fixes applied

6 files changed, 54 insertions, 4 deletions

diff --git a/libetpan/src/data-types/mailstream_helper.c b/libetpan/src/data-types/mailstream_helper.c
index 2f0b9ae..f0ddf51 100644
--- a/libetpan/src/data-types/mailstream_helper.c
+++ b/libetpan/src/data-types/mailstream_helper.c
@@ -53,100 +53,107 @@ static void remove_trailing_eol(MMAPString * mmapstr)
 char * mailstream_read_line(mailstream * stream, MMAPString * line)
 {
   if (mmap_string_assign(line, "") == NULL)
     return NULL;
 
   return mailstream_read_line_append(stream, line);
 }
 
 static char * mailstream_read_len_append(mailstream * stream,
                                          MMAPString * line,
                                          size_t i)
 {
   size_t cur_size;
 
   cur_size = line->len;
   if (mmap_string_set_size(line, line->len + i) == NULL)
     return NULL;
   if (mailstream_read(stream, line->str + cur_size, i) < 0)
     return NULL;
   return line->str;
 }
 
 char * mailstream_read_line_append(mailstream * stream, MMAPString * line)
 {
   if (stream == NULL)
     return NULL;
 
   do {
     if (stream->read_buffer_len > 0) {
       size_t i;
 
       i = 0;
       while (i < stream->read_buffer_len) {
         if (stream->read_buffer[i] == '\n')
           return mailstream_read_len_append(stream, line, i + 1);
         i++;
       }
       if (mailstream_read_len_append(stream, line,
                                      stream->read_buffer_len) == NULL)
         return NULL;
     }
     else {
       ssize_t r;
       
       r = mailstream_feed_read_buffer(stream);
       if (r == -1)
         return NULL;
 
-      if (r == 0)
+      if (r == 0) { 
+          // LR
+          // this avoids a memory access violation later when trying
+          // to remove_trailing_eol from a null string
+          if ( line->len == 0 )
+              return NULL;
+          else
         break;
     }
   }
+  }
   while (1);
 
   return line->str;
 }
 
 char * mailstream_read_line_remove_eol(mailstream * stream, MMAPString * line)
 {
   if (!mailstream_read_line(stream, line))
     return NULL;
 
   remove_trailing_eol(line);
 
   return line->str;
 }
 
 int mailstream_is_end_multiline(const char * line)
 {
   if (line[0] != '.')
     return FALSE;
   if (line[1] != 0)
     return FALSE;
   return TRUE;
 }
 
 #if 1
 char * mailstream_read_multiline(mailstream * s, size_t size,
                                   MMAPString * stream_buffer,
                                   MMAPString * multiline_buffer,
                                   size_t progr_rate,
                                   progress_function * progr_fun)
 {
   size_t count;
   char * line;
   size_t last;
 
   if (mmap_string_assign(multiline_buffer, "") == NULL)
     return NULL;
 
   count = 0;
   last = 0;
 
   while ((line = mailstream_read_line_remove_eol(s, stream_buffer)) != NULL) {
     if (mailstream_is_end_multiline(line))
       return multiline_buffer->str;
 
     if (line[0] == '.') {
       if (mmap_string_append(multiline_buffer, line + 1) == NULL)
         return NULL;
diff --git a/libetpan/src/driver/implementation/pop3/pop3driver.c b/libetpan/src/driver/implementation/pop3/pop3driver.c
index ea69923..6cc6a9a 100644
--- a/libetpan/src/driver/implementation/pop3/pop3driver.c
+++ b/libetpan/src/driver/implementation/pop3/pop3driver.c
@@ -204,119 +204,125 @@ static int pop3driver_starttls(mailsession * session)
 
   switch (r) {
   case MAILPOP3_NO_ERROR:
     break;
   default:
     return pop3driver_pop3_error_to_mail_error(r);
   }
 
   low = mailstream_get_low(pop3->pop3_stream);
   fd = mailstream_low_get_fd(low);
   if (fd == -1)
     return MAIL_ERROR_STREAM;
   
   new_low = mailstream_low_ssl_open(fd);
   if (new_low == NULL)
     return MAIL_ERROR_STREAM;
   mailstream_low_free(low);
   mailstream_set_low(pop3->pop3_stream, new_low);
   
