Function handle_content_length_frame

src/mcp/mcp.c:6203–6232

Handle a Content-Length-framed message (LSP-style transport). * Reads headers, body, processes request, writes framed response. */

/* Handle a Content-Length-framed message (LSP-style transport).
 * Reads headers, body, processes request, writes framed response. */
static void handle_content_length_frame(cbm_mcp_server_t *srv, FILE *in, FILE *out, char **line,
                                        size_t *cap, int content_len) {
    /* Skip blank line(s) between header and body */
    while (cbm_getline(line, cap, in) > 0) {
        size_t hlen = strlen(*line);
        while (hlen > 0 && ((*line)[hlen - SKIP_ONE] == '\n' || (*line)[hlen - SKIP_ONE] == '\r')) {
            (*line)[--hlen] = '\0';
        }
        if (hlen == 0) {
            break;
        }
    }

    char *body = malloc((size_t)content_len + SKIP_ONE);
    if (!body) {
        return;
    }
    size_t nread = fread(body, SKIP_ONE, (size_t)content_len, in);
    body[nread] = '\0';

    char *resp = cbm_mcp_server_handle(srv, body);
    free(body);

    if (resp) {
        size_t rlen = strlen(resp);
        (void)fprintf(out, "Content-Length: %zu\r\n\r\n%s", rlen, resp);
        (void)fflush(out);
        free(resp);
    }
}

#ifndef _WIN32
/* Unix 3-phase poll: non-blocking fd check, FILE* buffer peek, blocking poll.