Wrote function to send email warning to users from smartd. Directive parsing...

Wrote function to send email warning to users from smartd.  Directive parsing command needs to set up mailinfo structure, and then the ataCheck and scsiCheck functions need to be modified to call printandmail function.


git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@227 4ea69e1a-61f1-4043-bf83-b5c94c648137

sm5/VERSION

-32
+33

sm5/smartd.c

@@ -35,6 +35,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
+#include <time.h>
 #include "atacmds.h"
 #include "scsicmds.h"
 #include "smartd.h"
@@ -44,7 +45,7 @@
 
 // CVS ID strings
 extern const char *CVSid1, *CVSid2;
-const char *CVSid6="$Id: smartd.c,v 1.52 2002/11/07 11:00:56 ballen4705 Exp $" 
+const char *CVSid6="$Id: smartd.c,v 1.53 2002/11/08 10:51:51 ballen4705 Exp $" 
 CVSID1 CVSID2 CVSID3 CVSID4 CVSID7;
 
 // global variable used for control of printing, passing arguments, etc.
@@ -86,6 +87,59 @@ void printout(int priority,char *fmt, ...){
   return;
 }
 
+
+void printandmail(mailinfo *mail, int priority, char *fmt, ...){
+  int pid;
+  va_list ap;
+  
+  // iitialize variable argument list, then log message to SYSLOG or
+  // stdout, then finish with argument list
+  va_start(ap,fmt);
+  printout(priority, fmt, ap);
+  va_end(ap);
+  
+  // See if user wants us to send mail
+  if (mail==NULL)
+    return;
+  
+  // Have we already sent a message about this?
+  if (mail->logged)
+    return;
+  
+  // Need to send a message -- fork and send
+  pid=fork();
+  
+  if (pid<0){
+    // We are parent, and were unable to fork to send email.  Log
+    // warning then return.
+    if (errno<sys_nerr)
+      printout(LOG_CRIT,"Unable to send email, %s, fork() failed\n", sys_errlist[errno]);
+    else
+      printout(LOG_CRIT,"Unable to send email, fork() failed\n");
+    return;
+  }
+  else if (pid) {
+    // we are the parent process, record the time of the mail message,
+    // and increment counter, then return.
+    mail->logged++;
+    mail->lastsent=time(NULL);
+    return;
+  }
+  else {
+    // We are the child process, send email
+    char command[1024], message[256];
+
+    // print warning string into message
+    va_start(ap, fmt);
+    vsnprintf(message, 256, fmt, ap);
+    va_end(ap);
+
+    // now construct a command to send this as EMAIL, and issue it.
+    snprintf(command,1024, "echo '%s' | mail -s 'smartd warning: S.M.A.R.T. errors' %s > /dev/null 2> /dev/null", message, mail->address);
+    exit(system(command));
+  }
+}
+
 // Printing function for watching ataprint commands, or losing them
 void pout(char *fmt, ...){
   va_list ap;

sm5/smartd.cpp

@@ -35,6 +35,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
+#include <time.h>
 #include "atacmds.h"
 #include "scsicmds.h"
 #include "smartd.h"
@@ -44,7 +45,7 @@
 
 // CVS ID strings
 extern const char *CVSid1, *CVSid2;
-const char *CVSid6="$Id: smartd.cpp,v 1.52 2002/11/07 11:00:56 ballen4705 Exp $" 
+const char *CVSid6="$Id: smartd.cpp,v 1.53 2002/11/08 10:51:51 ballen4705 Exp $" 
 CVSID1 CVSID2 CVSID3 CVSID4 CVSID7;
 
 // global variable used for control of printing, passing arguments, etc.
@@ -86,6 +87,59 @@ void printout(int priority,char *fmt, ...){
   return;
 }
 
+
+void printandmail(mailinfo *mail, int priority, char *fmt, ...){
+  int pid;
+  va_list ap;
+  
+  // iitialize variable argument list, then log message to SYSLOG or
+  // stdout, then finish with argument list
+  va_start(ap,fmt);
+  printout(priority, fmt, ap);
+  va_end(ap);
+  
+  // See if user wants us to send mail
+  if (mail==NULL)
+    return;
+  
+  // Have we already sent a message about this?
+  if (mail->logged)
+    return;
+  
+  // Need to send a message -- fork and send
+  pid=fork();
+  
+  if (pid<0){
+    // We are parent, and were unable to fork to send email.  Log
+    // warning then return.
+    if (errno<sys_nerr)
+      printout(LOG_CRIT,"Unable to send email, %s, fork() failed\n", sys_errlist[errno]);
+    else
+      printout(LOG_CRIT,"Unable to send email, fork() failed\n");
+    return;
+  }
+  else if (pid) {
+    // we are the parent process, record the time of the mail message,
+    // and increment counter, then return.
+    mail->logged++;
+    mail->lastsent=time(NULL);
+    return;
+  }
+  else {
+    // We are the child process, send email
+    char command[1024], message[256];
+
+    // print warning string into message
+    va_start(ap, fmt);
+    vsnprintf(message, 256, fmt, ap);
+    va_end(ap);
+
+    // now construct a command to send this as EMAIL, and issue it.
+    snprintf(command,1024, "echo '%s' | mail -s 'smartd warning: S.M.A.R.T. errors' %s > /dev/null 2> /dev/null", message, mail->address);
+    exit(system(command));
+  }
+}
+
 // Printing function for watching ataprint commands, or losing them
 void pout(char *fmt, ...){
   va_list ap;

sm5/smartd.h

@@ -23,7 +23,7 @@
  */
 
 #ifndef CVSID7
-#define CVSID7 "$Id: smartd.h,v 1.17 2002/10/30 19:16:44 ballen4705 Exp $\n"
+#define CVSID7 "$Id: smartd.h,v 1.18 2002/11/08 10:51:51 ballen4705 Exp $\n"
 #endif
 
 // Configuration file
@@ -68,6 +68,17 @@ typedef struct scsidevices_s {
 } scsidevices_t;
 
 
+// If user has requested email warning messages, then this structure
+// stores the information about them.
+typedef struct mailinfo {
+  // number of times an email has been sent
+  int logged;
+  // time last email was sent, as defined by man 2 time
+  time_t lastsent;
+  // address to send email to
+  char *address;
+} mailinfo;
+
 // Used to store a list of devices and options that were in the
 // configuration file.
 typedef struct configfile_s {
@@ -83,6 +94,8 @@ typedef struct configfile_s {
   char usage;
   char selftest;
   char errorlog;
+  // mailing information for each of the previous error types
+  mailinfo *mailinfop[6];
   // counts of ata and self-test errors.  Perhaps ought to be in the
   // atadevices_t structure.
   unsigned char selflogcount;