TOOLS/VFS: convert stack allocation at vfs_mount() to heap

src/tools/vfs/vfs_main.c

@@ -10,7 +10,9 @@
 
 #include "vfs_daemon.h"
 
+#include <ucs/sys/string.h>
 #include <ucs/debug/log_def.h>
+#include <ucs/debug/memtrack_int.h>
 #include <sys/wait.h>
 #include <limits.h>
 #include <stdlib.h>
@@ -151,10 +153,17 @@ static const char *vfs_get_process_name(int pid, char *buf, size_t max_length)
 
 int vfs_mount(int pid)
 {
- char mountpoint[PATH_MAX];
+ char *mountpoint = NULL;
  char mountopts[1024];
  char name[NAME_MAX];
  int fuse_fd, ret;
+ ucs_status_t status;
+
+ status = ucs_string_alloc_path_buffer(&mountpoint, "mountpoint");
+ if (status != UCS_OK) {
+ ret = -ENOMEM;
+ goto out;
+ }
 
  /* Add common mount options:
  * - File system name (source) : process name and pid
@@ -168,16 +177,17 @@ int vfs_mount(int pid)
  vfs_get_process_name(pid, name, sizeof(name)),
  (strlen(g_opts.mount_opts) > 0) ? "," : "", g_opts.mount_opts);
  if (ret >= sizeof(mountopts)) {
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
  }
 
  /* Create the mount point directory, and ignore "already exists" error */
- vfs_get_mountpoint(pid, mountpoint, sizeof(mountpoint));
+ vfs_get_mountpoint(pid, mountpoint, PATH_MAX);
  ret = mkdir(mountpoint, S_IRWXU);
  if ((ret < 0) && (errno != EEXIST)) {
  ret = -errno;
  vfs_error("failed to create directory '%s': %m", mountpoint);
- return ret;
+ goto out;
  }
 
  /* Mount a new FUSE filesystem in the mount point directory */
@@ -186,11 +196,17 @@ int vfs_mount(int pid)
  if (fuse_fd < 0) {
  vfs_error("fuse_open_channel(%s,opts=%s) failed: %m", mountpoint,
  mountopts);
- return fuse_fd;
+ ret = fuse_fd;
+ goto out;
  }
 
  vfs_log("mounted directory '%s' with fd %d", mountpoint, fuse_fd);
- return fuse_fd;
+
+ ret = fuse_fd;
+
+out:
+ ucs_free(mountpoint);
+ return ret;
 }
 
 int vfs_unmount(int pid)