major stdio overhaul, using readv/writev, plus other changes

[musl] / src / stdio / __stdio_seek.c

diff --git a/src/stdio/__stdio_seek.c b/src/stdio/__stdio_seek.c
index c205ab8..35ae788 100644 (file)
--- a/src/stdio/__stdio_seek.c
+++ b/src/stdio/__stdio_seek.c
@@ -2,6 +2,7 @@
 
 static off_t retneg1(FILE *f, off_t off, int whence)
 {
+       errno = ESPIPE;
        return -1;
 }
 
@@ -15,7 +16,6 @@ off_t __stdio_seek(FILE *f, off_t off, int whence)
        ret = syscall(SYS_lseek, f->fd, off, whence);
 #endif
        /* Detect unseekable files and optimize future failures out */
-       if (ret < 0 && off == 0 && whence == SEEK_CUR)
-               f->seek = retneg1;
+       if (ret < 0 && errno == ESPIPE) f->seek = retneg1;
        return ret;
 }