+++ /dev/null
-/*
- +----------------------------------------------------------------------+
- | APC |
- +----------------------------------------------------------------------+
- | Copyright (c) 2008 The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Daniel Cowgill <dcowgill@communityconnect.com> |
- | George Schlossnagle <george@omniti.com> |
- | Rasmus Lerdorf <rasmus@php.net> |
- | Arun C. Murthy <arunc@yahoo-inc.com> |
- | Gopal Vijayaraghavan <gopalv@yahoo-inc.com> |
- +----------------------------------------------------------------------+
-
- This software was contributed to PHP by Community Connect Inc. in 2002
- and revised in 2005 by Yahoo! Inc. to add support for PHP 5.1.
- Future revisions and derivatives of this source code must acknowledge
- Community Connect Inc. as the original contributor of this module by
- leaving this note intact in the source code.
-
- All other licensing and usage conditions are those of the PHP Group.
-
- */
-
-/* $Id: apc.c,v 3.18.2.3 2008/05/13 15:48:48 gopalv Exp $ */
-
-#include "apc.h"
-#include <regex.h> /* for POSIX regular expressions */
-#include "php.h"
-
-#define NELEMS(a) (sizeof(a)/sizeof((a)[0]))
-
-/* {{{ memory allocation wrappers */
-
-void* apc_emalloc(size_t n)
-{
- void* p = malloc(n);
- if (p == NULL) {
- apc_eprint("apc_emalloc: malloc failed to allocate %u bytes:", n);
- }
- return p;
-}
-
-void* apc_erealloc(void* p, size_t n)
-{
- p = realloc(p, n);
- if (p == NULL) {
- apc_eprint("apc_erealloc: realloc failed to allocate %u bytes:", n);
- }
- return p;
-}
-
-void apc_efree(void* p)
-{
- if (p == NULL) {
- apc_eprint("apc_efree: attempt to free null pointer");
- }
- free(p);
-}
-
-char* apc_estrdup(const char* s)
-{
- int len;
- char* dup;
-
- if (s == NULL) {
- return NULL;
- }
- len = strlen(s);
- dup = (char*) malloc(len+1);
- if (dup == NULL) {
- apc_eprint("apc_estrdup: malloc failed to allocate %u bytes:", len+1);
- }
- memcpy(dup, s, len);
- dup[len] = '\0';
- return dup;
-}
-
-void* apc_xstrdup(const char* s, apc_malloc_t f)
-{
- return s != NULL ? apc_xmemcpy(s, strlen(s)+1, f) : NULL;
-}
-
-void* apc_xmemcpy(const void* p, size_t n, apc_malloc_t f)
-{
- void* q;
-
- if (p != NULL && (q = f(n)) != NULL) {
- memcpy(q, p, n);
- return q;
- }
- return NULL;
-}
-
-/* }}} */
-
-/* {{{ console display functions */
-
-static void my_log(int level, const char* fmt, va_list args)
-{
- static const char* level_strings[] = {
- "apc-debug",
- "apc-notice",
- "apc-warning",
- "apc-error"
- };
- static const int num_levels = NELEMS(level_strings);
-
- time_t now;
- char* buf; /* for ctime */
-
- fflush(stdout);
-
- if (level < 0)
- level = 0;
- else if (level >= num_levels)
- level = num_levels-1;
-
- now = time(0);
- buf = ctime(&now); /* TODO: replace with reentrant impl */
- buf[24] = '\0';
-
- fprintf(stderr, "[%s] [%s] ", buf, level_strings[level]);
- vfprintf(stderr, fmt, args);
-
- if (fmt[0] != '\0' && fmt[strlen(fmt)-1] == ':') {
- fprintf(stderr, " %s", strerror(errno));
- }
- fprintf(stderr, "\n");
-
- if (level == APC_ERROR) {
- exit(2);
- }
-}
-
-void apc_log(int level, const char* fmt, ...)
-{
- va_list args;
- va_start(args, fmt);
- my_log(level, fmt, args);
- va_end(args);
-}
-
-void apc_eprint(const char* fmt, ...)
-{
- va_list args;
- va_start(args, fmt);
- my_log(APC_ERROR, fmt, args);
- va_end(args);
-}
-
-void apc_wprint(const char* fmt, ...)
-{
- va_list args;
- va_start(args, fmt);
- my_log(APC_WARNING, fmt, args);
- va_end(args);
-}
-
-void apc_nprint(const char* fmt, ...)
