/*
efunctions.c: this file contains the efunctions called from
inside eval_instruction() in interpret.c. Note: if you are adding
local efunctions that are specific to your driver, you would be better
off adding them to a separate source file. Doing so will make it much
easier for you to upgrade (won't have to patch this file). Be sure
to #include "lpc_incl.h" in that separate source file.
*/
#include "std.h"
#include "lpc_incl.h"
#include "file_incl.h"
#include "lint.h"
#include "include/localtime.h"
#include "port.h"
#include "crypt.h"
#include "efun_protos.h"
#include <stdio.h>
/* get a value for CLK_TCK for use by times() */
#if (defined(TIMES) && !defined(RUSAGE))
/* this may need #ifdef'd to handle different types of machines */
#include <limits.h>
#endif
#ifdef F_CRYPT
#define SALT_LEN 8
#ifdef CUSTOM_CRYPT
#define CRYPT(x, y) custom_crypt(x, y, 0)
#endif
void
f_crypt (void)
{
const char *res, *p;
char salt[SALT_LEN + 1];
const char *choice =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
if (sp->type == T_STRING && SVALUE_STRLEN(sp) >= 2) {
p = sp->u.string;
} else {
int i;
for (i = 0; i < SALT_LEN; i++)
salt[i] = choice[random_number(strlen(choice))];
salt[SALT_LEN] = 0;
p = salt;
}
res = string_copy(CRYPT((sp-1)->u.string, p), "f_crypt");
pop_stack();
free_string_svalue(sp);
sp->subtype = STRING_MALLOC;
sp->u.string = res;
}
#endif
#ifdef F_OLDCRYPT
void
f_oldcrypt (void) {
#ifndef WIN32
char *res, salt[3];
const char *choice =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
if (sp->type == T_STRING && SVALUE_STRLEN(sp) >= 2) {
salt[0] = sp->u.string[0];
salt[1] = sp->u.string[1];
free_string_svalue(sp--);
} else {
salt[0] = choice[random_number(strlen(choice))];
salt[1] = choice[random_number(strlen(choice))];
pop_stack();
}
salt[2] = 0;
res = string_copy(OLDCRYPT(sp->u.string, salt), "f_crypt");
free_string_svalue(sp);
sp->subtype = STRING_MALLOC;
sp->u.string = res;
#endif
}
#endif
#ifdef F_LOCALTIME
/* FIXME: most of the #ifdefs here should be based on configure checks
instead. Same for rusage() */
void
f_localtime (void)
{
struct tm *tm;
array_t *vec;
time_t lt;
#ifdef sequent
struct timezone tz;
#endif
lt = sp->u.number;
tm = localtime(<);
vec = allocate_empty_array(11);
vec->item[LT_SEC].type = T_NUMBER;
vec->item[LT_SEC].u.number = tm->tm_sec;
vec->item[LT_MIN].type = T_NUMBER;
vec->item[LT_MIN].u.number = tm->tm_min;
vec->item[LT_HOUR].type = T_NUMBER;
vec->item[LT_HOUR].u.number = tm->tm_hour;
vec->item[LT_MDAY].type = T_NUMBER;
vec->item[LT_MDAY].u.number = tm->tm_mday;
vec->item[LT_MON].type = T_NUMBER;
vec->item[LT_MON].u.number = tm->tm_mon;
vec->item[LT_YEAR].type = T_NUMBER;
vec->item[LT_YEAR].u.number = tm->tm_year + 1900;
vec->item[LT_WDAY].type = T_NUMBER;
vec->item[LT_WDAY].u.number = tm->tm_wday;
