QsyVerifyValidationLstEntry()--Verify Validation List Entry API

Syntax

 #include <qsyvldl.h>

 int QsyVerifyValidationLstEntry
        (Qsy_Qual_Name_T             *Validation_Lst,
         Qsy_Entry_ID_Info_T         *Entry_ID,
         Qsy_Entry_Encr_Data_Info_T  *Encrypt_Data);

  Service Program Name: Name QSYVLDL

  Default Public Authority: *USE

  Threadsafe: Yes

The QsyVerifyValidationLstEntry() function verifies an entry in a validation list object. It verifies the entry by finding the validation list object, then finding the entry that is specified in the Entry_ID parameter. To find an entry, there must be an exact match in the entry for the value that is specified in the Entry_ID parameter and the length of the entry ID. For example, an entry ID value of "SMITH" with a length of 5 would not find an entry where the entry ID is "SMITH " and the length is 7.

If the entry is found, the data specified in the Encrypt_Data parameter is encrypted by the system and compared to the encrypted data that is stored for the entry. If the encrypted data fields do not match, then -2 is returned by the function.

The verification of an entry should be done within the same process as the work that is being done on behalf of this entry ID so that there is accountability for the actions that are taken. Also, an entry ID should be verified just before the work is done on behalf of that entry ID, instead of verifying a set of entry IDs and then doing work on behalf of the different entry IDs.

Authorities

Validation List Object: *USE
Validation List Object Library: *EXECUTE

Parameters

Validation_Lst

(Input) A pointer to the qualified object name of the validation list that contains the entry to verify. The first 10 characters specify the validation list name, and the second 10 characters specify the library. You can use these special values for the library name:

*CURLIB	The current library is used to locate the validation list. If there is no current library, QGPL (general purpose library) is used.
*LIBL	The library list is used to locate the validation list.

Entry_ID

(Input)

A pointer to the entry ID information. The format of the Qsy_Entry_ID_Info_T structure is as follows:

int	Entry_ID_Len	The number of bytes of data that is provided as the entry ID. Possible values are from 1 through 100.
unsigned int	Entry_ID_CCSID	An integer that represents the CCSID for the entry ID. Valid CCSID values are in the range 1 through 65535. This field is not used to verify the entry.
unsigned char	Entry_ID[100]	The data that is used to identify this entry in the validation list.

Encrypt_Data

(Input)

A pointer to the encrypted data information that is associated with the entry ID. The format of the Qsy_Entry_Encr_Data_Info_T structure is as follows:

int	Encr_Data_Len	The number of bytes of data to be encrypted and compared to the encrypted data in the validation list entry. Possible values are 1 through 600.
unsigned int	Encr_Data_CCSID	An integer that represents the CCSID for the data to encrypt. Valid CCSID values are in the range 0 through 65535. This value is not used to verify the entry.
unsigned char	Encr_Data[600]	The data to be encrypted and compared to the encrypted data that is found for the specified entry ID in the validation list.

Return Value

0	QsyVerifyValidationLstEntry() was successful.
-1	QsyVerifyValidationLstEntry() was not successful. The errno global variable is set to indicate the error.
-2	QsyVerifyValidationLstEntry() was not successful because the encrypted data was incorrect.

Error Conditions

If QsyVerifyValidationLstEntry() is not successful, errno indicates one of the following errors:

3401	[EACCES] The current user does not have USE authority to the validation list object, or does not have EXECUTE authority to the validation list object library.
3406	[EAGAIN] The validation list object is currently locked by another process.
3484	[EDAMAGE] The validation list object is damaged.
3021	[EINVAL] Parameter value is not valid.
3025	[ENOENT] The validation list object was not found.
3026	[ENOREC] Specified entry does not exist.
3474	[EUNKNOWN] Unknown system state. Check the job log for a CPF9872 message.

Example

The following example validates the entry for a user named FRED in the validation list object WEBUSRS.

Note: By using the code examples, you agree to the terms of the Code license and disclaimer information.

#include <qsyvldl.h>

main()
{
  #define VLD_LST  "WEBUSRS   WEBLIB    "
  Qsy_Entry_ID_Info_T    entry_info;
  Qsy_Entry_Encr_Data_Info_T  encrypt_data;

  entry_info.Entry_ID_Len = 4;
  strncpy(entry_info.Entry_ID,"FRED",entry_info.Entry_ID_Len);
  encrypt_data.Encr_Data_Len = 7;
  strncpy(encrypt_data.Encr_Data,"MSN1TJG",
            encrypt_data.Encr_Data_Len);

  if (0 != QsyVerifyValidationLstEntry((Qsy_Qual_Name_T *)&VLD_LST,
                                       &entry_info,
                                       &encrypt_data))
     perror("QsyVerifyValidationLstEntry()");

}

API introduced: V4R1

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