contrib/completion: "local var=()" is misinterpreted as func-decl by zsh

[git.git] / sha1_file.c

diff --git a/sha1_file.c b/sha1_file.c
index f291f3f0f7d919c7d59b8b7dc3c3f2450a5a9f09..d9aa0e0a2cd45acbbe3beb6c015f5f9071a22902 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1202,6 +1202,11 @@ void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
 
                if (!fstat(fd, &st)) {
                        *size = xsize_t(st.st_size);
+                       if (!*size) {
+                               /* mmap() is forbidden on empty files */
+                               error("object file %s is empty", sha1_file_name(sha1));
+                               return NULL;
+                       }
                        map = xmmap(NULL, *size, PROT_READ, MAP_PRIVATE, fd, 0);
                }
                close(fd);
@@ -2452,15 +2457,15 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen,
        git_SHA_CTX c;
        unsigned char parano_sha1[20];
        char *filename;
-       static char tmpfile[PATH_MAX];
+       static char tmp_file[PATH_MAX];
 
        filename = sha1_file_name(sha1);
-       fd = create_tmpfile(tmpfile, sizeof(tmpfile), filename);
+       fd = create_tmpfile(tmp_file, sizeof(tmp_file), filename);
        if (fd < 0) {
                if (errno == EACCES)
                        return error("insufficient permission for adding an object to repository database %s\n", get_object_directory());
                else
-                       return error("unable to create temporary sha1 filename %s: %s\n", tmpfile, strerror(errno));
+                       return error("unable to create temporary sha1 filename %s: %s\n", tmp_file, strerror(errno));
        }
 
        /* Set it up */
@@ -2505,12 +2510,12 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen,
                struct utimbuf utb;
                utb.actime = mtime;
                utb.modtime = mtime;
-               if (utime(tmpfile, &utb) < 0)
+               if (utime(tmp_file, &utb) < 0)
                        warning("failed utime() on %s: %s",
-                               tmpfile, strerror(errno));
+                               tmp_file, strerror(errno));
        }
 
-       return move_temp_to_file(tmpfile, filename);
+       return move_temp_to_file(tmp_file, filename);
 }
 
 int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *returnsha1)