Subject: [alpine-aports] [PATCH] main/expat: new upstream version 2.2.0

From: Christian Kampka <[email-masked]>
Date: Thu, 30 Jun 2016 21:34:07 +0200

---
 main/expat/APKBUILD            |  12 +-
 main/expat/CVE-2016-0718.patch | 755 -----------------------------------------
 2 files changed, 4 insertions(+), 763 deletions(-)
 delete mode 100644 main/expat/CVE-2016-0718.patch

diff --git a/main/expat/APKBUILD b/main/expat/APKBUILD
index 57cea12..52c8933 100644
--- a/main/expat/APKBUILD
+++ b/main/expat/APKBUILD
@@ -1,6 +1,6 @@
 # Maintainer: Carlo Landmeter <[email-masked]>
 pkgname=expat
-pkgver=2.1.1
+pkgver=2.2.0
 pkgrel=0
 pkgdesc="An XML Parser library written in C"
 url="http://www.libexpat.org/"
@@ -9,7 +9,6 @@ license='MIT'
 depends=
 makedepends=
 source="http://downloads.sourceforge.net/project/expat/expat/$pkgver/expat-$pkgver.tar.bz2
-	CVE-2016-0718.patch
 	"
 subpackages="$pkgname-dev $pkgname-doc"
 
@@ -30,9 +29,6 @@ package() {
 	cd "$builddir"
 	make DESTDIR="$pkgdir/" install || return 1
 }
-md5sums="7380a64a8e3a9d66a9887b01d0d7ea81  expat-2.1.1.tar.bz2
-1b44aacd01618cf14ceed11f77eccd69  CVE-2016-0718.patch"
-sha256sums="aff584e5a2f759dcfc6d48671e9529f6afe1e30b0cd6a4cec200cbe3f793de67  expat-2.1.1.tar.bz2
-665c3bbd46dc7e65696b3f6b7f3ba23d1427eb95686ceb4e305b19e534036403  CVE-2016-0718.patch"
-sha512sums="088e2ef3434f2affd4fc79fe46f0e9826b9b4c3931ddc780cd18892f1cd1e11365169c6807f45916a56bb6abcc627dcd17a23f970be0bf464f048f5be2713628  expat-2.1.1.tar.bz2
-6ab9227c70e210fd6970281103f433ca0d51c56f185a6c516cd239a1b69e20dbd523ef8d55260dac4a13503a44c3f5de050a04946a683da11ef18998a199fac0  CVE-2016-0718.patch"
+md5sums="2f47841c829facb346eb6e3fab5212e2  expat-2.2.0.tar.bz2"
+sha256sums="d9e50ff2d19b3538bd2127902a89987474e1a4db8e43a66a4d1a712ab9a504ff  expat-2.2.0.tar.bz2"
+sha512sums="2be1a6eea87b439374bfacb1fbb8e814fd8a085d5dfd3ca3be69d1af29b5dc93d36cbdec5f6843ca6d5910843c7ffbc498adc2a561b9dcece488edf3c6f8c7c8  expat-2.2.0.tar.bz2"
diff --git a/main/expat/CVE-2016-0718.patch b/main/expat/CVE-2016-0718.patch
deleted file mode 100644
index 7ba93f8..0000000
--- a/main/expat/CVE-2016-0718.patch
+++ /dev/null
@@ -1,755 +0,0 @@
-From cdfcb1b5c95e93b00ae9e9d25708b4a3bee72c15 Mon Sep 17 00:00:00 2001
-From: Sebastian Pipping <sebastian () pipping org>
-Date: Mon, 2 May 2016 00:02:44 +0200
-Subject: [PATCH] Address CVE-2016-0718 (/patch/ version 2.2.1)
-
-* Out of bounds memory access when doing text conversion on malformed input
-* Integer overflow related to memory allocation
-
-Reported by Gustavo Grieco
-
-Patch credits go to
-* Christian Heimes
-* Karl Waclawek
-* Gustavo Grieco
-* Sebastian Pipping
-* Pascal Cuoq
----
- expat/lib/xmlparse.c    |  34 +++++++++-----
- expat/lib/xmltok.c      | 115 +++++++++++++++++++++++++++++++++++-------------
- expat/lib/xmltok.h      |  10 ++++-
- expat/lib/xmltok_impl.c |  62 +++++++++++++-------------
- 4 files changed, 146 insertions(+), 75 deletions(-)
-
-diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
-index e308c79..13e080d 100644
---- a/expat/lib/xmlparse.c
-+++ b/lib/xmlparse.c
-@@ -2426,11 +2426,11 @@ doContent(XML_Parser parser,
-           for (;;) {
-             int bufSize;
-             int convLen;
--            XmlConvert(enc,
-+            const enum XML_Convert_Result convert_res = XmlConvert(enc,
-                        &fromPtr, rawNameEnd,
