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Issue #388, Try to make history parser more robust against corruption.

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This commit is contained in:
Dave Davenport 2016-04-27 12:55:48 +02:00
parent 88c0a5c888
commit 4dbf2813d0
1 changed files with 14 additions and 4 deletions
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18
source/history.c
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@ -90,18 +90,28 @@ static _element ** __history_get_element_list ( FILE *fd, unsigned int *length )
while ( ( l = getline ( &buffer, &buffer_length, fd ) ) > 0 ) {
char * start = NULL;
// Skip empty lines.
if ( strlen ( buffer ) == 0 ) {
if ( l <= 1 ) {
continue;
}
long int index = strtol ( buffer, &start, 10 );
if ( start == buffer || *start == '\0' ) {
continue;
}
start++;
if ( (l - (start-buffer)) < 3) {
continue;
}
// Resize and check.
retv = g_realloc ( retv, ( *length + 2 ) * sizeof ( _element* ) );
retv[( *length )] = g_malloc ( sizeof ( _element ) );
// remove trailing \n
buffer[strlen ( buffer ) - 1] = '\0';
buffer[l - 1] = '\0';
// Parse the number of times.
retv[( *length )]->index = strtol ( buffer, &start, 10 );
retv[( *length )]->name = g_strndup ( start + 1, l - 1 - ( start + 1 - buffer ) );
retv[( *length )]->index = index;
retv[( *length )]->name = g_strndup ( start, l - 1 - ( start - buffer ) );
// Force trailing '\0'
retv[( *length ) + 1] = NULL;