vec->item[LT_YDAY].type = T_NUMBER;
vec->item[LT_YDAY].u.number = tm->tm_yday;
vec->item[LT_GMTOFF].type = T_NUMBER;
vec->item[LT_ZONE].type = T_STRING;
vec->item[LT_ZONE].subtype = STRING_MALLOC;
vec->item[LT_ISDST].type = T_NUMBER;
#if defined(BSD42) || defined(apollo) || defined(_AUX_SOURCE) \
|| defined(OLD_ULTRIX)
/* 4.2 BSD doesn't seem to provide any way to get these last three values */
vec->item[LT_GMTOFF].u.number = 0;
vec->item[LT_ZONE].type = T_NUMBER;
vec->item[LT_ZONE].u.number = 0;
vec->item[LT_ISDST].u.number = -1;
#else /* BSD42 */
vec->item[LT_ISDST].u.number = tm->tm_isdst;
#if defined(sequent)
vec->item[LT_GMTOFF].u.number = 0;
gettimeofday(NULL, &tz);
vec->item[LT_GMTOFF].u.number = tz.tz_minuteswest;
vec->item[LT_ZONE].u.string =
string_copy(timezone(tz.tz_minuteswest, tm->tm_isdst), "f_localtime");
#else /* sequent */
#if (defined(hpux) || defined(_SEQUENT_) || defined(_AIX) || defined(SunOS_5) \
|| defined(SVR4) || defined(sgi) || defined(linux) || defined(cray) \
)
if (!tm->tm_isdst) {
vec->item[LT_GMTOFF].u.number = timezone;
vec->item[LT_ZONE].u.string = string_copy(tzname[0], "f_localtime");
} else {
#if (defined(_AIX) || defined(hpux) || defined(linux) || defined(cray) \
)
vec->item[LT_GMTOFF].u.number = timezone;
#else
vec->item[LT_GMTOFF].u.number = altzone;
#endif
vec->item[LT_ZONE].u.string = string_copy(tzname[1], "f_localtime");
}
#else
#ifndef WIN32
vec->item[LT_GMTOFF].u.number = tm->tm_gmtoff;
vec->item[LT_ZONE].u.string = string_copy(tm->tm_zone, "f_localtime");
#else
vec->item[LT_GMTOFF].u.number = _timezone;
vec->item[LT_ZONE].u.string = string_copy(_tzname[_daylight?1:0],"f_localtime");
#endif
#endif
#endif /* sequent */
#endif /* BSD42 */
put_array(vec);
}
#endif
#ifdef F_RUSAGE
#ifdef WIN32
void f_rusage (void)
{
error("rusage() not supported under Windows.\n");
}
#else
#ifdef RUSAGE
void
f_rusage (void)
{
struct rusage rus;
mapping_t *m;
long usertime, stime;
int maxrss;
if (getrusage(RUSAGE_SELF, &rus) < 0) {
m = allocate_mapping(0);
} else {
usertime = rus.ru_utime.tv_sec * 1000 + rus.ru_utime.tv_usec / 1000;
stime = rus.ru_stime.tv_sec * 1000 + rus.ru_stime.tv_usec / 1000;
maxrss = rus.ru_maxrss;
#ifdef sun
maxrss *= getpagesize() / 1024;
#else
#ifdef __linux__
int fd = open("/proc/self/statm", O_RDONLY);
char buf[256];
buf[read(fd, buf, 256)] = 0;
close(fd);
sscanf(buf, "%*d %d %*s", &maxrss);
maxrss *= getpagesize() / 1024;
#endif
#endif
m = allocate_mapping(16);
add_mapping_pair(m, "utime", usertime);
add_mapping_pair(m, "stime", stime);
add_mapping_pair(m, "maxrss", maxrss);
add_mapping_pair(m, "ixrss", rus.ru_ixrss);
add_mapping_pair(m, "idrss", rus.ru_idrss);
add_mapping_pair(m, "isrss", rus.ru_isrss);
add_mapping_pair(m, "minflt", rus.ru_minflt);
add_mapping_pair(m, "majflt", rus.ru_majflt);
