_t length;
+
+ /* The entire allocated region. */
+ void *region_start;
+ size_t region_size;
+};
+
+/* Allocate a buffer of SIZE bytes just before a page which is mapped
+ with PROT_NONE (so that overrunning the buffer will cause a
+ fault). */
+static struct next_to_fault
+next_to_fault_allocate (size_t size)
+{
+ long page_size = sysconf (_SC_PAGE_SIZE);
+ TEST_VERIFY_EXIT (page_size > 0);
+ struct next_to_fault result;
+ result.region_size = roundup (size, page_size) + page_size;
+ TEST_VERIFY_EXIT (size + page_size > size);
+ TEST_VERIFY_EXIT (result.region_size > size);
+ result.region_start
+ = xmmap (NULL, result.region_size, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1);
+ /* Unmap the page after the allocation. */
+ xmprotect (result.region_start + (result.region_size - page_size),
+ page_size, PROT_NONE);
+ /* Align the allocation within the region so that it ends just
+ before the PROT_NONE page. */
+ result.buffer = result.region_start + result.region_size - page_size - size;
+ result.length = size;
+ return result;
+}
+
+/* Deallocate the memory region allocated by
+ next_to_fault_allocate. */
+static void
+next_to_fault_free (struct next_to_fault *ntf)
+{
+ xmunmap (ntf->region_start, ntf->region_size);
+ *ntf = (struct next_to_fault) { NULL, };
+}
+
+struct test_case
+{
+ /* The input data. */
+ const char *input;
+
+ /* True if AF_INET parses successfully. */
+ bool ipv4_ok;
+
+ /* True if AF_INET6 parses successfully. */
+ bool ipv6_ok;
+
+ /* Expected result for AF_INET. */
+ unsigned char ipv4_expected[4];
+
+ /* Expected result for AF_INET6. */
+ unsigned char ipv6_expected[16];
+};
+
+static void
+check_result (const char *what, const struct test_case *t, int family,
+ void *result_buffer, int inet_ret)
+{
+ TEST_VERIFY_EXIT (inet_ret >= -1);
+ TEST_VERIFY_EXIT (inet_ret <= 1);
+
+ int ok;
+ const unsigned char *expected;
+ size_t result_size;
+ switch (family)
+ {
+ case AF_INET:
+ ok = t->ipv4_ok;
+ expected = t->ipv4_expected;
+ result_size = 4;
+ break;
+ case AF_INET6:
+ ok = t->ipv6_ok;
+ expected = t->ipv6_expected;
+ result_size = 16;
+ break;
+ default:
+ FAIL_EXIT1 ("invalid address family %d", family);
+ }
+
+ if (inet_ret != ok)
+ {
+ support_record_failure ();
+ printf ("error: %s return value mismatch for [[%s]], family %d\n"
+ " expected: %d\n"
+ " actual: %d\n",
+ what, t->input, family, ok, inet_ret);
+ return;
+ }
+ if (memcmp (result_buffer, expected, result_size) != 0)
+ {
+ support_record_failure ();
+ printf ("error: %s result mismatch for [[%s]], family %d\n",
+ what, t->input, family);
+ }
+}
+
+static void
+run_one_test (const struct test_case *t)
+{
+ size_t test_len = strlen (t->input);
+
+ struct next_to_fault ntf_out4 = next_to_fault_allocate (4);
+ struct next_to_fault ntf_out6 = next_to_fault_allocate (16);
+
+ /* inet_pton requires NUL termination. */
+ {
+ struct next_to_fault ntf_in = next_to_fault_allocate (test_len + 1);
+ memcpy (ntf_in.buffer, t->input, test_len + 1);
+ memset (ntf_out4.buffer, 0, 4);
+ check_result ("inet_pton", t, AF_INET, ntf_out4.buffer,
+ inet_pton (AF_INET, ntf_in.buffer, ntf_out4.buffer));
+ memset (ntf_out6.buffer, 0, 16);
+ check_result ("inet_pton", t, AF_INET6, ntf_out6.buffer,
+ inet_pton (AF_INET6, ntf_in.buffer, ntf_out6.buffer));
+ next_to_fault_free (&ntf_in);
+ }
+
+ /* __inet_pton_length does not require NUL termination. */
+ {
+ struct next_to_fault ntf_in = next_to_fault_allocate (test_len);
+ memcpy (ntf_in.buffer, t->input, test_len);
+ memset (ntf_out4.buffer, 0, 4);
+ check_result ("__inet_pton_length", t, AF_INET, ntf_out4.buffer,
+ __inet_pton_length (AF_INET, ntf_in.buffer, ntf_in.length,
+ ntf_out4.buffer));
+ memset (ntf_out6.buffer, 0, 16);
+ check_result ("__inet_pton_length", t, AF_INET6, ntf_out6.buffer,
+ __inet_pton_length (AF_INET6, ntf_in.buffer, ntf_in.length,
+ ntf_out6.buffer));
+ next_to_fault_free (&ntf_in);
+ }
+
+ next_to_fault_free (&ntf_out4);
+ next_to_fault_free (&ntf_out6);
+}
+
+/* The test cases were manually crafted and the set enhanced with
+ American Fuzzy Lop. */
+const struct test_case test_cases[] =
+ {
+ {.input = ".:", },
