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00027 #include "asterisk.h"
00028
00029 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 89521 $")
00030
00031 #include "asterisk/module.h"
00032 #include "asterisk/pbx.h"
00033
00034 static int sha1(struct ast_channel *chan, const char *cmd, char *data,
00035 char *buf, size_t len)
00036 {
00037 *buf = '\0';
00038
00039 if (ast_strlen_zero(data)) {
00040 ast_log(LOG_WARNING, "Syntax: SHA1(<data>) - missing argument!\n");
00041 return -1;
00042 }
00043
00044 if (len >= 41)
00045 ast_sha1_hash(buf, data);
00046 else {
00047 ast_log(LOG_ERROR,
00048 "Insufficient space to produce SHA1 hash result (%d < 41)\n",
00049 (int) len);
00050 }
00051
00052 return 0;
00053 }
00054
00055 static struct ast_custom_function sha1_function = {
00056 .name = "SHA1",
00057 .synopsis = "Computes a SHA1 digest",
00058 .syntax = "SHA1(<data>)",
00059 .read = sha1,
00060 .desc = "Generate a SHA1 digest via the SHA1 algorythm.\n"
00061 " Example: Set(sha1hash=${SHA1(junky)})\n"
00062 " Sets the asterisk variable sha1hash to the string '60fa5675b9303eb62f99a9cd47f9f5837d18f9a0'\n"
00063 " which is known as his hash\n",
00064 };
00065
00066 static int unload_module(void)
00067 {
00068 return ast_custom_function_unregister(&sha1_function);
00069 }
00070
00071 static int load_module(void)
00072 {
00073 return ast_custom_function_register(&sha1_function);
00074 }
00075
00076 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "SHA-1 computation dialplan function");