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Uninitialized pointer read in ipa-rmkeytab

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Fix "--realm" parameter processing in ipa-rmkeytab. Also make sure
that memory allocated in this process is also freed.

https://fedorahosted.org/freeipa/ticket/711
This commit is contained in:
Martin Kosek 2011-01-10 09:55:57 +01:00 committed by Rob Crittenden
parent 6503813608
commit e2d4e9477e
1 changed files with 14 additions and 5 deletions
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19
ipa-client/ipa-rmkeytab.c
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@ -148,8 +148,8 @@ main(int argc, const char **argv)
krb5_error_code krberr;
krb5_keytab ktid;
krb5_kt_cursor cursor;
char * ktname;
char * atrealm;
char * ktname = NULL;
char * atrealm = NULL;
poptContext pc;
static const char *keytab = NULL;
static const char *principal = NULL;
@ -201,14 +201,20 @@ main(int argc, const char **argv)
* the string we pass in looks like a realm.
*/
if (realm) {
if (realm[0] != '@')
if (realm[0] != '@') {
ret = asprintf(&atrealm, "@%s", realm);
if (ret == -1) {
rval = 2;
goto cleanup;
}
else
atrealm = strcpy(atrealm, realm);
} else {
atrealm = strdup(realm);
if (NULL == atrealm) {
rval = 2;
goto cleanup;
}
}
}
krberr = krb5_kt_resolve(context, ktname, &ktid);
@ -247,5 +253,8 @@ cleanup:
poptFreeContext(pc);
free(atrealm);
free(ktname);
return rval;
}