1 files changed, 326 insertions, 0 deletions
diff --git a/Build/source/libs/poppler/poppler-0.24.4/goo/gmem.cc b/Build/source/libs/poppler/poppler-0.24.4/goo/gmem.cc
new file mode 100644
index 00000000000..c1c607ac3f3
--- /dev/null
+++ b/Build/source/libs/poppler/poppler-0.24.4/goo/gmem.cc
@@ -0,0 +1,326 @@
+/*
+ * gmem.c
+ *
+ * Memory routines with out-of-memory checking.
+ *
+ * Copyright 1996-2003 Glyph & Cog, LLC
+ */
+
+//========================================================================
+//
+// Modified under the Poppler project - http://poppler.freedesktop.org
+//
+// All changes made under the Poppler project to this file are licensed
+// under GPL version 2 or later
+//
+// Copyright (C) 2005 Takashi Iwai <tiwai@suse.de>
+// Copyright (C) 2007-2010, 2012 Albert Astals Cid <aacid@kde.org>
+// Copyright (C) 2008 Jonathan Kew <jonathan_kew@sil.org>
+//
+// To see a description of the changes please see the Changelog file that
+// came with your tarball or type make ChangeLog if you are building from git
+//
+//========================================================================
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <limits.h>
+#include "gmem.h"
+
+#ifdef DEBUG_MEM
+
+typedef struct _GMemHdr {
+  unsigned int magic;
+  int size;
+  int index;
+  struct _GMemHdr *next, *prev;
+} GMemHdr;
+
+#define gMemHdrSize ((sizeof(GMemHdr) + 7) & ~7)
+#define gMemTrlSize (sizeof(long))
+
+#define gMemMagic 0xabcd9999
+
+#if gmemTrlSize==8
+#define gMemDeadVal 0xdeadbeefdeadbeefUL
+#else
+#define gMemDeadVal 0xdeadbeefUL
+#endif
+
+/* round data size so trailer will be aligned */
+#define gMemDataSize(size) \
+  ((((size) + gMemTrlSize - 1) / gMemTrlSize) * gMemTrlSize)
+
+static GMemHdr *gMemHead = NULL;
+static GMemHdr *gMemTail = NULL;
+
+static int gMemIndex = 0;
+static int gMemAlloc = 0;
+static int gMemInUse = 0;
+
+#endif /* DEBUG_MEM */
+
+inline static void *gmalloc(size_t size, bool checkoverflow) {
+#ifdef DEBUG_MEM
+  int size1;
+  char *mem;
+  GMemHdr *hdr;
+  void *data;
+  unsigned long *trl, *p;
+
+  if (size == 0) {
+    return NULL;
+  }
+  size1 = gMemDataSize(size);
+  if (!(mem = (char *)malloc(size1 + gMemHdrSize + gMemTrlSize))) {
+    fprintf(stderr, "Out of memory\n");
+    if (checkoverflow) return NULL;
+    else exit(1);
+  }
+  hdr = (GMemHdr *)mem;
+  data = (void *)(mem + gMemHdrSize);
+  trl = (unsigned long *)(mem + gMemHdrSize + size1);
+  hdr->magic = gMemMagic;
+  hdr->size = size;
+  hdr->index = gMemIndex++;
+  if (gMemTail) {
+    gMemTail->next = hdr;
+    hdr->prev = gMemTail;
+    gMemTail = hdr;
+  } else {
+    hdr->prev = NULL;
+    gMemHead = gMemTail = hdr;
+  }
+  hdr->next = NULL;
+  ++gMemAlloc;
+  gMemInUse += size;
+  for (p = (unsigned long *)data; p <= trl; ++p) {
+    *p = gMemDeadVal;
+  }
+  return data;
+#else
+  void *p;
+
+  if (size == 0) {
+    return NULL;
+  }
+  if (!(p = malloc(size))) {
+    fprintf(stderr, "Out of memory\n");
+    if (checkoverflow) return NULL;
+    else exit(1);
+  }
+  return p;
+#endif
+}
+
+void *gmalloc(size_t size) {
+  return gmalloc(size, false);
+}
+
+void *gmalloc_checkoverflow(size_t size) {
+  return gmalloc(size, true);
+}
+
+inline static void *grealloc(void *p, size_t size, bool checkoverflow) {
+#ifdef DEBUG_MEM
+  GMemHdr *hdr;
+  void *q;
+  int oldSize;
+
+  if (size == 0) {
+    if (p) {
+      gfree(p);
+    }
+    return NULL;
+  }
+  if (p) {
+    hdr = (GMemHdr *)((char *)p - gMemHdrSize);
+    oldSize = hdr->size;
+    q = gmalloc(size, checkoverflow);
+    memcpy(q, p, size < oldSize ? size : oldSize);
+    gfree(p);
+  } else {
+    q = gmalloc(size, checkoverflow);
+  }
+  return q;
+#else
+  void *q;
+
+  if (size == 0) {
+    if (p) {
+      free(p);
+    }
+    return NULL;
+  }
+  if (p) {
+    q = realloc(p, size);
+  } else {
+    q = malloc(size);
+  }
