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READLINK(2) BSD System Calls Manual READLINK(2) NAME readlink -- read value of a symbolic link LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <unistd.h> int readlink(const char *path, char *buf, int bufsiz); DESCRIPTION The readlink() system call places the contents of the symbolic link path in the buffer buf, which has size bufsiz. The readlink() system call does not append a NUL character to buf. RETURN VALUES The call returns the count of characters placed in the buffer if it suc- ceeds, or a -1 if an error occurs, placing the error code in the global variable errno. ERRORS The readlink() system call will fail if: [ENOTDIR] A component of the path prefix is not a directory. [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters. [ENOENT] The named file does not exist. [EACCES] Search permission is denied for a component of the path prefix. [ELOOP] Too many symbolic links were encountered in translat- ing the pathname. [EINVAL] The named file is not a symbolic link. [EIO] An I/O error occurred while reading from the file sys- tem. [EFAULT] The buf argument extends outside the process's allo- cated address space. SEE ALSO lstat(2), stat(2), symlink(2), symlink(7) HISTORY The readlink() system call appeared in 4.2BSD. BSD June 4, 1993 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY
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