diff options
Diffstat (limited to 'funcs/func_sha1.c')
| -rw-r--r-- | funcs/func_sha1.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/funcs/func_sha1.c b/funcs/func_sha1.c index 9600d20c5..c9805d2a3 100644 --- a/funcs/func_sha1.c +++ b/funcs/func_sha1.c @@ -37,22 +37,26 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #include "asterisk/utils.h" #include "asterisk/app.h" -static char *sha1(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) +static int sha1(struct ast_channel *chan, char *cmd, char *data, + char *buf, size_t len) { + *buf = '\0'; + if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "Syntax: SHA1(<data>) - missing argument!\n"); - return NULL; + return -1; } if (len >= 41) ast_sha1_hash(buf, data); else { - ast_log(LOG_ERROR, "Insufficient space to produce SHA1 hash result (%d < 41)\n", len); - *buf = '\0'; + ast_log(LOG_ERROR, + "Insufficient space to produce SHA1 hash result (%d < 41)\n", + len); } - return buf; -} + return 0; +} static struct ast_custom_function sha1_function = { .name = "SHA1", @@ -60,21 +64,21 @@ static struct ast_custom_function sha1_function = { .syntax = "SHA1(<data>)", .read = sha1, .desc = "Generate a SHA1 digest via the SHA1 algorythm.\n" - " Example: Set(sha1hash=${SHA1(junky)})\n" - " Sets the asterisk variable sha1hash to the string '60fa5675b9303eb62f99a9cd47f9f5837d18f9a0'\n" - " which is known as his hash\n", + " Example: Set(sha1hash=${SHA1(junky)})\n" + " Sets the asterisk variable sha1hash to the string '60fa5675b9303eb62f99a9cd47f9f5837d18f9a0'\n" + " which is known as his hash\n", }; static char *tdesc = "SHA-1 computation dialplan function"; int unload_module(void) { - return ast_custom_function_unregister(&sha1_function); + return ast_custom_function_unregister(&sha1_function); } int load_module(void) { - return ast_custom_function_register(&sha1_function); + return ast_custom_function_register(&sha1_function); } char *description(void) |