static int sc_for_req_header()

in native/common/jk_ajp_common.c [248:322]

• 66 lines of code
• 25 McCabe index (conditional complexity)

static int sc_for_req_header(const char *header_name)
{
    char header[16];
    size_t len = strlen(header_name);
    const char *p = header_name;
    int i = 0;

    /* ACCEPT-LANGUAGE is the longest header
     * that is of interest.
     */
    if (len < 4 || len > 15)
        return UNKNOWN_METHOD;

    while (*p) {
        header[i++] = toupper((unsigned char)*p);
        p++;
    }

    header[i] = '\0';
    p = &header[1];

    /* Always do memcmp including the final \0-termination character.
     */
    switch (header[0]) {
        case 'A':
            if (memcmp(p, "CCEPT", 6) == 0) {
                if (!header[6])
                    return SC_ACCEPT;
                if (header[6] == '-') {
                    p += 6;
                    if (memcmp(p, "CHARSET", 8) == 0)
                        return SC_ACCEPT_CHARSET;
                    if (memcmp(p,  "ENCODING", 9) == 0)
                        return SC_ACCEPT_ENCODING;
                    if (memcmp(p, "LANGUAGE", 9) == 0)
                        return SC_ACCEPT_LANGUAGE;
                }
                return UNKNOWN_METHOD;
            }
            if (memcmp(p, "UTHORIZATION", 13) == 0)
                return SC_AUTHORIZATION;
        break;
        case 'C':
            if(memcmp(p, "OOKIE2", 7) == 0)
                return SC_COOKIE2;
            if (memcmp(p, "OOKIE", 6) == 0)
                return SC_COOKIE;
            if(memcmp(p, "ONNECTION", 10) == 0)
                return SC_CONNECTION;
            if(memcmp(p, "ONTENT-TYPE", 12) == 0)
                return SC_CONTENT_TYPE;
            if(memcmp(p, "ONTENT-LENGTH", 14) == 0)
                return SC_CONTENT_LENGTH;
        break;
        case 'H':
            if(memcmp(p, "OST", 4) == 0)
                return SC_HOST;
        break;
        case 'P':
            if(memcmp(p, "RAGMA", 6) == 0)
                return SC_PRAGMA;
        break;
        case 'R':
            if(memcmp(p, "EFERER", 7) == 0)
                return SC_REFERER;
        break;
        case 'U':
            if(memcmp(p, "SER-AGENT", 10) == 0)
                return SC_USER_AGENT;
        break;
        default:
        break;;
    }
    return UNKNOWN_METHOD;
}