conf: kill PATH_MAX bytes

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

diff --git a/src/lxc/conf.c b/src/lxc/conf.c
index e0b37bd2109c7b661a443d2610d717009d0a3032..10a95d491bd0bf882d0951993940efdd5106e590 100644 (file)
--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -2128,14 +2128,13 @@ static inline int mount_entry_on_systemfs(struct lxc_rootfs *rootfs,
 }
 
 static int mount_entry_on_absolute_rootfs(struct mntent *mntent,
-                                         const struct lxc_rootfs *rootfs,
+                                         struct lxc_rootfs *rootfs,
                                          const char *lxc_name,
                                          const char *lxc_path)
 {
        int offset;
        char *aux;
        const char *lxcpath;
-       char path[PATH_MAX];
        int ret = 0;
 
        lxcpath = lxc_global_config_value("lxc.lxcpath");
@@ -2145,13 +2144,13 @@ static int mount_entry_on_absolute_rootfs(struct mntent *mntent,
        /* If rootfs->path is a blockdev path, allow container fstab to use
         * <lxcpath>/<name>/rootfs" as the target prefix.
         */
-       ret = snprintf(path, PATH_MAX, "%s/%s/rootfs", lxcpath, lxc_name);
-       if (ret < 0 || ret >= PATH_MAX)
+       ret = snprintf(rootfs->buf, sizeof(rootfs->buf), "%s/%s/rootfs", lxcpath, lxc_name);
+       if (ret < 0 || ret >= sizeof(rootfs->buf))
                goto skipvarlib;
 
-       aux = strstr(mntent->mnt_dir, path);
+       aux = strstr(mntent->mnt_dir, rootfs->buf);
        if (aux) {
-               offset = strlen(path);
+               offset = strlen(rootfs->buf);
                goto skipabs;
        }
 
@@ -2162,11 +2161,11 @@ skipvarlib:
        offset = strlen(rootfs->path);
 
 skipabs:
-       ret = snprintf(path, PATH_MAX, "%s/%s", rootfs->mount, aux + offset);
-       if (ret < 0 || ret >= PATH_MAX)
+       ret = snprintf(rootfs->buf, sizeof(rootfs->buf), "%s/%s", rootfs->mount, aux + offset);
+       if (ret < 0 || ret >= sizeof(rootfs->buf))
                return -1;
 
-       return mount_entry_on_generic(mntent, path, rootfs, lxc_name, lxc_path);
+       return mount_entry_on_generic(mntent, rootfs->buf, rootfs, lxc_name, lxc_path);
 }
 
 static int mount_entry_on_relative_rootfs(struct mntent *mntent,