diff options
Diffstat (limited to 'src/miregex.c')
| -rwxr-xr-x | src/miregex.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/miregex.c b/src/miregex.c new file mode 100755 index 00000000..ead53088 --- /dev/null +++ b/src/miregex.c @@ -0,0 +1,243 @@ +/* + * aul + * + * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved. + * + * Contact: Jayoun Lee <airjany@samsung.com>, Sewook Park <sewook7.park@samsung.com>, Jaeho Lee <jaeho81.lee@samsung.com> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + + +#include "miregex.h" +#include "simple_util.h" +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <dirent.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#define MIREGEX_DIR RW_DATA_PREFIX"/miregex" +#define ONELINE_BUF 1024 + +typedef struct miregex_file_info_t { + char *regex; + char *desc; +} miregex_file_info; + +regex_tbl *miregex_tbl = NULL; +static time_t miregex_mtime = 0; + +static void __free_miregex_file_info(miregex_file_info *info); +static miregex_file_info *__get_miregex_file_info(const char *path); +static int __add_miregex(const char *name, const char *regex, const char *desc); +static int __need_update_miregex_tbl(); +static void __miregex_free_regex_table(); + + + +static void __free_miregex_file_info(miregex_file_info *info) +{ + if (info == NULL) + return; + + if (info->regex != NULL) + free(info->regex); + if (info->desc != NULL) + free(info->desc); + + free(info); +} + +static miregex_file_info *__get_miregex_file_info(const char *path) +{ + FILE *f; + char oneline[ONELINE_BUF]; + miregex_file_info *info; + + f = fopen(path, "r"); + if (f == NULL) { + _E("miregex file %s is cannot open", path); + return NULL; + } + + info = (miregex_file_info *) malloc(sizeof(miregex_file_info)); + if(info == NULL) { + fclose(f); + return NULL; + } + + info->regex = NULL; + info->desc = NULL; + + while ((info->regex == NULL) || (info->desc == NULL)) { + memset(oneline, 0, ONELINE_BUF); + if (fgets(oneline, ONELINE_BUF, f) == NULL) + break; + + oneline[strlen(oneline) - 1] = 0; + + if (info->regex == NULL) + info->regex = strdup(oneline); + else + info->desc = strdup(oneline); + } + + /*_D("conf file process done : info->regex = %s, + info->desc = %s",info->regex, info->desc);*/ + fclose(f); + + return info; +} + +static int __add_miregex(const char *name, const char *regex, const char *desc) +{ + regex_tbl *tbl = NULL; + int error; + int ret; + char *msg = NULL; + + if (regex == NULL) + return -1; + + tbl = (regex_tbl *) malloc(sizeof(regex_tbl)); + if (NULL == tbl) { + _E("Malloc failed!"); + return -1; + } + + if ((error = regcomp(&(tbl->regex_preg), regex, + REG_EXTENDED | REG_NOSUB)) != 0) { + ret = regerror(error, &(tbl->regex_preg), NULL, 0); + msg = (char *)malloc(sizeof(char) * ret); + if (NULL == msg) { + _E("Malloc failed!"); + if (tbl) { + free(tbl); + tbl = NULL; + } + return -1; + } + regerror(error, &(tbl->regex_preg), msg, ret); + _E("regex compile error - %s\n", msg); + if (msg) { + free(msg); + msg = NULL; + } + if (tbl) { + free(tbl); + tbl = NULL; + } + return -1; + } + + tbl->mimetype = strdup(name); + tbl->regex = strdup(regex); + if (desc != NULL) + tbl->desc = strdup(desc); + tbl->next = miregex_tbl; + miregex_tbl = tbl; + + /*_D("added regex - %d %s %s##",getpid(),tbl->mimetype,tbl->regex);*/ + + return 0; +} + +static int __need_update_miregex_tbl() +{ + struct stat st; + + if (stat(MIREGEX_DIR, &st) < 0) { + _E("stat error - check miregex dir - %s", MIREGEX_DIR); + return 1; + } + + if (st.st_mtime != miregex_mtime) { + miregex_mtime = st.st_mtime; + return 1; + } + + if (miregex_tbl == NULL) { + miregex_mtime = st.st_mtime; + return 1; + } + + return 0; +} + +static void __miregex_free_regex_table() +{ + regex_tbl *tbl; + + while (miregex_tbl) { + if (miregex_tbl->mimetype != NULL) + free(miregex_tbl->mimetype); + if (miregex_tbl->regex != NULL) + free(miregex_tbl->regex); + if (miregex_tbl->desc != NULL) + free(miregex_tbl->desc); + regfree(&(miregex_tbl->regex_preg)); + + tbl = miregex_tbl; + miregex_tbl = miregex_tbl->next; + free(tbl); + } + + miregex_tbl = NULL; +} + +regex_tbl *miregex_get_regex_table() +{ + DIR *dp; + struct dirent *dentry; + char buf[MAX_LOCAL_BUFSZ]; + miregex_file_info *info; + + if (!__need_update_miregex_tbl()) + return miregex_tbl; + + _D("*** reload miregex tbl ***"); + + if (miregex_tbl != NULL) + __miregex_free_regex_table(); + + dp = opendir(MIREGEX_DIR); + if (dp == NULL) + return NULL; + + while ((dentry = readdir(dp)) != NULL) { + if (dentry->d_name[0] == '.') + continue; + + snprintf(buf, sizeof(buf), "%s/%s", MIREGEX_DIR, + dentry->d_name); + info = __get_miregex_file_info(buf); + if (info == NULL) + continue; + + if (__add_miregex(dentry->d_name, + info->regex, info->desc) < 0) { + /* TODO : invalid regular expression - will be removed*/ + } + + __free_miregex_file_info(info); + } + + closedir(dp); + + return miregex_tbl; +} + |