   return MAIL_NO_ERROR;
 }
 
 static int pop3driver_parameters(mailsession * session,
     int id, void * value)
 {
   struct pop3_session_state_data * data;
 
   data = get_data(session);
 
   switch (id) {
   case POP3DRIVER_SET_AUTH_TYPE:
     {
       int * param;
 
       param = value;
 
       data->pop3_auth_type = * param;
       return MAIL_NO_ERROR;
     }
   }
 
   return MAIL_ERROR_INVAL;
 }
 
 static int pop3driver_login(mailsession * session,
                             char * userid, char * password)
 {
   int r;
+  //LR
+  int ret;
   carray * msg_tab;
   struct pop3_session_state_data * data;
 
   data = get_data(session);
 
   switch (data->pop3_auth_type) {
   case POP3DRIVER_AUTH_TYPE_TRY_APOP:
     r = mailpop3_login_apop(get_pop3_session(session), userid, password);
     if (r != MAILPOP3_NO_ERROR)
       r = mailpop3_login(get_pop3_session(session), userid, password);
     break;
 
   case POP3DRIVER_AUTH_TYPE_APOP:
     r = mailpop3_login_apop(get_pop3_session(session), userid, password);
     break;
 
   default:
   case POP3DRIVER_AUTH_TYPE_PLAIN:
     r = mailpop3_login(get_pop3_session(session), userid, password);
     break;
   }
 
+  // LR 2 lines
+  ret = pop3driver_pop3_error_to_mail_error(r);
+  if ( ret ==  MAIL_NO_ERROR  )
   mailpop3_list(get_pop3_session(session), &msg_tab);
+  // LR
 
   return pop3driver_pop3_error_to_mail_error(r);
 }
 
 static int pop3driver_logout(mailsession * session)
 {
   int r;
 
   r = mailpop3_quit(get_pop3_session(session));
 
   return pop3driver_pop3_error_to_mail_error(r);
 }
 
 static int pop3driver_noop(mailsession * session)
 {
   int r;
 
   r = mailpop3_noop(get_pop3_session(session));
 
   return pop3driver_pop3_error_to_mail_error(r);
 }
 
 static int pop3driver_status_folder(mailsession * session, char * mb,
                                     uint32_t * result_messages,
                                     uint32_t * result_recent,
                                     uint32_t * result_unseen)
 {
   uint32_t count;
   int r;
   
   r = pop3driver_messages_number(session, mb, &count);
   if (r != MAIL_NO_ERROR)
     return r;
           
   * result_messages = count;
   * result_recent = count;
   * result_unseen = count;
   
   return MAIL_NO_ERROR;
 }
 
 static int pop3driver_messages_number(mailsession * session, char * mb,
                                       uint32_t * result)
 {
   carray * msg_tab;
 
   mailpop3_list(get_pop3_session(session), &msg_tab);
 
diff --git a/libetpan/src/low-level/imap/mailimap_parser.c b/libetpan/src/low-level/imap/mailimap_parser.c
index ab4db67..071891c 100644
--- a/libetpan/src/low-level/imap/mailimap_parser.c
+++ b/libetpan/src/low-level/imap/mailimap_parser.c
@@ -2354,99 +2354,117 @@ mailimap_body_fld_known_enc_parse(mailstream * fd, MMAPString * buffer,
 
   if (type == -1) {
     res = MAILIMAP_ERROR_PARSE;
     goto err;
   }
   
   r = mailimap_dquote_parse(fd, buffer, &cur_token);
   if (r != MAILIMAP_NO_ERROR) {
     res = r;
     goto err;
   }
 
   * result = type;
   * index = cur_token;
 
   return MAILIMAP_NO_ERROR;
   
  err:
   return res;
 }     
 
 static int
 mailimap_body_fld_enc_parse(mailstream * fd, MMAPString * buffer,
                             size_t * index,
                             struct mailimap_body_fld_enc ** result,
                             size_t progr_rate,
                             progress_function * progr_fun)
 {
   size_t cur_token;
   int type;
   char * value;
   struct mailimap_body_fld_enc * body_fld_enc;
   int r;
   int res;
 
   cur_token = * index;
 
   r = mailimap_body_fld_known_enc_parse(fd, buffer, &cur_token,
       &type, progr_rate, progr_fun);
   if (r == MAILIMAP_NO_ERROR) {
     value = NULL;
   }
   else if (r == MAILIMAP_ERROR_PARSE) {
     type = MAILIMAP_BODY_FLD_ENC_OTHER;
 
