--- a/syslog.conf	Sat May 13 23:27:42 2006 +0200
+++ b/syslog.conf	Sat May 13 23:30:53 2006 +0200
@@ -0,0 +1,2 @@
+from_unix=patata
+log_file=prova.log

--- a/syslog_kernel.c	Sat May 13 23:27:42 2006 +0200
+++ b/syslog_kernel.c	Sat May 13 23:30:53 2006 +0200
@@ -8,6 +8,8 @@
 #include <signal.h> // Pels senyals
 #include <assert.h> // Pels assert
 #include <stdlib.h> // Per l'abort
+#include <fcntl.h> // Per l'open
+#include <sys/stat.h> // Per l'open
 
 #include "rfc3164.h"
 #include "syslog.h"
@@ -102,7 +104,7 @@
 	char cvalue[MAX_STRING];
 
 	/* The childs should not run */
-	if (get_config(FROM_UNIX, cvalue) > 0)
+	if (get_config(FROM_UNIX, cvalue, MAX_STRING) > 0)
 	{
 		child[CHILD_UNIX].input_pipe[0] = input_pipe[0];
 		child[CHILD_UNIX].input_pipe[1] = input_pipe[1];
@@ -113,7 +115,7 @@
 			child[CHILD_UNIX].running = true;
 	}
 
-	if (get_config(FROM_NPIPE, cvalue) > 0)
+	if (get_config(FROM_NPIPE, cvalue, MAX_STRING) > 0)
 	{
 		child[CHILD_NPIPE].input_pipe[0] = input_pipe[0];
 		child[CHILD_NPIPE].input_pipe[1] = input_pipe[1];
@@ -124,7 +126,7 @@
 			child[CHILD_NPIPE].running = true;
 	}
 
-	if (get_config(FROM_UDP, cvalue) > 0)
+	if (get_config(FROM_UDP, cvalue, MAX_STRING) > 0)
 	{
 		child[CHILD_UDP].input_pipe[0] = input_pipe[0];
 		child[CHILD_UDP].input_pipe[1] = input_pipe[1];
@@ -140,7 +142,20 @@
 {
 	int input_pipe[2];
 	char missatge[MESSAGE_LENGTH+1];
-	int res;
+	int res_r, res_w; /* resultats de la crida read i write */
+	int errno_r;  /* errno de la crida read */
+	int output;
+	char value[MAX_STRING];
+
+	assert (get_config(LOG_FILE, value, MAX_STRING) > 0);
+	/* We must specify the mode, because we add O_CREAD */
+	output = open(value, O_WRONLY | O_APPEND | O_CREAT, 0600);
+	if (output == -1)
+	{
+		fprintf(stderr, "Error opening the log file: %s\n",
+				strerror(errno));
+		return;
+	}
 
 	/* Pipe for the childs */
 	pipe(input_pipe);
@@ -152,28 +167,48 @@
 
 	while(true)
 	{
-		res = read(input_pipe[0], missatge, MESSAGE_LENGTH);
+		res_r = read(input_pipe[0], missatge, MESSAGE_LENGTH);
+		errno_r = errno;
 
-		if (res > 0)
+		if (res_r > 0)
 		{
-			/* Add a ZERO */
-			missatge[res] = '\0';
-			/* The \n is included in the message */
-			printf("Received: %s",missatge);
+			/* Add a ZERO for displaying */
+			missatge[res_r] = '\0';
+			fprintf(stderr, "Received: %s\n",missatge);
+			do
+			{
+				res_w = write(output, missatge, res_r);
+				if (res_w == 0)
+					break;
+			}
+			/* Protect against EINTR */
+			while(res_w == -1 && errno == EINTR);
+
+			if (res_w == -1 || res_w == 0)
+				break;
 		}
-		else if (res == -1 && errno == EINTR)
+		else if (res_r == -1 && errno == EINTR)
+			/* The call was interrupted by a signal */
 			continue;
-		else
+		else /* End of read: res_r -1 or 0 */
 			break;
 	}
 
-	if (res == -1)
+	if (res_r == -1)
 	{
-		printf("Error reading from the main pipe: %s\n", 
+		fprintf(stderr, "Error reading from the main pipe: %s\n", 
+			strerror(errno_r));
+	}
+	close(input_pipe[0]);
+
+	if (res_w == -1)
+	{
+		fprintf(stderr, "Error writing to the log file: %s\n", 
 			strerror(errno));
-	}
+	} else if (res_w == 0)
+		fprintf(stderr,"Cannot write anymore to the log file.");
 
-
+	close(output);
 }
 
 static void install_signal_handlers()