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check input for errors. Bug #435

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2543 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Jeremy McNamara
2004-03-24 03:48:18 +00:00
parent 3b6c8b3f77
commit 4f72330f5c
1 changed files with 13 additions and 7 deletions
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12
apps/app_senddtmf.c
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@@ -30,8 +30,9 @@ static char *app = "SendDTMF";
static char *synopsis = "Sends arbitrary DTMF digits"; static char *synopsis = "Sends arbitrary DTMF digits";
static char *descrip = static char *descrip =
" SendDTMF(digits): Sends DTMF digits on a channel. Returns 0 on success" " SendDTMF(digits): Sends DTMF digits on a channel. \n"
"or -1 on a hangup.\n"; " Accepted digits: 0-9, *#abcd\n"
" Returns 0 on success or -1 on a hangup.\n";
STANDARD_LOCAL_USER; STANDARD_LOCAL_USER;
@@ -45,7 +46,7 @@ static int senddtmf_exec(struct ast_channel *chan, void *data)
struct ast_frame f; struct ast_frame f;
int x; int x;
if (!digits || !strlen(digits)) { if (!digits || !strlen(digits)) {
ast_log(LOG_WARNING, "SendDTMF requires an argument (digits)\n"); ast_log(LOG_WARNING, "SendDTMF requires an argument (digits or *#abcd)\n");
return -1; return -1;
} }
LOCAL_USER_ADD(u); LOCAL_USER_ADD(u);
@@ -54,6 +55,10 @@ static int senddtmf_exec(struct ast_channel *chan, void *data)
f.frametype = AST_FRAME_DTMF; f.frametype = AST_FRAME_DTMF;
f.subclass = digits[x]; f.subclass = digits[x];
f.src = "app_senddtmf"; f.src = "app_senddtmf";
res = ast_write(chan, &f);
if (strchr("0123456789*#abcd",digits[x])==NULL) {
ast_log(LOG_WARNING, "Illegal DTMF character in string. (0-9*#abcd allowed)\n");
} else {
res = ast_write(chan, &f); res = ast_write(chan, &f);
if (res) if (res)
break; break;
@@ -62,6 +67,7 @@ static int senddtmf_exec(struct ast_channel *chan, void *data)
if (res) if (res)
break; break;
} }
}
if (!res) if (!res)
if (option_verbose > 2) if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Sent digit string '%s' on %s\n", digits, chan->name); ast_verbose(VERBOSE_PREFIX_3 "Sent digit string '%s' on %s\n", digits, chan->name);