     r = mailimap_string_parse(fd, buffer, &cur_token, &value, NULL,
                               progr_rate, progr_fun);
     if (r != MAILIMAP_NO_ERROR) {
-      res = r;
+        // LR start
+        // accept NIL and set type to utf8
+        int ret = r;
+        r = mailimap_char_parse(fd, buffer, &cur_token, 'N');
+        if (r == MAILIMAP_NO_ERROR) {
+            r = mailimap_char_parse(fd, buffer, &cur_token, 'I');
+            if (r == MAILIMAP_NO_ERROR) {
+                r = mailimap_char_parse(fd, buffer, &cur_token, 'L');
+                if (r == MAILIMAP_NO_ERROR) {
+                    type = 4;
+                    ret = MAILIMAP_NO_ERROR;
+                    value = NULL;
+                }
+            }
+        }
+        if ( ret != MAILIMAP_NO_ERROR ) {
+            res = ret;
       goto err;
     }
+        // LR end
+    }
   }
   else {
     res = r;
     goto err;
   }
   
   body_fld_enc = mailimap_body_fld_enc_new(type, value);
   if (body_fld_enc == NULL) {
     res = MAILIMAP_ERROR_MEMORY;
     goto value_free;
   }
   
   * result = body_fld_enc;
   * index = cur_token;
 
   return MAILIMAP_NO_ERROR;
 
  value_free:
   if (value)
     mailimap_string_free(value);
  err:
   return res;
 }
 
 /*
    body-fld-id     = nstring
 */
 
 static int mailimap_body_fld_id_parse(mailstream * fd, MMAPString * buffer,
                                       size_t * index, char ** result,
                                       size_t progr_rate,
                                       progress_function * progr_fun)
 {
   return mailimap_nstring_parse(fd, buffer, index, result, NULL,
                                 progr_rate, progr_fun);
 }
 
 
 /*
    body-fld-lang   = nstring / "(" string *(SP string) ")"
 */
 
 /*
 "(" string *(SP string) ")"
 */
 
 static int
 mailimap_body_fld_lang_list_parse(mailstream * fd, MMAPString * buffer,
diff --git a/libetpan/src/low-level/maildir/maildir.c b/libetpan/src/low-level/maildir/maildir.c
index 98b9f87..e81625d 100644
--- a/libetpan/src/low-level/maildir/maildir.c
+++ b/libetpan/src/low-level/maildir/maildir.c
@@ -65,134 +65,147 @@ struct maildir * maildir_new(const char * path)
   
   md->mdir_counter = 0;
   md->mdir_mtime_new = (time_t) -1;
   md->mdir_mtime_cur = (time_t) -1;
   
   md->mdir_pid = getpid();
   gethostname(md->mdir_hostname, sizeof(md->mdir_hostname));
   strncpy(md->mdir_path, path, sizeof(md->mdir_path));
   md->mdir_path[PATH_MAX - 1] = '\0';
   
   md->mdir_msg_list = carray_new(128);
   if (md->mdir_msg_list == NULL)
     goto free;
   
   md->mdir_msg_hash = chash_new(CHASH_DEFAULTSIZE, CHASH_COPYNONE);
   if (md->mdir_msg_hash == NULL)
     goto free_msg_list;
   
   return md;
   
  free_msg_list:
   carray_free(md->mdir_msg_list);
  free:
   free(md);
  err:
   return NULL;
 }
 
 static void maildir_flush(struct maildir * md, int msg_new);
 
 void maildir_free(struct maildir * md)
 {
   maildir_flush(md, 0);
   maildir_flush(md, 1);
   chash_free(md->mdir_msg_hash);
   carray_free(md->mdir_msg_list);
   free(md);
 }
 
 #define MAX_TRY_ALLOC 32
 
 static char * maildir_get_new_message_filename(struct maildir * md,
     char * tmpfile)
 {
   char filename[PATH_MAX];
   char basename[PATH_MAX];
   int k;
   time_t now;
+  //LR
+  struct stat f_stat;
   int got_file;
   int r;
   
   got_file = 0;
   now = time(NULL);
   k = 0;
   while (k < MAX_TRY_ALLOC) {
     snprintf(basename, sizeof(basename), "%lu.%u_%u.%s",
         (unsigned long) now, md->mdir_pid, md->mdir_counter, md->mdir_hostname);
     snprintf(filename, sizeof(filename), "%s/tmp/%s",
         md->mdir_path, basename);
     