add_mapping_pair(m, "nswap", rus.ru_nswap);
add_mapping_pair(m, "inblock", rus.ru_inblock);
add_mapping_pair(m, "oublock", rus.ru_oublock);
add_mapping_pair(m, "msgsnd", rus.ru_msgsnd);
add_mapping_pair(m, "msgrcv", rus.ru_msgrcv);
add_mapping_pair(m, "nsignals", rus.ru_nsignals);
add_mapping_pair(m, "nvcsw", rus.ru_nvcsw);
add_mapping_pair(m, "nivcsw", rus.ru_nivcsw);
}
push_refed_mapping(m);
}
#else
#ifdef GET_PROCESS_STATS
void
f_rusage (void)
{
struct process_stats ps;
mapping_t *m;
int utime, stime, maxrss;
if (get_process_stats(NULL, PS_SELF, &ps, NULL) == -1)
m = allocate_mapping(0);
else {
utime = ps.ps_utime.tv_sec * 1000 + ps.ps_utime.tv_usec / 1000;
stime = ps.ps_stime.tv_sec * 1000 + ps.ps_stime.tv_usec / 1000;
maxrss = ps.ps_maxrss * getpagesize() / 1024;
m = allocate_mapping(19);
add_mapping_pair(m, "utime", utime);
add_mapping_pair(m, "stime", stime);
add_mapping_pair(m, "maxrss", maxrss);
add_mapping_pair(m, "pagein", ps.ps_pagein);
add_mapping_pair(m, "reclaim", ps.ps_reclaim);
add_mapping_pair(m, "zerofill", ps.ps_zerofill);
add_mapping_pair(m, "pffincr", ps.ps_pffincr);
add_mapping_pair(m, "pffdecr", ps.ps_pffdecr);
add_mapping_pair(m, "swap", ps.ps_swap);
add_mapping_pair(m, "syscall", ps.ps_syscall);
add_mapping_pair(m, "volcsw", ps.ps_volcsw);
add_mapping_pair(m, "involcsw", ps.ps_involcsw);
add_mapping_pair(m, "signal", ps.ps_signal);
add_mapping_pair(m, "lread", ps.ps_lread);
add_mapping_pair(m, "lwrite", ps.ps_lwrite);
add_mapping_pair(m, "bread", ps.ps_bread);
add_mapping_pair(m, "bwrite", ps.ps_bwrite);
add_mapping_pair(m, "phread", ps.ps_phread);
add_mapping_pair(m, "phwrite", ps.ps_phwrite);
}
push_refed_mapping(m);
}
#else
#ifdef TIMES /* has times() but not getrusage() */
/*
warning times are reported in processor dependent units of time.
see man pages for 'times' to figure out how long a tick is on your system.
*/
void
f_rusage (void)
{
mapping_t *m;
struct tms t;
times(&t);
m = allocate_mapping(2);
add_mapping_pair(m, "utime", t.tms_utime * 1000 / CLK_TCK);
add_mapping_pair(m, "stime", t.tms_stime * 1000 / CLK_TCK);
push_refed_mapping(m);
}
#else
#endif /* TIMES */
#endif /* GET_PROCESS_STATS */
#endif /* RUSAGE */
#endif /* WIN32 */
#endif
#ifdef F_MALLOC_CHECK
/* this efun only useful on the NeXT (func_spec.c has #ifdef NeXT). A
non-zero return value indicates that some memory corruption has occurred
at some time prior to this calling of this efun.
*/
void
f_malloc_check (void)
{
push_number(NXMallocCheck());
}
#endif
#ifdef F_MALLOC_DEBUG
/* NeXT specific efun for setting the debugging level of NeXT's built-in
malloc.
*/
void
f_malloc_debug (void)
{
int level;
level = sp->u.number;
if (level < 0) {
int rc;
rc = malloc_debug(0);
malloc_singlethreaded();
sp->u.number = rc;
} else {
sp->u.number = malloc_debug(level);
}
}
#endif
