Add gss support from citi @ umich

[nfs-utils.git] / utils / gssd / err_util.c

diff --git a/utils/gssd/err_util.c b/utils/gssd/err_util.c
new file mode 100644 (file)
index 0000000..ca9b028
--- /dev/null
+++ b/utils/gssd/err_util.c
@@ -0,0 +1,92 @@
+/*
+  Copyright (c) 2004 The Regents of the University of Michigan.
+  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 University 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 ``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 REGENTS 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 <stdio.h>
+#include <stdarg.h>
+#include <syslog.h>
+#include <string.h>
+#include "err_util.h"
+
+static int verbosity = 0;
+static int fg = 0;
+
+static char message_buf[500];
+static char tmp_buf[500];
+
+void initerr(char *progname, int set_verbosity, int set_fg)
+{
+       verbosity = set_verbosity;
+       fg = set_fg;
+       if (!fg)
+               openlog(progname, LOG_PID, LOG_DAEMON);
+}
+
+void printerr(int priority, char *format, ...)
+{
+       va_list args;
+       int ret;
+
+       /* aggregate lines: only print buffer when we get to the end of a
+        * line or run out of space: */
+       va_start(args, format);
+       ret = vsnprintf(tmp_buf, sizeof(tmp_buf), format, args);
+       va_end(args);
+       if ((ret < 0) || (ret >= sizeof(tmp_buf)))
+               goto output;
+       if (strlen(tmp_buf) + strlen(message_buf) + 1 > sizeof(message_buf))
+                       goto output;
+       strcat(message_buf, tmp_buf);
+       if (tmp_buf[strlen(tmp_buf) - 1] == '\n')
+               goto output;
+       return;
+output:
+       priority -= verbosity;
+       if (priority < 0)
+               priority = 0;
+       if (fg) {
+               if (priority == 0)
+                       fprintf(stderr, "%s", message_buf);
+       } else {
+               int sys_pri;
+               switch (priority) {
+                       case 0:
+                               sys_pri = LOG_ERR;
+                               break;
+                       case 1:
+                               sys_pri = LOG_DEBUG;
+                               break;
+                       default:
+                               goto out;
+               }
+               syslog(sys_pri, "%s", message_buf);
+       }
+out:
+       memset(message_buf, 0, sizeof(message_buf));
+}