-                        (ICHAR **)&toPtr, (ICHAR *)tag->bufEnd - 1);
-             convLen = (int)(toPtr - (XML_Char *)tag->buf);
--            if (fromPtr == rawNameEnd) {
-+            if ((convert_res == XML_CONVERT_COMPLETED) || (convert_res == XML_CONVERT_INPUT_INCOMPLETE)) {
-               tag->name.strLen = convLen;
-               break;
-             }
-@@ -2651,11 +2651,11 @@ doContent(XML_Parser parser,
-           if (MUST_CONVERT(enc, s)) {
-             for (;;) {
-               ICHAR *dataPtr = (ICHAR *)dataBuf;
--              XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
-+              const enum XML_Convert_Result convert_res = XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
-               *eventEndPP = s;
-               charDataHandler(handlerArg, dataBuf,
-                               (int)(dataPtr - (ICHAR *)dataBuf));
--              if (s == next)
-+              if ((convert_res == XML_CONVERT_COMPLETED) || (convert_res == XML_CONVERT_INPUT_INCOMPLETE))
-                 break;
-               *eventPP = s;
-             }
-@@ -3261,11 +3261,11 @@ doCdataSection(XML_Parser parser,
-           if (MUST_CONVERT(enc, s)) {
-             for (;;) {
-               ICHAR *dataPtr = (ICHAR *)dataBuf;
--              XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
-+              const enum XML_Convert_Result convert_res = XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
-               *eventEndPP = next;
-               charDataHandler(handlerArg, dataBuf,
-                               (int)(dataPtr - (ICHAR *)dataBuf));
--              if (s == next)
-+              if ((convert_res == XML_CONVERT_COMPLETED) || (convert_res == XML_CONVERT_INPUT_INCOMPLETE))
-                 break;
-               *eventPP = s;
-             }
-@@ -5342,6 +5342,7 @@ reportDefault(XML_Parser parser, const ENCODING *enc,
-               const char *s, const char *end)
- {
-   if (MUST_CONVERT(enc, s)) {
-+    enum XML_Convert_Result convert_res;
-     const char **eventPP;
-     const char **eventEndPP;
-     if (enc == encoding) {
-@@ -5354,11 +5355,11 @@ reportDefault(XML_Parser parser, const ENCODING *enc,
-     }
-     do {
-       ICHAR *dataPtr = (ICHAR *)dataBuf;
--      XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
-+      convert_res = XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
-       *eventEndPP = s;
-       defaultHandler(handlerArg, dataBuf, (int)(dataPtr - (ICHAR *)dataBuf));
-       *eventPP = s;
--    } while (s != end);
-+    } while ((convert_res != XML_CONVERT_COMPLETED) && (convert_res != XML_CONVERT_INPUT_INCOMPLETE));
-   }
-   else
-     defaultHandler(handlerArg, (XML_Char *)s, (int)((XML_Char *)end - (XML_Char *)s));
-@@ -6163,8 +6164,8 @@ poolAppend(STRING_POOL *pool, const ENCODING *enc,
-   if (!pool->ptr && !poolGrow(pool))
-     return NULL;
-   for (;;) {
--    XmlConvert(enc, &ptr, end, (ICHAR **)&(pool->ptr), (ICHAR *)pool->end);
--    if (ptr == end)
-+    const enum XML_Convert_Result convert_res = XmlConvert(enc, &ptr, end, (ICHAR **)&(pool->ptr), (ICHAR *)pool->end);
-+    if ((convert_res == XML_CONVERT_COMPLETED) || (convert_res == XML_CONVERT_INPUT_INCOMPLETE))
-       break;
-     if (!poolGrow(pool))
-       return NULL;
-@@ -6248,8 +6249,13 @@ poolGrow(STRING_POOL *pool)
-     }
-   }
