file.c: export sprintmode and move it to a separate file
* printmode.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (sprintmode): New prototype.
* file.c (sprintmode): Make global and move to printmode.c.
diff --git a/printmode.c b/printmode.c
new file mode 100644
index 0000000..4df1b9f
--- /dev/null
+++ b/printmode.c
@@ -0,0 +1,30 @@
+#include "defs.h"
+
+#include <fcntl.h>
+
+#include "xlat/modetypes.h"
+
+const char *
+sprintmode(int mode)
+{
+ static char buf[sizeof("S_IFSOCK|S_ISUID|S_ISGID|S_ISVTX|%o")
+ + sizeof(int)*3
+ + /*paranoia:*/ 8];
+ const char *s;
+
+ if ((mode & S_IFMT) == 0)
+ s = "";
+ else if ((s = xlookup(modetypes, mode & S_IFMT)) == NULL) {
+ sprintf(buf, "%#o", mode);
+ return buf;
+ }
+ s = buf + sprintf(buf, "%s%s%s%s", s,
+ (mode & S_ISUID) ? "|S_ISUID" : "",
+ (mode & S_ISGID) ? "|S_ISGID" : "",
+ (mode & S_ISVTX) ? "|S_ISVTX" : "");
+ mode &= ~(S_IFMT|S_ISUID|S_ISGID|S_ISVTX);
+ if (mode)
+ sprintf((char*)s, "|%#o", mode);
+ s = (*buf == '|') ? buf + 1 : buf;
+ return *s ? s : "0";
+}