X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/dffeac1b8759bbedb385d0d2003a6d4c6c008cd5..b34e10452c095a4a4f9d6e9978ddc6da41e44c99:/sbr/utils.c

diff --git a/sbr/utils.c b/sbr/utils.c
index cf920a39..e5ed66aa 100644
--- a/sbr/utils.c
+++ b/sbr/utils.c
@@ -484,3 +484,25 @@ contains8bit(const char *start, const char *end)
 
     return 0;
 }
+
+
+/*
+ * See if input has any 8-bit bytes.
+ */
+int
+scan_input (int fd, int *eightbit) {
+    int state;
+    char buf[BUFSIZ];
+
+    *eightbit = 0;
+    lseek (fd, (off_t) 0, SEEK_SET);
+
+    while ((state = read (fd, buf, sizeof buf)) > 0) {
+        if (contains8bit (buf, buf + state)) {
+            *eightbit = 1;
+            return OK;
+        }
+    }
+
+    return state == NOTOK  ?  NOTOK  :  OK;
+}