-   if (pool->blocks && pool->start == pool->blocks->s) {
--    int blockSize = (int)(pool->end - pool->start)*2;
--    BLOCK *temp = (BLOCK *)
-+    BLOCK *temp;
-+    int blockSize = (int)((unsigned)(pool->end - pool->start)*2U);
-+
-+    if (blockSize < 0)
-+      return XML_FALSE;
-+
-+    temp = (BLOCK *)
-       pool->mem->realloc_fcn(pool->blocks,
-                              (offsetof(BLOCK, s)
-                               + blockSize * sizeof(XML_Char)));
-@@ -6264,6 +6270,10 @@ poolGrow(STRING_POOL *pool)
-   else {
-     BLOCK *tem;
-     int blockSize = (int)(pool->end - pool->start);
-+
-+    if (blockSize < 0)
-+      return XML_FALSE;
-+
-     if (blockSize < INIT_BLOCK_SIZE)
-       blockSize = INIT_BLOCK_SIZE;
-     else
-diff --git a/expat/lib/xmltok.c b/expat/lib/xmltok.c
-index bf09dfc..cb98ce1 100644
---- a/expat/lib/xmltok.c
-+++ b/lib/xmltok.c
-@@ -318,39 +318,55 @@ enum {  /* UTF8_cvalN is value of masked first byte of N byte sequence */
-   UTF8_cval4 = 0xf0
- };
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- utf8_toUtf8(const ENCODING *enc,
-             const char **fromP, const char *fromLim,
-             char **toP, const char *toLim)
- {
-+  enum XML_Convert_Result res = XML_CONVERT_COMPLETED;
-   char *to;
-   const char *from;
-   if (fromLim - *fromP > toLim - *toP) {
-     /* Avoid copying partial characters. */
-+    res = XML_CONVERT_OUTPUT_EXHAUSTED;
-     for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--)
-       if (((unsigned char)fromLim[-1] & 0xc0) != 0x80)
-         break;
-   }
--  for (to = *toP, from = *fromP; from != fromLim; from++, to++)
-+  for (to = *toP, from = *fromP; (from < fromLim) && (to < toLim); from++, to++)
-     *to = *from;
-   *fromP = from;
-   *toP = to;
-+
-+  if ((to == toLim) && (from < fromLim))
-+    return XML_CONVERT_OUTPUT_EXHAUSTED;
-+  else
-+    return res;
- }
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- utf8_toUtf16(const ENCODING *enc,
-              const char **fromP, const char *fromLim,
-              unsigned short **toP, const unsigned short *toLim)
- {
-+  enum XML_Convert_Result res = XML_CONVERT_COMPLETED;
-   unsigned short *to = *toP;
-   const char *from = *fromP;
--  while (from != fromLim && to != toLim) {
-+  while (from < fromLim && to < toLim) {
-     switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) {
-     case BT_LEAD2:
-+      if (fromLim - from < 2) {
-+        res = XML_CONVERT_INPUT_INCOMPLETE;
-+        break;
-+      }
-       *to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f));
-       from += 2;
-       break;
-     case BT_LEAD3:
-+      if (fromLim - from < 3) {
-+        res = XML_CONVERT_INPUT_INCOMPLETE;
-+        break;
-+      }
-       *to++ = (unsigned short)(((from[0] & 0xf) << 12)
-                                | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f));
-       from += 3;
-@@ -358,8 +374,14 @@ utf8_toUtf16(const ENCODING *enc,
-     case BT_LEAD4:
-       {
-         unsigned long n;
--        if (to + 1 == toLim)
-+        if (toLim - to < 2) {
-+          res = XML_CONVERT_OUTPUT_EXHAUSTED;
-           goto after;
-+        }
-+        if (fromLim - from < 4) {
-+          res = XML_CONVERT_INPUT_INCOMPLETE;
-+          goto after;
-+        }
-         n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12)
