This is rotatelogs.c in view mode; [Download] [Up]
/*
Simple program to rotate Apache logs without having to kill the server.
Contributed by Ben Laurie <ben@algroup.co.uk>
12 Mar 1996
*/
#define BUFSIZE 65536
#define MAX_PATH 1024
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
void main(int argc,char **argv)
{
char buf[BUFSIZE],buf2[MAX_PATH];
time_t tLogEnd;
time_t tRotation;
int nLogFD=-1;
int nRead;
char *szLogRoot;
if(argc != 3)
{
fprintf(stderr,"%s <logfile> <rotation time in seconds>\n\n",argv[0]);
#ifdef __EMX__
fprintf(stderr,"Add this:\n\nTransferLog \"|%s.exe /some/where 86400\"\n\n",argv[0]);
#else
fprintf(stderr,"Add this:\n\nTransferLog \"|%s /some/where 86400\"\n\n",argv[0]);
#endif
fprintf(stderr,"to httpd.conf. The generated name will be /some/where.nnnn where nnnn is the\n");
fprintf(stderr,"system time at which the log nominally starts (N.B. this time will always be a\n");
fprintf(stderr,"multiple of the rotation time, so you can synchronize cron scripts with it).\n");
fprintf(stderr,"At the end of each rotation time a new log is started.\n");
exit(1);
}
szLogRoot=argv[1];
tRotation=atoi(argv[2]);
if(tRotation <= 0)
{
fprintf(stderr,"Rotation time must be > 0\n");
exit(6);
}
for( ; ; )
{
nRead=read(0,buf,sizeof buf);
if(nRead == 0)
exit(3);
if(nRead < 0)
if(errno != EINTR)
exit(4);
if(nLogFD >= 0 && (time(NULL) >= tLogEnd || nRead < 0))
{
close(nLogFD);
nLogFD=-1;
}
if(nLogFD < 0)
{
time_t tLogStart=(time(NULL)/tRotation)*tRotation;
sprintf(buf2,"%s.%010d",szLogRoot,(int)tLogStart);
tLogEnd=tLogStart+tRotation;
nLogFD=open(buf2,O_WRONLY|O_CREAT|O_APPEND,0666);
if(nLogFD < 0)
{
perror(buf2);
exit(2);
}
}
if(write(nLogFD,buf,nRead) != nRead)
{
perror(buf2);
exit(5);
}
}
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.