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freebsd/contrib/tcsh/tc.os.c
Mark Peek 45e5710bbb Import of tcsh-6.15.00
2007-03-11 22:33:41 +00:00

1587 lines
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/* $Header: /p/tcsh/cvsroot/tcsh/tc.os.c,v 3.69 2006/08/24 20:56:31 christos Exp $ */
/*
* tc.os.c: OS Dependent builtin functions
*/
/*-
* Copyright (c) 1980, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "sh.h"
RCSID("$tcsh: tc.os.c,v 3.69 2006/08/24 20:56:31 christos Exp $")
#include "tw.h"
#include "ed.h"
#include "ed.defns.h" /* for the function names */
#include "sh.decls.h"
#ifdef _UWIN
#define TIOCGPGRP TIOCGETPGRP
#define TIOCSPGRP TIOCSETPGRP
#endif
/***
*** MACH
***/
#ifdef MACH
/* dosetpath -- setpath built-in command
*
**********************************************************************
* HISTORY
* 08-May-88 Richard Draves (rpd) at Carnegie-Mellon University
* Major changes to remove artificial limits on sizes and numbers
* of paths.
*
**********************************************************************
*/
#ifdef MACH
static Char STRCPATH[] = {'C', 'P', 'A', 'T', 'H', '\0'};
static Char STRLPATH[] = {'L', 'P', 'A', 'T', 'H', '\0'};
static Char STRMPATH[] = {'M', 'P', 'A', 'T', 'H', '\0'};
# if EPATH
static Char STREPATH[] = {'E', 'P', 'A', 'T', 'H', '\0'};
# endif
#endif /* MACH */
static Char *syspaths[] = {STRKPATH, STRCPATH, STRLPATH, STRMPATH,
#if EPATH
STREPATH,
#endif
0};
#define LOCALSYSPATH "/usr/local"
/*ARGSUSED*/
void
dosetpath(Char **arglist, struct command *c)
{
extern char *getenv();
Char **pathvars, **cmdargs;
char **spaths, **cpaths, **cmds;
char *tcp;
unsigned int npaths, ncmds;
int i, sysflag;
pintr_disabled++;
cleanup_push(&pintr_disabled, disabled_cleanup);
/*
* setpath(3) uses stdio and we want 0, 1, 2 to work...
*/
if (!didfds) {
(void) dcopy(SHIN, 0);
(void) dcopy(SHOUT, 1);
(void) dcopy(SHDIAG, 2);
didfds = 1;
}
for (i = 1; arglist[i] && (arglist[i][0] != '-'); i++);
npaths = i - 1;
cmdargs = &arglist[i];
for (; arglist[i]; i++);
ncmds = i - npaths - 1;
if (npaths) {
sysflag = 0;
pathvars = &arglist[1];
}
else {
sysflag = 1;
npaths = (sizeof syspaths / sizeof *syspaths) - 1;
pathvars = syspaths;
}
/* note that npaths != 0 */
spaths = xmalloc(npaths * sizeof *spaths);
setzero(spaths, npaths * sizeof *spaths);
cpaths = xmalloc((npaths + 1) * sizeof *cpaths);
setzero(cpaths, (npaths + 1) * sizeof *cpaths);
cmds = xmalloc((ncmds + 1) * sizeof *cmds);
setzero(cmds, (ncmds + 1) * sizeof *cmds);
for (i = 0; i < npaths; i++) {
char *val = getenv(short2str(pathvars[i]));
if (val == NULL)
val = "";
spaths[i] = xmalloc((Strlen(pathvars[i]) + strlen(val) + 2) *
sizeof **spaths);
(void) strcpy(spaths[i], short2str(pathvars[i]));
(void) strcat(spaths[i], "=");
(void) strcat(spaths[i], val);
cpaths[i] = spaths[i];
}
for (i = 0; i < ncmds; i++) {
Char *val = globone(cmdargs[i], G_ERROR);/*FIXRESET*/
if (val == NULL)
goto abortpath;
cmds[i] = strsave(short2str(val));
}
if (setpath(cpaths, cmds, LOCALSYSPATH, sysflag, 1) < 0) {
abortpath:
if (spaths) {
for (i = 0; i < npaths; i++)
xfree(spaths[i]);
xfree(spaths);
}
xfree(cpaths);
if (cmds) {
for (i = 0; i < ncmds; i++)
xfree(cmds[i]);
xfree(cmds);
