diff options
Diffstat (limited to 'src/lib/krb4/realmofhost.c')
| -rw-r--r-- | src/lib/krb4/realmofhost.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/lib/krb4/realmofhost.c b/src/lib/krb4/realmofhost.c index cff11cc..e4529d5 100644 --- a/src/lib/krb4/realmofhost.c +++ b/src/lib/krb4/realmofhost.c @@ -48,7 +48,11 @@ char *host; char *domain; FILE *trans_file; FILE *krb__get_realmsfile(); - char trans_host[MAXHOSTNAMELEN+1]; + /* + * This used to be MAXHOSTNAMELEN, but we don't know how big + * that will necessarily be on all systems, so assume 1024. + */ + char trans_host[1025]; char trans_realm[REALM_SZ+1]; int retval; struct hostent *h; @@ -111,24 +115,28 @@ char *host; /* loop while not exact match, and more entries to read */ while (1) { - if ((retval = fscanf(trans_file, "%s %s", + /* XXX REALM_SZ == 40 */ + if ((retval = fscanf(trans_file, "%1023s %40s", trans_host, trans_realm)) != 2) { if (retval == EOF) break; continue; /* ignore broken lines */ } - trans_host[MAXHOSTNAMELEN] = '\0'; + trans_host[(MAXHOSTNAMELEN <= 1023) ? MAXHOSTNAMELEN : 1023] + = '\0'; trans_realm[REALM_SZ] = '\0'; if (trans_host[0] == '.') { /* want domain match only */ - if (domain && !strcasecmp (trans_host, domain)) { + if (domain && (strlen(trans_host) == strlen(domain)) + && !strcasecmp (trans_host, domain)) { /* got domain match, save for later */ (void) strcpy (ret_realm, trans_realm); continue; } } else { /* want exact match of hostname */ - if (!strcasecmp (trans_host, lhost)) { + if ((strlen(lhost) == strlen(trans_host)) && + !strcasecmp (trans_host, lhost)) { (void) strcpy (ret_realm, trans_realm); break; } |