| /* 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>"); |
| } |