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/* See LICENSE file for copyright and license details. */
#include "common.h"
int
true_main(int argc, char **argv)
{
(void) argc;
(void) argv;
return 0;
}
int
false_main(int argc, char **argv)
{
(void) argc;
(void) argv;
return 1;
}
BUILTIN_USAGE(pwd_usage, "[-L | -P]")
int
pwd_main(int argc, char **argv)
{
void (*usage)(void) = pwd_usage;
int physical = 0;
char *cwd = NULL;
size_t size = 64 / 2;
const char *pwd;
struct stat cst, pst;
ARGBEGIN {
case 'L':
physical = 0;
break;
case 'P':
physical = 1;
break;
default:
usage();
} ARGEND;
if (argc)
weprintf("ignoring operands"); /* other implementations either warn or are silent, they don't fail */
for (;;) {
cwd = erealloc(cwd, size *= 2);
if (getcwd(cwd, size))
break;
if (errno != ERANGE)
eprintf("getcwd %zu:", size);
}
if (physical || !(pwd = getenv("PWD")) || *pwd != '/' || stat(pwd, &pst) || stat(cwd, &cst))
puts(cwd);
else if (pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino)
puts(pwd);
else
puts(cwd);
free(cwd);
if (fflush(stdout) || ferror(stdout))
weprintf("fflush <stdout>:");
return 0;
}
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