X-Git-Url: https://jfr.im/git/irc/rqf/shadowircd.git/blobdiff_plain/d5a432fa0092f39dbb517b5665f35dc87e5a88f7..a917e9baf322547871ac5e102d97005d95ec8eb5:/src/logger.c

diff --git a/src/logger.c b/src/logger.c
index 3fea75b..53cd72b 100644
--- a/src/logger.c
+++ b/src/logger.c
@@ -38,7 +38,6 @@
 #include "ircd_defs.h"
 #include "logger.h"
 #include "s_conf.h"
-#include "sprintf_irc.h"
 #include "send.h"
 #include "client.h"
 #include "s_serv.h"
@@ -74,11 +73,56 @@ static struct log_struct log_table[LAST_LOGFILE] =
 	{ &ConfigFileEntry.fname_ioerrorlog,	&log_ioerror	}
 };
 
+static void
+verify_logfile_access(const char *filename)
+{
+	char *dirname, *d;
+	char buf[512];
+	d = rb_dirname(filename);
+	dirname = LOCAL_COPY(d);
+	rb_free(d);
+	
+	if(access(dirname, F_OK) == -1)
+	{
+		rb_snprintf(buf, sizeof(buf), "WARNING: Unable to access logfile %s - parent directory %s does not exist", filename, dirname);
+		if(testing_conf || server_state_foreground)
+			fprintf(stderr, "%s\n", buf);
+		sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s", buf);
+		return;
+	}
+
+	if(access(filename, F_OK) == -1)
+	{
+		if(access(dirname, W_OK) == -1)
+		{
+			rb_snprintf(buf, sizeof(buf), "WARNING: Unable to access logfile %s - access to parent directory %s failed: %s", 
+				    filename, dirname, strerror(errno));
+			if(testing_conf || server_state_foreground)
+				fprintf(stderr, "%s\n", buf);
+			sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s", buf);
+		}
+		return;
+	}
+	
+	if(access(filename, W_OK) == -1)
+	{
+		rb_snprintf(buf, sizeof(buf), "WARNING: Access denied for logfile %s: %s", filename, strerror(errno));
+		if(testing_conf || server_state_foreground)
+			fprintf(stderr, "%s\n", buf);	
+		sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s", buf);
+		return;
+	}
+	return;
+}
+
 void
 init_main_logfile(void)
 {
+	verify_logfile_access(logFileName);
 	if(log_main == NULL)
+	{
 		log_main = fopen(logFileName, "a");
+	}
 }
 
 void
@@ -86,26 +130,40 @@ open_logfiles(void)
 {
 	int i;
 
-	if(log_main != NULL)
-		fclose(log_main);
+	close_logfiles();
 
 	log_main = fopen(logFileName, "a");
 
 	/* log_main is handled above, so just do the rest */
 	for(i = 1; i < LAST_LOGFILE; i++)
 	{
-		/* close open logfiles */
+		/* reopen those with paths */
+		if(!EmptyString(*log_table[i].name))
+		{
+			verify_logfile_access(*log_table[i].name);
+			*log_table[i].logfile = fopen(*log_table[i].name, "a");
+		}
+	}
+}			
+
+void
+close_logfiles(void)
+{
+	int i;
+
+	if(log_main != NULL)
+		fclose(log_main);
+
+	/* log_main is handled above, so just do the rest */
+	for(i = 1; i < LAST_LOGFILE; i++)
+	{
 		if(*log_table[i].logfile != NULL)
 		{
 			fclose(*log_table[i].logfile);
 			*log_table[i].logfile = NULL;
 		}
-
-		/* reopen those with paths */
-		if(!EmptyString(*log_table[i].name))
-			*log_table[i].logfile = fopen(*log_table[i].name, "a");
 	}
-}			
+}
 
 void
 ilog(ilogfile dest, const char *format, ...)
@@ -128,6 +186,7 @@ ilog(ilogfile dest, const char *format, ...)
 	{
 		fclose(logfile);
 		*log_table[dest].logfile = NULL;
+		return;
 	}
 
 	fflush(logfile);