-/* zutil.c -- target dependent utility functions for the compression library\r
- * Copyright (C) 1995-2005 Jean-loup Gailly.\r
- * For conditions of distribution and use, see copyright notice in zlib.h\r
- */\r
-\r
-/* @(#) $Id$ */\r
-\r
-#include "zutil.h"\r
-\r
-#ifndef NO_DUMMY_DECL\r
-struct internal_state {int dummy;}; /* for buggy compilers */\r
-#endif\r
-\r
-const char * const z_errmsg[10] = {\r
-"need dictionary", /* Z_NEED_DICT 2 */\r
-"stream end", /* Z_STREAM_END 1 */\r
-"", /* Z_OK 0 */\r
-"file error", /* Z_ERRNO (-1) */\r
-"stream error", /* Z_STREAM_ERROR (-2) */\r
-"data error", /* Z_DATA_ERROR (-3) */\r
-"insufficient memory", /* Z_MEM_ERROR (-4) */\r
-"buffer error", /* Z_BUF_ERROR (-5) */\r
-"incompatible version",/* Z_VERSION_ERROR (-6) */\r
-""};\r
-\r
-\r
-const char * ZEXPORT zlibVersion()\r
-{\r
- return ZLIB_VERSION;\r
-}\r
-\r
-uLong ZEXPORT zlibCompileFlags()\r
-{\r
- uLong flags;\r
-\r
- flags = 0;\r
- switch (sizeof(uInt)) {\r
- case 2: break;\r
- case 4: flags += 1; break;\r
- case 8: flags += 2; break;\r
- default: flags += 3;\r
- }\r
- switch (sizeof(uLong)) {\r
- case 2: break;\r
- case 4: flags += 1 << 2; break;\r
- case 8: flags += 2 << 2; break;\r
- default: flags += 3 << 2;\r
- }\r
- switch (sizeof(voidpf)) {\r
- case 2: break;\r
- case 4: flags += 1 << 4; break;\r
- case 8: flags += 2 << 4; break;\r
- default: flags += 3 << 4;\r
- }\r
- switch (sizeof(z_off_t)) {\r
- case 2: break;\r
- case 4: flags += 1 << 6; break;\r
- case 8: flags += 2 << 6; break;\r
- default: flags += 3 << 6;\r
- }\r
-#ifdef DEBUG\r
- flags += 1 << 8;\r
-#endif\r
-#if defined(ASMV) || defined(ASMINF)\r
- flags += 1 << 9;\r
-#endif\r
-#ifdef ZLIB_WINAPI\r
- flags += 1 << 10;\r
-#endif\r
-#ifdef BUILDFIXED\r
- flags += 1 << 12;\r
-#endif\r
-#ifdef DYNAMIC_CRC_TABLE\r
- flags += 1 << 13;\r
-#endif\r
-#ifdef NO_GZCOMPRESS\r
- flags += 1L << 16;\r
-#endif\r
-#ifdef NO_GZIP\r
- flags += 1L << 17;\r
-#endif\r
-#ifdef PKZIP_BUG_WORKAROUND\r
- flags += 1L << 20;\r
-#endif\r
-#ifdef FASTEST\r
- flags += 1L << 21;\r
-#endif\r
-#ifdef STDC\r
-# ifdef NO_vsnprintf\r
- flags += 1L << 25;\r
-# ifdef HAS_vsprintf_void\r
- flags += 1L << 26;\r
-# endif\r
-# else\r
-# ifdef HAS_vsnprintf_void\r
- flags += 1L << 26;\r
-# endif\r
-# endif\r
-#else\r
- flags += 1L << 24;\r
-# ifdef NO_snprintf\r
- flags += 1L << 25;\r
-# ifdef HAS_sprintf_void\r
- flags += 1L << 26;\r
-# endif\r
-# else\r
-# ifdef HAS_snprintf_void\r
- flags += 1L << 26;\r
-# endif\r
-# endif\r
-#endif\r
- return flags;\r
-}\r
-\r
-#ifdef DEBUG\r
-\r
-# ifndef verbose\r
-# define verbose 0\r
-# endif\r
-int z_verbose = verbose;\r
-\r
-void z_error (m)\r
- char *m;\r
-{\r
- fprintf(stderr, "%s\n", m);\r
- exit(1);\r
-}\r
-#endif\r
-\r
-/* exported to allow conversion of error code to string for compress() and\r
- * uncompress()\r
- */\r
-const char * ZEXPORT zError(err)\r
- int err;\r
-{\r
- return ERR_MSG(err);\r
-}\r
-\r
-#if defined(_WIN32_WCE)\r
- /* The Microsoft C Run-Time Library for Windows CE doesn't have\r
- * errno. We define it as a global variable to simplify porting.\r
- * Its value is always 0 and should not be used.\r
- */\r
- int errno = 0;\r
-#endif\r
-\r
-#ifndef HAVE_MEMCPY\r
-\r
-void zmemcpy(dest, source, len)\r
- Bytef* dest;\r
- const Bytef* source;\r
- uInt len;\r
-{\r
- if (len == 0) return;\r
