file.c: move chown, fchown, and fchownat parsers to a separate file

* chown.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* file.c (sys_chown, sys_fchownat, sys_fchown): Move to chown.c.
diff --git a/Makefile.am b/Makefile.am
index 664475e..e4b7852 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -23,6 +23,7 @@
 	cacheflush.c	\
 	capability.c	\
 	chmod.c		\
+	chown.c		\
 	count.c		\
 	desc.c		\
 	dirent.c	\
diff --git a/chown.c b/chown.c
new file mode 100644
index 0000000..6914a48
--- /dev/null
+++ b/chown.c
@@ -0,0 +1,37 @@
+#include "defs.h"
+
+int
+sys_chown(struct tcb *tcp)
+{
+	if (entering(tcp)) {
+		printpath(tcp, tcp->u_arg[0]);
+		printuid(", ", tcp->u_arg[1]);
+		printuid(", ", tcp->u_arg[2]);
+	}
+	return 0;
+}
+
+int
+sys_fchownat(struct tcb *tcp)
+{
+	if (entering(tcp)) {
+		print_dirfd(tcp, tcp->u_arg[0]);
+		printpath(tcp, tcp->u_arg[1]);
+		printuid(", ", tcp->u_arg[2]);
+		printuid(", ", tcp->u_arg[3]);
+		tprints(", ");
+		printflags(at_flags, tcp->u_arg[4], "AT_???");
+	}
+	return 0;
+}
+
+int
+sys_fchown(struct tcb *tcp)
+{
+	if (entering(tcp)) {
+		printfd(tcp, tcp->u_arg[0]);
+		printuid(", ", tcp->u_arg[1]);
+		printuid(", ", tcp->u_arg[2]);
+	}
+	return 0;
+}
diff --git a/file.c b/file.c
index dabd729..e66fdfc 100644
--- a/file.c
+++ b/file.c
@@ -1388,39 +1388,3 @@
 	}
 	return 0;
 }
-
-int
-sys_chown(struct tcb *tcp)
-{
-	if (entering(tcp)) {
-		printpath(tcp, tcp->u_arg[0]);
-		printuid(", ", tcp->u_arg[1]);
-		printuid(", ", tcp->u_arg[2]);
-	}
-	return 0;
-}
-
-int
-sys_fchownat(struct tcb *tcp)
-{
-	if (entering(tcp)) {
-		print_dirfd(tcp, tcp->u_arg[0]);
-		printpath(tcp, tcp->u_arg[1]);
-		printuid(", ", tcp->u_arg[2]);
-		printuid(", ", tcp->u_arg[3]);
-		tprints(", ");
-		printflags(at_flags, tcp->u_arg[4], "AT_???");
-	}
-	return 0;
-}
-
-int
-sys_fchown(struct tcb *tcp)
-{
-	if (entering(tcp)) {
-		printfd(tcp, tcp->u_arg[0]);
-		printuid(", ", tcp->u_arg[1]);
-		printuid(", ", tcp->u_arg[2]);
-	}
-	return 0;
-}