+    // LR changed following lines
+    if ( stat( filename,  &f_stat   ) == -1 ) {
+        char * dup_filename;
+        
+        dup_filename = strdup(filename);
+        if (dup_filename == NULL) {
+            //unlink(filename);
+            return NULL;
+        }
+        rename (tmpfile,dup_filename );
+#if 0    
     if (link(tmpfile, filename) == 0) {
       got_file = 1;
       unlink(tmpfile);
     }
     else if (errno == EXDEV) {
       unlink(tmpfile);
       return NULL;
     }
     else if (errno == EPERM) {
       r = rename(tmpfile, filename);
       if (r < 0) {
         unlink(tmpfile);
         return NULL;
       }
       got_file = 1;
     }
     
     if (got_file) {
       char * dup_filename;
       
       dup_filename = strdup(filename);
       if (dup_filename == NULL) {
         unlink(filename);
         return NULL;
       }
-      
+#endif      
       md->mdir_counter ++;
       
       return dup_filename;
     }
     
     md->mdir_counter ++;
     k ++;
   }
   
   return NULL;
 }
 
 
 static void msg_free(struct maildir_msg * msg)
 {
   free(msg->msg_uid);
   free(msg->msg_filename);
   free(msg);
 }
 
 /*
   msg_new()
   
   filename is given without path
 */
 
 static struct maildir_msg * msg_new(char * filename, int new_msg)
 {
   struct maildir_msg * msg;
   char * p;
   int flags;
   size_t uid_len;
   char * begin_uid;
 
   /* name of file : xxx-xxx_xxx-xxx:2,SRFT */
   
   msg = malloc(sizeof(* msg));
   if (msg == NULL)
     goto err;
   
   msg->msg_filename = strdup(filename);
   if (msg->msg_filename == NULL)
     goto free;
   
   begin_uid = filename;
   
   uid_len = strlen(begin_uid);
   
diff --git a/libetpan/src/low-level/mh/mailmh.c b/libetpan/src/low-level/mh/mailmh.c
index 42cab9d..f8c694d 100644
--- a/libetpan/src/low-level/mh/mailmh.c
+++ b/libetpan/src/low-level/mh/mailmh.c
@@ -875,96 +875,99 @@ int mailmh_folder_add_message_file(struct mailmh_folder * folder,
 {
   return mailmh_folder_add_message_file_uid(folder, fd, NULL);
 }
 
 int mailmh_folder_remove_message(struct mailmh_folder * folder,
                                  uint32_t index)
 {
   char * filename;
   struct mailmh_msg_info * msg_info;
   int res;
   int r;
   chashdatum key;
   chashdatum data;
 
 #if 0  
   r = mailmh_folder_update(folder);
   if (r != MAILMH_NO_ERROR) {
     res = r;
     goto err;
   }
 #endif
 
   r = mailmh_folder_get_message_filename(folder, index, &filename);
   if (filename == NULL) {
     res = r;
     goto err;
   }
 
   if (unlink(filename) == -1) {
     res = MAILMH_ERROR_FILE;
     goto free;
   }
 
   key.data = &index;
   key.len = sizeof(index);
   r = chash_get(folder->fl_msgs_hash, &key, &data);
 #if 0
   msg_info = cinthash_find(folder->fl_msgs_hash, index);
 #endif
   if (r == 0) {
     msg_info = data.data;
 
     carray_delete_fast(folder->fl_msgs_tab, msg_info->msg_array_index);
 #if 0
     cinthash_remove(folder->fl_msgs_hash, index);
 #endif
     chash_delete(folder->fl_msgs_hash, &key, NULL);
   }
+  // LR memory leak fixed
+  mailmh_msg_info_free( msg_info );
+  free(filename);
 
   return MAILMH_NO_ERROR;
 
  free:
   free(filename);
  err:
   return res;
 }
 
 
 int mailmh_folder_move_message(struct mailmh_folder * dest_folder,
                                struct mailmh_folder * src_folder,
                                uint32_t index)
 {
   int fd;
   char * filename;
   int r;
 
