ctype: support iscntrl, ispunct, isxdigit and isprint

diff --git a/read-cache.c b/read-cache.c
index 7d4bf68e33d35ebeb5e9f985ac5c9dc2962fc8ba..d8543e4d42f0cf7f8850751806cc40bc05578117 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -1409,11 +1409,9 @@ int read_index_from(struct index_state *istate, const char *path)
        size_t mmap_size;
        struct strbuf previous_name_buf = STRBUF_INIT, *previous_name;
 
-       errno = EBUSY;
        if (istate->initialized)
                return istate->cache_nr;
 
-       errno = ENOENT;
        istate->timestamp.sec = 0;
        istate->timestamp.nsec = 0;
        fd = open(path, O_RDONLY);
@@ -1426,15 +1424,14 @@ int read_index_from(struct index_state *istate, const char *path)
        if (fstat(fd, &st))
                die_errno("cannot stat the open index");
 
-       errno = EINVAL;
        mmap_size = xsize_t(st.st_size);
        if (mmap_size < sizeof(struct cache_header) + 20)
                die("index file smaller than expected");
 
        mmap = xmmap(NULL, mmap_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
-       close(fd);
        if (mmap == MAP_FAILED)
                die_errno("unable to map index file");
+       close(fd);
 
        hdr = mmap;
        if (verify_hdr(hdr, mmap_size) < 0)
@@ -1490,7 +1487,6 @@ int read_index_from(struct index_state *istate, const char *path)
 
 unmap:
        munmap(mmap, mmap_size);
-       errno = EINVAL;
        die("index file corrupt");
 }