X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=src%2Flaunch.c;h=e58add54362b7933ab28e023bff492462d8ceee0;hp=c89c69f800714c5a5a643bc49334b790caa43361;hb=3cf31c2fe0b356ea5c04117c5235b0a3cfe34971;hpb=8b2e60ce4b46e86da093ee64d4e0b0ae3c998d55

diff --git a/src/launch.c b/src/launch.c
index c89c69f..e58add5 100644
--- a/src/launch.c
+++ b/src/launch.c
@@ -63,6 +63,7 @@
 #include <netinet/in.h>
 
 #include "c-ctype.h"
+#include "ignore-value.h"
 #include "glthread/lock.h"
 
 #include "guestfs.h"
@@ -75,6 +76,34 @@ static int64_t timeval_diff (const struct timeval *x, const struct timeval *y);
 static int connect_unix_socket (guestfs_h *g, const char *sock);
 static int qemu_supports (guestfs_h *g, const char *option);
 
+#if 0
+static int qemu_supports_re (guestfs_h *g, const pcre *option_regex);
+
+static void compile_regexps (void) __attribute__((constructor));
+static void free_regexps (void) __attribute__((destructor));
+
+static void
+compile_regexps (void)
+{
+  const char *err;
+  int offset;
+
+#define COMPILE(re,pattern,options)                                     \
+  do {                                                                  \
+    re = pcre_compile ((pattern), (options), &err, &offset, NULL);      \
+    if (re == NULL) {                                                   \
+      ignore_value (write (2, err, strlen (err)));                      \
+      abort ();                                                         \
+    }                                                                   \
+  } while (0)
+}
+
+static void
+free_regexps (void)
+{
+}
+#endif
+
 /* Add a string to the current command line. */
 static void
 incr_cmdline_size (guestfs_h *g)
@@ -693,7 +722,7 @@ launch_appliance (guestfs_h *g)
         setpgid (0, 0);
 
       /* Writing to argv is hideously complicated and error prone.  See:
-       * http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/ps_status.c?rev=1.33.2.1;content-type=text%2Fplain
+       * http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/utils/misc/ps_status.c;hb=HEAD
        */
 
       /* Loop around waiting for one or both of the other processes to
@@ -1130,6 +1159,20 @@ qemu_supports (guestfs_h *g, const char *option)
   return strstr (g->qemu_help, option) != NULL;
 }
 
+#if 0
+/* As above but using a regex instead of a fixed string. */
+static int
+qemu_supports_re (guestfs_h *g, const pcre *option_regex)
+{
+  if (!g->qemu_help) {
+    if (test_qemu (g) == -1)
+      return -1;
+  }
+
+  return match (g, g->qemu_help, option_regex);
+}
+#endif
+
 /* Check if a file can be opened. */
 static int
 is_openable (guestfs_h *g, const char *path, int flags)