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how to differentiate system call from library call
Post 302127699 by muru on Thursday 19th of July 2007 06:21:03 AM
07-19-2007
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LEARN ABOUT OSX
lchmod
LCHMOD(3) BSD Library Functions Manual LCHMOD(3) NAME
lchmod -- change mode of file SYNOPSIS
#include <sys/stat.h> #include <unistd.h> int lchmod(const char *path, mode_t flags); DESCRIPTION
The function lchmod() sets the file permission bits of the file specified by the pathname path to mode. See chmod(2) for the values of the flags. The lchmod() call is like chmod() except when the named file is a symbolic link, in which case lchmod() will change the flags of the link itself, rather than the file it points to. NOTE
Instead of being a system call, lchmod() is emulated using setattrlist(2). Not all file systems support setattrlist(2). RETURN VALUES
Upon successful completion, a value of 0 is returned. Otherwise, -1 is returned and the global variable errno is set to indicate the error. ERRORS
The lchmod() call may return the same errors as chmod(2) and setattrlist(2). SEE ALSO
chmod(2), setattrlist(2) BSD
Oct 31, 2005 BSD