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OS/2 Shareware BBS: 35 Internet
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rsync221.zip
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log.c
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C/C++ Source or Header
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1999-03-04
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7KB
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327 lines
/*
Copyright (C) Andrew Tridgell 1998
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
logging and utility functions
tridge, May 1998
*/
#include "rsync.h"
static FILE *logfile;
static void logit(int priority, char *buf)
{
if (logfile) {
fprintf(logfile,"%s [%d] %s",
timestring(time(NULL)), (int)getpid(), buf);
fflush(logfile);
} else {
syslog(priority, "%s", buf);
}
}
void log_open(void)
{
static int initialised;
int options = LOG_PID;
time_t t;
char *logf;
if (initialised) return;
initialised = 1;
/* this looks pointless, but it is needed in order for the
C library on some systems to fetch the timezone info
before the chroot */
t = time(NULL);
localtime(&t);
/* optionally use a log file instead of syslog */
logf = lp_log_file();
if (logf && *logf) {
extern int orig_umask;
int old_umask = umask(022 | orig_umask);
logfile = fopen(logf, "a");
umask(old_umask);
return;
}
#ifdef LOG_NDELAY
options |= LOG_NDELAY;
#endif
#ifdef LOG_DAEMON
openlog("rsyncd", options, lp_syslog_facility());
#else
openlog("rsyncd", options);
#endif
#ifndef LOG_NDELAY
logit(LOG_INFO,"rsyncd started\n");
#endif
}
/* this is the rsync debugging function. Call it with FINFO, FERROR or FLOG */
void rprintf(int fd, const char *format, ...)
{
va_list ap;
char buf[1024];
int len;
FILE *f=NULL;
extern int am_daemon;
/* recursion can happen with certain fatal conditions */
va_start(ap, format);
len = vslprintf(buf, sizeof(buf), format, ap);
va_end(ap);
if (len < 0) exit_cleanup(RERR_MESSAGEIO);
if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
buf[len] = 0;
if (fd == FLOG) {
if (am_daemon) logit(LOG_INFO, buf);
return;
}
if (am_daemon) {
static int depth;
int priority = LOG_INFO;
if (fd == FERROR) priority = LOG_WARNING;
if (depth) return;
depth++;
log_open();
if (!io_multiplex_write(fd, buf, strlen(buf))) {
logit(priority, buf);
}
depth--;
return;
}
if (fd == FERROR) {
f = stderr;
}
if (fd == FINFO) {
extern int am_server;
if (am_server)
f = stderr;
else
f = stdout;
}
if (!f) exit_cleanup(RERR_MESSAGEIO);
if (fwrite(buf, len, 1, f) != 1) exit_cleanup(RERR_MESSAGEIO);
if (buf[len-1] == '\r' || buf[len-1] == '\n') fflush(f);
}
void rflush(int fd)
{
FILE *f = NULL;
extern int am_daemon;
if (am_daemon) {
return;
}
if (fd == FLOG) {
return;
}
if (fd == FERROR) {
f = stderr;
}
if (fd == FINFO) {
extern int am_server;
if (am_server)
f = stderr;
else
f = stdout;
}
if (!f) exit_cleanup(RERR_MESSAGEIO);
fflush(f);
}
/* a generic logging routine for send/recv, with parameter
substitiution */
static void log_formatted(int fd,
char *format, char *op, struct file_struct *file,
struct stats *initial_stats)
{
extern int module_id;
extern char *auth_user;
char buf[1024];
char buf2[1024];
char *p, *s, *n;
int l;
extern struct stats stats;
extern int am_sender;
extern int am_daemon;
int64 b;
strlcpy(buf, format, sizeof(buf));
for (s=&buf[0];
s && (p=strchr(s,'%')); ) {
n = NULL;
s = p + 1;
switch (p[1]) {
case 'h': if (am_daemon) n = client_name(0); break;
case 'a': if (am_daemon) n = client_addr(0); break;
case 'l':
slprintf(buf2,sizeof(buf2),"%.0f",
(double)file->length);
n = buf2;
break;
case 'p':
slprintf(buf2,sizeof(buf2),"%d",
(int)getpid());
n = buf2;
break;
case 'o': n = op; break;
case 'f':
slprintf(buf2, sizeof(buf2), "%s/%s",
file->basedir?file->basedir:"",
f_name(file));
clean_fname(buf2);
n = buf2;
if (*n == '/') n++;
break;
case 'm': n = lp_name(module_id); break;
case 't': n = timestring(time(NULL)); break;
case 'P': n = lp_path(module_id); break;
case 'u': n = auth_user; break;
case 'b':
if (am_sender) {
b = stats.total_written -
initial_stats->total_written;
} else {
b = stats.total_read -
initial_stats->total_read;
}
slprintf(buf2,sizeof(buf2),"%.0f", (double)b);
n = buf2;
break;
case 'c':
if (!am_sender) {
b = stats.total_written -
initial_stats->total_written;
} else {
b = stats.total_read -
initial_stats->total_read;
}
slprintf(buf2,sizeof(buf2),"%.0f", (double)b);
n = buf2;
break;
}
if (!n) continue;
l = strlen(n);
if ((l-1) + ((int)(s - &buf[0])) > sizeof(buf)) {
rprintf(FERROR,"buffer overflow expanding %%%c - exiting\n",
p[0]);
exit_cleanup(RERR_MESSAGEIO);
}
if (l != 2) {
memmove(s+(l-1), s+1, strlen(s+1)+1);
}
memcpy(p, n, l);
s = p+l;
}
rprintf(fd,"%s\n", buf);
}
/* log the outgoing transfer of a file */
void log_send(struct file_struct *file, struct stats *initial_stats)
{
extern int module_id;
extern int am_server;
extern char *log_format;
if (lp_transfer_logging(module_id)) {
log_formatted(FLOG, lp_log_format(module_id), "send", file, initial_stats);
} else if (log_format && !am_server) {
log_formatted(FINFO, log_format, "send", file, initial_stats);
}
}
/* log the incoming transfer of a file */
void log_recv(struct file_struct *file, struct stats *initial_stats)
{
extern int module_id;
extern int am_server;
extern char *log_format;
if (lp_transfer_logging(module_id)) {
log_formatted(FLOG, lp_log_format(module_id), "send", file, initial_stats);
} else if (log_format && !am_server) {
log_formatted(FINFO, log_format, "send", file, initial_stats);
}
}
/* called when the transfer is interrupted for some reason */
void log_exit(int code, const char *file, int line)
{
if (code == 0) {
extern struct stats stats;
rprintf(FLOG,"wrote %.0f bytes read %.0f bytes total size %.0f\n",
(double)stats.total_written,
(double)stats.total_read,
(double)stats.total_size);
} else {
rprintf(FLOG,"transfer interrupted (code %d) at %s(%d)\n",
code, file, line);
}
}
/* log the incoming transfer of a file for interactive use, this
will be called at the end where the client was run
it i called when a file starts to be transferred
*/
void log_transfer(struct file_struct *file, const char *fname)
{
extern int verbose;
if (!verbose) return;
rprintf(FINFO,"%s\n", fname);
}