52 lines
857 B
C
52 lines
857 B
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s pid...\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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int ret = 0;
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char path[PATH_MAX];
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char target[PATH_MAX + sizeof(" (deleted)")];
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ssize_t n;
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ARGBEGIN {
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default:
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usage();
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} ARGEND;
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if (argc == 0)
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usage();
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for (; argc > 0; argc--, argv++) {
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n = snprintf(path, sizeof(path), "/proc/%s/cwd", *argv);
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if (n < 0 || n >= sizeof(path)) {
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errno = ESRCH;
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} else {
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n = readlink(path, target, sizeof(target) - 1);
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if (n >= 0) {
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target[n] = '\0';
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printf("%s: %s\n", *argv, target);
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continue;
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}
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}
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if (errno == ENOENT)
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errno = ESRCH;
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weprintf("%s:", *argv);
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ret = 1;
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}
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return ret;
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}
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