diff options
Diffstat (limited to 'libs/zlib/src/zutil.c')
-rw-r--r-- | libs/zlib/src/zutil.c | 375 |
1 files changed, 189 insertions, 186 deletions
diff --git a/libs/zlib/src/zutil.c b/libs/zlib/src/zutil.c index f0fef231f2..ac3c9871ba 100644 --- a/libs/zlib/src/zutil.c +++ b/libs/zlib/src/zutil.c @@ -14,105 +14,106 @@ struct internal_state {int dummy;}; /* for buggy compilers */ #endif -z_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) */ -""}; - +z_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; + 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 -#if defined(STDC) || defined(Z_HAVE_STDARG_H) -# 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; + 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 + #if defined(STDC) || defined(Z_HAVE_STDARG_H) + # 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 @@ -122,11 +123,11 @@ uLong ZEXPORT zlibCompileFlags() # endif int ZLIB_INTERNAL z_verbose = verbose; -void ZLIB_INTERNAL z_error (m) - char *m; +void ZLIB_INTERNAL z_error(m) +char *m; { - fprintf(stderr, "%s\n", m); - exit(1); + fprintf(stderr, "%s\n", m); + exit(1); } #endif @@ -134,53 +135,53 @@ void ZLIB_INTERNAL z_error (m) * uncompress() */ const char * ZEXPORT zError(err) - int err; +int err; { - return ERR_MSG(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; +/* 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 ZLIB_INTERNAL zmemcpy(dest, source, len) - Bytef* dest; - const Bytef* source; - uInt len; +Bytef* dest; +const Bytef* source; +uInt len; { - if (len == 0) return; - do { - *dest++ = *source++; /* ??? to be unrolled */ - } while (--len != 0); + if (len == 0) return; + do { + *dest++ = *source++; /* ??? to be unrolled */ + } while (--len != 0); } int ZLIB_INTERNAL zmemcmp(s1, s2, len) - const Bytef* s1; - const Bytef* s2; - uInt len; +const Bytef* s1; +const Bytef* s2; +uInt len; { - uInt j; + uInt j; - for (j = 0; j < len; j++) { - if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; - } - return 0; + for (j = 0; j < len; j++) { + if (s1[j] != s2[j]) return 2 * (s1[j] > s2[j]) - 1; + } + return 0; } void ZLIB_INTERNAL zmemzero(dest, len) - Bytef* dest; - uInt len; +Bytef* dest; +uInt len; { - if (len == 0) return; - do { - *dest++ = 0; /* ??? to be unrolled */ - } while (--len != 0); + if (len == 0) return; + do { + *dest++ = 0; /* ??? to be unrolled */ + } while (--len != 0); } #endif @@ -200,13 +201,14 @@ void ZLIB_INTERNAL zmemzero(dest, len) */ #define MAX_PTR 10 -/* 10*64K = 640K */ + /* 10*64K = 640K */ local int next_ptr = 0; -typedef struct ptr_table_s { - voidpf org_ptr; - voidpf new_ptr; +typedef struct ptr_table_s +{ + voidpf org_ptr; + voidpf new_ptr; } ptr_table; local ptr_table table[MAX_PTR]; @@ -217,50 +219,51 @@ local ptr_table table[MAX_PTR]; * a protected system like OS/2. Use Microsoft C instead. */ -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size) +voidpf ZLIB_INTERNAL 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; + 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 ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) +void ZLIB_INTERNAL 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"); + 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__ */ @@ -276,16 +279,16 @@ void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) # define _hfree hfree #endif -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size) +voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, uInt items, uInt size) { - if (opaque) opaque = 0; /* to make compiler happy */ - return _halloc((long)items, size); + if (opaque) opaque = 0; /* to make compiler happy */ + return _halloc((long)items, size); } -void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) +void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr) { - if (opaque) opaque = 0; /* to make compiler happy */ - _hfree(ptr); + if (opaque) opaque = 0; /* to make compiler happy */ + _hfree(ptr); } #endif /* M_I86 */ @@ -301,22 +304,22 @@ extern voidp calloc OF((uInt items, uInt size)); extern void free OF((voidpf ptr)); #endif -voidpf ZLIB_INTERNAL zcalloc (opaque, items, size) - voidpf opaque; - unsigned items; - unsigned size; +voidpf ZLIB_INTERNAL 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); + if (opaque) items += size - size; /* make compiler happy */ + return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : + (voidpf)calloc(items, size); } -void ZLIB_INTERNAL zcfree (opaque, ptr) - voidpf opaque; - voidpf ptr; +void ZLIB_INTERNAL zcfree(opaque, ptr) +voidpf opaque; +voidpf ptr; { - free(ptr); - if (opaque) return; /* make compiler happy */ + free(ptr); + if (opaque) return; /* make compiler happy */ } #endif /* MY_ZCALLOC */ |