How do I call the lstat system call in linux/c, not the lstat wrapper around it (lstat(3))? There is no SYS_lstat for syscall(SYS_lstat…
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How do I call the lstat system call in linux/c, not the lstat wrapper around it (lstat(3))? There is no SYS_lstat for syscall(SYS_lstat…
If you’re using the syscall directly, you need to make sure your definition of
struct statand the kernel’s definition agree. Also if you’re on a 32-bit machine you should probably never use the deprecatedlstatsyscall but instead thelstat64one, since the former will fail on large files. These and numerous other issues are why it’s a bad idea to make syscalls yourself instead of using the standard library; the latter wraps around all the legacy compatibility cruft and gives you a standards-compliant POSIX interface.