-             | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f);
-         n -= 0x10000;
-@@ -377,6 +399,7 @@ utf8_toUtf16(const ENCODING *enc,
- after:
-   *fromP = from;
-   *toP = to;
-+  return res;
- }
- 
- #ifdef XML_NS
-@@ -425,7 +448,7 @@ static const struct normal_encoding internal_utf8_encoding = {
-   STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
- };
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- latin1_toUtf8(const ENCODING *enc,
-               const char **fromP, const char *fromLim,
-               char **toP, const char *toLim)
-@@ -433,30 +456,35 @@ latin1_toUtf8(const ENCODING *enc,
-   for (;;) {
-     unsigned char c;
-     if (*fromP == fromLim)
--      break;
-+      return XML_CONVERT_COMPLETED;
-     c = (unsigned char)**fromP;
-     if (c & 0x80) {
-       if (toLim - *toP < 2)
--        break;
-+        return XML_CONVERT_OUTPUT_EXHAUSTED;
-       *(*toP)++ = (char)((c >> 6) | UTF8_cval2);
-       *(*toP)++ = (char)((c & 0x3f) | 0x80);
-       (*fromP)++;
-     }
-     else {
-       if (*toP == toLim)
--        break;
-+        return XML_CONVERT_OUTPUT_EXHAUSTED;
-       *(*toP)++ = *(*fromP)++;
-     }
-   }
- }
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- latin1_toUtf16(const ENCODING *enc,
-                const char **fromP, const char *fromLim,
-                unsigned short **toP, const unsigned short *toLim)
- {
--  while (*fromP != fromLim && *toP != toLim)
-+  while (*fromP < fromLim && *toP < toLim)
-     *(*toP)++ = (unsigned char)*(*fromP)++;
-+
-+  if ((*toP == toLim) && (*fromP < fromLim))
-+    return XML_CONVERT_OUTPUT_EXHAUSTED;
-+  else
-+    return XML_CONVERT_COMPLETED;
- }
- 
- #ifdef XML_NS
-@@ -483,13 +511,18 @@ static const struct normal_encoding latin1_encoding = {
-   STANDARD_VTABLE(sb_)
- };
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- ascii_toUtf8(const ENCODING *enc,
-              const char **fromP, const char *fromLim,
-              char **toP, const char *toLim)
- {
--  while (*fromP != fromLim && *toP != toLim)
-+  while (*fromP < fromLim && *toP < toLim)
-     *(*toP)++ = *(*fromP)++;
-+
-+  if ((*toP == toLim) && (*fromP < fromLim))
-+    return XML_CONVERT_OUTPUT_EXHAUSTED;
-+  else
-+    return XML_CONVERT_COMPLETED;
- }
- 
- #ifdef XML_NS
-@@ -536,13 +569,14 @@ unicode_byte_type(char hi, char lo)
- }
- 
- #define DEFINE_UTF16_TO_UTF8(E) \
--static void  PTRCALL \
-+static enum XML_Convert_Result  PTRCALL \
- E ## toUtf8(const ENCODING *enc, \
-             const char **fromP, const char *fromLim, \
-             char **toP, const char *toLim) \
- { \
--  const char *from; \
--  for (from = *fromP; from != fromLim; from += 2) { \
-+  const char *from = *fromP; \
-+  fromLim = from + (((fromLim - from) >> 1) << 1);  /* shrink to even */ \
-+  for (; from < fromLim; from += 2) { \
-     int plane; \
-     unsigned char lo2; \
-     unsigned char lo = GET_LO(from); \
-@@ -552,7 +586,7 @@ E ## toUtf8(const ENCODING *enc, \
-       if (lo < 0x80) { \
-         if (*toP == toLim) { \
-           *fromP = from; \
--          return; \
-+          return XML_CONVERT_OUTPUT_EXHAUSTED; \
-         } \
-         *(*toP)++ = lo; \
-         break; \
-@@ -562,7 +596,7 @@ E ## toUtf8(const ENCODING *enc, \
-     case 0x4: case 0x5: case 0x6: case 0x7: \
-       if (toLim -  *toP < 2) { \
-         *fromP = from; \
--        return; \
