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00025 #include "asterisk.h"
00026
00027 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 40722 $")
00028
00029 #include <stdio.h>
00030 #include <stdlib.h>
00031 #include <string.h>
00032 #include <sys/types.h>
00033
00034 #include "asterisk/module.h"
00035 #include "asterisk/channel.h"
00036 #include "asterisk/pbx.h"
00037 #include "asterisk/logger.h"
00038 #include "asterisk/utils.h"
00039 #include "asterisk/app.h"
00040
00041 static int sha1(struct ast_channel *chan, char *cmd, char *data,
00042 char *buf, size_t len)
00043 {
00044 *buf = '\0';
00045
00046 if (ast_strlen_zero(data)) {
00047 ast_log(LOG_WARNING, "Syntax: SHA1(<data>) - missing argument!\n");
00048 return -1;
00049 }
00050
00051 if (len >= 41)
00052 ast_sha1_hash(buf, data);
00053 else {
00054 ast_log(LOG_ERROR,
00055 "Insufficient space to produce SHA1 hash result (%d < 41)\n",
00056 (int) len);
00057 }
00058
00059 return 0;
00060 }
00061
00062 static struct ast_custom_function sha1_function = {
00063 .name = "SHA1",
00064 .synopsis = "Computes a SHA1 digest",
00065 .syntax = "SHA1(<data>)",
00066 .read = sha1,
00067 .desc = "Generate a SHA1 digest via the SHA1 algorythm.\n"
00068 " Example: Set(sha1hash=${SHA1(junky)})\n"
00069 " Sets the asterisk variable sha1hash to the string '60fa5675b9303eb62f99a9cd47f9f5837d18f9a0'\n"
00070 " which is known as his hash\n",
00071 };
00072
00073 static int unload_module(void)
00074 {
00075 return ast_custom_function_unregister(&sha1_function);
00076 }
00077
00078 static int load_module(void)
00079 {
00080 return ast_custom_function_register(&sha1_function);
00081 }
00082
00083 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "SHA-1 computation dialplan function");