From: Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr>
Date: Thu, 25 Jun 2015 22:23:33 +0000 (+0200)
Subject: Attempt to deal gracefully with allocation failures.
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=8f33afd87f118bfea52f50f7787843b694a38e72;p=oweals%2Fprocd.git

Attempt to deal gracefully with allocation failures.

These should probably not happen in practice, but having an explicit
error message may make debugging out-of-memory situations easier.
---

diff --git a/rcS.c b/rcS.c
index 8c72c19..b3e3c22 100644
--- a/rcS.c
+++ b/rcS.c
@@ -115,6 +115,10 @@ static void add_initd(struct runqueue *q, char *file, char *param)
 	char *p, *f;
 
 	s = calloc_a(sizeof(*s), &f, strlen(file) + 1, &p, strlen(param) + 1);
+	if (!s) {
+		ERROR("Out of memory in %s.\n", file);
+		return;
+	}
 	s->proc.task.type = &initd_type;
 	s->proc.task.complete = q_initd_complete;
 	if (!strcmp(param, "stop") || !strcmp(param, "shutdown"))
@@ -132,6 +136,11 @@ static int _rc(struct runqueue *q, char *path, const char *file, char *pattern,
 	glob_t gl;
 	int j;
 
+	if (!dir) {
+		ERROR("Out of memory in %s.\n", file);
+		return -1;
+	}
+
 	DEBUG(2, "running %s/%s%s %s\n", path, file, pattern, param);
 	sprintf(dir, "%s/%s%s", path, file, pattern);
 	if (glob(dir, GLOB_NOESCAPE | GLOB_MARK, NULL, &gl)) {
diff --git a/system.c b/system.c
index 77111f9..82c672e 100644
--- a/system.c
+++ b/system.c
@@ -144,6 +144,11 @@ static int system_board(struct ubus_context *ctx, struct ubus_object *obj,
 				continue;
 
 			dest = blobmsg_alloc_string_buffer(&b, key, strlen(val));
+			if (!dest) {
+				ERROR("Failed to allocate blob.\n");
+				continue;
+			}
+
 			while (val && (ch = *(val++)) != 0) {
 				switch (ch) {
 				case '\'':