-{
- va_list args;
- va_start(args, fmt);
- my_log(APC_NOTICE, fmt, args);
- va_end(args);
-}
-
-void apc_dprint(const char* fmt, ...)
-{
-#ifdef APC_DEBUG
- va_list args;
- va_start(args, fmt);
- my_log(APC_DBG, fmt, args);
- va_end(args);
-#endif
-}
-
-/* }}} */
-
-/* {{{ string and text manipulation */
-
-char* apc_append(const char* s, const char* t)
-{
- int slen;
- int tlen;
- char* p;
-
- slen = strlen(s);
- tlen = strlen(t);
-
- p = (char*) apc_emalloc((slen + tlen + 1) * sizeof(char));
- memcpy(p, s, slen);
- memcpy(p + slen, t, tlen + 1);
-
- return p;
-}
-
-char* apc_substr(const char* s, int start, int length)
-{
- char* substr;
- int src_len = strlen(s);
-
- /* bring start into range */
- if (start < 0) {
- start = 0;
- }
- else if (start >= src_len) {
- start = src_len - 1;
- }
-
- /* bring length into range */
- if (length < 0 || src_len - start < length) {
- length = src_len - start;
- }
-
- /* create the substring */
- substr = apc_xmemcpy(s + start, length + 1, apc_emalloc);
- substr[length] = '\0';
- return substr;
-}
-
-char** apc_tokenize(const char* s, char delim)
-{
- char** tokens; /* array of tokens, NULL terminated */
- int size; /* size of tokens array */
- int n; /* index of next token in tokens array */
- int cur; /* current position in input string */
- int end; /* final legal position in input string */
- int next; /* position of next delimiter in input */
-
- if (!s) {
- return NULL;
- }
-
- size = 2;
- n = 0;
- cur = 0;
- end = strlen(s) - 1;
-
- tokens = (char**) apc_emalloc(size * sizeof(char*));
- tokens[n] = NULL;
-
- while (cur <= end) {
- /* search for the next delimiter */
- char* p = strchr(s + cur, delim);
- next = p ? p-s : end+1;
-
- /* resize token array if necessary */
- if (n == size-1) {
- size *= 2;
- tokens = (char**) apc_erealloc(tokens, size * sizeof(char*));
- }
-
- /* save the current token */
- tokens[n] = apc_substr(s, cur, next-cur);
-
- tokens[++n] = NULL;
- cur = next + 1;
- }
-
- return tokens;
-}
-
-/* }}} */
-
-/* similar to php_stream_stat_path */
-#ifdef ZEND_ENGINE_2
-#define APC_URL_STAT(wrapper, filename, pstatbuf) \
- ((wrapper)->wops->url_stat((wrapper), (filename), PHP_STREAM_URL_STAT_QUIET, (pstatbuf), NULL TSRMLS_CC))
-#else
-#define APC_URL_STAT(wrapper, filename, pstatbuf) \
- ((wrapper)->wops->url_stat((wrapper), (filename), (pstatbuf) TSRMLS_CC))
-#endif
-
-int apc_search_paths(const char* filename, const char* path, apc_fileinfo_t* fileinfo)
-{
- char** paths;
- char *exec_fname;
- int exec_fname_length;
- int found = 0;
- int i;
- php_stream_wrapper *wrapper = NULL;
- char *path_for_open = NULL;
-
- TSRMLS_FETCH();
-
- assert(filename && fileinfo);
-
-
- wrapper = php_stream_locate_url_wrapper(filename, &path_for_open, 0 TSRMLS_CC);
-
- if(!wrapper || !wrapper->wops || !wrapper->wops->url_stat) {
