Protect precious strlens, as pointed out by John Goerzen

[citadel.git] / citadel / modules / vcard / serv_vcard.c

diff --git a/citadel/modules/vcard/serv_vcard.c b/citadel/modules/vcard/serv_vcard.c
index a86127fb42ad58f529e3e427eb0d2d45eb96eddc..dfd745255b7e31955a5ac035fe9bbe6eff484fe3 100644 (file)
--- a/citadel/modules/vcard/serv_vcard.c
+++ b/citadel/modules/vcard/serv_vcard.c
@@ -429,7 +429,9 @@ int vcard_upload_beforesave(struct CtdlMessage *msg, recptypes *recp) {
                CtdlDeleteMessages(CCC->room.QRname, NULL, 0, "[Tt][Ee][Xx][Tt]/.*[Vv][Cc][Aa][Rr][Dd]$");
 
                /* Make the author of the message the name of the user. */
-               CM_SetField(msg, eAuthor, usbuf.fullname, strlen(usbuf.fullname));
+               if (!IsEmptyStr(usbuf.fullname)) {
+                       CM_SetField(msg, eAuthor, usbuf.fullname, strlen(usbuf.fullname));
+               }
        }
 
        /* Insert or replace RFC2739-compliant free/busy URL */
@@ -463,7 +465,7 @@ int vcard_upload_beforesave(struct CtdlMessage *msg, recptypes *recp) {
        CM_FlushField(msg, eExclusiveID);
 
        s = vcard_get_prop(v, "UID", 1, 0, 0);
-       if (s != NULL) {
+       if (!IsEmptyStr(s)) {
                CM_SetField(msg, eExclusiveID, s, strlen(s));
                if (CM_IsEmpty(msg, eMsgSubject)) {
                        CM_CopyField(msg, eMsgSubject, eExclusiveID);
@@ -477,13 +479,13 @@ int vcard_upload_beforesave(struct CtdlMessage *msg, recptypes *recp) {
        if (s == NULL) {
                s = vcard_get_prop(v, "N", 1, 0, 0);
        }
-       if (s != NULL) {
+       if (!IsEmptyStr(s)) {
                CM_SetField(msg, eMsgSubject, s, strlen(s));
        }
 
        /* Re-serialize it back into the msg body */
        ser = vcard_serialize(v);
-       if (ser != NULL) {
+       if (!IsEmptyStr(ser)) {
                StrBuf *buf;
                long serlen;
 
@@ -526,7 +528,9 @@ int vcard_upload_aftersave(struct CtdlMessage *msg, recptypes *recp) {
 
        /* We're interested in user config rooms only. */
 
-       if ( (strlen(CCC->room.QRname) >= 12) && (!strcasecmp(&CCC->room.QRname[11], USERCONFIGROOM)) ) {
+       if ( !IsEmptyStr(CCC->room.QRname) &&
+             (strlen(CCC->room.QRname) >= 12) &&
+             (!strcasecmp(&CCC->room.QRname[11], USERCONFIGROOM)) ) {
                is_UserConf = 1;        /* It's someone's config room */
        }
        CtdlMailboxName(roomname, sizeof roomname, &CCC->user, USERCONFIGROOM);
@@ -677,7 +681,7 @@ void vcard_write_user(struct ctdluser *u, struct vCard *v) {
        if (ser == NULL) {
                ser = strdup("begin:vcard\r\nend:vcard\r\n");
        }
-       if (!ser) return;
+       if (ser == NULL) return;
 
        /* This handy API function does all the work for us.
         * NOTE: normally we would want to set that last argument to 1, to
@@ -880,7 +884,7 @@ void vcard_newuser(struct ctdluser *usbuf) {
 #endif // HAVE_GETPWUID_R
                        snprintf(buf, sizeof buf, "%s@%s", pwd.pw_name, CtdlGetConfigStr("c_fqdn"));
                        vcard_add_prop(v, "email;internet", buf);
-                       need_default_vcard=0;
+                       need_default_vcard = 0;
                }
        }
 #endif
@@ -901,7 +905,7 @@ void vcard_newuser(struct ctdluser *usbuf) {
                if (Ctdl_LDAP_to_vCard(ldap_dn, v)) {
                        /* Allow global address book and internet directory update without login long enough to write this. */
                        CC->vcard_updated_by_ldap++;  /* Otherwise we'll only update the user config. */
-                       need_default_vcard=0;
+                       need_default_vcard = 0;
                        syslog(LOG_DEBUG, "LDAP Created Initial Vcard for %s\n",usbuf->fullname);
                }
            }
@@ -938,7 +942,9 @@ void vcard_purge(struct ctdluser *usbuf) {
        msg->cm_magic = CTDLMESSAGE_MAGIC;
        msg->cm_anon_type = MES_NORMAL;
        msg->cm_format_type = 0;
-       CM_SetField(msg, eAuthor, usbuf->fullname, strlen(usbuf->fullname));
+       if (!IsEmptyStr(usbuf->fullname)) {
+               CM_SetField(msg, eAuthor, usbuf->fullname, strlen(usbuf->fullname));
+       }
        CM_SetField(msg, eOriginalRoom, HKEY(ADDRESS_BOOK_ROOM));
        CM_SetField(msg, eNodeName, CtdlGetConfigStr("c_nodename"), strlen(CtdlGetConfigStr("c_nodename")));
        CM_SetField(msg, eMesageText, HKEY("Purge this vCard\n"));
@@ -1420,7 +1426,9 @@ void store_this_ha(struct addresses_to_be_filed *aptr) {
                        vmsg->cm_format_type = FMT_RFC822;
                        CM_SetField(vmsg, eAuthor, HKEY("Citadel"));
                        s = vcard_get_prop(v, "UID", 1, 0, 0);
-                       CM_SetField(vmsg, eExclusiveID, s, strlen(s));
+                       if (!IsEmptyStr(s)) {
+                               CM_SetField(vmsg, eExclusiveID, s, strlen(s));
+                       }
                        ser = vcard_serialize(v);
                        if (ser != NULL) {
                                StrBuf *buf;