51 lines
833 B
C
51 lines
833 B
C
/* See LICENSE file for copyright and license details. */
|
|
#include <sys/stat.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "util.h"
|
|
|
|
static const char *
|
|
getpwd(const char *cwd)
|
|
{
|
|
const char *pwd;
|
|
struct stat cst, pst;
|
|
|
|
if (!(pwd = getenv("PWD")) || pwd[0] != '/' || stat(pwd, &pst) < 0)
|
|
return cwd;
|
|
if (stat(cwd, &cst) < 0)
|
|
eprintf("stat %s:", cwd);
|
|
|
|
return (pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino) ? pwd : cwd;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
eprintf("usage: %s [-LP]\n", argv0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char cwd[PATH_MAX];
|
|
char mode = 'L';
|
|
|
|
ARGBEGIN {
|
|
case 'L':
|
|
case 'P':
|
|
mode = ARGC();
|
|
break;
|
|
default:
|
|
usage();
|
|
} ARGEND
|
|
|
|
if (!getcwd(cwd, sizeof(cwd)))
|
|
eprintf("getcwd:");
|
|
puts((mode == 'L') ? getpwd(cwd) : cwd);
|
|
|
|
return fshut(stdout, "<stdout>");
|
|
}
|