view toys/readlink.c @ 233:d4176f3f3835

Zap toys/ and instead create generated/ from contents of toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
author Rob Landley <>
date Sat, 19 Jan 2008 17:08:39 -0600
parents 52a0c06b2dad
children 163498bf547b
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/* vi: set sw=4 ts=4:
 * readlink.c - Return string representation of a symbolic link.
 * Copyright 2007 Rob Landley <>
 * Not in SUSv3.

	bool "readlink"
	default n
	  usage: readlink

	  Show what a symbolic link points to.

	bool "readlink -f"
	default n
	depends on READLINK
	  usage: readlink [-f]

	  -f	Show full cannonical path, with no symlinks in it.  Returns
		nonzero if nothing could currently exist at this location.

#include "toys.h"

void readlink_main(void)
	char *s;

	// Calculating full cannonical path?

	if (CFG_READLINK_F && toys.optflags) s = realpath(*toys.optargs, NULL);
	else s = xreadlink(*toys.optargs);

	if (s) {
		if (CFG_TOYBOX_FREE) free(s);
	} else toys.exitval = 1;