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/* vi: set sw=4 ts=4: */
/*
* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Now does proper error checking on output and returns a failure exit code
* if one or more paths cannot be resolved.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//config:config REALPATH
//config: bool "realpath (1.1 kb)"
//config: default y
//config: help
//config: Return the canonicalized absolute pathname.
//config: This isn't provided by GNU shellutils, but where else does it belong.
//applet:IF_REALPATH(APPLET_NOFORK(realpath, realpath, BB_DIR_USR_BIN, BB_SUID_DROP, realpath))
//kbuild:lib-$(CONFIG_REALPATH) += realpath.o
/* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
//usage:#define realpath_trivial_usage
//usage: "FILE..."
//usage:#define realpath_full_usage "\n\n"
//usage: "Return the absolute pathnames of given FILE"
#include "libbb.h"
int realpath_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int realpath_main(int argc UNUSED_PARAM, char **argv)
{
int retval = EXIT_SUCCESS;
if (!*++argv) {
bb_show_usage();
}
do {
/* NOFORK: only one alloc is allowed; must free */
char *resolved_path = xmalloc_realpath(*argv);
if (resolved_path != NULL) {
puts(resolved_path);
free(resolved_path);
} else {
retval = EXIT_FAILURE;
bb_simple_perror_msg(*argv);
}
} while (*++argv);
fflush_stdout_and_exit(retval);
}
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