Annotation of embedaddon/php/ext/dba/dba_dbm.c, revision 1.1
1.1 ! misho 1: /*
! 2: +----------------------------------------------------------------------+
! 3: | PHP Version 5 |
! 4: +----------------------------------------------------------------------+
! 5: | Copyright (c) 1997-2012 The PHP Group |
! 6: +----------------------------------------------------------------------+
! 7: | This source file is subject to version 3.01 of the PHP license, |
! 8: | that is bundled with this package in the file LICENSE, and is |
! 9: | available through the world-wide-web at the following url: |
! 10: | http://www.php.net/license/3_01.txt |
! 11: | If you did not receive a copy of the PHP license and are unable to |
! 12: | obtain it through the world-wide-web, please send a note to |
! 13: | license@php.net so we can mail you a copy immediately. |
! 14: +----------------------------------------------------------------------+
! 15: | Author: Sascha Schumann <sascha@schumann.cx> |
! 16: +----------------------------------------------------------------------+
! 17: */
! 18:
! 19: /* $Id: dba_dbm.c 321634 2012-01-01 13:15:04Z felipe $ */
! 20:
! 21: #ifdef HAVE_CONFIG_H
! 22: #include "config.h"
! 23: #endif
! 24:
! 25: #include "php.h"
! 26:
! 27: #if DBA_DBM
! 28: #include "php_dbm.h"
! 29:
! 30: #ifdef DBM_INCLUDE_FILE
! 31: #include DBM_INCLUDE_FILE
! 32: #endif
! 33: #if DBA_GDBM
! 34: #include "php_gdbm.h"
! 35: #endif
! 36:
! 37: #include <unistd.h>
! 38: #include <sys/types.h>
! 39: #include <sys/stat.h>
! 40: #include <fcntl.h>
! 41:
! 42: #define DBM_DATA dba_dbm_data *dba = info->dbf
! 43: #define DBM_GKEY datum gkey; gkey.dptr = (char *) key; gkey.dsize = keylen
! 44:
! 45: #define TRUNC_IT(extension, mode) \
! 46: snprintf(buf, MAXPATHLEN, "%s" extension, info->path); \
! 47: buf[MAXPATHLEN-1] = '\0'; \
! 48: if((fd = VCWD_OPEN_MODE(buf, O_CREAT | mode | O_WRONLY, filemode)) == -1) \
! 49: return FAILURE; \
! 50: close(fd);
! 51:
! 52:
! 53: typedef struct {
! 54: datum nextkey;
! 55: } dba_dbm_data;
! 56:
! 57: DBA_OPEN_FUNC(dbm)
! 58: {
! 59: int fd;
! 60: int filemode = 0644;
! 61:
! 62: if(info->argc > 0) {
! 63: convert_to_long_ex(info->argv[0]);
! 64: filemode = Z_LVAL_PP(info->argv[0]);
! 65: }
! 66:
! 67: if(info->mode == DBA_TRUNC) {
! 68: char buf[MAXPATHLEN];
! 69:
! 70: /* dbm/ndbm original */
! 71: TRUNC_IT(".pag", O_TRUNC);
! 72: TRUNC_IT(".dir", O_TRUNC);
! 73: }
! 74:
! 75: if(info->mode == DBA_CREAT) {
! 76: char buf[MAXPATHLEN];
! 77:
! 78: TRUNC_IT(".pag", 0);
! 79: TRUNC_IT(".dir", 0);
! 80: }
! 81:
! 82: if(dbminit((char *) info->path) == -1) {
! 83: return FAILURE;
! 84: }
! 85:
