X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=tfc_misc.c;h=01998f2f13a877e451fd007cfac347282a2c896d;hb=c0d678824537239f5e17822cd8473ac32f1ed251;hp=44e1117be6342ec710d8e6848824cd55b9d6f895;hpb=cdd9119e29f2f865403303adb8b6004b863db968;p=tfcrypt.git

diff --git a/tfc_misc.c b/tfc_misc.c
index 44e1117..01998f2 100644
--- a/tfc_misc.c
+++ b/tfc_misc.c
@@ -63,6 +63,26 @@ tfc_yesno str_empty(const char *str)
 	return NO;
 }
 
+int xxopen(tfc_yesno noerr, const char *pathname, int flags)
+{
+	int r;
+
+	if ((flags & O_WRONLY || flags & O_RDWR)) {
+		if (read_only == YES) flags = O_RDONLY;
+		else flags |= write_flags;
+	}
+
+	flags |= O_LARGEFILE;
+	r = open(pathname, flags, 0666);
+	if (noerr == NO && r == -1) xerror(NO, NO, YES, "%s", pathname);
+	return r;
+}
+
+int xopen(const char *pathname, int flags)
+{
+	return xxopen(NO, pathname, flags);
+}
+
 void xclose(int fd)
 {
 	if (fd < 3) return;
@@ -77,12 +97,21 @@ const char *tfc_modename(int mode)
 		case TFC_MODE_XTS: return "XTS";
 		case TFC_MODE_ECB: return "ECB";
 		case TFC_MODE_CBC: return "CBC";
-		case TFC_MODE_OCB: return "OCB";
 	}
 
 	return NULL;
 }
 
+tfc_yesno tfc_is_freestream(int mode)
+{
+	switch (mode) {
+		case TFC_MODE_PLAIN:
+		case TFC_MODE_STREAM: return YES;
+	}
+
+	return NO;
+}
+
 void tfc_getcurtime(tfc_useconds *tx)
 {
 	struct timespec t;
@@ -164,7 +193,7 @@ tfc_fsize tfc_fnamesize(char *fname, tfc_yesno noexit)
 		memset(s, 0, 2);
 	}
 
-	fnmfd = open(fname, O_RDONLY);
+	fnmfd = xxopen(YES, fname, O_RDONLY);
 	if (s) memcpy(s, T, 2);
 	if (fnmfd == -1) {
 		xerror(noexit, NO, YES, "%s", fname);