ui-shared: ban strcat()

Git upstream bans strcat() with commit:

  banned.h: mark strcat() as banned
  1b11b64b815db62f93a04242e4aed5687a448748

To avoid compiler warnings from gcc 8.1.x we get the hard way.

Signed-off-by: Christian Hesse <mail@eworm.de>

1 files changed, 8 insertions, 4 deletions

diff --git a/ui-shared.c b/ui-shared.c
index 739505a..b53c56d 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1159,7 +1159,7 @@ void cgit_print_snapshot_links(const struct cgit_repo *repo, const char *ref,
 
 void cgit_set_title_from_path(const char *path)
 {
-        size_t path_len, path_index, path_last_end;
+        size_t path_len, path_index, path_last_end, line_len;
         char *new_title;
 
         if (!path)
@@ -1176,14 +1176,18 @@ void cgit_set_title_from_path(const char *path)
                                 continue;
                         }
                         strncat(new_title, &path[path_index + 1], path_last_end - path_index - 1);
-                        strcat(new_title, "\\");
+                        line_len = strlen(new_title);
+                        new_title[line_len++] = '\\';
+                        new_title[line_len] = '\0';
                         path_last_end = path_index;
                 }
         }
         if (path_last_end)
                 strncat(new_title, path, path_last_end);
 
-        strcat(new_title, " - ");
-        strcat(new_title, ctx.page.title);
+        line_len = strlen(new_title);
+        memcpy(&new_title[line_len], " - ", 3);
+        new_title[line_len + 3] = '\0';
+        strncat(new_title, ctx.page.title, sizeof(new_title) - strlen(new_title) - 1);
         ctx.page.title = new_title;
 }