Initial revision

diff --git a/lib/critical.c b/lib/critical.c
new file mode 100644 (file)
index 0000000..583d3de
--- /dev/null
+++ b/lib/critical.c
@@ -0,0 +1,74 @@
+/* $Header$
+ *
+ * Log and send a zephyrgram about any critical errors.
+ */
+
+#include <stdio.h>
+#include <sys/file.h>
+#include <zephyr/zephyr.h>
+
+
+/* log file for critical events that require human intervention */
+#define CRITERRLOG     "/u1/sms/critical.log"
+
+/* mode to create the file with */
+#define LOGFILEMODE    0644
+
+
+void critical_alert(instance, msg, args)
+  char *instance;              /* Instance for zephyr gram */
+  char *msg;                   /* printf format message */
+                               /* args = arguements, printf style */
+  /* This routine sends a class SMS zephyrgram of specified instance
+     and logs to a special logfile the message passed to it via msg
+     and args in printf format. */
+  /* Note: The part of this code that process the variable arguements
+     was stolen from sprintf(). */
+{
+    FILE _bufstr;              /* For _doprnt() */
+    int crit;                  /* File descriptor for critical log file */
+    char buf[BUFSIZ];          /* Holds the formatted message */
+
+    /* Put the fully formatted message into buf */
+    _bufstr._flag = _IOWRT + _IOSTRG;
+    _bufstr._ptr = buf;
+    _bufstr._cnt = BUFSIZ;
+    _doprnt(msg, &args, &_bufstr);
+    putc('\0', &_bufstr);
+
+    /* Send zephyr notice */
+    send_zgram(instance, buf);
+
+    /* Log message to critical file */
+    if ((crit = open(CRITERRLOG, 
+                    O_WRONLY | O_APPEND | O_CREAT, LOGFILEMODE)) >= 0)
+    {
+       write(crit,buf,strlen(buf));
+       close(crit);
+    }
+}
+
+
+
+/* Sends a zephyrgram of class "SMS", instance as a parameter.  Ignores
+ * errors while sending message.
+ */
+
+send_zgram(inst, msg)
+char *inst;
+char *msg;
+{
+    ZNotice_t znotice;
+
+    bzero (&znotice, sizeof (znotice));
+    znotice.z_kind = UNSAFE;
+    znotice.z_class = "SMS";
+    znotice.z_class_inst = inst;
+    znotice.z_default_format = "SMS $instance:\n $message\n";
+    (void) ZInitialize ();
+    znotice.z_message = msg;
+    znotice.z_message_len = strlen(msg) + 1;
+    znotice.z_opcode = "";
+    znotice.z_recipient = "";
+    ZSendNotice(&znotice, ZNOAUTH);
+}