mib.c

snmp up 2

 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_gauge(u_char ** buf, size_t * buf_len, size_t * out_len,
                     int allow_realloc,
                     netsnmp_variable_list * var,
                     struct enum_list *enums,
                     const char *hint, const char *units)
{
    char            tmp[32];

    if ((var->type != ASN_GAUGE) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] =
            "Wrong Type (should be Gauge32 or Unsigned32): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    }

    if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "Gauge32: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }
    if (hint) {
        if (!sprint_realloc_hinted_integer(buf, buf_len, out_len,
                                           allow_realloc,
                                           *var->val.integer, 'u', hint,
                                           units)) {
            return 0;
        }
    } else {
        sprintf(tmp, "%lu", *var->val.integer);
        if (!snmp_strcat
            (buf, buf_len, out_len, allow_realloc, (const u_char *) tmp)) {
            return 0;
        }
    }
    if (units) {
        return (snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) " ")
                && snmp_strcat(buf, buf_len, out_len, allow_realloc,
                               (const u_char *) units));
    }
    return 1;
}


/**
 * Prints a counter value into a buffer.
 *
 * If allow_realloc is true the buffer will be (re)allocated to fit in the 
 * needed size. (Note: *buf may change due to this.)
 * 
 * @param buf      Address of the buffer to print to.
 * @param buf_len  Address to an integer containing the size of buf.
 * @param out_len  Incremented by the number of characters printed.
 * @param allow_realloc if not zero reallocate the buffer to fit the 
 *                      needed size.
 * @param var      The variable to encode.
 * @param enums    The enumeration ff this variable is enumerated. may be NULL.
 * @param hint     Contents of the DISPLAY-HINT clause of the MIB.
 *                 See RFC 1903 Section 3.1 for details. may be NULL.
 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_counter(u_char ** buf, size_t * buf_len, size_t * out_len,
                       int allow_realloc,
                       netsnmp_variable_list * var,
                       struct enum_list *enums,
                       const char *hint, const char *units)
{
    char            tmp[32];

    if ((var->type != ASN_COUNTER) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be Counter32): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    }

    if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "Counter32: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }
    sprintf(tmp, "%lu", *var->val.integer);
    if (!snmp_strcat
        (buf, buf_len, out_len, allow_realloc, (const u_char *) tmp)) {
        return 0;
    }
    if (units) {
        return (snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) " ")
                && snmp_strcat(buf, buf_len, out_len, allow_realloc,
                               (const u_char *) units));
    }
    return 1;
}


/**
 * Prints a network address into a buffer.
 *
 * If allow_realloc is true the buffer will be (re)allocated to fit in the 
 * needed size. (Note: *buf may change due to this.)
 * 
 * @param buf      Address of the buffer to print to.
 * @param buf_len  Address to an integer containing the size of buf.
 * @param out_len  Incremented by the number of characters printed.
 * @param allow_realloc if not zero reallocate the buffer to fit the 
 *                      needed size.
 * @param var      The variable to encode.
 * @param enums    The enumeration ff this variable is enumerated. may be NULL.
 * @param hint     Contents of the DISPLAY-HINT clause of the MIB.
 *                 See RFC 1903 Section 3.1 for details. may be NULL.
 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_networkaddress(u_char ** buf, size_t * buf_len,
                              size_t * out_len, int allow_realloc,
                              netsnmp_variable_list * var,
                              struct enum_list *enums, const char *hint,
                              const char *units)
{
    size_t          i;

    if ((var->type != ASN_IPADDRESS) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be NetworkAddress): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    }

    if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "Network Address: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }

    while ((*out_len + (var->val_len * 3) + 2) >= *buf_len) {
        if (!(allow_realloc && snmp_realloc(buf, buf_len))) {
            return 0;
        }
    }

    for (i = 0; i < var->val_len; i++) {
        sprintf((char *) (*buf + *out_len), "%02X", var->val.string[i]);
        *out_len += 2;
        if (i < var->val_len - 1) {
            *(*buf + *out_len) = ':';
            (*out_len)++;
        }
    }
    return 1;
}


