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	Merged revisions 228620 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk ................ r228620 | mnicholson | 2009-11-06 13:47:11 -0600 (Fri, 06 Nov 2009) | 15 lines Merged revisions 228378 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r228378 | mnicholson | 2009-11-06 10:26:59 -0600 (Fri, 06 Nov 2009) | 8 lines Properly handle '=' while decoding base64 messages and null terminate strings returned from BASE64_DECODE. (closes issue #15271) Reported by: chappell Patches: base64_fix.patch uploaded by chappell (license 8) Tested by: kobaz ........ ................ git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@228650 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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		| @@ -46,12 +46,19 @@ static int base64_encode(struct ast_channel *chan, const char *cmd, char *data, | ||||
| static int base64_decode(struct ast_channel *chan, const char *cmd, char *data, | ||||
| 			 char *buf, size_t len) | ||||
| { | ||||
| 	int decoded_len; | ||||
|  | ||||
| 	if (ast_strlen_zero(data)) { | ||||
| 		ast_log(LOG_WARNING, "Syntax: BASE64_DECODE(<base_64 string>) - missing argument!\n"); | ||||
| 		return -1; | ||||
| 	} | ||||
|  | ||||
| 	ast_base64decode((unsigned char *) buf, data, len); | ||||
| 	decoded_len = ast_base64decode((unsigned char *) buf, data, len); | ||||
| 	if (decoded_len <= (len - 1)) {		/* if not truncated, */ | ||||
| 		buf[decoded_len] = '\0'; | ||||
| 	} else { | ||||
| 		buf[len - 1] = '\0'; | ||||
| 	} | ||||
|  | ||||
| 	return 0; | ||||
| } | ||||
|   | ||||
| @@ -267,7 +267,7 @@ int ast_base64decode(unsigned char *dst, const char *src, int max) | ||||
| 	unsigned int byte = 0; | ||||
| 	unsigned int bits = 0; | ||||
| 	int incnt = 0; | ||||
| 	while (*src && (cnt < max)) { | ||||
| 	while(*src && *src != '=' && (cnt < max)) { | ||||
| 		/* Shift in 6 bits of input */ | ||||
| 		byte <<= 6; | ||||
| 		byte |= (b2a[(int)(*src)]) & 0x3f; | ||||
|   | ||||
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