-+        return XML_CONVERT_OUTPUT_EXHAUSTED; \
-       } \
-       *(*toP)++ = ((lo >> 6) | (hi << 2) |  UTF8_cval2); \
-       *(*toP)++ = ((lo & 0x3f) | 0x80); \
-@@ -570,7 +604,7 @@ E ## toUtf8(const ENCODING *enc, \
-     default: \
-       if (toLim -  *toP < 3)  { \
-         *fromP = from; \
--        return; \
-+        return XML_CONVERT_OUTPUT_EXHAUSTED; \
-       } \
-       /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \
-       *(*toP)++ = ((hi >> 4) | UTF8_cval3); \
-@@ -580,7 +614,11 @@ E ## toUtf8(const ENCODING *enc, \
-     case 0xD8: case 0xD9: case 0xDA: case 0xDB: \
-       if (toLim -  *toP < 4) { \
-         *fromP = from; \
--        return; \
-+        return XML_CONVERT_OUTPUT_EXHAUSTED; \
-+      } \
-+      if (fromLim - from < 4) { \
-+        *fromP = from; \
-+        return XML_CONVERT_INPUT_INCOMPLETE; \
-       } \
-       plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \
-       *(*toP)++ = ((plane >> 2) | UTF8_cval4); \
-@@ -596,20 +634,32 @@ E ## toUtf8(const ENCODING *enc, \
-     } \
-   } \
-   *fromP = from; \
-+  if (from < fromLim) \
-+    return XML_CONVERT_INPUT_INCOMPLETE; \
-+  else \
-+    return XML_CONVERT_COMPLETED; \
- }
- 
- #define DEFINE_UTF16_TO_UTF16(E) \
--static void  PTRCALL \
-+static enum XML_Convert_Result  PTRCALL \
- E ## toUtf16(const ENCODING *enc, \
-              const char **fromP, const char *fromLim, \
-              unsigned short **toP, const unsigned short *toLim) \
- { \
-+  enum XML_Convert_Result res = XML_CONVERT_COMPLETED; \
-+  fromLim = *fromP + (((fromLim - *fromP) >> 1) << 1);  /* shrink to even */ \
-   /* Avoid copying first half only of surrogate */ \
-   if (fromLim - *fromP > ((toLim - *toP) << 1) \
--      && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \
-+      && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) { \
-     fromLim -= 2; \
--  for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \
-+    res = XML_CONVERT_INPUT_INCOMPLETE; \
-+  } \
-+  for (; *fromP < fromLim && *toP < toLim; *fromP += 2) \
-     *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \
-+  if ((*toP == toLim) && (*fromP < fromLim)) \
-+    return XML_CONVERT_OUTPUT_EXHAUSTED; \
-+  else \
-+    return res; \
- }
- 
- #define SET2(ptr, ch) \
-@@ -1288,7 +1338,7 @@ unknown_isInvalid(const ENCODING *enc, const char *p)
-   return (c & ~0xFFFF) || checkCharRefNumber(c) < 0;
- }
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- unknown_toUtf8(const ENCODING *enc,
-                const char **fromP, const char *fromLim,
-                char **toP, const char *toLim)
-@@ -1299,21 +1349,21 @@ unknown_toUtf8(const ENCODING *enc,
-     const char *utf8;
-     int n;
-     if (*fromP == fromLim)
--      break;
-+      return XML_CONVERT_COMPLETED;
-     utf8 = uenc->utf8[(unsigned char)**fromP];
-     n = *utf8++;
-     if (n == 0) {
-       int c = uenc->convert(uenc->userData, *fromP);
-       n = XmlUtf8Encode(c, buf);
-       if (n > toLim - *toP)
--        break;
-+        return XML_CONVERT_OUTPUT_EXHAUSTED;
-       utf8 = buf;
-       *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
-                  - (BT_LEAD2 - 2));
-     }
-     else {
-       if (n > toLim - *toP)
--        break;
-+        return XML_CONVERT_OUTPUT_EXHAUSTED;
-       (*fromP)++;
-     }
-     do {
-@@ -1322,13 +1372,13 @@ unknown_toUtf8(const ENCODING *enc,
