index: be careful when handling long names

diff --git a/diff-lib.c b/diff-lib.c
index f8e936ae1008fdb7ef8e1722afb839d84c724f6c..4a05b02cd0f53f61efa1d3acd43ca66870b0b33d 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -37,7 +37,7 @@ static int get_mode(const char *path, int *mode)
        if (!path || !strcmp(path, "/dev/null"))
                *mode = 0;
        else if (!strcmp(path, "-"))
-               *mode = ntohl(create_ce_mode(0666));
+               *mode = create_ce_mode(0666);
        else if (stat(path, &st))
                return error("Could not access '%s'", path);
        else
@@ -231,7 +231,7 @@ static int handle_diff_files_args(struct rev_info *revs,
 static int is_outside_repo(const char *path, int nongit, const char *prefix)
 {
        int i;
-       if (nongit || !strcmp(path, "-") || path[0] == '/')
+       if (nongit || !strcmp(path, "-") || is_absolute_path(path))
                return 1;
        if (prefixcmp(path, "../"))
                return 0;
@@ -384,7 +384,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                                        continue;
                        }
                        else
-                               dpath->mode = ntohl(ce_mode_from_stat(ce, st.st_mode));
+                               dpath->mode = ce_mode_from_stat(ce, st.st_mode);
 
                        while (i < entries) {
                                struct cache_entry *nce = active_cache[i];
@@ -398,10 +398,10 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                                 */
                                stage = ce_stage(nce);
                                if (2 <= stage) {
-                                       int mode = ntohl(nce->ce_mode);
+                                       int mode = nce->ce_mode;
                                        num_compare_stages++;
                                        hashcpy(dpath->parent[stage-2].sha1, nce->sha1);
-                                       dpath->parent[stage-2].mode = ntohl(ce_mode_from_stat(nce, mode));
+                                       dpath->parent[stage-2].mode = ce_mode_from_stat(nce, mode);
                                        dpath->parent[stage-2].status =
                                                DIFF_STATUS_MODIFIED;
                                }
@@ -442,15 +442,15 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                        }
                        if (silent_on_removed)
                                continue;
-                       diff_addremove(&revs->diffopt, '-', ntohl(ce->ce_mode),
+                       diff_addremove(&revs->diffopt, '-', ce->ce_mode,
                                       ce->sha1, ce->name, NULL);
                        continue;
                }
                changed = ce_match_stat(ce, &st, ce_option);
                if (!changed && !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                        continue;
-               oldmode = ntohl(ce->ce_mode);
-               newmode = ntohl(ce_mode_from_stat(ce, st.st_mode));
+               oldmode = ce->ce_mode;
+               newmode = ce_mode_from_stat(ce, st.st_mode);
                diff_change(&revs->diffopt, oldmode, newmode,
                            ce->sha1, (changed ? null_sha1 : ce->sha1),
                            ce->name, NULL);
@@ -471,7 +471,7 @@ static void diff_index_show_file(struct rev_info *revs,
                                 struct cache_entry *ce,
                                 unsigned char *sha1, unsigned int mode)
 {
-       diff_addremove(&revs->diffopt, prefix[0], ntohl(mode),
+       diff_addremove(&revs->diffopt, prefix[0], mode,
                       sha1, ce->name, NULL);
 }
 
@@ -550,14 +550,14 @@ static int show_modified(struct rev_info *revs,
                p->len = pathlen;
                memcpy(p->path, new->name, pathlen);
                p->path[pathlen] = 0;
-               p->mode = ntohl(mode);
+               p->mode = mode;
                hashclr(p->sha1);
                memset(p->parent, 0, 2 * sizeof(struct combine_diff_parent));
                p->parent[0].status = DIFF_STATUS_MODIFIED;
-               p->parent[0].mode = ntohl(new->ce_mode);
+               p->parent[0].mode = new->ce_mode;
                hashcpy(p->parent[0].sha1, new->sha1);
                p->parent[1].status = DIFF_STATUS_MODIFIED;
-               p->parent[1].mode = ntohl(old->ce_mode);
+               p->parent[1].mode = old->ce_mode;
                hashcpy(p->parent[1].sha1, old->sha1);
                show_combined_diff(p, 2, revs->dense_combined_merges, revs);
                free(p);
@@ -569,9 +569,6 @@ static int show_modified(struct rev_info *revs,
            !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                return 0;
 
-       mode = ntohl(mode);
-       oldmode = ntohl(oldmode);
-
        diff_change(&revs->diffopt, oldmode, mode,
                    old->sha1, sha1, old->name, NULL);
        return 0;
@@ -628,7 +625,7 @@ static int diff_cache(struct rev_info *revs,
                                           cached, match_missing))
                                break;
                        diff_unmerge(&revs->diffopt, ce->name,
-                                    ntohl(ce->ce_mode), ce->sha1);
+                                    ce->ce_mode, ce->sha1);
                        break;
                case 3:
                        diff_unmerge(&revs->diffopt, ce->name,
@@ -664,7 +661,7 @@ static void mark_merge_entries(void)
                struct cache_entry *ce = active_cache[i];
                if (!ce_stage(ce))
                        continue;
-               ce->ce_flags |= htons(CE_STAGEMASK);
+               ce->ce_flags |= CE_STAGEMASK;
        }
 }
 
@@ -722,8 +719,7 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt)
                        cache_tree_invalidate_path(active_cache_tree,
                                                   ce->name);
                        last = ce;
-                       ce->ce_mode = 0;
-                       ce->ce_flags &= ~htons(CE_STAGEMASK);
+                       ce->ce_flags |= CE_REMOVE;
                }
                *dst++ = ce;
        }