! 86: info->dbf = pemalloc(sizeof(dba_dbm_data), info->flags&DBA_PERSISTENT);
! 87: memset(info->dbf, 0, sizeof(dba_dbm_data));
! 88: return SUCCESS;
! 89: }
! 90:
! 91: DBA_CLOSE_FUNC(dbm)
! 92: {
! 93: pefree(info->dbf, info->flags&DBA_PERSISTENT);
! 94: dbmclose();
! 95: }
! 96:
! 97: DBA_FETCH_FUNC(dbm)
! 98: {
! 99: datum gval;
! 100: char *new = NULL;
! 101:
! 102: DBM_GKEY;
! 103: gval = fetch(gkey);
! 104: if(gval.dptr) {
! 105: if(newlen) *newlen = gval.dsize;
! 106: new = estrndup(gval.dptr, gval.dsize);
! 107: }
! 108: return new;
! 109: }
! 110:
! 111: DBA_UPDATE_FUNC(dbm)
! 112: {
! 113: datum gval;
! 114:
! 115: DBM_GKEY;
! 116:
! 117: if (mode == 1) { /* insert */
! 118: gval = fetch(gkey);
! 119: if(gval.dptr) {
! 120: return FAILURE;
! 121: }
! 122: }
! 123:
! 124: gval.dptr = (char *) val;
! 125: gval.dsize = vallen;
! 126:
! 127: return (store(gkey, gval) == -1 ? FAILURE : SUCCESS);
! 128: }
! 129:
! 130: DBA_EXISTS_FUNC(dbm)
! 131: {
! 132: datum gval;
! 133: DBM_GKEY;
! 134:
! 135: gval = fetch(gkey);
! 136: if(gval.dptr) {
! 137: return SUCCESS;
! 138: }
! 139: return FAILURE;
! 140: }
! 141:
! 142: DBA_DELETE_FUNC(dbm)
! 143: {
! 144: DBM_GKEY;
! 145: return(delete(gkey) == -1 ? FAILURE : SUCCESS);
! 146: }
! 147:
! 148: DBA_FIRSTKEY_FUNC(dbm)
! 149: {
! 150: DBM_DATA;
! 151: datum gkey;
! 152: char *key = NULL;
! 153:
! 154: gkey = firstkey();
! 155: if(gkey.dptr) {
! 156: if(newlen) *newlen = gkey.dsize;
! 157: key = estrndup(gkey.dptr, gkey.dsize);
! 158: dba->nextkey = gkey;
! 159: } else
! 160: dba->nextkey.dptr = NULL;
! 161: return key;
! 162: }
! 163:
! 164: DBA_NEXTKEY_FUNC(dbm)
! 165: {
! 166: DBM_DATA;
! 167: datum gkey;
! 168: char *nkey = NULL;
! 169:
! 170: if(!dba->nextkey.dptr) return NULL;
! 171:
! 172: gkey = nextkey(dba->nextkey);
! 173: if(gkey.dptr) {
! 174: if(newlen) *newlen = gkey.dsize;
! 175: nkey = estrndup(gkey.dptr, gkey.dsize);
! 176: dba->nextkey = gkey;
! 177: } else
! 178: dba->nextkey.dptr = NULL;
! 179: return nkey;
! 180: }
! 181:
! 182: DBA_OPTIMIZE_FUNC(dbm)
! 183: {
! 184: /* dummy */
! 185: return SUCCESS;
! 186: }
! 187:
! 188: DBA_SYNC_FUNC(dbm)
! 189: {
! 190: return SUCCESS;
! 191: }
! 192:
! 193: DBA_INFO_FUNC(dbm)
! 194: {
! 195: #if DBA_GDBM
! 196: if (!strcmp(DBM_VERSION, "GDBM"))
! 197: {
! 198: return dba_info_gdbm(hnd, info TSRMLS_CC);
! 199: }
! 200: #endif
! 201: return estrdup(DBM_VERSION);
! 202: }
! 203:
! 204: #endif
! 205:
! 206: /*
! 207: * Local variables:
! 208: * tab-width: 4
! 209: * c-basic-offset: 4
! 210: * End:
! 211: * vim600: sw=4 ts=4 fdm=marker
! 212: * vim<600: sw=4 ts=4
! 213: */
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