}
cleanup_until(&pintr_disabled);
donefds();
return;
}
for (i = 0; i < npaths; i++) {
Char *val, *name;
name = str2short(cpaths[i]);
for (val = str2short(cpaths[i]); val && *val && *val != '='; val++);
if (val && *val == '=') {
*val++ = '\0';
tsetenv(name, val);/*FIXRESET*/
if (Strcmp(name, STRKPATH) == 0) {
importpath(val);/*FIXRESET*/
if (havhash)
dohash(NULL, NULL);/*FIXRESET*/
}
*--val = '=';
}
}
cleanup_until(&pintr_disabled);
donefds();
}
#endif /* MACH */
/***
*** AIX
***/
#ifdef TCF
/* ARGSUSED */
void
dogetxvers(Char **v, struct command *c)
{
char xvers[MAXPATHLEN];
if (getxvers(xvers, MAXPATHLEN) == -1)
stderror(ERR_SYSTEM, "getxvers", strerror(errno));
xprintf("%s\n", xvers);
flush();
}
/*ARGSUSED*/
void
dosetxvers(Char **v, struct command *c)
{
char *xvers;
++v;
if (!*v || *v[0] == '\0')
xvers = "";
else
xvers = short2str(*v);
if (setxvers(xvers) == -1)
stderror(ERR_SYSTEM, "setxvers", strerror(errno));
}
#include <sf.h>
#ifdef _AIXPS2
# define XC_PDP11 0x01
# define XC_23 0x02
# define XC_Z8K 0x03
# define XC_8086 0x04
# define XC_68K 0x05
# define XC_Z80 0x06
# define XC_VAX 0x07
# define XC_16032 0x08
# define XC_286 0x09
# define XC_386 0x0a
# define XC_S370 0x0b
#else
# include <sys/x.out.h>
#endif /* _AIXPS2 */
static struct xc_cpu_t {
short xc_id;
char *xc_name;
} xcpu[] =
{
{ XC_PDP11, "pdp11" },
{ XC_23, "i370" },
{ XC_Z8K, "z8000" },
{ XC_8086, "i86" },
{ XC_68K, "mc68000" },
{ XC_Z80, "x80" },
{ XC_VAX, "vax" },
{ XC_16032, "ns16032" },
{ XC_286, "i286" },
{ XC_386, "i386" },
{ XC_S370, "xa370" },
{ 0, NULL }
};
/*
* our local hack table, stolen from x.out.h
*/
static char *
getxcode(short xcid)
{
int i;
for (i = 0; xcpu[i].xc_name != NULL; i++)
if (xcpu[i].xc_id == xcid)
return (xcpu[i].xc_name);
return (NULL);
}
static short
getxid(char *xcname)
{
int i;
for (i = 0; xcpu[i].xc_name != NULL; i++)
if (strcmp(xcpu[i].xc_name, xcname) == 0)
return (xcpu[i].xc_id);
return ((short) -1);
}
/*ARGSUSED*/
void
dogetspath(Char **v, struct command *c)
{
int i, j;
sitepath_t p[MAXSITE];
struct sf *st;
static char *local = "LOCAL ";
if ((j = getspath(p, MAXSITE)) == -1)
stderror(ERR_SYSTEM, "getspath", strerror(errno));
for (i = 0; i < j && (p[i] & SPATH_CPU) != NOSITE; i++) {
if (p[i] & SPATH_CPU) {
if ((p[i] & SPATH_MASK) == NULLSITE)
xprintf(local);
else if ((st = sfxcode((short) (p[i] & SPATH_MASK))) != NULL)
xprintf("%s ", st->sf_ctype);
else {
char *xc = getxcode(p[i] & SPATH_MASK);
if (xc != NULL)
xprintf("%s ", xc);
else
xprintf("*cpu %d* ", (int) (p[i] & SPATH_MASK));
/*
* BUG in the aix code... needs that cause if
* sfxcode fails once it fails for ever
*/
endsf();
}
}
else {
if (p[i] == NULLSITE)
xprintf(local);
else if ((st = sfnum(p[i])) != NULL)
xprintf("%s ", st->sf_sname);
else
xprintf("*site %d* ", (int) (p[i] & SPATH_MASK));
}
}
xputchar('\n');
flush();
}
/*ARGSUSED*/
void
dosetspath(Char **v, struct command *c)
{
int i;
short j;
char *s;
sitepath_t p[MAXSITE];
struct sf *st;
/*
* sfname() on AIX G9.9 at least, mallocs too pointers p, q
* then does the equivalent of while (*p++ == *q++) continue;
* and then tries to free(p,q) them! Congrats to the wizard who
* wrote that one. I bet he tested it really well too.