- return -1;
- }
-
-#ifdef ZEND_ENGINE_2
- if(wrapper != &php_plain_files_wrapper) {
- if(APC_URL_STAT(wrapper, path_for_open, &fileinfo->st_buf) == 0) {
- strncpy(fileinfo->fullpath, path_for_open, MAXPATHLEN);
- return 0;
- }
- return -1; /* cannot stat */
- }
-#endif
-
- if (IS_ABSOLUTE_PATH(path_for_open, strlen(path_for_open)) &&
- APC_URL_STAT(wrapper, path_for_open, &fileinfo->st_buf) == 0) {
- strncpy(fileinfo->fullpath, path_for_open, MAXPATHLEN);
- return 0;
- }
-
- paths = apc_tokenize(path, DEFAULT_DIR_SEPARATOR);
- if (!paths)
- return -1;
-
- /* for each directory in paths, look for filename inside */
- for (i = 0; paths[i]; i++) {
- snprintf(fileinfo->fullpath, sizeof(fileinfo->fullpath), "%s%c%s", paths[i], DEFAULT_SLASH, path_for_open);
- if (APC_URL_STAT(wrapper, fileinfo->fullpath, &fileinfo->st_buf) == 0) {
- found = 1;
- break;
- }
- }
-
- /* check in path of the calling scripts' current working directory */
- /* modified from main/streams/plain_wrapper.c */
- if(!found && zend_is_executing(TSRMLS_C)) {
- exec_fname = zend_get_executed_filename(TSRMLS_C);
- exec_fname_length = strlen(exec_fname);
- while((--exec_fname_length >= 0) && !IS_SLASH(exec_fname[exec_fname_length]));
- if((exec_fname && exec_fname[0] != '[') && exec_fname_length > 0) {
- /* not: [no active file] or no path */
- memcpy(fileinfo->fullpath, exec_fname, exec_fname_length);
- fileinfo->fullpath[exec_fname_length] = DEFAULT_SLASH;
- strlcpy(fileinfo->fullpath +exec_fname_length +1, path_for_open,sizeof(fileinfo->fullpath)-exec_fname_length-1);
- /* apc_wprint("filename: %s, exec_fname: %s, fileinfo->fullpath: %s", path_for_open, exec_fname, fileinfo->fullpath); */
- if (APC_URL_STAT(wrapper, fileinfo->fullpath, &fileinfo->st_buf) == 0) {
- found = 1;
- }
- }
- }
-
- /* free the value returned by apc_tokenize */
- for (i = 0; paths[i]; i++) {
- apc_efree(paths[i]);
- }
- apc_efree(paths);
-
- return found ? 0 : -1;
-}
-
-/* }}} */
-
-/* {{{ regular expression wrapper functions */
-
-typedef struct {
- regex_t *reg;
- unsigned char type;
-} apc_regex;
-
-void* apc_regex_compile_array(char* patterns[])
-{
- apc_regex** regs;
- int npat;
- int i;
-
- if (!patterns)
- return NULL;
-
- /* count the number of patterns in patterns */
- for (npat = 0; patterns[npat] != NULL; npat++) {}
-
- if (npat == 0)
- return NULL;
-
- /* allocate the array of compiled expressions */
- regs = (apc_regex**) apc_emalloc(sizeof(apc_regex*) * (npat + 1));
- for (i = 0; i <= npat; i++) {
- regs[i] = (apc_regex *) apc_emalloc(sizeof(apc_regex));
- regs[i]->reg = NULL;
- regs[i]->type = APC_NEGATIVE_MATCH;
- }
-
- /* compile the expressions */
- for (i = 0; i < npat; i++) {
- char *pattern = patterns[i];
- if(pattern[0]=='+') { regs[i]->type = APC_POSITIVE_MATCH; pattern = patterns[i]+sizeof(char); }