 #if 0
   r = mailmh_folder_update(dest_folder);
   if (r != MAILMH_NO_ERROR)
     return r;
   r = mailmh_folder_update(src_folder);
   if (r != MAILMH_NO_ERROR)
     return r;
 #endif
 
   /* move on the same filesystem */
   r = mailmh_folder_get_message_filename(src_folder, index, &filename);
   if (r != MAILMH_NO_ERROR)
     return r;
 
   r = mailmh_folder_alloc_msg(dest_folder, filename, &index);
   free(filename);
   if (r == MAILMH_NO_ERROR)
     return MAILMH_NO_ERROR;
 
   /* move on the different filesystems */
   r = mailmh_folder_get_message_fd(src_folder, index, O_RDONLY, &fd);
   if (r != MAILMH_NO_ERROR)
     return r;
 
   r = mailmh_folder_add_message_file(dest_folder, fd);
   if (r != MAILMH_NO_ERROR) {
     close(fd);
     return r;
   }
 
diff --git a/libetpan/src/low-level/pop3/mailpop3.c b/libetpan/src/low-level/pop3/mailpop3.c
index 6f77a3a..bca62d5 100644
--- a/libetpan/src/low-level/pop3/mailpop3.c
+++ b/libetpan/src/low-level/pop3/mailpop3.c
@@ -463,98 +463,101 @@ int mailpop3_apop(mailpop3 * f,
 int mailpop3_user(mailpop3 * f, const char * user)
 {
   char command[POP3_STRING_SIZE];
   int r;
   char * response;
 
   if (f->pop3_state != POP3_STATE_AUTHORIZATION)
     return MAILPOP3_ERROR_BAD_STATE;
   
   /* send user command */
     
   snprintf(command, POP3_STRING_SIZE, "USER %s\r\n", user);
   r = send_command(f, command);
   if (r == -1)
     return MAILPOP3_ERROR_STREAM;
 
   response = read_line(f);
   if (response == NULL)
     return MAILPOP3_ERROR_STREAM;
   r = parse_response(f, response);
 
   if (r != RESPONSE_OK)
     return MAILPOP3_ERROR_BAD_USER;
 
   return MAILPOP3_NO_ERROR;
 }
 
 int mailpop3_pass(mailpop3 * f, const char * password)
 {
   char command[POP3_STRING_SIZE];
   int r;
   char * response;
 
   if (f->pop3_state != POP3_STATE_AUTHORIZATION)
     return MAILPOP3_ERROR_BAD_STATE;
 
   /* send password command */
 
   snprintf(command, POP3_STRING_SIZE, "PASS %s\r\n", password);
   r = send_command(f, command);
   if (r == -1)
     return MAILPOP3_ERROR_STREAM;
 
   response = read_line(f);
   if (response == NULL)
     return MAILPOP3_ERROR_STREAM;
   r = parse_response(f, response);
 
-  if (r != RESPONSE_OK)
+  if (r != RESPONSE_OK) {  
+      // LR
+      fprintf(stderr,"POP3 login error. Response from server:\n%s\n",response );
     return MAILPOP3_ERROR_BAD_PASSWORD;
+  }
 
   f->pop3_state = POP3_STATE_TRANSACTION;
 
   return MAILPOP3_NO_ERROR;
 }
 
 static int read_list(mailpop3 * f, carray ** result);
 
 
 
 static int read_uidl(mailpop3 * f, carray * msg_tab);
 
 
 
 static int mailpop3_do_uidl(mailpop3 * f, carray * msg_tab)
 {
   char command[POP3_STRING_SIZE];
   int r;
   char * response;
 
   if (f->pop3_state != POP3_STATE_TRANSACTION)
     return MAILPOP3_ERROR_BAD_STATE;
 
   /* send list command */
   
   snprintf(command, POP3_STRING_SIZE, "UIDL\r\n");
   r = send_command(f, command);
   if (r == -1)
     return MAILPOP3_ERROR_STREAM;
 
   response = read_line(f);
   if (response == NULL)
     return MAILPOP3_ERROR_STREAM;
   r = parse_response(f, response);
 
   if (r != RESPONSE_OK)
     return MAILPOP3_ERROR_CANT_LIST;
   
   r = read_uidl(f, msg_tab);
   if (r != MAILPOP3_NO_ERROR)
     return r;
 
   return MAILPOP3_NO_ERROR;
 }
 
 
 
 static int mailpop3_do_list(mailpop3 * f)