* Sooo, we set dont_free :-)
*/
dont_free = 1;
for (i = 0, v++; *v && *v[0] != '\0'; v++, i++) {
s = short2str(*v);
if (isdigit(*s))
p[i] = atoi(s);
else if (strcmp(s, "LOCAL") == 0)
p[i] = NULLSITE;
else if ((st = sfctype(s)) != NULL)
p[i] = SPATH_CPU | st->sf_ccode;
else if ((j = getxid(s)) != -1)
p[i] = SPATH_CPU | j;
else if ((st = sfname(s)) != NULL)
p[i] = st->sf_id;
else {
setname(s);
stderror(ERR_NAME | ERR_STRING, CGETS(23, 1, "Bad cpu/site name"));
}
if (i == MAXSITE - 1)
stderror(ERR_NAME | ERR_STRING, CGETS(23, 2, "Site path too long"));
}
if (setspath(p, i) == -1)
stderror(ERR_SYSTEM, "setspath", strerror(errno));
dont_free = 0;
}
/* sitename():
* Return the site name where the process is running
*/
char *
sitename(pid_t pid)
{
siteno_t ss;
struct sf *st;
if ((ss = site(pid)) == -1 || (st = sfnum(ss)) == NULL)
return CGETS(23, 3, "unknown");
else
return st->sf_sname;
}
static int
migratepid(pit_t pid, siteno_t new_site)
{
struct sf *st;
int need_local;
need_local = (pid == 0) || (pid == getpid());
if (kill3(pid, SIGMIGRATE, new_site) < 0) {
xprintf("%d: %s\n", pid, strerror(errno));
return (-1);
}
if (need_local) {
if ((new_site = site(0)) == -1) {
xprintf(CGETS(23, 4, "site: %s\n"), strerror(errno));
return (-1);
}
if ((st = sfnum(new_site)) == NULL) {
xprintf(CGETS(23, 5, "%d: Site not found\n"), new_site);
return (-1);
}
if (setlocal(st->sf_local, strlen(st->sf_local)) == -1) {
xprintf(CGETS(23, 6, "setlocal: %s: %s\n"),
st->sf_local, strerror(errno));
return (-1);
}
}
return (0);
}
/*ARGSUSED*/
void
domigrate(Char **v, struct command *c)
{
struct sf *st;
char *s;
Char *cp;
struct process *pp;
int err1 = 0;
int pid = 0;
siteno_t new_site = 0;
pchild_disabled++;
cleanup_push(&pchild_disabled, disabled_cleanup);
if (setintr) {
pintr_disabled++;
cleanup_push(&pintr_disabled, disabled_cleanup);
}
++v;
if (*v[0] == '-') {
/*
* Do the -site.
*/
s = short2str(&v[0][1]);
/*
* see comment in setspath()
*/
dont_free = 1;
if ((st = sfname(s)) == NULL) {
dont_free = 0;
setname(s);
stderror(ERR_NAME | ERR_STRING, CGETS(23, 7, "Site not found"));
}
dont_free = 0;
new_site = st->sf_id;
++v;
}
if (!*v || *v[0] == '\0') {
if (migratepid(0, new_site) == -1)
err1++;
}
else {
Char **globbed;
v = glob_all_or_error(v);
globbed = v;
cleanup_push(globbed, blk_cleanup);
while (v && (cp = *v)) {
if (*cp == '%') {
pp = pfind(cp);
if (kill3(- pp->p_jobid, SIGMIGRATE, new_site) < 0) {
xprintf("%S: %s\n", cp, strerror(errno));
err1++;
}
}
else if (!(Isdigit(*cp) || *cp == '-'))
stderror(ERR_NAME | ERR_JOBARGS);
else {
pid = atoi(short2str(cp));
if (migratepid(pid, new_site) == -1)
err1++;
}
v++;
}
cleanup_until(globbed);
}
done:
cleanup_until(&pchild_disabled);
if (err1)
stderror(ERR_SILENT);
}
#endif /* TCF */
/***
*** CRAY ddmode <velo@sesun3.epfl.ch> (Martin Ouwehand EPFL-SIC/SE)
***/
#if defined(_CRAY) && !defined(_CRAYMPP)
void
dodmmode(Char **v, struct command *c)
{
Char *cp = v[1];
USE(c);
if ( !cp ) {
int mode;
mode = dmmode(0);
dmmode(mode);
xprintf("%d\n",mode);
}
else {
if (cp[1] != '\0')
stderror(ERR_NAME | ERR_STRING,
CGETS(23, 30, "Too many arguments"));
else
switch(*cp) {
case '0':
dmmode(0);
break;
case '1':
dmmode(1);
break;
default:
stderror(ERR_NAME | ERR_STRING,
CGETS(23, 31, "Invalid argument"));
