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use unsigned counters for handling answer/IE lengths while processing DNS results (issue #7174)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@28337 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2006-05-18 19:35:55 +00:00
parent 2ef43a770b
commit bfbf66aec6
1 changed files with 8 additions and 6 deletions
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14
enum.c
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@@ -80,27 +80,29 @@ struct naptr {
} __attribute__ ((__packed__));
/*--- parse_ie: Parse NAPTR record information elements */
static int parse_ie(char *data, int maxdatalen, char *src, int srclen)
static unsigned int parse_ie(char *data, unsigned int maxdatalen, char *src, unsigned int srclen)
{
int len, olen;
unsigned int len, olen;
len = olen = (int)src[0];
len = olen = (unsigned int) src[0];
src++;
srclen--;
if (len > srclen || len < 0 ) {
if (len > srclen) {
ast_log(LOG_WARNING, "ENUM parsing failed: Wanted %d characters, got %d\n", len, srclen);
return -1;
}
if (len > maxdatalen)
len = maxdatalen;
memcpy(data, src, len);
return olen + 1;
}
/*--- parse_naptr: Parse DNS NAPTR record used in ENUM ---*/
static int parse_naptr(char *dst, int dstsize, char *tech, int techsize, char *answer, int len, char *naptrinput)
{
char tech_return[80];
char *oanswer = answer;
char flags[512] = "";
@@ -344,7 +346,7 @@ static int txt_callback(void *context, char *answer, int len, char *fullanswer)
/*--- enum_callback: Callback from ENUM lookup function */
static int enum_callback(void *context, char *answer, int len, char *fullanswer)
{
struct enum_context *c = (struct enum_context *)context;
struct enum_context *c = (struct enum_context *)context;
void *p = NULL;
int res;