- else if(pattern[0]=='-') { regs[i]->type = APC_NEGATIVE_MATCH; pattern = patterns[i]+sizeof(char); }
-
- regs[i]->reg = (regex_t*) apc_emalloc(sizeof(regex_t));
-
- if (regcomp(regs[i]->reg, pattern, REG_EXTENDED | REG_NOSUB) != 0) {
- apc_wprint("apc_regex_compile_array: invalid expression '%s'",
- pattern);
-
- apc_regex_destroy_array(regs);
-
- return NULL;
- }
- }
-
- return (void*) regs;
-}
-
-void apc_regex_destroy_array(void* p)
-{
- if (p != NULL) {
- apc_regex** regs = (apc_regex**) p;
- int i;
-
- for (i = 0; regs[i]->reg != NULL; i++) {
- regfree(regs[i]->reg);
- apc_efree(regs[i]->reg);
- apc_efree(regs[i]);
- }
- apc_efree(regs);
- }
-}
-
-int apc_regex_match_array(void* p, const char* input)
-{
- apc_regex** regs;
- int i;
-
- if (!p)
- return 0;
-
- regs = (apc_regex**) p;
- for (i = 0; regs[i]->reg != NULL; i++)
- if (regexec(regs[i]->reg, input, 0, NULL, 0) == 0)
- return (int)(regs[i]->type);
-
- return 0;
-}
-
-/* }}} */
-
-/* {{{ crc32 implementation */
-
-/* this table was generated by crc32gen() */
-static unsigned int crc32tab[] = {
- /* 0 */ 0x00000000, 0x3b83984b, 0x77073096, 0x4c84a8dd,
- /* 4 */ 0xee0e612c, 0xd58df967, 0x990951ba, 0xa28ac9f1,
- /* 8 */ 0x076dc419, 0x3cee5c52, 0x706af48f, 0x4be96cc4,
- /* 12 */ 0xe963a535, 0xd2e03d7e, 0x9e6495a3, 0xa5e70de8,
- /* 16 */ 0x0edb8832, 0x35581079, 0x79dcb8a4, 0x425f20ef,
- /* 20 */ 0xe0d5e91e, 0xdb567155, 0x97d2d988, 0xac5141c3,
- /* 24 */ 0x09b64c2b, 0x3235d460, 0x7eb17cbd, 0x4532e4f6,
- /* 28 */ 0xe7b82d07, 0xdc3bb54c, 0x90bf1d91, 0xab3c85da,
- /* 32 */ 0x1db71064, 0x2634882f, 0x6ab020f2, 0x5133b8b9,
- /* 36 */ 0xf3b97148, 0xc83ae903, 0x84be41de, 0xbf3dd995,
- /* 40 */ 0x1adad47d, 0x21594c36, 0x6ddde4eb, 0x565e7ca0,
- /* 44 */ 0xf4d4b551, 0xcf572d1a, 0x83d385c7, 0xb8501d8c,
- /* 48 */ 0x136c9856, 0x28ef001d, 0x646ba8c0, 0x5fe8308b,
- /* 52 */ 0xfd62f97a, 0xc6e16131, 0x8a65c9ec, 0xb1e651a7,
- /* 56 */ 0x14015c4f, 0x2f82c404, 0x63066cd9, 0x5885f492,
- /* 60 */ 0xfa0f3d63, 0xc18ca528, 0x8d080df5, 0xb68b95be,
- /* 64 */ 0x3b6e20c8, 0x00edb883, 0x4c69105e, 0x77ea8815,
- /* 68 */ 0xd56041e4, 0xeee3d9af, 0xa2677172, 0x99e4e939,
- /* 72 */ 0x3c03e4d1, 0x07807c9a, 0x4b04d447, 0x70874c0c,
- /* 76 */ 0xd20d85fd, 0xe98e1db6, 0xa50ab56b, 0x9e892d20,
- /* 80 */ 0x35b5a8fa, 0x0e3630b1, 0x42b2986c, 0x79310027,
- /* 84 */ 0xdbbbc9d6, 0xe038519d, 0xacbcf940, 0x973f610b,
- /* 88 */ 0x32d86ce3, 0x095bf4a8, 0x45df5c75, 0x7e5cc43e,
- /* 92 */ 0xdcd60dcf, 0xe7559584, 0xabd13d59, 0x9052a512,
- /* 96 */ 0x26d930ac, 0x1d5aa8e7, 0x51de003a, 0x6a5d9871,
- /* 100 */ 0xc8d75180, 0xf354c9cb, 0xbfd06116, 0x8453f95d,
- /* 104 */ 0x21b4f4b5, 0x1a376cfe, 0x56b3c423, 0x6d305c68,
- /* 108 */ 0xcfba9599, 0xf4390dd2, 0xb8bda50f, 0x833e3d44,
- /* 112 */ 0x2802b89e, 0x138120d5, 0x5f058808, 0x64861043,
- /* 116 */ 0xc60cd9b2, 0xfd8f41f9, 0xb10be924, 0x8a88716f,
