Slackware 14.2slackware-14.2

Thu Jun 30 20:26:57 UTC 2016
Slackware 14.2 x86_64 stable is released!

The long development cycle (the Linux community has lately been living in
"interesting times", as they say) is finally behind us, and we're proud to
announce the release of Slackware 14.2.  The new release brings many updates
and modern tools, has switched from udev to eudev (no systemd), and adds
well over a hundred new packages to the system.  Thanks to the team, the
upstream developers, the dedicated Slackware community, and everyone else
who pitched in to help make this release a reality.

The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a dual-sided
32-bit/64-bit x86/x86_64 DVD.  Please consider supporting the Slackware
project by picking up a copy from store.slackware.com.  We're taking
pre-orders now, and offer a discount if you sign up for a subscription.

Have fun!  :-)

1 files changed, 242 insertions, 0 deletions

diff --git a/source/xap/xsane/xsane-0.999-signal-handling.patch b/source/xap/xsane/xsane-0.999-signal-handling.patch
new file mode 100644
index 000000000..b9da71a1e
--- /dev/null
+++ b/source/xap/xsane/xsane-0.999-signal-handling.patch
@@ -0,0 +1,242 @@
+From 3b5d3b7e1f320b0bfbe48024a586c0a22375aa2d Mon Sep 17 00:00:00 2001
+From: Nils Philippsen <nils@redhat.com>
+Date: Thu, 3 Jul 2014 10:38:03 +0200
+Subject: [PATCH] patch: signal-handling
+
+Squashed commit of the following:
+
+commit 1e9e8cf5edc469114c8eadf46817cd5c1261b35c
+Author: Nils Philippsen <nils@redhat.com>
+Date:   Thu Jul 3 10:14:52 2014 +0200
+
+    don't use g_unix_open_pipe(), g_unix_fd_add()
+
+    These functions have only recently been added to glib. Use pipe()/
+    fcntl() and g_io_channel_unix_new()/g_io_add_watch() instead which are
+    available in the minimum glib version needed for gtk+-2.x.
+
+commit acbdf3f693d3d2a78ee7490ca1bf76957daf00cf
+Author: Nils Philippsen <nils@redhat.com>
+Date:   Thu Mar 13 13:38:12 2014 +0100
+
+    separate signal handlers in top and bottom half
+
+    This is to avoid race-conditions occurring when a signal is received
+    while the signal handler is not yet finished. It also avoids calling
+    non-reentrant functions from a signal handler. The top half (the real
+    signal handler) just writes a character into a pipe which gets picked up
+    and serviced by the bottom half from the normal event loop, this
+    serializes things and makes using non-reentrant functions safe.
+---
+ src/xsane.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++------
+ 1 file changed, 136 insertions(+), 15 deletions(-)
+
+diff --git a/src/xsane.c b/src/xsane.c
+index 2b9211b..fc2ebbe 100644
+--- a/src/xsane.c
++++ b/src/xsane.c
+@@ -47,6 +47,7 @@
+ #endif
+ 
+ #include <sys/wait.h>
++#include <glib-unix.h>
+ 
+ #include <stdarg.h>
+ 
+@@ -121,6 +122,7 @@ static const Preferences_medium_t pref_default_medium[]=
+ 
+ int DBG_LEVEL = 0;
+ static guint xsane_resolution_timer = 0;
++static int xsane_signal_pipe[2];
+ 
+ /* ---------------------------------------------------------------------------------------------------------------------- */
+ 
+@@ -161,8 +163,11 @@ void xsane_pref_save(void);
+ static int xsane_pref_restore(void);
+ static void xsane_pref_save_media(void);
+ static void xsane_pref_restore_media(void);
+-static RETSIGTYPE xsane_quit_handler(int signal);
+-static RETSIGTYPE xsane_sigchld_handler(int signal);
++static RETSIGTYPE xsane_signal_handler_top_half(int signal);
++static gboolean xsane_signal_handler_bottom_half(GIOChannel *source,
++                                                 GIOCondition condition,
++                                                 gpointer user_data);
++static void xsane_sigchld_handler(void);
+ static void xsane_quit(void);
+ static void xsane_exit(void);
+ static gint xsane_standard_option_win_delete(GtkWidget *widget, gpointer data);
+@@ -2296,16 +2301,119 @@ static void xsane_pref_restore_media(void)
+ 
+ /* ---------------------------------------------------------------------------------------------------------------------- */
+ 
+-static RETSIGTYPE xsane_quit_handler(int signal)
++static RETSIGTYPE xsane_signal_handler_top_half(int signal)
+ {
+-  DBG(DBG_proc, "xsane_quit_handler\n");
++  const char *msg_func = "xsane_signal_handler_top_half(): ";
++  const char *msg_short_write = "Short write() while processing signal.\n";
++  const char *msg_err = "Error during write().\n";
++  char sig_char;
++  ssize_t written;
++  int errno_saved = errno;
+ 
+-  xsane_quit();
