-E sync: reform logic. Prequery file position, jump over error hole.

[tfcrypt.git] / tfc_misc.c

diff --git a/tfc_misc.c b/tfc_misc.c
index d1bb78368d2126bfa1a1b411178b1b79561a6d9f..e6af46ada39ca1b324649aa927c75c4c92411369 100644 (file)
--- a/tfc_misc.c
+++ b/tfc_misc.c
@@ -100,14 +100,23 @@ tfc_fsize tfc_fdsize(int fd)
 
        cur = lseek(fd, 0L, SEEK_CUR);
        l = lseek(fd, 0L, SEEK_SET);
-       if (l == -1) return -1;
+       if (l == -1) return NOFSIZE;
        l = lseek(fd, 0L, SEEK_END);
-       if (l == -1) return -1;
+       if (l == -1) return NOFSIZE;
        lseek(fd, cur, SEEK_SET);
 
        return (tfc_fsize)l;
 }
 
+tfc_fsize tfc_fdgetpos(int fd)
+{
+       off_t t;
+
+       t = lseek(fd, 0L, SEEK_CUR);
+       if (t == -1) return NOFSIZE;
+       return (tfc_fsize)t;
+}
+
 tfc_fsize tfc_fnamesize(char *fname, tfc_yesno noexit)
 {
        int fnmfd;