1 files changed, 104 insertions, 0 deletions
diff --git a/src/arm/do_start_process.c b/src/arm/do_start_process.c
new file mode 100644
index 0000000..865ea8e
--- /dev/null
+++ b/src/arm/do_start_process.c
@@ -0,0 +1,104 @@
+/**
+ * Actually start a process.  All of the arguments given to this
+ * function are strings that are used for the "argv" array.  However,
+ * if those strings contain spaces, the given argument is split into
+ * multiple argv entries without spaces.  Similarly, if an argument is
+ * the empty string, it is skipped.  This function has the inherent
+ * limitation that it does NOT allow passing command line arguments
+ * with spaces to the new process.
+ *
+ * @param lsocks array of listen sockets to dup starting at fd3 (systemd-style), or NULL
+ * @param first_arg first argument for argv (may be an empty string)
+ * @param ... more arguments, NULL terminated
+ * @return handle of the started process, NULL on error
+ */
+static struct GNUNET_OS_Process *
+do_start_process (int pipe_control,
+		  const SOCKTYPE * lsocks, const char *first_arg, ...)
+{
+  va_list ap;
+  char **argv;
+  unsigned int argv_size;
+  const char *arg;
+  const char *rpos;
+  char *pos;
+  char *cp;
+  const char *last;
+  struct GNUNET_OS_Process *proc;
+
+  argv_size = 1;
+  va_start (ap, first_arg);
+  arg = first_arg;
+  last = NULL;
+/* *INDENT-OFF* */
+  do
+    {
+/* *INDENT-ON* */
+  rpos = arg;
+  while ('\0' != *rpos)
+    {
+      if (' ' == *rpos)
+	{
+	  if (last != NULL)
+	    argv_size++;
+	  last = NULL;
+	  while (' ' == *rpos)
+	    rpos++;
+	}
+      if ((last == NULL) && (*rpos != '\0'))
+	last = rpos;
+      if (*rpos != '\0')
+	rpos++;
+    }
+  if (last != NULL)
+    argv_size++;
+/* *INDENT-OFF* */
+    }
+  while (NULL != (arg = (va_arg (ap, const char*))));
+/* *INDENT-ON* */
+  va_end (ap);
+
+  argv = GNUNET_malloc (argv_size * sizeof (char *));
+  argv_size = 0;
+  va_start (ap, first_arg);
+  arg = first_arg;
+  last = NULL;
+/* *INDENT-OFF* */
+  do
+    {
+/* *INDENT-ON* */
+  cp = GNUNET_strdup (arg);
+  pos = cp;
+  while ('\0' != *pos)
+    {
+      if (' ' == *pos)
+	{
+	  *pos = '\0';
+	  if (last != NULL)
+	    argv[argv_size++] = GNUNET_strdup (last);
+	  last = NULL;
+	  pos++;
+	  while (' ' == *pos)
+	    pos++;
+	}
+      if ((last == NULL) && (*pos != '\0'))
+	last = pos;
+      if (*pos != '\0')
+	pos++;
+    }
+  if (last != NULL)
+    argv[argv_size++] = GNUNET_strdup (last);
+  last = NULL;
+  GNUNET_free (cp);
+/* *INDENT-OFF* */
+    }
+  while (NULL != (arg = (va_arg (ap, const char*))));
+/* *INDENT-ON* */
+  va_end (ap);
+  argv[argv_size] = NULL;
+  proc = GNUNET_OS_start_process_v (pipe_control, lsocks, argv[0], argv);
+  while (argv_size > 0)
+    GNUNET_free (argv[--argv_size]);
+  GNUNET_free (argv);
+  return proc;
+}