+  if (!q) {
+    fprintf(stderr, "Out of memory\n");
+    if (checkoverflow) return NULL;
+    else exit(1);
+  }
+  return q;
+#endif
+}
+
+void *grealloc(void *p, size_t size) {
+  return grealloc(p, size, false);
+}
+
+void *grealloc_checkoverflow(void *p, size_t size) {
+  return grealloc(p, size, true);
+}
+
+inline static void *gmallocn(int nObjs, int objSize, bool checkoverflow) {
+  int n;
+
+  if (nObjs == 0) {
+    return NULL;
+  }
+  n = nObjs * objSize;
+  if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) {
+    fprintf(stderr, "Bogus memory allocation size\n");
+    if (checkoverflow) return NULL;
+    else exit(1);
+  }
+  return gmalloc(n, checkoverflow);
+}
+
+void *gmallocn(int nObjs, int objSize) {
+  return gmallocn(nObjs, objSize, false);
+}
+
+void *gmallocn_checkoverflow(int nObjs, int objSize) {
+  return gmallocn(nObjs, objSize, true);
+}
+
+inline static void *gmallocn3(int a, int b, int c, bool checkoverflow) {
+  int n = a * b;
+  if (b <= 0 || a < 0 || a >= INT_MAX / b) {
+    fprintf(stderr, "Bogus memory allocation size\n");
+    if (checkoverflow) return NULL;
+    else exit(1);
+  }
+  return gmallocn(n, c, checkoverflow);
+}
+
+void *gmallocn3(int a, int b, int c) {
+  return gmallocn3(a, b, c, false);
+}
+
+void *gmallocn3_checkoverflow(int a, int b, int c) {
+  return gmallocn3(a, b, c, true);
+}
+
+inline static void *greallocn(void *p, int nObjs, int objSize, bool checkoverflow) {
+  int n;
+
+  if (nObjs == 0) {
+    if (p) {
+      gfree(p);
+    }
+    return NULL;
+  }
+  n = nObjs * objSize;
+  if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) {
+    fprintf(stderr, "Bogus memory allocation size\n");
+    if (checkoverflow) {
+      gfree(p);
+      return NULL;
+    } else {
+      exit(1);
+    }
+  }
+  return grealloc(p, n, checkoverflow);
+}
+
+void *greallocn(void *p, int nObjs, int objSize) {
+  return greallocn(p, nObjs, objSize, false);
+}
+
+void *greallocn_checkoverflow(void *p, int nObjs, int objSize) {
+  return greallocn(p, nObjs, objSize, true);
+}
+
+void gfree(void *p) {
+#ifdef DEBUG_MEM
+  int size;
+  GMemHdr *hdr;
+  unsigned long *trl, *clr;
+
+  if (p) {
+    hdr = (GMemHdr *)((char *)p - gMemHdrSize);
+    if (hdr->magic == gMemMagic &&
+	((hdr->prev == NULL) == (hdr == gMemHead)) &&
+	((hdr->next == NULL) == (hdr == gMemTail))) {
+      if (hdr->prev) {
+	hdr->prev->next = hdr->next;
+      } else {
+	gMemHead = hdr->next;
+      }
+      if (hdr->next) {
+	hdr->next->prev = hdr->prev;
+      } else {
+	gMemTail = hdr->prev;
+      }
+      --gMemAlloc;
+      gMemInUse -= hdr->size;
+      size = gMemDataSize(hdr->size);
+      trl = (unsigned long *)((char *)hdr + gMemHdrSize + size);
+      if (*trl != gMemDeadVal) {
+	fprintf(stderr, "Overwrite past end of block %d at address %p\n",
+		hdr->index, p);
+      }
+      for (clr = (unsigned long *)hdr; clr <= trl; ++clr) {
+	*clr = gMemDeadVal;
+      }
+      free(hdr);
+    } else {
+      fprintf(stderr, "Attempted to free bad address %p\n", p);
+    }
+  }
+#else
+  if (p) {
+    free(p);
+  }
+#endif
+}
+
+#ifdef DEBUG_MEM
+void gMemReport(FILE *f) {
+  GMemHdr *p;
+
+  fprintf(f, "%d memory allocations in all\n", gMemIndex);
+  if (gMemAlloc > 0) {
+    fprintf(f, "%d memory blocks left allocated:\n", gMemAlloc);
+    fprintf(f, " index     size\n");
+    fprintf(f, "-------- --------\n");
+    for (p = gMemHead; p; p = p->next) {
+      fprintf(f, "%8d %8d\n", p->index, p->size);
+    }
+  } else {
+    fprintf(f, "No memory blocks left allocated\n");
+  }
+}
+#endif
+
+char *copyString(const char *s) {
+  char *s1;
+
+  s1 = (char *)gmalloc(strlen(s) + 1);
+  strcpy(s1, s);
+  return s1;
+}
+
+char *gstrndup(const char *s, size_t n) {
+  char *s1 = (char*)gmalloc(n + 1); /* cannot return NULL for size > 0 */
+  s1[n] = '\0';
+  memcpy(s1, s, n);
+  return s1;
+}