commands_utils: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/commands_utils.c b/src/lxc/commands_utils.c
index f48f1188c5e89dfc511fa01e6c54e257a8e31424..5545744b6e57293702be7118ab499fe5c7195884 100644 (file)
--- a/src/lxc/commands_utils.c
+++ b/src/lxc/commands_utils.c
@@ -38,6 +38,7 @@
 #include "initutils.h"
 #include "log.h"
 #include "lxclock.h"
+#include "memory_utils.h"
 #include "monitor.h"
 #include "state.h"
 #include "utils.h"
@@ -102,9 +103,9 @@ int lxc_make_abstract_socket_name(char *path, size_t pathlen,
                                  const char *hashed_sock_name,
                                  const char *suffix)
 {
+       __do_free char *tmppath = NULL;
        const char *name;
        char *offset;
-       char *tmppath;
        size_t len;
        size_t tmplen;
        uint64_t hash;
@@ -153,7 +154,7 @@ int lxc_make_abstract_socket_name(char *path, size_t pathlen,
 
        /* ret >= len; lxcpath or name is too long.  hash both */
        tmplen = strlen(name) + strlen(lxcpath) + 2;
-       tmppath = alloca(tmplen);
+       tmppath = must_realloc(NULL, tmplen);
        ret = snprintf(tmppath, tmplen, "%s/%s", lxcpath, name);
        if (ret < 0 || (size_t)ret >= tmplen) {
                ERROR("Failed to create abstract socket name");