}
}
}
#endif /* _CRAY && !_CRAYMPP */
/***
*** CONVEX Warps.
***/
#ifdef WARP
/*
* handle the funky warping of symlinks
*/
#include <warpdb.h>
#include <sys/warp.h>
static jmp_buf sigsys_buf;
static void
catch_sigsys(void)
{
sigset_t set;
sigemptyset(&set, SIGSYS);
(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
longjmp(sigsys_buf, 1);
}
/*ARGSUSED*/
void
dowarp(Char **v, struct command *c)
{
int warp, oldwarp;
struct warpent *we;
volatile struct sigaction old_sigsys_handler;
char *newwarp;
if (setjmp(sigsys_buf)) {
sigaction(SIGSYS, &old_sigsys_handler, NULL);
stderror(ERR_NAME | ERR_STRING,
CGETS(23, 8, "You're trapped in a universe you never made"));
return;
}
sigaction(SIGSYS, NULL, &old_sigsys_handler);
signal(SIGSYS, catch_sigsys);
warp = getwarp();
v++;
if (*v == 0) { /* display warp value */
if (warp < 0)
stderror(ERR_NAME | ERR_STRING, CGETS(23, 9, "Getwarp failed"));
we = getwarpbyvalue(warp);
if (we)
printf("%s\n", we->w_name);
else
printf("%d\n", warp);
}
else { /* set warp value */
oldwarp = warp;
newwarp = short2str(*v);
if (Isdigit(*v[0]))
warp = atoi(newwarp);
else {
we = getwarpbyname(newwarp);
if (we)
warp = we->w_value;
else
warp = -1;
}
if ((warp < 0) || (warp >= WARP_MAXLINK))
stderror(ERR_NAME | ERR_STRING, CGETS(23, 10, "Invalid warp"));
if ((setwarp(warp) < 0) || (getwarp() != warp)) {
(void) setwarp(oldwarp);
stderror(ERR_NAME | ERR_STRING, CGETS(23, 11, "Setwarp failed"));
}
}
sigaction(SIGSYS, &old_sigsys_handler, NULL);
}
#endif /* WARP */
/***
*** Masscomp or HCX
***/
/* Added, DAS DEC-90. */
#if defined(masscomp) || defined(_CX_UX)
static void
setuniverse_cleanup(void *xbuf)
{
char *buf;
buf = xbuf;
setuniverse(buf);
}
/*ARGSUSED*/
void
douniverse(Char **v, struct command *c)
{
Char *cp = v[1];
Char *cp2; /* dunno how many elements v comes in with */
char ubuf[100];
if (cp == 0) {
(void) getuniverse(ubuf);
xprintf("%s\n", ubuf);
}
else {
cp2 = v[2];
if (cp2 == 0) {
if (*cp == '\0' || setuniverse(short2str(cp)) != 0)
stderror(ERR_NAME | ERR_STRING, CGETS(23, 12, "Illegal universe"));
}
else {
(void) getuniverse(ubuf);
if (*cp == '\0' || setuniverse(short2str(cp)) != 0)
stderror(ERR_NAME | ERR_STRING, CGETS(23, 12, "Illegal universe"));
cleanup_push(ubuf, setuniverse_cleanup);
if (setintr) {
pintr_disabled++;
cleanup_push(&pintr_disabled, disabled_cleanup);
}
lshift(v, 2);
if (setintr)
cleanup_until(&pintr_disabled);
reexecute(c);
cleanup_until(ubuf);
}
}
}
#endif /* masscomp || _CX_UX */
/***
*** BS2000/OSD POSIX (Fujitsu Siemens Computers)
***/
#if defined(_OSD_POSIX)
static int
bs2upcase(char *str)
{
enum { outside = ' ', singlequote='\'', doublequote='"'} string = outside;
char *white;
for (white = str + strlen(str) - 1; isspace(*white) && white > str; --white)
*white = '\0';
for (; *str != '\0'; ++str)
{
if (string == outside)
{
*str = toupper (*str);
}
if (*str == '\'')
{
if (string == outside)
