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# lr_get_attrib_string

Returns a string type value of an argument passed to the script run.

    char *lr_get_attrib_string( char *argument_name );

Alphabetical Listing - C Language Utility Functions

## Arguments

Name | Comments
--- | ---
argument_name | The name of a script invocation argument.

The lr_get_attrib_string function returns the value of an argument that was passed to the run of the script. For example, lr_get_attrib_string("ipv6") returns the IPv6 address of the current Vuser.

To view the arguments passed to a script run, see mdrv_cmd.txt in the script folder.

## Return Values

The function returns the value of the argument as a string. If the argument is empty (for example a flag), an empty string is returned. If the argument does not exist, NULL is returned.

## Parameterization

You cannot use standard parameterization for any arguments in this function.

## Example

In the following example, lr_get_attrib_string retrieves the name of the host string value from the mdrv command line string that was used to run the script.

Copy code

    D:\<product>\bin\mdrv.exe
        -usr D:\LR_Tests\C\get_attribute\get_attribute.usr
        -out D:\LR_Tests\C\get_attribute\out
        -host sun2   -loop 4   -time 1.5

where host, loop and time are mdrv command line parameters to be used in get_attribute.usr. lr_get_attrib_string assigns the value of parameter "`host"` to the variable "server".

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    vuser_init() {
    /* LPCSTR is a char * .  */
         LPCSTR server;
         LPCSTR user = "tomh";
         LPCSTR password = "pwd";
         LPCSTR connect[10];
         server=lr_get_attrib_string("host");
         if (server==NULL){
              lr_error_message("Failed to login. Unknown host.\n");
              return(0);
         }

    /*Prepare a string with login information */
         sprintf(connect,"%s%s%s", user, password, server);
         lr_message("%s", connect);
         return 0;

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