- /* 120 */ 0x2f6f7c87, 0x14ece4cc, 0x58684c11, 0x63ebd45a,
- /* 124 */ 0xc1611dab, 0xfae285e0, 0xb6662d3d, 0x8de5b576,
- /* 128 */ 0x76dc4190, 0x4d5fd9db, 0x01db7106, 0x3a58e94d,
- /* 132 */ 0x98d220bc, 0xa351b8f7, 0xefd5102a, 0xd4568861,
- /* 136 */ 0x71b18589, 0x4a321dc2, 0x06b6b51f, 0x3d352d54,
- /* 140 */ 0x9fbfe4a5, 0xa43c7cee, 0xe8b8d433, 0xd33b4c78,
- /* 144 */ 0x7807c9a2, 0x438451e9, 0x0f00f934, 0x3483617f,
- /* 148 */ 0x9609a88e, 0xad8a30c5, 0xe10e9818, 0xda8d0053,
- /* 152 */ 0x7f6a0dbb, 0x44e995f0, 0x086d3d2d, 0x33eea566,
- /* 156 */ 0x91646c97, 0xaae7f4dc, 0xe6635c01, 0xdde0c44a,
- /* 160 */ 0x6b6b51f4, 0x50e8c9bf, 0x1c6c6162, 0x27eff929,
- /* 164 */ 0x856530d8, 0xbee6a893, 0xf262004e, 0xc9e19805,
- /* 168 */ 0x6c0695ed, 0x57850da6, 0x1b01a57b, 0x20823d30,
- /* 172 */ 0x8208f4c1, 0xb98b6c8a, 0xf50fc457, 0xce8c5c1c,
- /* 176 */ 0x65b0d9c6, 0x5e33418d, 0x12b7e950, 0x2934711b,
- /* 180 */ 0x8bbeb8ea, 0xb03d20a1, 0xfcb9887c, 0xc73a1037,
- /* 184 */ 0x62dd1ddf, 0x595e8594, 0x15da2d49, 0x2e59b502,
- /* 188 */ 0x8cd37cf3, 0xb750e4b8, 0xfbd44c65, 0xc057d42e,
- /* 192 */ 0x4db26158, 0x7631f913, 0x3ab551ce, 0x0136c985,
- /* 196 */ 0xa3bc0074, 0x983f983f, 0xd4bb30e2, 0xef38a8a9,
- /* 200 */ 0x4adfa541, 0x715c3d0a, 0x3dd895d7, 0x065b0d9c,
- /* 204 */ 0xa4d1c46d, 0x9f525c26, 0xd3d6f4fb, 0xe8556cb0,
- /* 208 */ 0x4369e96a, 0x78ea7121, 0x346ed9fc, 0x0fed41b7,
- /* 212 */ 0xad678846, 0x96e4100d, 0xda60b8d0, 0xe1e3209b,
- /* 216 */ 0x44042d73, 0x7f87b538, 0x33031de5, 0x088085ae,
- /* 220 */ 0xaa0a4c5f, 0x9189d414, 0xdd0d7cc9, 0xe68ee482,
- /* 224 */ 0x5005713c, 0x6b86e977, 0x270241aa, 0x1c81d9e1,
- /* 228 */ 0xbe0b1010, 0x8588885b, 0xc90c2086, 0xf28fb8cd,
- /* 232 */ 0x5768b525, 0x6ceb2d6e, 0x206f85b3, 0x1bec1df8,
- /* 236 */ 0xb966d409, 0x82e54c42, 0xce61e49f, 0xf5e27cd4,
- /* 240 */ 0x5edef90e, 0x655d6145, 0x29d9c998, 0x125a51d3,
- /* 244 */ 0xb0d09822, 0x8b530069, 0xc7d7a8b4, 0xfc5430ff,
- /* 248 */ 0x59b33d17, 0x6230a55c, 0x2eb40d81, 0x153795ca,
- /* 252 */ 0xb7bd5c3b, 0x8c3ec470, 0xc0ba6cad, 0xfb39f4e6,
-};
-
-unsigned int apc_crc32(const char* buf, int len)
-{
- int i;
- int k;
- unsigned int crc;
-
- /* preconditioning */
- crc = 0xFFFFFFFF;
-
- for (i = 0; i < len; i++) {
- k = (crc ^ buf[i]) & 0x000000FF;
- crc = ((crc >> 8) & 0x00FFFFFF) ^ crc32tab[k];
- }
-
- /* postconditioning */
- return ~crc;
-}
-
-/* crc32gen: generate the nth (0..255) crc32 table value */
-#if 0
-static unsigned long crc32gen(int n)
-{
- int i;
- unsigned long crc;
-
- crc = n;
- for (i = 8; i >= 0; i--) {
- if (crc & 1) {
- crc = (crc >> 1) ^ 0xEDB88320;
- }
- else {
- crc >>= 1;
- }
- }
- return crc;
-}
-#endif
-
-/* }}} */
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: expandtab sw=4 ts=4 sts=4 fdm=marker
- * vim<600: expandtab sw=4 ts=4 sts=4
- */
projects / php5-apc.git / blobdiff