Module: xenomai-3
Branch: next
Commit: 2e470e72b323411697aeb8ec31250581edc0cc9f
URL:
http://git.xenomai.org/?p=xenomai-3.git;a=commit;h=2e470e72b323411697aeb8ec31250581edc0cc9f
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Jul 23 09:56:07 2015 +0200
boilerplate/ancillaries: add command lookup routine
---
include/boilerplate/ancillaries.h | 2 ++
lib/boilerplate/ancillaries.c | 24 ++++++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/include/boilerplate/ancillaries.h
b/include/boilerplate/ancillaries.h
index 47a025e..1ba320b 100644
--- a/include/boilerplate/ancillaries.h
+++ b/include/boilerplate/ancillaries.h
@@ -110,6 +110,8 @@ int get_static_cpu_count(void);
pid_t get_thread_pid(void);
+char *lookup_command(const char *cmd);
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/boilerplate/ancillaries.c b/lib/boilerplate/ancillaries.c
index 21aa667..3c6feef 100644
--- a/lib/boilerplate/ancillaries.c
+++ b/lib/boilerplate/ancillaries.c
@@ -25,6 +25,7 @@
#include <unistd.h>
#include <string.h>
#include <errno.h>
+#include <malloc.h>
#include "boilerplate/atomic.h"
#include "boilerplate/lock.h"
#include "boilerplate/time.h"
@@ -294,6 +295,29 @@ pid_t get_thread_pid(void)
return syscall(__NR_gettid);
}
+char *lookup_command(const char *cmd)
+{
+ const char *dirs[] = {
+ "/bin",
+ "/sbin",
+ "/usr/bin",
+ "/usr/sbin",
+ };
+ char *path;
+ int n, ret;
+
+ for (n = 0; n < sizeof(dirs) / sizeof(dirs[0]); n++) {
+ ret = asprintf(&path, "%s/%s", dirs[n], cmd);
+ if (ret < 0)
+ return NULL;
+ if (access(path, X_OK) == 0)
+ return path;
+ free(path);
+ }
+
+ return NULL;
+}
+
const char *config_strings[] = {
#include "config-dump.h"
NULL,
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