- do {\r
- *dest++ = *source++; /* ??? to be unrolled */\r
- } while (--len != 0);\r
-}\r
-\r
-int zmemcmp(s1, s2, len)\r
- const Bytef* s1;\r
- const Bytef* s2;\r
- uInt len;\r
-{\r
- uInt j;\r
-\r
- for (j = 0; j < len; j++) {\r
- if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;\r
- }\r
- return 0;\r
-}\r
-\r
-void zmemzero(dest, len)\r
- Bytef* dest;\r
- uInt len;\r
-{\r
- if (len == 0) return;\r
- do {\r
- *dest++ = 0; /* ??? to be unrolled */\r
- } while (--len != 0);\r
-}\r
-#endif\r
-\r
-\r
-#ifdef SYS16BIT\r
-\r
-#ifdef __TURBOC__\r
-/* Turbo C in 16-bit mode */\r
-\r
-# define MY_ZCALLOC\r
-\r
-/* Turbo C malloc() does not allow dynamic allocation of 64K bytes\r
- * and farmalloc(64K) returns a pointer with an offset of 8, so we\r
- * must fix the pointer. Warning: the pointer must be put back to its\r
- * original form in order to free it, use zcfree().\r
- */\r
-\r
-#define MAX_PTR 10\r
-/* 10*64K = 640K */\r
-\r
-local int next_ptr = 0;\r
-\r
-typedef struct ptr_table_s {\r
- voidpf org_ptr;\r
- voidpf new_ptr;\r
-} ptr_table;\r
-\r
-local ptr_table table[MAX_PTR];\r
-/* This table is used to remember the original form of pointers\r
- * to large buffers (64K). Such pointers are normalized with a zero offset.\r
- * Since MSDOS is not a preemptive multitasking OS, this table is not\r
- * protected from concurrent access. This hack doesn't work anyway on\r
- * a protected system like OS/2. Use Microsoft C instead.\r
- */\r
-\r
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)\r
-{\r
- voidpf buf = opaque; /* just to make some compilers happy */\r
- ulg bsize = (ulg)items*size;\r
-\r
- /* If we allocate less than 65520 bytes, we assume that farmalloc\r
- * will return a usable pointer which doesn't have to be normalized.\r
- */\r
- if (bsize < 65520L) {\r
- buf = farmalloc(bsize);\r
- if (*(ush*)&buf != 0) return buf;\r
- } else {\r
- buf = farmalloc(bsize + 16L);\r
- }\r
- if (buf == NULL || next_ptr >= MAX_PTR) return NULL;\r
- table[next_ptr].org_ptr = buf;\r
-\r
- /* Normalize the pointer to seg:0 */\r
- *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;\r
- *(ush*)&buf = 0;\r
- table[next_ptr++].new_ptr = buf;\r
- return buf;\r
-}\r
-\r
-void zcfree (voidpf opaque, voidpf ptr)\r
-{\r
- int n;\r
- if (*(ush*)&ptr != 0) { /* object < 64K */\r
- farfree(ptr);\r
- return;\r
- }\r
- /* Find the original pointer */\r
- for (n = 0; n < next_ptr; n++) {\r
- if (ptr != table[n].new_ptr) continue;\r
-\r
- farfree(table[n].org_ptr);\r
- while (++n < next_ptr) {\r
- table[n-1] = table[n];\r
- }\r
- next_ptr--;\r
- return;\r
- }\r
- ptr = opaque; /* just to make some compilers happy */\r
- Assert(0, "zcfree: ptr not found");\r
-}\r
-\r
-#endif /* __TURBOC__ */\r
-\r
-\r
-#ifdef M_I86\r
-/* Microsoft C in 16-bit mode */\r
-\r
-# define MY_ZCALLOC\r
-\r
-#if (!defined(_MSC_VER) || (_MSC_VER <= 600))\r
-# define _halloc halloc\r
-# define _hfree hfree\r
-#endif\r
-\r
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)\r
-{\r
- if (opaque) opaque = 0; /* to make compiler happy */\r
- return _halloc((long)items, size);\r
-}\r
-\r
-void zcfree (voidpf opaque, voidpf ptr)\r
-{\r
- if (opaque) opaque = 0; /* to make compiler happy */\r
- _hfree(ptr);\r
-}\r
-\r
-#endif /* M_I86 */\r
-\r
-#endif /* SYS16BIT */\r
-\r
-\r
-#ifndef MY_ZCALLOC /* Any system without a special alloc function */\r
