fw_printenv: Fix crash due to incorrect size for malloc'ed string.
Using sizeof gives the size of the pointer only, not the string. This
could easily lead to crashes when using -l argument.
Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c
index d93a915..fb4afa5 100644
--- a/tools/env/fw_env_main.c
+++ b/tools/env/fw_env_main.c
@@ -239,7 +239,7 @@
argv += optind;
if (env_opts.lockname) {
- lockname = malloc(sizeof(env_opts.lockname) +
+ lockname = malloc(strlen(env_opts.lockname) +
sizeof(CMD_PRINTENV) + 10);
if (!lockname) {
fprintf(stderr, "Unable allocate memory");