-   }
- }
- 
--static void PTRCALL
-+static enum XML_Convert_Result PTRCALL
- unknown_toUtf16(const ENCODING *enc,
-                 const char **fromP, const char *fromLim,
-                 unsigned short **toP, const unsigned short *toLim)
- {
-   const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc);
--  while (*fromP != fromLim && *toP != toLim) {
-+  while (*fromP < fromLim && *toP < toLim) {
-     unsigned short c = uenc->utf16[(unsigned char)**fromP];
-     if (c == 0) {
-       c = (unsigned short)
-@@ -1340,6 +1390,11 @@ unknown_toUtf16(const ENCODING *enc,
-       (*fromP)++;
-     *(*toP)++ = c;
-   }
-+
-+  if ((*toP == toLim) && (*fromP < fromLim))
-+    return XML_CONVERT_OUTPUT_EXHAUSTED;
-+  else
-+    return XML_CONVERT_COMPLETED;
- }
- 
- ENCODING *
-@@ -1503,7 +1558,7 @@ initScan(const ENCODING * const *encodingTable,
- {
-   const ENCODING **encPtr;
- 
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   encPtr = enc->encPtr;
-   if (ptr + 1 == end) {
-diff --git a/expat/lib/xmltok.h b/expat/lib/xmltok.h
-index ca867aa..752007e 100644
---- a/expat/lib/xmltok.h
-+++ b/lib/xmltok.h
-@@ -130,6 +130,12 @@ typedef int (PTRCALL *SCANNER)(const ENCODING *,
-                                const char *,
-                                const char **);
- 
-+enum XML_Convert_Result {
-+  XML_CONVERT_COMPLETED = 0,
-+  XML_CONVERT_INPUT_INCOMPLETE = 1,
-+  XML_CONVERT_OUTPUT_EXHAUSTED = 2  /* and therefore potentially input remaining as well */
-+};
-+
- struct encoding {
-   SCANNER scanners[XML_N_STATES];
-   SCANNER literalScanners[XML_N_LITERAL_TYPES];
-@@ -158,12 +164,12 @@ struct encoding {
-                             const char *ptr,
-                             const char *end,
-                             const char **badPtr);
--  void (PTRCALL *utf8Convert)(const ENCODING *enc,
-+  enum XML_Convert_Result (PTRCALL *utf8Convert)(const ENCODING *enc,
-                               const char **fromP,
-                               const char *fromLim,
-                               char **toP,
-                               const char *toLim);
--  void (PTRCALL *utf16Convert)(const ENCODING *enc,
-+  enum XML_Convert_Result (PTRCALL *utf16Convert)(const ENCODING *enc,
-                                const char **fromP,
-                                const char *fromLim,
-                                unsigned short **toP,
-diff --git a/expat/lib/xmltok_impl.c b/expat/lib/xmltok_impl.c
-index 9c2895b..6c5a3ba 100644
---- a/expat/lib/xmltok_impl.c
-+++ b/lib/xmltok_impl.c
-@@ -93,13 +93,13 @@ static int PTRCALL
- PREFIX(scanComment)(const ENCODING *enc, const char *ptr,
-                     const char *end, const char **nextTokPtr)
- {
--  if (ptr != end) {
-+  if (ptr < end) {
-     if (!CHAR_MATCHES(enc, ptr, ASCII_MINUS)) {
-       *nextTokPtr = ptr;
-       return XML_TOK_INVALID;
-     }
-     ptr += MINBPC(enc);
--    while (ptr != end) {
-+    while (ptr < end) {
-       switch (BYTE_TYPE(enc, ptr)) {
-       INVALID_CASES(ptr, nextTokPtr)
-       case BT_MINUS:
-@@ -147,7 +147,7 @@ PREFIX(scanDecl)(const ENCODING *enc, const char *ptr,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     case BT_PERCNT:
-       if (ptr + MINBPC(enc) == end)
-@@ -233,7 +233,7 @@ PREFIX(scanPi)(const ENCODING *enc, const char *ptr,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_S: case BT_CR: case BT_LF:
