#include <stdio.h>		/* for sprintf,etc. */
#include <stdlib.h>		/* for putenv,etc. */	
#include <string.h>		/* for string functions */

/* putenvFromArgs -- set environment from arguments */
int putenvFromArgs(
  int argc,                     /* how many arguments */
  char **argv,                  /* command line arguments */
  char *ArgName,                /* argument of interest */
  char *EnvName)                /* environment var to set */
{
  char* EnvValue=0;              /* next arg after arg_name */
  static char EnvStr[200];       /* environment string */

  /* set EnvValue if ArgName found */
  char **argp = argv;           /* iterator for arguments */
  for (; *argp; argp++)
     if ( !strcmp(*argp,ArgName))
        EnvValue = *++argp;

  /* set environment */
  if (EnvValue)
    {
      sprintf(EnvStr,"%s=%s",EnvName,EnvValue);
      return putenv(EnvStr);
    }
  else
    return 0;
}