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45 lines
815 B
C
45 lines
815 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include "util.h"
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static const char *getpwd(const char *cwd);
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int
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main(int argc, char *argv[])
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{
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char *cwd, c;
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char mode = 'L';
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while((c = getopt(argc, argv, "LP")) != -1)
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switch(c) {
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case 'L':
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case 'P':
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mode = c;
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break;
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default:
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exit(EXIT_FAILURE);
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}
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cwd = agetcwd();
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puts((mode == 'L') ? getpwd(cwd) : cwd);
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return EXIT_SUCCESS;
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}
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const char *
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getpwd(const char *cwd)
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{
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const char *pwd;
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struct stat cst, pst;
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if(!(pwd = getenv("PWD")) || pwd[0] != '/' || stat(pwd, &pst) == -1)
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return cwd;
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if(stat(cwd, &cst) == -1)
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eprintf("stat %s:", cwd);
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if(pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino)
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return pwd;
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else
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return cwd;
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}
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