reduce stack usage

3 files changed, 5 insertions, 5 deletions

diff --git a/main.c b/main.c
index f180c30..3f16cd5 100644
--- a/main.c
+++ b/main.c
@@ -98,7 +98,7 @@ retry:
 
 	cur = buf;
 	buf = proc->log_buf;
-	while ((cur = memchr(cur, '\n', len))) {
+	while (len > 0 && (cur = memchr(cur, '\n', len))) {
 		*cur = 0;
 
 		if (!proc->log_overflow)
diff --git a/proto-shell.c b/proto-shell.c
index c2a6d00..3b5311c 100644
--- a/proto-shell.c
+++ b/proto-shell.c
@@ -332,8 +332,8 @@ out:
 static int
 proto_shell_run_command(struct proto_shell_state *state, struct blob_attr **tb)
 {
-	char *argv[64];
-	char *env[32];
+	static char *argv[64];
+	static char *env[32];
 
 	if (!tb[NOTIFY_COMMAND])
 		goto error;
diff --git a/system-linux.c b/system-linux.c
index 44332a2..8b9189d 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -101,7 +101,7 @@ static void system_set_sysctl(const char *path, const char *val)
 
 static void system_set_dev_sysctl(const char *path, const char *device, const char *val)
 {
-	char buf[256];
+	static char buf[256];
 
 	snprintf(buf, sizeof(buf), path, val);
 	system_set_sysctl(buf, val);
@@ -367,7 +367,7 @@ out:
  */
 void system_if_clear_state(struct device *dev)
 {
-	char buf[256];
+	static char buf[256];
 	char *bridge;
 
 	if (dev->external)