read_branches_file: simplify string handling

diff --git a/http-push.c b/http-push.c
index 1f3788f634ba29d26a8558b17cab71ac283cdb85..37baff818f03f6e5c36799dde19647cc6a8bb0e0 100644 (file)
--- a/http-push.c
+++ b/http-push.c
@@ -786,21 +786,21 @@ xml_start_tag(void *userData, const char *name, const char **atts)
 {
        struct xml_ctx *ctx = (struct xml_ctx *)userData;
        const char *c = strchr(name, ':');
-       int new_len;
+       int old_namelen, new_len;
 
        if (c == NULL)
                c = name;
        else
                c++;
 
-       new_len = strlen(ctx->name) + strlen(c) + 2;
+       old_namelen = strlen(ctx->name);
+       new_len = old_namelen + strlen(c) + 2;
 
        if (new_len > ctx->len) {
                ctx->name = xrealloc(ctx->name, new_len);
                ctx->len = new_len;
        }
-       strcat(ctx->name, ".");
-       strcat(ctx->name, c);
+       xsnprintf(ctx->name + old_namelen, ctx->len - old_namelen, ".%s", c);
 
        free(ctx->cdata);
        ctx->cdata = NULL;