Make cppcheck happy. (normally we assume malloc does not fail.)

source/dmenu-dialog.c

@@ -46,7 +46,12 @@ static char **get_dmenu ( void )
 
     while ( fgets ( buffer, 1024, stdin ) != NULL )
     {
-        retv            = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+        char **tr = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+        if ( tr == NULL )
+        {
+            return retv;
+        }
+        retv            = tr;
         retv[index]     = strdup ( buffer );
         retv[index + 1] = NULL;
 

source/history.c

@@ -94,7 +94,14 @@ static _element ** __history_get_element_list ( FILE *fd, unsigned int *length )
         {
             continue;
         }
-        retv              = realloc ( retv, ( *length + 2 ) * sizeof ( _element* ) );
+        // Resize and check.
+        _element **tr = realloc ( retv, ( *length + 2 ) * sizeof ( _element* ) );
+        if ( tr == NULL )
+        {
+            return retv;
+        }
+        retv = tr;
+
         retv[( *length )] = malloc ( sizeof ( _element ) );
         // remove trailing \n
         buffer[strlen ( buffer ) - 1] = '\0';
@@ -146,9 +153,14 @@ void history_set ( const char *filename, const char *entry )
     {
         // If not exists, add it.
         // Increase list by one
-        list         = realloc ( list, ( length + 2 ) * sizeof ( _element * ) );
+        _element **tr = realloc ( list, ( length + 2 ) * sizeof ( _element* ) );
+        if ( tr != NULL )
+        {
+            list         = tr;
             list[length] = malloc ( sizeof ( _element ) );
             // Copy name
+            if ( list[length] != NULL )
+            {
                 strncpy ( list[length]->name, entry, HISTORY_NAME_LENGTH );
                 list[length]->name[HISTORY_NAME_LENGTH - 1] = '\0';
                 // set # hits
@@ -157,6 +169,8 @@ void history_set ( const char *filename, const char *entry )
                 length++;
                 list[length] = NULL;
             }
+        }
+    }
 
     // Rewind.
     fseek ( fd, 0L, SEEK_SET );
@@ -172,16 +186,10 @@ void history_set ( const char *filename, const char *entry )
     }
     // Free the list.
     for ( unsigned int iter = 0; iter < length; iter++ )
-    {
-        if ( list[iter] != NULL )
     {
         free ( list[iter] );
     }
-    }
-    if ( list != NULL )
-    {
     free ( list );
-    }
     // Close file.
     fclose ( fd );
 }

source/rofi.c

@@ -136,11 +136,15 @@ static char **tokenize ( const char *input )
         token != NULL;
         token = strtok_r ( NULL, " ", &saveptr ) )
     {
-        retv                 = realloc ( retv, sizeof ( char* ) * ( num_tokens + 2 ) );
+        char **tr = realloc ( retv, sizeof ( char* ) * ( num_tokens + 2 ) );
+        if ( tr != NULL )
+        {
+            retv = tr;
             retv[num_tokens + 1] = NULL;
             retv[num_tokens]     = token;
             num_tokens++;
         }
+    }
 
     return retv;
 }
@@ -608,7 +612,7 @@ void monitor_dimensions ( Screen *screen, int x, int y, workarea *mon )
     mon->w = WidthOfScreen ( screen );
     mon->h = HeightOfScreen ( screen );
 
-// locate the current monitor
+    // locate the current monitor
     if ( XineramaIsActive ( display ) )
     {
         int                monitors;

source/run-dialog.c

@@ -178,11 +178,15 @@ static char ** get_apps ( void )
                     continue;
                 }
 
-                retv            = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+                char ** tr = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+                if ( tr != NULL )
+                {
+                    retv            = tr;
                     retv[index]     = strdup ( dent->d_name );
                     retv[index + 1] = NULL;
                     index++;
                 }
+            }
 
             closedir ( dir );
         }

source/ssh-dialog.c

@@ -206,12 +206,16 @@ static char ** get_ssh ( void )
                     continue;
                 }
 
-                retv            = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+                char **tr = realloc ( retv, ( index + 2 ) * sizeof ( char* ) );
+                if ( tr != NULL )
+                {
+                    retv            = tr;
                     retv[index]     = strndup ( &buffer[start], stop - start );
                     retv[index + 1] = NULL;
                     index++;
                 }
             }
+        }
 
         fclose ( fd );
     }