string = singlequote;
else if (string != doublequote)
string = outside;
}
else if (*str == '"')
{
if (string == outside)
string = doublequote;
else if (string != singlequote)
string = outside;
}
}
if (string != outside)
{
stderror(ERR_NAME | ERR_UNMATCHED, (Char) string);
return 1;
}
return 0;
}
static int
bs2cmdlist(char *str)
{
char *str_beg = NULL;
int ret = 0;
enum { outside = ' ', singlequote='\'', doublequote='"'} string = outside;
while (*str != '\0')
{
while (isspace(*str))
++str;
if (*str == '\0')
break;
str_beg = str;
for (; *str != '\0'; ++str)
{
if (string == outside && *str == ';') /* End of command */
{
*str++ = '\0';
break; /* continue with next command */
}
if (*str == '\'')
{
if (string == outside)
string = singlequote;
else if (string != doublequote)
string = outside;
}
else if (*str == '"')
{
if (string == outside)
string = doublequote;
else if (string != singlequote)
string = outside;
}
}
if (strlen(str_beg) != 0)
{
ret = bs2system(str_beg);
flush();
if (ret != 0 /*&& !option.err_ignore*/)
break; /* do not continue after errors */
}
}
if (string != outside)
{
stderror(ERR_NAME | ERR_UNMATCHED, (Char) string);
return -1;
}
return ret;
}
/*ARGSUSED*/
void
dobs2cmd(Char **v, struct command *c)
{
Char *cp, **globbed;
int i = 0, len = 0;
char *cmd = NULL;
int pvec[2];
struct command faket;
Char *fakecom[2];
char tibuf[BUFSIZE];
int icnt, old_pintr_disabled;
static const Char STRbs2cmd[] = { 'b','s','2','c','m','d','\0' };
v++;
if (setintr)
pintr_push_enable(&old_pintr_disabled);
v = glob_all_or_error(v);
if (setintr)
cleanup_until(&old_pintr_disabled);
globbed = v;
cleanup_push(globbed, blk_cleanup);
/* First round: count the string lengths */
for (i=0; v[i]; ++i) {
len += Strlen(v[i]) + (v[i+1] != NULL);
}
cmd = xmalloc(len+1); /* 1 for the final '\0' *//* FIXME: memory leak? */
/* 2nd round: fill cmd buffer */
i = 0;
while ((cp = *v++) != 0) {
int c;
while (c = *cp++)
cmd[i++] = (char)c;
if (*v)
cmd[i++] = ' ';
}
cmd[i] = '\0';
/* Make upper case */
bs2upcase(cmd);
faket.t_dtyp = NODE_COMMAND;
faket.t_dflg = F_BACKQ|F_STDERR;
faket.t_dlef = 0;
faket.t_drit = 0;
faket.t_dspr = 0;
faket.t_dcom = fakecom;
fakecom[0] = (Char *)STRbs2cmd;
fakecom[1] = 0;
mypipe(pvec);
cleanup_push(&pvec[0], open_cleanup);
cleanup_push(&pvec[1], open_cleanup);
if (pfork(&faket, -1) == 0) {
sigset_t set;
/* child */
xclose(pvec[0]);
(void) dmove(pvec[1], 1);
(void) dmove(SHDIAG, 2);
initdesc();
sigemptyset(&set);
sigaddset(&set, SIGINT);
(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
#ifdef SIGTSTP
signal(SIGTSTP, SIG_IGN);
#endif
#ifdef SIGTTIN
signal(SIGTTIN, SIG_IGN);
#endif
#ifdef SIGTTOU
signal(SIGTTOU, SIG_IGN);
#endif
xexit(bs2cmdlist(cmd));
}
cleanup_until(&pvec[1]);
for(;;) {
int old_pintr_disabled;
if (setintr)
pintr_push_enable(&old_pintr_disabled);
icnt = xread(pvec[0], tibuf, sizeof(tibuf));
if (setintr)
cleanup_until(&old_pintr_disabled);
