From 5012151295bef1f99944041fd19083ffc7c3f912 Mon Sep 17 00:00:00 2001
From: Jeffrey Hutzelman <jhutz@cmu.edu>
Date: Thu, 15 May 2003 17:23:37 +0000
Subject: [PATCH] salvage-allow-hardlinked-logs-by-date-20030515

FIXES 1259

a switch causes salvager to create salvagelog hardlinks by date so
logs are preserved forever
---
 src/vol/vol-salvage.c | 47 ++++++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 10 deletions(-)

diff --git a/src/vol/vol-salvage.c b/src/vol/vol-salvage.c
index 9e36a5b27d..cd1068e718 100644
--- a/src/vol/vol-salvage.c
+++ b/src/vol/vol-salvage.c
@@ -398,6 +398,9 @@ char * ToString(char *s);
 void AskOffline(VolumeId volumeId);
 void AskOnline(VolumeId volumeId, char *partition);
 void CheckLogFile(void);
+#ifndef AFS_NT40_ENV
+void TimeStampLogFile(void);
+#endif
 void ClearROInUseBit(struct VolumeSummary *summary);
 void CopyAndSalvage(register struct DirSummary *dir);
 int CopyInode(Device device, Inode inode1, Inode inode2, int rwvolume);
@@ -580,18 +583,21 @@ static int handleit(struct cmd_syndesc *as)
     }
 
 #ifndef AFS_NT40_ENV /* ignore options on NT */
-	if ( ti = as->parms[16].items) { /* -syslog */
-		useSyslog = 1;
-		ShowLog = 0;
-	}
-	if ( ti = as->parms[17].items) { /* -syslogfacility */
-		useSyslogFacility = atoi(ti->data);
-	}
+    if ( ti = as->parms[16].items) { /* -syslog */
+	useSyslog = 1;
+	ShowLog = 0;
+    }
+    if ( ti = as->parms[17].items) { /* -syslogfacility */
+	useSyslogFacility = atoi(ti->data);
+    }
+    
+    if (ti = as->parms[18].items) {  /* -datelogs */
+	TimeStampLogFile();
+    }
 #endif
-
-
+  
 #ifdef FAST_RESTART
-    if (ti = as->parms[18].items) {  /* -DontSalvage */
+    if (ti = as->parms[19].items) {  /* -DontSalvage */
 	char *msg = "Exiting immediately without salvage. Look into the FileLog to find volumes which really need to be salvaged!";
 
 	if ( useSyslog )
@@ -772,6 +778,7 @@ int main(int argc, char **argv)
 		to deal with screwy offsets for cmd params */
     cmd_AddParm(ts, "-syslog", CMD_FLAG, CMD_OPTIONAL, "Write salvage log to syslogs");
     cmd_AddParm(ts, "-syslogfacility", CMD_SINGLE, CMD_OPTIONAL, "Syslog facility number to use");
+    cmd_AddParm(ts, "-datelogs", CMD_FLAG, CMD_OPTIONAL, "Include timestamp in logfile filename");
 
 #ifdef FAST_RESTART
     cmd_AddParm(ts, "-DontSalvage", CMD_FLAG, CMD_OPTIONAL, "Don't salvage. This my be set in BosConfig to let the fileserver restart immediately after a crash. Bad volumes will be taken offline");
@@ -3601,6 +3608,26 @@ void CheckLogFile(void)
     }
 }
 
+#ifndef AFS_NT40_ENV
+void TimeStampLogFile(void)
+{
+  char stampSlvgLog[AFSDIR_PATH_MAX];
+  struct tm *lt;
+  time_t now;
+
+  now = time(0);
+  lt = localtime(&now);
+  sprintf(stampSlvgLog, "%s.%04d-%02d-%02d.%02d:%02d:%02d",
+          AFSDIR_SERVER_SLVGLOG_FILEPATH,
+          lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday,
+          lt->tm_hour, lt->tm_min, lt->tm_sec);
+
+  /* try to link the logfile to a timestamped filename */
+  /* if it fails, oh well, nothing we can do */
+  link(AFSDIR_SERVER_SLVGLOG_FILEPATH, stampSlvgLog);
+}
+#endif
+
 void showlog(void)
 {
     char line[256];