perf tools: Add rm_rf() utility function
The rm_rf() function does same as the shell command 'rm -rf' which
removes all directory entries recursively.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1431909055-21442-3-git-send-email-namhyung@kernel.org
Link: http://lkml.kernel.org/r/20150130150256.GF6188@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 4ee6d0d..6104afb 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -72,6 +72,49 @@
return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
}
+int rm_rf(char *path)
+{
+ DIR *dir;
+ int ret = 0;
+ struct dirent *d;
+ char namebuf[PATH_MAX];
+
+ dir = opendir(path);
+ if (dir == NULL)
+ return 0;
+
+ while ((d = readdir(dir)) != NULL && !ret) {
+ struct stat statbuf;
+
+ if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+ continue;
+
+ scnprintf(namebuf, sizeof(namebuf), "%s/%s",
+ path, d->d_name);
+
+ ret = stat(namebuf, &statbuf);
+ if (ret < 0) {
+ pr_debug("stat failed: %s\n", namebuf);
+ break;
+ }
+
+ if (S_ISREG(statbuf.st_mode))
+ ret = unlink(namebuf);
+ else if (S_ISDIR(statbuf.st_mode))
+ ret = rm_rf(namebuf);
+ else {
+ pr_debug("unknown file: %s\n", namebuf);
+ ret = -1;
+ }
+ }
+ closedir(dir);
+
+ if (ret < 0)
+ return ret;
+
+ return rmdir(path);
+}
+
static int slow_copyfile(const char *from, const char *to, mode_t mode)
{
int err = -1;