logd: allow setting the buffer size from the command line

Signed-off-by: John Crispin <blogic@openwrt.org>

diff --git a/log/logd.c b/log/logd.c
index 978d7d198590afcff892249343c62c9c70d4995e..cbaf2193eb5bdcb80725a0f74f407a00782ae429 100644 (file)
--- a/log/logd.c
+++ b/log/logd.c
@@ -13,6 +13,7 @@
 
 #include <stdio.h>
 #include <syslog.h>
+#include <unistd.h>
 
 #include <linux/types.h>
 
@@ -169,12 +170,24 @@ ubus_connect_cb(struct uloop_timeout *timeout)
 int
 main(int argc, char **argv)
 {
+       int ch, log_size = 0;
+
        signal(SIGPIPE, SIG_IGN);
 
+       while ((ch = getopt(argc, argv, "S:")) != -1) {
+               switch (ch) {
+               case 'S':
+                       log_size = atoi(optarg);
+                       if (log_size < 1)
+                               log_size = 1;
+                       log_size *= 1024;
+                       break;
+               }
+       }
        uloop_init();
        ubus_timer.cb = ubus_connect_cb;
        uloop_timeout_set(&ubus_timer, 1000);
-       log_init();
+       log_init(log_size);
        uloop_run();
        if (_ctx)
                ubus_free(_ctx);

diff --git a/log/syslog.c b/log/syslog.c
index fcc4a74f906a026796a87ed6254c7d1fb14a62bd..4cabb434a0ea050e7d79452566807a66d4c51eae 100644 (file)
--- a/log/syslog.c
+++ b/log/syslog.c
@@ -274,8 +274,11 @@ log_buffer_init(int size)
 }
 
 void
-log_init(void)
+log_init(int _log_size)
 {
+       if (_log_size > 0)
+               log_size = _log_size;
+
        regcomp(&pat_prio, "^<([0-9]*)>(.*)", REG_EXTENDED);
        regcomp(&pat_tstamp, "^\[[ 0]*([0-9]*).([0-9]*)] (.*)", REG_EXTENDED);
 

diff --git a/log/syslog.h b/log/syslog.h
index dc712ffd75c65c7ac71e7e9111e8b35bb5cea408..b682cedf504f08958a4cf83858c942a2fb6257f7 100644 (file)
--- a/log/syslog.h
+++ b/log/syslog.h
@@ -30,7 +30,7 @@ struct log_head {
        char data[];
 };
 
-void log_init(void);
+void log_init(int log_size);
 void log_shutdown(void);
 
 typedef void (*log_list_cb)(struct log_head *h);