Import of code from heimdal

This commit updates the code imported from heimdal to
42f9c644cf00be752f09d85a9664bf2e3502101c (switch-from-svn-to-git-1962-g42f9c64)

New files are:
	roken/write_pid.c

Change-Id: I7b48eae393b26c6afe9e9b7dd9f26d8db2d1c6fc
Reviewed-on: http://gerrit.openafs.org/3421
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>

diff --git a/src/external/heimdal-files b/src/external/heimdal-files
index 999d57a..d1998da 100644 (file)
--- a/src/external/heimdal-files
+++ b/src/external/heimdal-files
@@ -85,4 +85,5 @@ lib/roken/vwarnx.c            roken/vwarnx.c
 lib/roken/warn.c               roken/warn.c
 lib/roken/warnx.c              roken/warnx.c
 lib/roken/warnerr.c            roken/warnerr.c
+lib/roken/write_pid.c          roken/write_pid.c
 

diff --git a/src/external/heimdal/roken/write_pid.c b/src/external/heimdal/roken/write_pid.c
new file mode 100644 (file)
index 0000000..5059369
--- /dev/null
+++ b/src/external/heimdal/roken/write_pid.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include "roken.h"
+
+ROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL
+pid_file_write (const char *progname)
+{
+    char *ret = NULL;
+    FILE *fp;
+
+    if (asprintf (&ret, "%s%s.pid", _PATH_VARRUN, progname) < 0 || ret == NULL)
+       return NULL;
+    fp = fopen (ret, "w");
+    if (fp == NULL) {
+       free (ret);
+       return NULL;
+    }
+    fprintf (fp, "%u", (unsigned)getpid());
+    fclose (fp);
+    return ret;
+}
+
+ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
+pid_file_delete (char **filename)
+{
+    if (*filename != NULL) {
+       unlink (*filename);
+       free (*filename);
+       *filename = NULL;
+    }
+}
+
+#ifndef HAVE_PIDFILE
+static char *pidfile_path;
+
+static void
+pidfile_cleanup(void)
+{
+    if(pidfile_path != NULL)
+       pid_file_delete(&pidfile_path);
+}
+
+ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
+pidfile(const char *basename)
+{
+    if(pidfile_path != NULL)
+       return;
+    if(basename == NULL)
+       basename = getprogname();
+    pidfile_path = pid_file_write(basename);
+#if defined(HAVE_ATEXIT)
+    atexit(pidfile_cleanup);
+#elif defined(HAVE_ON_EXIT)
+    on_exit(pidfile_cleanup);
+#endif
+}
+#endif