31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
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diff -up xsane-0.995/src/xsane.c.close-fds xsane-0.995/src/xsane.c
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--- xsane-0.995/src/xsane.c.close-fds 2007-09-28 17:24:56.000000000 +0200
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+++ xsane-0.995/src/xsane.c 2008-07-15 17:48:17.000000000 +0200
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@@ -3681,6 +3681,8 @@ static void xsane_show_doc_via_nsr(GtkWi
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char *arg[5];
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struct stat st;
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char netscape_lock_path[PATH_MAX];
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+ int open_max;
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+ int i;
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DBG(DBG_proc, "xsane_show_doc_via_nsr(%s)\n", name);
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@@ -3725,6 +3727,17 @@ static void xsane_show_doc_via_nsr(GtkWi
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ipc_file = fdopen(xsane.ipc_pipefd[1], "w");
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}
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+ open_max = (int) sysconf (_SC_OPEN_MAX);
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+
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+ DBG(DBG_info, "closing unneeded file descriptors\n");
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+
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+ /* leave stdin, stdout, stderr alone */
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+ for (i = 3; i < open_max; i++) {
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+ /* xsane.ipc_pipefd[0] is closed by now */
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+ if (i != xsane.ipc_pipefd[1])
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+ close (i);
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+ }
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+
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DBG(DBG_info, "trying to change user id for new subprocess:\n");
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DBG(DBG_info, "old effective uid = %d\n", (int) geteuid());
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setuid(getuid());
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