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Safely use the strncat() function.

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(closes issue #11958)
 Reported by: norman
 Patches: 
       20080209__bug11958.diff.txt uploaded by Corydon76 (license 14)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@106552 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2008-03-07 06:36:33 +00:00
parent 24ca0899c2
commit 56e908b787
10 changed files with 23 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
channels/chan_misdn.c
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@@ -2246,8 +2246,7 @@ static int misdn_digit_end(struct ast_channel *ast, char digit, unsigned int dur
buf[1]=0;
l = sizeof(bc->infos_pending);
strncat(bc->infos_pending,buf,l);
bc->infos_pending[l-1] = 0;
strncat(bc->infos_pending, buf, l - strlen(bc->infos_pending) - 1);
}
break;
case MISDN_CALLING_ACKNOWLEDGE:
@@ -2257,8 +2256,7 @@ static int misdn_digit_end(struct ast_channel *ast, char digit, unsigned int dur
{
int l = sizeof(bc->dad);
strncat(bc->dad,bc->info_dad, l - strlen(bc->dad));
bc->dad[l-1] = 0;
strncat(bc->dad, bc->info_dad, l - strlen(bc->dad) - 1);
}
{
int l = sizeof(p->ast->exten);
@@ -4054,8 +4052,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
}
l = sizeof(bc->dad);
strncat(bc->dad,bc->info_dad, l);
bc->dad[l-1] = 0;
strncat(bc->dad,bc->info_dad, l - strlen(bc->dad) - 1);
l = sizeof(ch->ast->exten);
strncpy(ch->ast->exten, bc->dad, l);
@@ -4133,8 +4130,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
if (ch->state != MISDN_CONNECTED ) {
if (digits) {
int l = sizeof(bc->dad);
strncat(bc->dad,bc->info_dad, l);
bc->dad[l-1] = 0;
strncat(bc->dad, bc->info_dad, l - strlen(bc->dad) - 1);
l = sizeof(ch->ast->exten);
strncpy(ch->ast->exten, bc->dad, l);
ch->ast->exten[l-1] = 0;
@@ -4436,8 +4432,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
{
int l = sizeof(bc->dad);
strncat(bc->dad,bc->infos_pending, l - strlen(bc->dad));
bc->dad[l-1] = 0;
strncat(bc->dad, bc->infos_pending, l - strlen(bc->dad) - 1);
}
if (!ch->ast) break;