From 8b372c9248930ae29763202121434d3d676d0f30 Mon Sep 17 00:00:00 2001
From: Martin Schulze <joey@finlandia.infodrom.north.de>
Date: Mon, 4 Mar 2002 18:50:02 +0100
Subject: Imported Debian patch 0.50-5.1

---
 frontend/xsane-back-gtk.c |  2 +-
 frontend/xsane.c          | 35 +++++++++++++++++++++++++++++++++++
 frontend/xsane.h          |  4 ++++
 3 files changed, 40 insertions(+), 1 deletion(-)

(limited to 'frontend')

diff --git a/frontend/xsane-back-gtk.c b/frontend/xsane-back-gtk.c
index 8bde762..b77b585 100644
--- a/frontend/xsane-back-gtk.c
+++ b/frontend/xsane-back-gtk.c
@@ -110,7 +110,7 @@ int xsane_back_gtk_make_path(size_t buf_size, char *buf,
   }
   else /* make path to temporary file */
   {
-    snprintf(buf, buf_size, "%s", PATH_SANE_TMP);
+    snprintf(buf, buf_size, "%s", path_sane_tmp);
   }
 
   len = strlen(buf);
diff --git a/frontend/xsane.c b/frontend/xsane.c
index 6302168..89a54a0 100644
--- a/frontend/xsane.c
+++ b/frontend/xsane.c
@@ -44,6 +44,11 @@
 
 /* ---------------------------------------------------------------------------------------------------------------------- */
 
+char *path_sane_tmp = NULL;
+extern int errno;
+
+/* ---------------------------------------------------------------------------------------------------------------------- */
+
 struct option long_options[] =
 {
   {"help", no_argument, 0, 'h'},
@@ -4685,9 +4690,39 @@ void xsane_interface(int argc, char **argv)
 
 int main(int argc, char **argv)
 {
+  int len;
+  char *login;
+  struct stat st;
+
   dialog = 0;
   memset(&xsane, 0, sizeof(xsane)); /* set all values in xsane to 0 */
 
+  /* Create directory PATH_SANE_TMP/xsane-$uid */
+  login = getlogin ();
+  if (login == NULL) {
+    if ((login = (char *)malloc (10)) == NULL)
+      return 1;
+    snprintf (login, 10, "%d", getuid ());
+  }
+
+  len = strlen (login) + strlen (PATH_SANE_TMP) + 8; 
+  if ((path_sane_tmp = (char *)malloc (len)) == NULL)
+    return 1;
+  sprintf (path_sane_tmp, "%s/xsane-%s", PATH_SANE_TMP, login);
+
+  if (lstat (path_sane_tmp, &st)) {
+    if (errno == ENOENT) {
+      if (mkdir (path_sane_tmp, 0700))
+	return 1; /* Can't create dir, huh? */
+    } else
+      return 1;	/* Can't stat, huh? */
+  } else {
+    if (st.st_uid != getuid()) {
+      fprintf (stderr, "%s not owned by you, security problem?\n", path_sane_tmp);
+      return 1;
+    }
+  }
+
   umask(XSANE_DEFAULT_UMASK); /* define permissions of new files */ 
 
   xsane.sensitivity         = TRUE;
diff --git a/frontend/xsane.h b/frontend/xsane.h
index 69e6d2c..ad82912 100644
--- a/frontend/xsane.h
+++ b/frontend/xsane.h
@@ -144,6 +144,10 @@ extern int xsane_scanmode_number[];
 
 /* ---------------------------------------------------------------------------------------------------------------------- */
 
+extern char *path_sane_tmp;
+
+/* ---------------------------------------------------------------------------------------------------------------------- */
+
 #ifndef PATH_MAX
 # define PATH_MAX	1024
 #endif
-- 
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