+ {.input = "0.0.0.0",
+ .ipv4_ok = true,
+ .ipv4_expected = {0, 0, 0, 0},
+ },
+ {.input = "0.:", },
+ {.input = "00", },
+ {.input = "0000000", },
+ {.input = "00000000000000000", },
+ {.input = "092.", },
+ {.input = "10.0.301.2", },
+ {.input = "127.0.0.1",
+ .ipv4_ok = true,
+ .ipv4_expected = {127, 0, 0, 1},
+ },
+ {.input = "19..", },
+ {.input = "192.0.2.-1", },
+ {.input = "192.0.2.01", },
+ {.input = "192.0.2.1.", },
+ {.input = "192.0.2.1192.", },
+ {.input = "192.0.2.192.\377..", },
+ {.input = "192.0.2.256", },
+ {.input = "192.0.2.27",
+ .ipv4_ok = true,
+ .ipv4_expected = {192, 0, 2, 27},
+ },
+ {.input = "192.0.201.", },
+ {.input = "192.0.261.", },
+ {.input = "192.0.2\256", },
+ {.input = "192.0.\262.", },
+ {.input = "192.062.", },
+ {.input = "192.092.\256", },
+ {.input = "192.0\2562.", },
+ {.input = "192.192.0.2661\031", },
+ {.input = "192.192.00n2.1.", },
+ {.input = "192.192.2.190.", },
+ {.input = "192.255.255.2555", },
+ {.input = "192.92.219\023.", },
+ {.input = "192.\260.2.", },
+ {.input = "1:1::1:1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1
+ },
+ },
+ {.input = "2", },
+ {.input = "2.", },
+ {.input = "2001:db8:00001::f",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x1, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf
+ },
+ },
+ {.input = "2001:db8:10000::f", },
+ {.input = "2001:db8:1234:5678:abcd:ef01:2345:67",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x12, 0x34, 0x56, 0x78,
+ 0xab, 0xcd, 0xef, 0x1, 0x23, 0x45, 0x0, 0x67
+ },
+ },
+ {.input = "2001:db8:1234:5678:abcd:ef01:2345:6789:1", },
+ {.input = "2001:db8:1234:5678:abcd:ef01:2345::6789", },
+ {.input = "2001:db8::0",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+ },
+ },
+ {.input = "2001:db8::00",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+ },
+ },
+ {.input = "2001:db8::1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = "2001:db8::10",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10
+ },
+ },
+ {.input = "2001:db8::19",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x19
+ },
+ },
+ {.input = "2001:db8::1::\012", },
+ {.input = "2001:db8::1::2\012", },
+ {.input = "2001:db8::2",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2
+ },
+ },
+ {.input = "2001:db8::3",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3
+ },
+ },
+ {.input = "2001:db8::4",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4
+ },
+ },
+ {.input = "2001:db8::5",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5
+ },
+ },
+ {.input = "2001:db8::6",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6
+ },
+ },
+ {.input = "2001:db8::7",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7
+ },
+ },
+ {.input = "2001:db8::8",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8
+ },
+ },
+ {.input = "2001:db8::9",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9
+ },
+ },
+ {.input = "2001:db8::A",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa
+ },
+ },
+ {.input = "2001:db8::B",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb
+ },
+ },
+ {.input = "2001:db8::C",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc
+ },
+ },
+ {.input = "2001:db8::D",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd
+ },
+ },
+ {.input = "2001:db8::E",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe
+ },
+ },
+ {.input = "2001:db8::F",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf
+ },
+ },
+ {.input = "2001:db8::a",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa
+ },
+ },
+ {.input = "2001:db8::b",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xb
+ },
+ },
+ {.input = "2001:db8::c",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc
+ },
+ },
+ {.input = "2001:db8::d",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd
+ },
+ },
+ {.input = "2001:db8::e",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe
+ },
+ },
+ {.input = "2001:db8::f",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf
+ },
+ },
+ {.input = "2001:db8::ff",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff
+ },
+ },
+ {.input = "2001:db8::ffff:2\012", },
+ {.input = "22", },
+ {.input = "2222@", },