-@@ -242,7 +242,7 @@ PREFIX(scanPi)(const ENCODING *enc, const char *ptr,
-         return XML_TOK_INVALID;
-       }
-       ptr += MINBPC(enc);
--      while (ptr != end) {
-+      while (ptr < end) {
-         switch (BYTE_TYPE(enc, ptr)) {
-         INVALID_CASES(ptr, nextTokPtr)
-         case BT_QUEST:
-@@ -305,7 +305,7 @@ static int PTRCALL
- PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr,
-                         const char *end, const char **nextTokPtr)
- {
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   if (MINBPC(enc) > 1) {
-     size_t n = end - ptr;
-@@ -348,7 +348,7 @@ PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr,
-     ptr += MINBPC(enc);
-     break;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
- #define LEAD_CASE(n) \
-     case BT_LEAD ## n: \
-@@ -391,11 +391,11 @@ PREFIX(scanEndTag)(const ENCODING *enc, const char *ptr,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_S: case BT_CR: case BT_LF:
--      for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
-+      for (ptr += MINBPC(enc); ptr < end; ptr += MINBPC(enc)) {
-         switch (BYTE_TYPE(enc, ptr)) {
-         case BT_S: case BT_CR: case BT_LF:
-           break;
-@@ -432,7 +432,7 @@ static int PTRCALL
- PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr,
-                        const char *end, const char **nextTokPtr)
- {
--  if (ptr != end) {
-+  if (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     case BT_DIGIT:
-     case BT_HEX:
-@@ -441,7 +441,7 @@ PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr,
-       *nextTokPtr = ptr;
-       return XML_TOK_INVALID;
-     }
--    for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
-+    for (ptr += MINBPC(enc); ptr < end; ptr += MINBPC(enc)) {
-       switch (BYTE_TYPE(enc, ptr)) {
-       case BT_DIGIT:
-       case BT_HEX:
-@@ -464,7 +464,7 @@ static int PTRCALL
- PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr,
-                     const char *end, const char **nextTokPtr)
- {
--  if (ptr != end) {
-+  if (ptr < end) {
-     if (CHAR_MATCHES(enc, ptr, ASCII_x))
-       return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
-     switch (BYTE_TYPE(enc, ptr)) {
-@@ -474,7 +474,7 @@ PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr,
-       *nextTokPtr = ptr;
-       return XML_TOK_INVALID;
-     }
--    for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
-+    for (ptr += MINBPC(enc); ptr < end; ptr += MINBPC(enc)) {
-       switch (BYTE_TYPE(enc, ptr)) {
-       case BT_DIGIT:
-         break;
-@@ -506,7 +506,7 @@ PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_SEMI:
-@@ -529,7 +529,7 @@ PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
- #ifdef XML_NS
-   int hadColon = 0;
- #endif
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
- #ifdef XML_NS
-@@ -716,7 +716,7 @@ PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
-   hadColon = 0;
- #endif
-   /* we have a start-tag */
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
- #ifdef XML_NS
-@@ -740,7 +740,7 @@ PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
-     case BT_S: case BT_CR: case BT_LF:
-       {
-         ptr += MINBPC(enc);
--        while (ptr != end) {
-+        while (ptr < end) {
-           switch (BYTE_TYPE(enc, ptr)) {