/**
 * Prints an ip-address into a buffer.
 *
 * If allow_realloc is true the buffer will be (re)allocated to fit in the 
 * needed size. (Note: *buf may change due to this.)
 * 
 * @param buf      Address of the buffer to print to.
 * @param buf_len  Address to an integer containing the size of buf.
 * @param out_len  Incremented by the number of characters printed.
 * @param allow_realloc if not zero reallocate the buffer to fit the 
 *                      needed size.
 * @param var      The variable to encode.
 * @param enums    The enumeration ff this variable is enumerated. may be NULL.
 * @param hint     Contents of the DISPLAY-HINT clause of the MIB.
 *                 See RFC 1903 Section 3.1 for details. may be NULL.
 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_ipaddress(u_char ** buf, size_t * buf_len, size_t * out_len,
                         int allow_realloc,
                         netsnmp_variable_list * var,
                         struct enum_list *enums,
                         const char *hint, const char *units)
{
    u_char         *ip = var->val.string;

    if ((var->type != ASN_IPADDRESS) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be IpAddress): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    }

    if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "IpAddress: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }
    while ((*out_len + 17) >= *buf_len) {
        if (!(allow_realloc && snmp_realloc(buf, buf_len))) {
            return 0;
        }
    }
    sprintf((char *) (*buf + *out_len), "%d.%d.%d.%d", ip[0], ip[1], ip[2],
            ip[3]);
    *out_len += strlen((char *) (*buf + *out_len));
    return 1;
}


/**
 * Prints a null value into a buffer.
 *
 * If allow_realloc is true the buffer will be (re)allocated to fit in the 
 * needed size. (Note: *buf may change due to this.)
 * 
 * @param buf      Address of the buffer to print to.
 * @param buf_len  Address to an integer containing the size of buf.
 * @param out_len  Incremented by the number of characters printed.
 * @param allow_realloc if not zero reallocate the buffer to fit the 
 *                      needed size.
 * @param var      The variable to encode.
 * @param enums    The enumeration ff this variable is enumerated. may be NULL.
 * @param hint     Contents of the DISPLAY-HINT clause of the MIB.
 *                 See RFC 1903 Section 3.1 for details. may be NULL.
 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_null(u_char ** buf, size_t * buf_len, size_t * out_len,
                    int allow_realloc,
                    netsnmp_variable_list * var,
                    struct enum_list *enums,
                    const char *hint, const char *units)
{
    if ((var->type != ASN_NULL) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be NULL): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    } else {
        u_char          str[] = "NULL";
        return snmp_strcat(buf, buf_len, out_len, allow_realloc, str);
    }
}


/**
 * Prints a bit string into a buffer.
 *
 * If allow_realloc is true the buffer will be (re)allocated to fit in the 
 * needed size. (Note: *buf may change due to this.)
 * 
 * @param buf      Address of the buffer to print to.
 * @param buf_len  Address to an integer containing the size of buf.
 * @param out_len  Incremented by the number of characters printed.
 * @param allow_realloc if not zero reallocate the buffer to fit the 
 *                      needed size.
 * @param var      The variable to encode.
 * @param enums    The enumeration ff this variable is enumerated. may be NULL.
 * @param hint     Contents of the DISPLAY-HINT clause of the MIB.
 *                 See RFC 1903 Section 3.1 for details. may be NULL.
 * @param units    Contents of the UNITS clause of the MIB. may be NULL.
 * 
 * @return 1 on success, or 0 on failure (out of memory, or buffer to
 *         small when not allowed to realloc.)
 */
int
sprint_realloc_bitstring(u_char ** buf, size_t * buf_len, size_t * out_len,
                         int allow_realloc,
                         netsnmp_variable_list * var,
                         struct enum_list *enums,
                         const char *hint, const char *units)
{
    int             len, bit;
    u_char         *cp;
    char           *enum_string;

    if ((var->type != ASN_BIT_STR && var->type != ASN_OCTET_STR) &&
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be BITS): ";
        if (snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return sprint_realloc_by_type(buf, buf_len, out_len,
                                          allow_realloc, var, NULL, NULL,
                                          NULL);
        } else {
            return 0;
        }
    }

    if (netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "\"";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    } else {
        u_char          str[] = "BITS: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }
    if (!sprint_realloc_hexstring(buf, buf_len, out_len, allow_realloc,
                                  var->val.bitstring, var->val_len)) {
        return 0;
    }

    if (netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
        u_char          str[] = "\"";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    } else {
        cp = var->val.bitstring;
        for (len = 0; len < (int) var->val_len; len++) {
            for (bit = 0; bit < 8; bit++) {
                if (*cp & (0x80 >> bit)) {
                    enum_string = NULL;
                    for (; enums; enums = enums->next) {
                        if (enums->value == (len * 8) + bit) {
                            enum_string = enums->label;