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File_length_file() should return 0 in case of error

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Thomas Bernard
2018-11-20 14:10:29 +01:00
parent ca843210d0
commit d21527c024
1 changed files with 6 additions and 1 deletions
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7
src/io.c
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@@ -490,8 +490,13 @@ unsigned long File_length_file(FILE * file)
long offset_backup;
long file_length;
offset_backup = ftell(file);
fseek(file, 0, SEEK_END);
if (offset_backup < 0)
return 0;
if (fseek(file, 0, SEEK_END) < 0
return 0;
file_length = ftell(file);
if (file_length < 0)
file_length = 0;
fseek(file, offset_backup, SEEK_SET);
return (unsigned long)file_length;
#else