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_cmd_tiny: fix possible NULL pointer dereference

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Check 'url' for NULL and move free(url) out of if-else structure
This commit is contained in:
Dmitry Podgorny 2012-10-24 13:43:25 +03:00
parent e49bea4d6b
commit d6f87e7a16
1 changed files with 6 additions and 5 deletions
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11
src/command.c
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@ -753,6 +753,10 @@ _cmd_tiny(const char * const inp, struct cmd_help_t help)
{
if (strlen(inp) > 6) {
char *url = strndup(inp+6, strlen(inp)-6);
if (url == NULL) {
log_error("Not enough memory.");
return FALSE;
}
if (!tinyurl_valid(url)) {
GString *error = g_string_new("/tiny, badly formed URL: ");
@ -762,10 +766,9 @@ _cmd_tiny(const char * const inp, struct cmd_help_t help)
win_bad_show(error->str);
}
g_string_free(error, TRUE);
free(url);
} else if (win_in_chat()) {
char *tiny = tinyurl_get(url);
if (tiny != NULL) {
char *recipient = win_get_recipient();
jabber_send(tiny, recipient);
@ -781,12 +784,10 @@ _cmd_tiny(const char * const inp, struct cmd_help_t help)
} else {
cons_bad_show("Couldn't get tinyurl.");
}
free(url);
} else {
cons_bad_command(inp);
free(url);
}
free(url);
} else {
cons_show("Usage: %s", help.usage);