Signed-off-by: Mattias Andrée <[email protected]>
---
Makefile | 1 +
TODO | 1 -
pwdx.1 | 13 +++++++++++++
pwdx.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 67 insertions(+), 1 deletion(-)
create mode 100644 pwdx.1
create mode 100644 pwdx.c
diff --git a/Makefile b/Makefile
index 4ab1856..92d61ab 100644
--- a/Makefile
+++ b/Makefile
@@ -69,6 +69,7 @@ BIN = \
pidof \
pivot_root \
ps \
+ pwdx \
readahead \
respawn \
rmmod \
diff --git a/TODO b/TODO
index 3e89e68..21f5c20 100644
--- a/TODO
+++ b/TODO
@@ -19,7 +19,6 @@ mkswap [-L]
partprobe
pmap
ps (support for more options)
-pwdx
rfkill
rmgroup
rmuser
diff --git a/pwdx.1 b/pwdx.1
new file mode 100644
index 0000000..aadb6b4
--- /dev/null
+++ b/pwdx.1
@@ -0,0 +1,13 @@
+.Dd March 26, 2015
+.Dt PWDX 1
+.Os ubase
+.Sh NAME
+.Nm pwdx
+.Nd print working directory of other processes
+.Sh SYNOPSIS
+.Nm
+.Ar pid...
+.Sh DESCRIPTION
+.Nm
+Prints the current working directory for each
+.Ar pid .
diff --git a/pwdx.c b/pwdx.c
new file mode 100644
index 0000000..b9836b7
--- /dev/null
+++ b/pwdx.c
@@ -0,0 +1,53 @@
+/* See LICENSE file for copyright and license details. */
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static void
+usage(void)
+{
+ eprintf("usage: %s pid...\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ int ret = 0;
+ char path[sizeof("/proc//cwd") + 3 * sizeof(pid_t)];
+ char target[PATH_MAX + sizeof(" (deleted)")];
+ ssize_t n;
+
+ ARGBEGIN {
+ default:
+ usage();
+ } ARGEND;
+
+ if (argc == 0)
+ usage();
+
+ for (; argc > 0; argc--, argv++) {
+ if (strlen(*argv) > 3 * sizeof(pid_t)) {
+ fprintf(stderr, "%s: No such process\n", *argv);
+ ret = 1;
+ continue;
+ }
+ sprintf(path, "/proc/%s/cwd", *argv);
+ n = readlink(path, target, sizeof(target) - 1);
+ if (n >= 0) {
+ target[n] = '\0';
+ printf("%s: %s\n", *argv, target);
+ } else if (errno == ENOENT) {
+ fprintf(stderr, "%s: No such process\n", *argv);
+ ret = 1;
+ } else {
+ perror(*argv);
+ ret = 1;
+ }
+ }
+
+ return ret;
+}
--
2.7.3