++  switch (signal)
++  {
++    case SIGTERM:
++      sig_char = 't';
++      break;
++    case SIGINT:
++      sig_char = 'i';
++      break;
++    case SIGHUP:
++      sig_char = 'h';
++      break;
++    case SIGCHLD:
++      sig_char = 'c';
++      break;
++    default:
++      sig_char = '?';
++      break;
++  }
++
++  if ((written = write(xsane_signal_pipe[1], &sig_char, 1)) <= 0)
++  {
++    /* At this point, all bets are off. Salvage what we can. */
++
++    const char *msg = (written == 0) ? msg_short_write : msg_err;
++
++    if ((write(STDERR_FILENO, msg_func, strlen(msg_func)) < 0) ||
++        (write(STDERR_FILENO, msg, strlen(msg)) < 0))
++    {
++      /* This is really a no-op, but at this point it doesn't really matter
++       * anymore if the writes succeeded or not. */
++      goto bail_out;
++    }
++
++bail_out:
++    /* Ignore SIGCHLD errors, zombie processes don't hurt that much. */
++    if (signal != SIGCHLD)
++    {
++      struct SIGACTION act;
++      memset(&act, 0, sizeof(act));
++      act.sa_handler = SIG_DFL;
++      sigaction(signal, &act, NULL);
++      raise(signal);
++    }
++  }
++
++  errno = errno_saved;
++}
++
++static gboolean xsane_signal_handler_bottom_half(GIOChannel *source,
++                                                 GIOCondition condition,
++                                                 gpointer user_data)
++{
++  char sig_char;
++  ssize_t readlen;
++
++  DBG(DBG_proc, "xsane_signal_handler_bottom_half\n");
++
++  while ((readlen = read(xsane_signal_pipe[0], &sig_char, 1)) != 0)
++  {
++    if (readlen < 0)
++    {
++      if (errno == EINTR)
++      {
++        /* if interrupted by signal, just repeat reading */
++        continue;
++      }
++      else
++      {
++        break;
++      }
++    }
++
++    switch (sig_char)
++    {
++      case 't':
++      case 'i':
++      case 'h':
++        xsane_quit();
++        break;
++      case 'c':
++        xsane_sigchld_handler();
++        break;
++      default:
++        DBG(DBG_error,
++            "Don't know how to cope with character-encoded signal: '%c'\n",
++            sig_char);
++        break;
++    }
++  }
++
++  /* previous invocation might have read more than it should, so ignore
++   * EAGAIN/EWOULDBLOCK */
++  if (readlen < 0 && errno != EAGAIN && errno != EWOULDBLOCK)
++  {
++    DBG(DBG_error, "Error while reading from pipe: %d '%s'\n", errno,
++        strerror(errno));
++  }
++
++  return TRUE;
+ }
+ 
+ /* ---------------------------------------------------------------------------------------------------------------------- */
+ 
+-static RETSIGTYPE xsane_sigchld_handler(int signal)
++static void xsane_sigchld_handler(void)
+ {
+  int status;
+  XsaneChildprocess **childprocess_listptr = &xsane.childprocess_list;
+@@ -6026,6 +6134,8 @@ void xsane_interface(int argc, char **argv)
+ {
+  struct SIGACTION act;
+ 
++  GIOChannel *gio_pipe_read;
++
+   DBG(DBG_proc, "xsane_interface\n");
+ 
+   xsane.info_label = NULL;
+@@ -6069,18 +6179,29 @@ void xsane_interface(int argc, char **argv)
+     }
+   }
+ 
++  if ((pipe(xsane_signal_pipe) == -1) ||
++      (fcntl(xsane_signal_pipe[0], F_SETFD, FD_CLOEXEC) == -1) ||
++      (fcntl(xsane_signal_pipe[0], F_SETFL, O_NONBLOCK) == -1) ||
++      (fcntl(xsane_signal_pipe[1], F_SETFD, FD_CLOEXEC) == -1) ||
++      (fcntl(xsane_signal_pipe[1], F_SETFL, O_NONBLOCK) == -1) ||
++      !(gio_pipe_read = g_io_channel_unix_new(xsane_signal_pipe[0])) ||
++      !g_io_add_watch(gio_pipe_read, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_PRI,
++          xsane_signal_handler_bottom_half, NULL))
++  {
++    DBG(DBG_error,
++        "Couldn't create signal handling pipe, set flags on it or install\n"
++        "bottom half of handler.\n");
++    exit(1);
++  }
++
+   /* define SIGTERM, SIGINT, SIGHUP-handler to make sure that e.g. all temporary files are deleted */
+   /* when xsane gets such a signal */
+   memset(&act, 0, sizeof(act));
+-  act.sa_handler = xsane_quit_handler;
+-  sigaction(SIGTERM, &act, 0);
+-  sigaction(SIGINT,  &act, 0);
+-  sigaction(SIGHUP,  &act, 0);
+-
+-  /* add a signal handler that cleans up zombie child processes */
+-  memset(&act, 0, sizeof(act));
+-  act.sa_handler = xsane_sigchld_handler;
+-  sigaction(SIGCHLD, &act, 0);
++  act.sa_handler = xsane_signal_handler_top_half;
++  sigaction(SIGTERM, &act, NULL);
++  sigaction(SIGINT,  &act, NULL);
++  sigaction(SIGHUP,  &act, NULL);
++  sigaction(SIGCHLD, &act, NULL);
+ 
+   gtk_main();
+   sane_exit();
+-- 
+1.9.3
+