-\r
-#ifndef STDC\r
-extern voidp malloc OF((uInt size));\r
-extern voidp calloc OF((uInt items, uInt size));\r
-extern void free OF((voidpf ptr));\r
-#endif\r
-\r
-voidpf zcalloc (opaque, items, size)\r
- voidpf opaque;\r
- unsigned items;\r
- unsigned size;\r
-{\r
- if (opaque) items += size - size; /* make compiler happy */\r
- return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :\r
- (voidpf)calloc(items, size);\r
-}\r
-\r
-void zcfree (opaque, ptr)\r
- voidpf opaque;\r
- voidpf ptr;\r
-{\r
- free(ptr);\r
- if (opaque) return; /* make compiler happy */\r
-}\r
-\r
-#endif /* MY_ZCALLOC */\r
+/* zutil.c -- target dependent utility functions for the compression library
+ * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+
+#ifndef NO_DUMMY_DECL
+struct internal_state {int dummy;}; /* for buggy compilers */
+#endif
+
+const char * const z_errmsg[10] = {
+"need dictionary", /* Z_NEED_DICT 2 */
+"stream end", /* Z_STREAM_END 1 */
+"", /* Z_OK 0 */
+"file error", /* Z_ERRNO (-1) */
+"stream error", /* Z_STREAM_ERROR (-2) */
+"data error", /* Z_DATA_ERROR (-3) */
+"insufficient memory", /* Z_MEM_ERROR (-4) */
+"buffer error", /* Z_BUF_ERROR (-5) */
+"incompatible version",/* Z_VERSION_ERROR (-6) */
+""};
+
+
+const char * ZEXPORT zlibVersion()
+{
+ return ZLIB_VERSION;
+}
+
+uLong ZEXPORT zlibCompileFlags()
+{
+ uLong flags;
+
+ flags = 0;
+ switch (sizeof(uInt)) {
+ case 2: break;
+ case 4: flags += 1; break;
+ case 8: flags += 2; break;
+ default: flags += 3;
+ }
+ switch (sizeof(uLong)) {
+ case 2: break;
+ case 4: flags += 1 << 2; break;
+ case 8: flags += 2 << 2; break;
+ default: flags += 3 << 2;
+ }
+ switch (sizeof(voidpf)) {
+ case 2: break;
+ case 4: flags += 1 << 4; break;
+ case 8: flags += 2 << 4; break;
+ default: flags += 3 << 4;
+ }
+ switch (sizeof(z_off_t)) {
+ case 2: break;
+ case 4: flags += 1 << 6; break;
+ case 8: flags += 2 << 6; break;
+ default: flags += 3 << 6;
+ }
+#ifdef DEBUG
+ flags += 1 << 8;
+#endif
+#if defined(ASMV) || defined(ASMINF)
+ flags += 1 << 9;
+#endif
+#ifdef ZLIB_WINAPI
+ flags += 1 << 10;
+#endif
+#ifdef BUILDFIXED
+ flags += 1 << 12;
+#endif
+#ifdef DYNAMIC_CRC_TABLE
+ flags += 1 << 13;
+#endif
+#ifdef NO_GZCOMPRESS
+ flags += 1L << 16;
+#endif
+#ifdef NO_GZIP
+ flags += 1L << 17;
+#endif
+#ifdef PKZIP_BUG_WORKAROUND
+ flags += 1L << 20;
+#endif
+#ifdef FASTEST
+ flags += 1L << 21;
+#endif
+#ifdef STDC
+# ifdef NO_vsnprintf
+ flags += 1L << 25;
+# ifdef HAS_vsprintf_void
+ flags += 1L << 26;
+# endif
+# else
+# ifdef HAS_vsnprintf_void
+ flags += 1L << 26;
+# endif
+# endif
+#else
+ flags += 1L << 24;
+# ifdef NO_snprintf
+ flags += 1L << 25;
+# ifdef HAS_sprintf_void
+ flags += 1L << 26;
+# endif
+# else
+# ifdef HAS_snprintf_void
+ flags += 1L << 26;
+# endif
+# endif
+#endif
+ return flags;
+}
+
+#ifdef DEBUG
+
+# ifndef verbose
+# define verbose 0
+# endif
+int z_verbose = verbose;
+
+void z_error (m)
+ char *m;
+{
+ fprintf(stderr, "%s\n", m);
+ exit(1);
+}
+#endif
+
+/* exported to allow conversion of error code to string for compress() and
+ * uncompress()
+ */
+const char * ZEXPORT zError(err)
+ int err;
+{
+ return ERR_MSG(err);
+}
+
+#if defined(_WIN32_WCE)
+ /* The Microsoft C Run-Time Library for Windows CE doesn't have
+ * errno. We define it as a global variable to simplify porting.