+ {.input = "255.255.255.255",
+ .ipv4_ok = true,
+ .ipv4_expected = {255, 255, 255, 255},
+ },
+ {.input = "255.255.255.255\001", },
+ {.input = "255.255.255.25555", },
+ {.input = "2:", },
+ {.input = "2:a:8:EEEE::EEEE:F:EEE8:EEEE\034*:", },
+ {.input = "2:ff:1:1:7:ff:1:1:7.", },
+ {.input = "2f:0000000000000000000000000000000000000000000000000000000000"
+ "0000000000000000000000000000000000000000000000000000000000000000000000"
+ "0G01",
+ },
+ {.input = "429495", },
+ {.input = "5::5::", },
+ {.input = "6.6.", },
+ {.input = "992.", },
+ {.input = "::",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+ },
+ },
+ {.input = "::00001",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = "::1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = "::10000", },
+ {.input = "::1:1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1
+ },
+ },
+ {.input = "::ff:1:1:7.0.0.1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff,
+ 0x0, 0x1, 0x0, 0x1, 0x7, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = "::ff:1:1:7:ff:1:1:7.", },
+ {.input = "::ff:1:1:7ff:1:8:7.0.0.1", },
+ {.input = "::ff:1:1:7ff:1:8f:1:1:71", },
+ {.input = "::ffff:02fff:127.0.S1", },
+ {.input = "::ffff:127.0.0.1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0xff, 0xff, 0x7f, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = "::ffff:1:7.0.0.1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0xff, 0xff, 0x0, 0x1, 0x7, 0x0, 0x0, 0x1
+ },
+ },
+ {.input = ":\272", },
+ {.input = "A:f:ff:1:1:D:ff:1:1::7.", },
+ {.input = "AAAAA.", },
+ {.input = "D:::", },
+ {.input = "DF8F", },
+ {.input = "F::",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
+ },
+ },
+ {.input = "F:A:8:EEEE:8:EEEE\034*:", },
+ {.input = "F:a:8:EEEE:8:EEEE\034*:", },
+ {.input = "F:ff:100:7ff:1:8:7.0.10.1",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0x0, 0xf, 0x0, 0xff, 0x1, 0x0, 0x7, 0xff,
+ 0x0, 0x1, 0x0, 0x8, 0x7, 0x0, 0xa, 0x1
+ },
+ },
+ {.input = "d92.", },
+ {.input = "ff:00000000000000000000000000000000000000000000000000000000000"
+ "00000000000000000000000000000000000000000000000000000000000000000001",
+ },
+ {.input = "fff2:2::ff2:2:f7",
+ .ipv6_ok = true,
+ .ipv6_expected = {
+ 0xff, 0xf2, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0, 0xf, 0xf2, 0x0, 0x2, 0x0, 0xf7
+ },
+ },
+ {.input = "ffff:ff:ff:fff:ff:ff:ff:", },
+ {.input = "\272:", },
+ {NULL}
+ };
+
+static int
+do_test (void)
+{
+ for (size_t i = 0; test_cases[i].input != NULL; ++i)
+ run_one_test (test_cases + i);
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/support/Makefile b/support/Makefile
index a2480cd..423538d 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -74,6 +74,7 @@ libsupport-routines = \
xmemstream \
xmkdir \
xmmap \
+ xmprotect \
xmunmap \
xopen \
xpipe \
diff --git a/support/xmprotect.c b/support/xmprotect.c
new file mode 100644
index 0000000..9410251
--- /dev/null
+++ b/support/xmprotect.c
@@ -0,0 +1,28 @@
+/* mprotect with error checking.
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/mman.h>
+
+void
+xmprotect (void *addr, size_t length, int prot)
+{
+ if (mprotect (addr, length, prot) != 0)
+ FAIL_EXIT1 ("mprotect (%p, %zu, 0x%x): %m", addr, length, prot);
+}
diff --git a/support/xunistd.h b/support/xunistd.h
index 151d743..c947bfd 100644
--- a/support/xunistd.h
+++ b/support/xunistd.h
@@ -48,7 +48,7 @@ void xwrite (int, const void *, size_t);
/* Invoke mmap with a zero file offset. */
void *xmmap (void *addr, size_t length, int prot, int flags, int fd);
-
+void xmprotect (void *addr, size_t length, int prot);
void xmunmap (void *addr, size_t length);
__END_DECLS
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 18 ++
resolv/Makefile | 3 +
resolv/Versions | 1 +
resolv/inet_pton.c | 159 ++++++-----
resolv/resolv-internal.h | 9 +
resolv/tst-inet_pton.c | 549 ++++++++++++++++++++++++++++++++++++++
support/Makefile | 1 +
support/{xdup2.c => xmprotect.c} | 12 +-
support/xunistd.h | 2 +-
9 files changed, 675 insertions(+), 79 deletions(-)
create mode 100644 resolv/tst-inet_pton.c
copy support/{xdup2.c => xmprotect.c} (79%)
hooks/post-receive
--
GNU C Library master sources