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Diffstat (limited to 'src/saveload/oldloader.cpp')
| -rw-r--r-- | src/saveload/oldloader.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/saveload/oldloader.cpp b/src/saveload/oldloader.cpp index f6ebb48bc..ff911a899 100644 --- a/src/saveload/oldloader.cpp +++ b/src/saveload/oldloader.cpp @@ -250,10 +250,9 @@ static SavegameType DetermineOldSavegameType(FILE *f, char *title, const char *l /* Can't fseek to 0 as in tar files that is not correct */ long pos = ftell(f); - if (!CheckOldSavegameType(f, temp, lastof(temp), TTO_HEADER_SIZE)) { + if (pos >= 0 && !CheckOldSavegameType(f, temp, lastof(temp), TTO_HEADER_SIZE)) { type = SGT_TTD; - fseek(f, pos, SEEK_SET); - if (!CheckOldSavegameType(f, temp, lastof(temp), TTD_HEADER_SIZE)) { + if (fseek(f, pos, SEEK_SET) < 0 || !CheckOldSavegameType(f, temp, lastof(temp), TTD_HEADER_SIZE)) { type = SGT_INVALID; } } |