+ * Its value is always 0 and should not be used.
+ */
+ int errno = 0;
+#endif
+
+#ifndef HAVE_MEMCPY
+
+void zmemcpy(dest, source, len)
+ Bytef* dest;
+ const Bytef* source;
+ uInt len;
+{
+ if (len == 0) return;
+ do {
+ *dest++ = *source++; /* ??? to be unrolled */
+ } while (--len != 0);
+}
+
+int zmemcmp(s1, s2, len)
+ const Bytef* s1;
+ const Bytef* s2;
+ uInt len;
+{
+ uInt j;
+
+ for (j = 0; j < len; j++) {
+ if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
+ }
+ return 0;
+}
+
+void zmemzero(dest, len)
+ Bytef* dest;
+ uInt len;
+{
+ if (len == 0) return;
+ do {
+ *dest++ = 0; /* ??? to be unrolled */
+ } while (--len != 0);
+}
+#endif
+
+
+#ifdef SYS16BIT
+
+#ifdef __TURBOC__
+/* Turbo C in 16-bit mode */
+
+# define MY_ZCALLOC
+
+/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
+ * and farmalloc(64K) returns a pointer with an offset of 8, so we
+ * must fix the pointer. Warning: the pointer must be put back to its
+ * original form in order to free it, use zcfree().
+ */
+
+#define MAX_PTR 10
+/* 10*64K = 640K */
+
+local int next_ptr = 0;
+
+typedef struct ptr_table_s {
+ voidpf org_ptr;
+ voidpf new_ptr;
+} ptr_table;
+
+local ptr_table table[MAX_PTR];
+/* This table is used to remember the original form of pointers
+ * to large buffers (64K). Such pointers are normalized with a zero offset.
+ * Since MSDOS is not a preemptive multitasking OS, this table is not
+ * protected from concurrent access. This hack doesn't work anyway on
+ * a protected system like OS/2. Use Microsoft C instead.
+ */
+
+voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+ voidpf buf = opaque; /* just to make some compilers happy */
+ ulg bsize = (ulg)items*size;
+
+ /* If we allocate less than 65520 bytes, we assume that farmalloc
+ * will return a usable pointer which doesn't have to be normalized.
+ */
+ if (bsize < 65520L) {
+ buf = farmalloc(bsize);
+ if (*(ush*)&buf != 0) return buf;
+ } else {
+ buf = farmalloc(bsize + 16L);
+ }
+ if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
+ table[next_ptr].org_ptr = buf;
+
+ /* Normalize the pointer to seg:0 */
+ *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
+ *(ush*)&buf = 0;
+ table[next_ptr++].new_ptr = buf;
+ return buf;
+}
+
+void zcfree (voidpf opaque, voidpf ptr)
+{
+ int n;
+ if (*(ush*)&ptr != 0) { /* object < 64K */
+ farfree(ptr);
+ return;
+ }
+ /* Find the original pointer */
+ for (n = 0; n < next_ptr; n++) {
+ if (ptr != table[n].new_ptr) continue;
+
+ farfree(table[n].org_ptr);
+ while (++n < next_ptr) {
+ table[n-1] = table[n];
+ }
+ next_ptr--;
+ return;
+ }
+ ptr = opaque; /* just to make some compilers happy */
+ Assert(0, "zcfree: ptr not found");
+}
+
+#endif /* __TURBOC__ */
+
+
+#ifdef M_I86
+/* Microsoft C in 16-bit mode */
+
+# define MY_ZCALLOC
+
+#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
+# define _halloc halloc
+# define _hfree hfree
+#endif
+
+voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+ if (opaque) opaque = 0; /* to make compiler happy */
+ return _halloc((long)items, size);
+}
+
+void zcfree (voidpf opaque, voidpf ptr)
+{
+ if (opaque) opaque = 0; /* to make compiler happy */
+ _hfree(ptr);
+}
+
+#endif /* M_I86 */
+
+#endif /* SYS16BIT */
+
+
+#ifndef MY_ZCALLOC /* Any system without a special alloc function */
+
+#ifndef STDC
+extern voidp malloc OF((uInt size));
+extern voidp calloc OF((uInt items, uInt size));
+extern void free OF((voidpf ptr));
+#endif
+
+voidpf zcalloc (opaque, items, size)
+ voidpf opaque;
+ unsigned items;
+ unsigned size;
+{
+ if (opaque) items += size - size; /* make compiler happy */
+ return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
+ (voidpf)calloc(items, size);
+}
+
+void zcfree (opaque, ptr)
+ voidpf opaque;
+ voidpf ptr;
+{
+ free(ptr);
+ if (opaque) return; /* make compiler happy */
+}
+
+#endif /* MY_ZCALLOC */
projects / shibboleth / cpp-opensaml.git / blobdiff