xio: refactor fopencookie related functions

Again, we move them out of xio to shrink it down.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

6 files changed, 59 insertions, 46 deletions

diff --git a/cookie.c b/cookie.c
new file mode 100644
index 0000000..9ee1ac6
--- /dev/null
+++ b/cookie.c
@@ -0,0 +1,51 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <syslog.h>
+
+#include "cookie.h"
+
+static char const *priov[] = {
+	[LOG_EMERG]	=	"EMERG:",
+	[LOG_ALERT]	=	"ALERT:",
+	[LOG_CRIT]	=	"CRIT:",
+	[LOG_ERR]	=	"ERR:",
+	[LOG_WARNING]	=	"WARNING:",
+	[LOG_NOTICE]	=	"NOTICE:",
+	[LOG_INFO]	=	"INFO:",
+	[LOG_DEBUG]	=	"DEBUG:",
+};
+
+static ssize_t cookie_writer(void *cookie, char const *data, size_t leng)
+{
+	int prio = LOG_DEBUG, len;
+
+	do {
+		len = strlen(priov[prio]);
+	} while (memcmp(data, priov[prio], len) && --prio >= 0);
+
+	if (prio < 0) {
+		prio = LOG_INFO;
+	} else {
+		data += len;
+		leng -= len;
+	}
+
+	while (*data == ' ') {
+		 ++data;
+		--leng;
+	}
+
+	syslog(prio, "%.*s", (int) leng, data);
+
+	return leng;
+}
+
+static cookie_io_functions_t cookie_log = {
+	.write		=	cookie_writer,
+};
+
+void to_std_log(FILE **fp)
+{
+	setvbuf(*fp = fopencookie(NULL, "w", cookie_log), NULL, _IOLBF, 0);
+}
diff --git a/cookie.h b/cookie.h
new file mode 100644
index 0000000..14f1801
--- /dev/null
+++ b/cookie.h
@@ -0,0 +1,6 @@
+#ifndef COOKIE_H
+#define COOKIE_H
+
+extern void to_std_log(FILE **fp);
+
+#endif /* COOKIE_H */
diff --git a/curvetun.c b/curvetun.c
index b2cc9b5..d85e6ad 100644
--- a/curvetun.c
+++ b/curvetun.c
@@ -28,6 +28,7 @@
 #include "xutils.h"
 #include "die.h"
 #include "str.h"
+#include "cookie.h"
 #include "xmalloc.h"
 #include "curvetun.h"
 #include "curve.h"
diff --git a/curvetun/Makefile b/curvetun/Makefile
index ce91dc2..62f7a51 100644
--- a/curvetun/Makefile
+++ b/curvetun/Makefile
@@ -12,6 +12,7 @@ curvetun-objs =	xmalloc.o \
 		hash.o \
 		rnd.o \
 		curve.o \
+		cookie.o \
 		cpusched.o \
 		ct_usermgmt.o \
 		ct_servmgmt.o \
diff --git a/xio.c b/xio.c
index da17206..efc4ed4 100644
--- a/xio.c
+++ b/xio.c
@@ -157,48 +157,3 @@ ssize_t write_exact(int fd, void *buf, size_t len, int mayexit)
 
 	return num;
 }
-
-static char const *priov[] = {
-	[LOG_EMERG]	=	"EMERG:",
-	[LOG_ALERT]	=	"ALERT:",
-	[LOG_CRIT]	=	"CRIT:",
-	[LOG_ERR]	=	"ERR:",
-	[LOG_WARNING]	=	"WARNING:",
-	[LOG_NOTICE]	=	"NOTICE:",
-	[LOG_INFO]	=	"INFO:",
-	[LOG_DEBUG]	=	"DEBUG:",
-};
-
-static ssize_t cookie_writer(void *cookie, char const *data, size_t leng)
-{
-	int prio = LOG_DEBUG, len;
-
-	do {
-		len = strlen(priov[prio]);
-	} while (memcmp(data, priov[prio], len) && --prio >= 0);
-
-	if (prio < 0) {
-		prio = LOG_INFO;
-	} else {
-		data += len;
-		leng -= len;
-	}
-
-	while (*data == ' ') {
-		 ++data;
-		--leng;
-	}
-
-	syslog(prio, "%.*s", (int) leng, data);
-
-	return leng;
-}
-
-static cookie_io_functions_t cookie_log = {
-	.write		=	cookie_writer,
-};
-
-void to_std_log(FILE **fp)
-{
-	setvbuf(*fp = fopencookie(NULL, "w", cookie_log), NULL, _IOLBF, 0);
-}
diff --git a/xio.h b/xio.h
index b02e7a9..8a8f58a 100644
--- a/xio.h
+++ b/xio.h
@@ -16,6 +16,5 @@ extern ssize_t read_or_die(int fd, void *buf, size_t count);
 extern ssize_t write_or_die(int fd, const void *buf, size_t count);
 extern ssize_t read_exact(int fd, void *buf, size_t len, int mayexit);
 extern ssize_t write_exact(int fd, void *buf, size_t len, int mayexit);
-extern void to_std_log(FILE **fp);
 
 #endif /* XIO_H */