mib.c

snmp up 2

    *out_len += strlen((char *) (*buf + *out_len));

    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 double into a buffer.
 *
 * The variable var is encoded as a double precision floating point value.
 * 
 * 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_double(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_OPAQUE_DOUBLE) && 
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        const char      str[] = "Wrong Type (should be Double): ";
        if (snmp_strcat
            (buf, buf_len, out_len, allow_realloc, (const u_char *) 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)) {
        if (!snmp_strcat
            (buf, buf_len, out_len, allow_realloc,
             (const u_char *) "Opaque: Float: ")) {
            return 0;
        }
    }

    /*
     * How much space needed for max. length double?  128 is overkill.  
     */

    while ((*out_len + 128 + 1) >= *buf_len) {
        if (!(allow_realloc && snmp_realloc(buf, buf_len))) {
            return 0;
        }
    }

    sprintf((char *) (*buf + *out_len), "%f", *var->val.doubleVal);
    *out_len += strlen((char *) (*buf + *out_len));

    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;
}

#endif                          /* OPAQUE_SPECIAL_TYPES */


/**
 * Prints a counter into a buffer.
 *
 * The variable var is encoded as a counter value.
 * 
 * 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_counter64(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            a64buf[I64CHARSZ + 1];

    if ((var->type != ASN_COUNTER64
#ifdef OPAQUE_SPECIAL_TYPES
        && var->type != ASN_OPAQUE_COUNTER64
        && var->type != ASN_OPAQUE_I64 && var->type != ASN_OPAQUE_U64
#endif
        ) && (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be Counter64): ";
        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)) {
#ifdef OPAQUE_SPECIAL_TYPES
        if (var->type != ASN_COUNTER64) {
            if (!snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) "Opaque: ")) {
                return 0;
            }
        }
#endif
#ifdef OPAQUE_SPECIAL_TYPES
        switch (var->type) {
        case ASN_OPAQUE_U64:
            if (!snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) "UInt64: ")) {
                return 0;
            }
            break;
        case ASN_OPAQUE_I64:
            if (!snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) "Int64: ")) {
                return 0;
            }
            break;
        case ASN_COUNTER64:
        case ASN_OPAQUE_COUNTER64:
#endif
            if (!snmp_strcat
                (buf, buf_len, out_len, allow_realloc,
                 (const u_char *) "Counter64: ")) {
                return 0;
            }
#ifdef OPAQUE_SPECIAL_TYPES
        }
#endif
    }
#ifdef OPAQUE_SPECIAL_TYPES
    if (var->type == ASN_OPAQUE_I64) {
        printI64(a64buf, var->val.counter64);
        if (!snmp_strcat
            (buf, buf_len, out_len, allow_realloc,
             (const u_char *) a64buf)) {
            return 0;
        }
    } else {
#endif
        printU64(a64buf, var->val.counter64);
        if (!snmp_strcat
            (buf, buf_len, out_len, allow_realloc,
             (const u_char *) a64buf)) {
            return 0;
        }
#ifdef OPAQUE_SPECIAL_TYPES
    }
#endif

    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 an object identifier 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_opaque(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_OPAQUE
#ifdef OPAQUE_SPECIAL_TYPES
        && var->type != ASN_OPAQUE_COUNTER64
        && var->type != ASN_OPAQUE_U64
        && var->type != ASN_OPAQUE_I64
        && var->type != ASN_OPAQUE_FLOAT && var->type != ASN_OPAQUE_DOUBLE
#endif                          /* OPAQUE_SPECIAL_TYPES */
        ) && (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] = "Wrong Type (should be Opaque): ";
        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;
        }
    }
#ifdef OPAQUE_SPECIAL_TYPES
    switch (var->type) {
    case ASN_OPAQUE_COUNTER64:
    case ASN_OPAQUE_U64:
    case ASN_OPAQUE_I64:
        return sprint_realloc_counter64(buf, buf_len, out_len,
                                        allow_realloc, var, enums, hint,
                                        units);
        break;

    case ASN_OPAQUE_FLOAT:
        return sprint_realloc_float(buf, buf_len, out_len, allow_realloc,
                                    var, enums, hint, units);
        break;

    case ASN_OPAQUE_DOUBLE:
        return sprint_realloc_double(buf, buf_len, out_len, allow_realloc,
                                     var, enums, hint, units);
        break;

    case ASN_OPAQUE:
#endif
        if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT)) {
            u_char          str[] = "OPAQUE: ";
            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.string, var->val_len)) {
            return 0;
        }
#ifdef OPAQUE_SPECIAL_TYPES
    }
#endif
    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 an object identifier 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_object_identifier(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             buf_overflow = 0;

    if ((var->type != ASN_OBJECT_ID) &&
        (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT))) {
        u_char          str[] =
            "Wrong Type (should be OBJECT IDENTIFIER): ";
        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[] = "OID: ";
        if (!snmp_strcat(buf, buf_len, out_len, allow_realloc, str)) {
            return 0;
        }
    }

    netsnmp_sprint_realloc_objid_tree(buf, buf_len, out_len, allow_realloc,
                                      &buf_overflow,
                                      (oid *) (var->val.objid),
                                      var->val_len / sizeof(oid));

    if (buf_overflow) {
        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;
}