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Microsoft OS/2 SDK 03-01-1988

/*
 * Example of DosGenEnv usage
 *
 * This call gets the addresses of the environment strings and command
 * line arguments belonging to the current process
 *
 * Compile as: cl -AL -Lp -G0 getenv.c
 *
 * Created by Microsoft Corp. 1986
 */

#define INCL_DOSMISC

#include <os2def.h>
#include <bsedos.h>

main()
{
	USHORT EnvSegment;	/* Segment handle to the env strings */
	USHORT CmdOffset;	/* Offset within EnvSegment where the
				   command line arguments can be found */
	char *arg;		/* Pointer to data */

	DosGetEnv(&EnvSegment,&CmdOffset); /* Get environment information */

	/* Set arg to point to the environment strings */
	arg = (char *)((long)EnvSegment << 16);

	/* Print first environment string */
	printf("Environment parameter #1: %s\n",arg);

	/* Set arg to point to the command line arguments */
	arg = (char *)(((long)EnvSegment << 16) + CmdOffset);

	/* Print first command line argument */
	printf("Command line argument #1: %s\n",arg);
}

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