X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/4a81463880f9ba9d25b2e06ddc67628aa4768787..a039749b4c21e3439dc06fcdd5355828f1f95463:/log.c

diff --git a/log.c b/log.c
index 61a8bd05..8928a386 100644
--- a/log.c
+++ b/log.c
@@ -1,5 +1,6 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2000 by Andrew Tridgell
    
    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
@@ -23,12 +24,15 @@
   */
 #include "rsync.h"
 
+static char *logfname;
 static FILE *logfile;
 static int log_error_fd = -1;
 
 static void logit(int priority, char *buf)
 {
-	if (logfile) {
+	if (logfname) {
+		if (!logfile)
+			log_open();
 		fprintf(logfile,"%s [%d] %s", 
 			timestring(time(NULL)), (int)getpid(), buf);
 		fflush(logfile);
@@ -37,12 +41,11 @@ static void logit(int priority, char *buf)
 	}
 }
 
-void log_open(void)
+void log_init(void)
 {
 	static int initialised;
 	int options = LOG_PID;
 	time_t t;
-	char *logf;
 
 	if (initialised) return;
 	initialised = 1;
@@ -54,13 +57,13 @@ void log_open(void)
 	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;
+	logfname = lp_log_file();
+	if (logfname) {
+		if (*logfname) {
+			log_open();
+			return;
+		}
+		logfname = NULL;
 	}
 
 #ifdef LOG_NDELAY
@@ -78,6 +81,24 @@ void log_open(void)
 #endif
 }
 
+void log_open()
+{
+	if (logfname && !logfile) {
+		extern int orig_umask;
+		int old_umask = umask(022 | orig_umask);
+		logfile = fopen(logfname, "a");
+		umask(old_umask);
+	}
+}
+
+void log_close()
+{
+	if (logfile) {
+		fclose(logfile);
+		logfile = NULL;
+	}
+}
+
 /* setup the error file descriptor - used when we are a server
    that is receiving files */
 void set_error_fd(int fd)
@@ -125,7 +146,7 @@ void rwrite(enum logcode code, char *buf, int len)
 
 		depth++;
 
-		log_open();
+		log_init();
 		logit(priority, buf);
 
 		depth--;
@@ -151,8 +172,9 @@ void rwrite(enum logcode code, char *buf, int len)
 }
 		
 
-/* this is the rsync debugging function. Call it with FINFO, FERROR or FLOG */
- void rprintf(enum logcode code, const char *format, ...)
+/* This is the rsync debugging function. Call it with FINFO, FERROR or
+ * FLOG. */
+void rprintf(enum logcode code, const char *format, ...)
 {
 	va_list ap;  
 	char buf[1024];
@@ -167,6 +189,45 @@ void rwrite(enum logcode code, char *buf, int len)
 	rwrite(code, buf, len);
 }
 
+
+/* This is like rprintf, but it also tries to print some
+ * representation of the error code.  Normally errcode = errno.
+ *
+ * Unlike rprintf, this always adds a newline and there should not be
+ * one in the format string.
+ *
+ * Note that since strerror might involve dynamically loading a
+ * message catalog we need to call it once before chroot-ing. */
+void rsyserr(enum logcode code, int errcode, const char *format, ...)
+{
+	va_list ap;  
+	char buf[1024];
+	int len, sys_len;
+        char *sysmsg;
+
+	va_start(ap, format);
+	len = vslprintf(buf, sizeof(buf), format, ap);
+	va_end(ap);
+
+	if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
+
+        sysmsg = strerror(errcode);
+        sys_len = strlen(sysmsg);
+        if (len + 3 + sys_len > sizeof(buf) - 1)
+                exit_cleanup(RERR_MESSAGEIO);
+
+        strcpy(buf + len, ": ");
+        len += 2;
+        strcpy(buf + len, sysmsg);
+        len += sys_len;
+        strcpy(buf + len, "\n");
+        len++;
+
+	rwrite(code, buf, len);
+}
+
+
+
 void rflush(enum logcode code)
 {
 	FILE *f = NULL;