Implement list-devices and list-partitions.

[libguestfs.git] / daemon / guestfsd.c

diff --git a/daemon/guestfsd.c b/daemon/guestfsd.c
index 9d110d7..a243c0b 100644 (file)
--- a/daemon/guestfsd.c
+++ b/daemon/guestfsd.c
@@ -231,6 +231,38 @@ usage (void)
 }
 
 int
+add_string (char ***argv, int *size, int *alloc, const char *str)
+{
+  char **new_argv;
+  char *new_str;
+
+  if (*size >= *alloc) {
+    *alloc += 64;
+    new_argv = realloc (*argv, *alloc * sizeof (char *));
+    if (new_argv == NULL) {
+      reply_with_perror ("realloc");
+      free_strings (*argv);
+      return -1;
+    }
+    *argv = new_argv;
+  }
+
+  if (str) {
+    new_str = strdup (str);
+    if (new_str == NULL) {
+      reply_with_perror ("strdup");
+      free_strings (*argv);
+    }
+  } else
+    new_str = NULL;
+
+  (*argv)[*size] = new_str;
+
+  (*size)++;
+  return 0;
+}
+
+int
 count_strings (char **argv)
 {
   int argc;
@@ -240,6 +272,20 @@ count_strings (char **argv)
   return argc;
 }
 
+static int
+compare (const void *vp1, const void *vp2)
+{
+  char * const *p1 = (char * const *) vp1;
+  char * const *p2 = (char * const *) vp2;
+  return strcmp (*p1, *p2);
+}
+
+void
+sort_strings (char **argv, int len)
+{
+  qsort (argv, len, sizeof (char *), compare);
+}
+
 void
 free_strings (char **argv)
 {
@@ -250,6 +296,16 @@ free_strings (char **argv)
   free (argv);
 }
 
+void
+free_stringslen (char **argv, int len)
+{
+  int i;
+
+  for (i = 0; i < len; ++i)
+    free (argv[i]);
+  free (argv);
+}
+
 /* This is a more sane version of 'system(3)' for running external
  * commands.  It uses fork/execvp, so we don't need to worry about
  * quoting of parameters, and it allows us to capture any error