/****************************************************************
 *								*
 *	Copyright 2001, 2009 Fidelity Information Services, Inc	*
 *								*
 *	This source code contains the intellectual property	*
 *	of its copyright holder(s), and is made available	*
 *	under a license.  If you do not know the terms of	*
 *	the license, please stop and do not read further.	*
 *								*
 ****************************************************************/

#include "mdef.h"

#include "gtm_pwd.h"
#include "gtm_unistd.h"
#include "gtm_stdio.h"
#include "gtm_time.h"
#include "gtm_string.h"
#include <errno.h>

#include "gdsroot.h"
#include "gdsbt.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "jnl.h"

#ifdef UNICODE_SUPPORTED
#include "gtm_icu_api.h"	/* needed by *TYPEMASK* macros defined in gtm_utf8.h */
#include "gtm_utf8.h"
#endif

GBLREF	uint4		process_id;
GBLREF	boolean_t	gtm_utf8_mode;

void jnl_prc_vector (jnl_process_vector *pv)
{
	unsigned char	*c, *s, *ptrstart, *ptrend, *ptrinvalidbegin;
	struct passwd	*pw;
	uid_t		eff_uid;       /* try to see why gets pwuid == nil */
	int		gethostname_res;
	time_t		temp_time;

	memset(pv, 0, SIZEOF(jnl_process_vector));

	pv->jpv_pid = process_id;
	time(&temp_time);
	pv->jpv_time = temp_time;
	GETHOSTNAME(pv->jpv_node, JPV_LEN_NODE, gethostname_res);

	eff_uid = geteuid();          /* save results of each step */
	errno = 0;                    /* force to known value per man page */
	GETPWUID(eff_uid, pw);
	if (pw)
	{
		strncpy(pv->jpv_user, pw->pw_name, JPV_LEN_USER);
		strncpy(pv->jpv_prcnam, pw->pw_name, JPV_LEN_PRCNAM);
		UNICODE_ONLY(
		/* In UTF8 mode, trim the string (if necessary) to contain only as many valid multi-byte characters as can fit in */
		if (gtm_utf8_mode)
		{
			gtm_utf8_trim_invalid_tail((unsigned char *)pv->jpv_user, JPV_LEN_USER);
			gtm_utf8_trim_invalid_tail((unsigned char *)pv->jpv_prcnam, JPV_LEN_PRCNAM);
		}
		)
	} else
	{
		DEBUG_ONLY(
			strncpy(pv->jpv_user,"ERROR=",JPV_LEN_USER);
			if (errno < 1000)               /* protect against overflow */
				c = i2asc((uchar_ptr_t)pv->jpv_user + 6, errno);  /* past = above */
		)
	}
	endpwent();                        /* close passwd file to free channel */
	if ((c = (unsigned char *)TTYNAME(0)) != NULL)
	{	/* Get basename for tty */
		for (s = c + strlen((char*)c);  s > c;  --s)
		{
			if (*s == '/')
			{
				++s;
				break;
			}
		}
		strncpy(pv->jpv_terminal, (char *)s, JPV_LEN_TERMINAL);
	}
}