12 files changed, 305 insertions, 243 deletions

diff --git a/cache.c b/cache.c
index 3127fc2..c1d777b 100644
--- a/cache.c
+++ b/cache.c
@@ -312,9 +312,9 @@ int cache_process(int size, const char *path, const char *key, int ttl,
                   cache_fill_fn fn, void *cbdata)
 {
         unsigned long hash;
-        int len, i;
-        char filename[1024];
-        char lockname[1024 + 5];  /* 5 = ".lock" */
+        int i;
+        struct strbuf filename = STRBUF_INIT;
+        struct strbuf lockname = STRBUF_INIT;
         struct cache_slot slot;
 
         /* If the cache is disabled, just generate the content */
@@ -329,32 +329,22 @@ int cache_process(int size, const char *path, const char *key, int ttl,
                 fn(cbdata);
                 return 0;
         }
-        len = strlen(path);
-        if (len > sizeof(filename) - 10) { /* 10 = "/01234567\0" */
-                cache_log("[cgit] Cache path too long, caching is disabled: %s\n",
-                          path);
-                fn(cbdata);
-                return 0;
-        }
         if (!key)
                 key = "";
         hash = hash_str(key) % size;
-        strcpy(filename, path);
-        if (filename[len - 1] != '/')
-                filename[len++] = '/';
+        strbuf_addstr(&filename, path);
+        strbuf_ensure_end(&filename, '/');
         for (i = 0; i < 8; i++) {
-                sprintf(filename + len++, "%x",
-                        (unsigned char)(hash & 0xf));
+                strbuf_addf(&filename, "%x", (unsigned char)(hash & 0xf));
                 hash >>= 4;
         }
-        filename[len] = '\0';
-        strcpy(lockname, filename);
-        strcpy(lockname + len, ".lock");
+        strbuf_addbuf(&lockname, &filename);
+        strbuf_addstr(&lockname, ".lock");
         slot.fn = fn;
         slot.cbdata = cbdata;
         slot.ttl = ttl;
-        slot.cache_name = filename;
-        slot.lock_name = lockname;
+        slot.cache_name = strbuf_detach(&filename, NULL);
+        slot.lock_name = strbuf_detach(&lockname, NULL);
         slot.key = key;
         slot.keylen = strlen(key);
         return process_slot(&slot);
@@ -381,18 +371,13 @@ int cache_ls(const char *path)
         struct dirent *ent;
         int err = 0;
         struct cache_slot slot;
-        char fullname[1024];
-        char *name;
+        struct strbuf fullname = STRBUF_INIT;
+        size_t prefixlen;
 
         if (!path) {
                 cache_log("[cgit] cache path not specified\n");
                 return -1;
         }
-        if (strlen(path) > 1024 - 10) {
-                cache_log("[cgit] cache path too long: %s\n",
-                          path);
-                return -1;
-        }
         dir = opendir(path);
         if (!dir) {
                 err = errno;
@@ -400,30 +385,28 @@ int cache_ls(const char *path)
                           path, strerror(err), err);
                 return err;
         }
-        strcpy(fullname, path);
-        name = fullname + strlen(path);
-        if (*(name - 1) != '/') {
-                *name++ = '/';
-                *name = '\0';
-        }
-        slot.cache_name = fullname;
+        strbuf_addstr(&fullname, path);
+        strbuf_ensure_end(&fullname, '/');
+        prefixlen = fullname.len;
         while ((ent = readdir(dir)) != NULL) {
                 if (strlen(ent->d_name) != 8)
                         continue;
-                strcpy(name, ent->d_name);
+                strbuf_setlen(&fullname, prefixlen);
+                strbuf_addstr(&fullname, ent->d_name);
                 if ((err = open_slot(&slot)) != 0) {
                         cache_log("[cgit] unable to open path %s: %s (%d)\n",
-                                  fullname, strerror(err), err);
+                                  fullname.buf, strerror(err), err);
                         continue;
                 }
                 printf("%s %s %10"PRIuMAX" %s\n",
-                       name,
+                       fullname.buf,
                        sprintftime("%Y-%m-%d %H:%M:%S",
                                    slot.cache_st.st_mtime),
                        (uintmax_t)slot.cache_st.st_size,
                        slot.buf);
                 close_slot(&slot);
         }
+        slot.cache_name = strbuf_detach(&fullname, NULL);
         closedir(dir);
         return 0;
 }
diff --git a/cgit.c b/cgit.c
index 4e51283..f73c7b0 100644
--- a/cgit.c
+++ b/cgit.c
@@ -468,8 +468,8 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
         if (nongit) {
                 const char *name = ctx->repo->name;
                 rc = errno;
-                ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
-                                      "config error");
+                ctx->page.title = fmtalloc("%s - %s", ctx->cfg.root_title,
+                                                "config error");
                 ctx->repo = NULL;
                 cgit_print_http_headers(ctx);
                 cgit_print_docstart(ctx);
@@ -479,7 +479,7 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
                 cgit_print_docend();
                 return 1;
         }
-        ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
+        ctx->page.title = fmtalloc("%s - %s", ctx->repo->name, ctx->repo->desc);
 
         if (!ctx->repo->defbranch)
                 ctx->repo->defbranch = guess_defbranch();
@@ -577,21 +577,16 @@ static int cmp_repos(const void *a, const void *b)
 static char *build_snapshot_setting(int bitmap)
 {
         const struct cgit_snapshot_format *f;
-        char *result = xstrdup("");
-        char *tmp;
-        int len;
+        struct strbuf result = STRBUF_INIT;
 
         for (f = cgit_snapshot_formats; f->suffix; f++) {
                 if (f->bit & bitmap) {
-                        tmp = result;
-                        result = xstrdup(fmt("%s%s ", tmp, f->suffix));
-                        free(tmp);
+                        if (result.len)
+                                strbuf_addch(&result, ' ');
+                        strbuf_addstr(&result, f->suffix);
                 }
         }
-        len = strlen(result);
-        if (len)
-                result[len - 1] = '\0';
-        return result;
+        return strbuf_detach(&result, NULL);
 }
 
 static char *get_first_line(char *txt)
@@ -639,7 +634,7 @@ static void print_repo(FILE *f, struct cgit_repo *repo)
                 fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
         if (repo->snapshots != ctx.cfg.snapshots) {
                 char *tmp = build_snapshot_setting(repo->snapshots);
-                fprintf(f, "repo.snapshots=%s\n", tmp);
+                fprintf(f, "repo.snapshots=%s\n", tmp ? tmp : "");
                 free(tmp);
         }
         if (repo->max_stats != ctx.cfg.max_stats)
@@ -661,20 +656,22 @@ static void print_repolist(FILE *f, struct cgit_repolist *list, int start)
  */
 static int generate_cached_repolist(const char *path, const char *cached_rc)
 {
-        char *locked_rc;
+        struct strbuf locked_rc = STRBUF_INIT;
+        int result = 0;
         int idx;
         FILE *f;
 
-        locked_rc = xstrdup(fmt("%s.lock", cached_rc));
-        f = fopen(locked_rc, "wx");
+        strbuf_addf(&locked_rc, "%s.lock", cached_rc);
+        f = fopen(locked_rc.buf, "wx");
         if (!f) {
                 /* Inform about the error unless the lockfile already existed,
                  * since that only means we've got concurrent requests.
                  */