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00025 #include <stdlib.h>
00026 #include <string.h>
00027 #include <sys/types.h>
00028
00029 #include "asterisk.h"
00030
00031
00032
00033 #include "asterisk/channel.h"
00034 #include "asterisk/pbx.h"
00035 #include "asterisk/logger.h"
00036 #include "asterisk/utils.h"
00037 #include "asterisk/app.h"
00038
00039 static char *builtin_function_md5(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00040 {
00041 char md5[33];
00042
00043 if (ast_strlen_zero(data)) {
00044 ast_log(LOG_WARNING, "Syntax: MD5(<data>) - missing argument!\n");
00045 return NULL;
00046 }
00047
00048 ast_md5_hash(md5, data);
00049 ast_copy_string(buf, md5, len);
00050
00051 return buf;
00052 }
00053
00054 static char *builtin_function_checkmd5(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00055 {
00056 int argc;
00057 char *argv[2];
00058 char *args;
00059 char newmd5[33];
00060
00061 if (!data || ast_strlen_zero(data)) {
00062 ast_log(LOG_WARNING, "Syntax: CHECK_MD5(<digest>,<data>) - missing argument!\n");
00063 return NULL;
00064 }
00065
00066 args = ast_strdupa(data);
00067 argc = ast_app_separate_args(args, '|', argv, sizeof(argv) / sizeof(argv[0]));
00068
00069 if (argc < 2) {
00070 ast_log(LOG_WARNING, "Syntax: CHECK_MD5(<digest>,<data>) - missing argument!\n");
00071 return NULL;
00072 }
00073
00074 ast_md5_hash(newmd5, argv[1]);
00075
00076 if (!strcasecmp(newmd5, argv[0]))
00077 ast_copy_string(buf, "1", len);
00078 else
00079 ast_copy_string(buf, "0", len);
00080
00081 return buf;
00082 }
00083
00084 #ifndef BUILTIN_FUNC
00085 static
00086 #endif
00087 struct ast_custom_function md5_function = {
00088 .name = "MD5",
00089 .synopsis = "Computes an MD5 digest",
00090 .syntax = "MD5(<data>)",
00091 .read = builtin_function_md5,
00092 };
00093
00094 #ifndef BUILTIN_FUNC
00095 static
00096 #endif
00097 struct ast_custom_function checkmd5_function = {
00098 .name = "CHECK_MD5",
00099 .synopsis = "Checks an MD5 digest",
00100 .desc = "Returns 1 on a match, 0 otherwise\n",
00101 .syntax = "CHECK_MD5(<digest>,<data>)",
00102 .read = builtin_function_checkmd5,
00103 };