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Implement fseek

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This commit is contained in:
Alex
2023-05-05 19:19:44 +03:00
parent d0ec077c09
commit f48511c6ff
3 changed files with 8 additions and 16 deletions
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19
libc/src/std/io/file.c
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@@ -35,22 +35,13 @@ int fclose(FILE *fp)
return syscall1(_FileClose, (uint64_t)KP);
}
int fseek(FILE *stream, long offset, int whence)
off_t fseek(FILE *stream, long offset, int whence)
{
switch (whence)
{
case SEEK_SET:
stream->offset = offset;
break;
case SEEK_CUR:
break;
case SEEK_END:
// stream->offset = syscall1(_FileLength, (uint64_t)File->KernelPrivate) + offset;
break;
default:
off_t new_offset = syscall3(_FileSeek, stream->KernelPrivate, offset, whence);
if (IsSyscallError(new_offset))
return -1;
}
return stream->offset;
stream->offset = new_offset;
return new_offset;
}
long ftell(FILE *stream)