-           CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
-           case BT_GT:
-@@ -785,7 +785,7 @@ static int PTRCALL
- PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
-                    const char **nextTokPtr)
- {
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   if (MINBPC(enc) > 1) {
-     size_t n = end - ptr;
-@@ -832,7 +832,7 @@ PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
-     ptr += MINBPC(enc);
-     break;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
- #define LEAD_CASE(n) \
-     case BT_LEAD ## n: \
-@@ -895,7 +895,7 @@ PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_SEMI:
-@@ -921,7 +921,7 @@ PREFIX(scanPoundName)(const ENCODING *enc, const char *ptr, const char *end,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_CR: case BT_LF: case BT_S:
-@@ -941,7 +941,7 @@ PREFIX(scanLit)(int open, const ENCODING *enc,
-                 const char *ptr, const char *end,
-                 const char **nextTokPtr)
- {
--  while (ptr != end) {
-+  while (ptr < end) {
-     int t = BYTE_TYPE(enc, ptr);
-     switch (t) {
-     INVALID_CASES(ptr, nextTokPtr)
-@@ -973,7 +973,7 @@ PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
-                   const char **nextTokPtr)
- {
-   int tok;
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   if (MINBPC(enc) > 1) {
-     size_t n = end - ptr;
-@@ -1141,7 +1141,7 @@ PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
-     *nextTokPtr = ptr;
-     return XML_TOK_INVALID;
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
-     case BT_GT: case BT_RPAR: case BT_COMMA:
-@@ -1204,10 +1204,10 @@ PREFIX(attributeValueTok)(const ENCODING *enc, const char *ptr,
-                           const char *end, const char **nextTokPtr)
- {
-   const char *start;
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   start = ptr;
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
- #define LEAD_CASE(n) \
-     case BT_LEAD ## n: ptr += n; break;
-@@ -1262,10 +1262,10 @@ PREFIX(entityValueTok)(const ENCODING *enc, const char *ptr,
-                        const char *end, const char **nextTokPtr)
- {
-   const char *start;
--  if (ptr == end)
-+  if (ptr >= end)
-     return XML_TOK_NONE;
-   start = ptr;
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
- #define LEAD_CASE(n) \
-     case BT_LEAD ## n: ptr += n; break;
-@@ -1326,7 +1326,7 @@ PREFIX(ignoreSectionTok)(const ENCODING *enc, const char *ptr,
-       end = ptr + n;
-     }
-   }
--  while (ptr != end) {
-+  while (ptr < end) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     INVALID_CASES(ptr, nextTokPtr)
-     case BT_LT:
-@@ -1373,7 +1373,7 @@ PREFIX(isPublicId)(const ENCODING *enc, const char *ptr, const char *end,
- {
-   ptr += MINBPC(enc);
-   end -= MINBPC(enc);
--  for (; ptr != end; ptr += MINBPC(enc)) {
-+  for (; ptr < end; ptr += MINBPC(enc)) {
-     switch (BYTE_TYPE(enc, ptr)) {
-     case BT_DIGIT:
-     case BT_HEX:
-@@ -1760,7 +1760,7 @@ PREFIX(updatePosition)(const ENCODING *enc,
-     case BT_CR:
-       pos->lineNumber++;
-       ptr += MINBPC(enc);
--      if (ptr != end && BYTE_TYPE(enc, ptr) == BT_LF)
-+      if (ptr < end && BYTE_TYPE(enc, ptr) == BT_LF)
-         ptr += MINBPC(enc);
-       pos->columnNumber = (XML_Size)-1;
-       break;
--- 
-2.8.2
-
-- 
2.8.3

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