41 lines
1,023 B
C
41 lines
1,023 B
C
/* readlink.c - Return string representation of a symbolic link.
|
|
*
|
|
* Copyright 2007 Rob Landley <rob@landley.net>
|
|
|
|
USE_READLINK(NEWTOY(readlink, "<1>1fenq[-fe]", TOYFLAG_USR|TOYFLAG_BIN))
|
|
|
|
config READLINK
|
|
bool "readlink"
|
|
default y
|
|
help
|
|
usage: readlink FILE
|
|
|
|
With no options, show what symlink points to, return error if not symlink.
|
|
|
|
Options for producing cannonical paths (all symlinks/./.. resolved):
|
|
|
|
-e cannonical path to existing entry (fail if missing)
|
|
-f full path (fail if directory missing)
|
|
-n no trailing newline
|
|
-q quiet (no output, just error code)
|
|
*/
|
|
|
|
#define FOR_readlink
|
|
#include "toys.h"
|
|
|
|
void readlink_main(void)
|
|
{
|
|
char *s;
|
|
|
|
// Calculating full cannonical path?
|
|
|
|
if (toys.optflags & (FLAG_f|FLAG_e))
|
|
s = xabspath(*toys.optargs, toys.optflags & FLAG_e);
|
|
else s = xreadlink(*toys.optargs);
|
|
|
|
if (s) {
|
|
if (!(toys.optflags & FLAG_q))
|
|
xprintf((toys.optflags & FLAG_n) ? "%s" : "%s\n", s);
|
|
if (CFG_TOYBOX_FREE) free(s);
|
|
} else toys.exitval = 1;
|
|
}
|