if (icnt <= 0)
break;
for (i = 0; i < icnt; i++)
xputchar((unsigned char) tibuf[i]);
}
cleanup_until(&pvec[0]);
pwait();
flush();
cleanup_until(globbed);
}
#endif /* _OSD_POSIX */
#if defined(_CX_UX)
static void
setuniverse_cleanup(void *xbuf)
{
char *buf;
buf = xbuf;
setuniverse(buf);
}
/*ARGSUSED*/
void
doatt(Char **v, struct command *c)
{
Char *cp = v[1];
char ubuf[100];
if (cp == 0)
(void) setuniverse("att");
else {
(void) getuniverse(ubuf);
(void) setuniverse("att");
cleanup_push(ubuf, setuniverse_cleanup);
if (setintr) {
pintr_disabled++;
cleanup_push(&pintr_disabled, disabled_cleanup);
}
lshift(v, 1);
if (setintr)
cleanup_until(&pintr_disabled);
reexecute(c);
cleanup_until(ubuf);
}
}
/*ARGSUSED*/
void
doucb(Char **v, struct command *c)
{
Char *cp = v[1];
char ubuf[100];
if (cp == 0)
(void) setuniverse("ucb");
else {
(void) getuniverse(ubuf);
(void) setuniverse("ucb");
cleanup_push(ubuf, setuniverse_cleanup);
if (setintr) {
pintr_disabled++;
cleanup_push(&pintr_disabled, disabled_cleanup);
}
lshift(v, 1);
if (setintr)
cleanup_until(&pintr_disabled);
reexecute(c);
cleanup_until(ubuf);
}
}
#endif /* _CX_UX */
#ifdef _SEQUENT_
/*
* Compute the difference in process stats.
*/
void
pr_stat_sub(struct process_stats *p2, struct process_stats *p1,
struct process_stats *pr)
{
pr->ps_utime.tv_sec = p2->ps_utime.tv_sec - p1->ps_utime.tv_sec;
pr->ps_utime.tv_usec = p2->ps_utime.tv_usec - p1->ps_utime.tv_usec;
if (pr->ps_utime.tv_usec < 0) {
pr->ps_utime.tv_sec -= 1;
pr->ps_utime.tv_usec += 1000000;
}
pr->ps_stime.tv_sec = p2->ps_stime.tv_sec - p1->ps_stime.tv_sec;
pr->ps_stime.tv_usec = p2->ps_stime.tv_usec - p1->ps_stime.tv_usec;
if (pr->ps_stime.tv_usec < 0) {
pr->ps_stime.tv_sec -= 1;
pr->ps_stime.tv_usec += 1000000;
}
pr->ps_maxrss = p2->ps_maxrss - p1->ps_maxrss;
pr->ps_pagein = p2->ps_pagein - p1->ps_pagein;
pr->ps_reclaim = p2->ps_reclaim - p1->ps_reclaim;
pr->ps_zerofill = p2->ps_zerofill - p1->ps_zerofill;
pr->ps_pffincr = p2->ps_pffincr - p1->ps_pffincr;
pr->ps_pffdecr = p2->ps_pffdecr - p1->ps_pffdecr;
pr->ps_swap = p2->ps_swap - p1->ps_swap;
pr->ps_syscall = p2->ps_syscall - p1->ps_syscall;
pr->ps_volcsw = p2->ps_volcsw - p1->ps_volcsw;
pr->ps_involcsw = p2->ps_involcsw - p1->ps_involcsw;
pr->ps_signal = p2->ps_signal - p1->ps_signal;
pr->ps_lread = p2->ps_lread - p1->ps_lread;
pr->ps_lwrite = p2->ps_lwrite - p1->ps_lwrite;
pr->ps_bread = p2->ps_bread - p1->ps_bread;
pr->ps_bwrite = p2->ps_bwrite - p1->ps_bwrite;
pr->ps_phread = p2->ps_phread - p1->ps_phread;
pr->ps_phwrite = p2->ps_phwrite - p1->ps_phwrite;
}
#endif /* _SEQUENT_ */
#ifndef HAVE_MEMSET
/* This is a replacement for a missing memset function */
void *xmemset(void *loc, int value, size_t len)
{
char *ptr = loc;
while (len--)
*ptr++ = value;
return loc;
}
#endif /* !HAVE_MEMSET */
#ifndef HAVE_MEMMOVE
/* memmove():
* This is the ANSI form of bcopy() with the arguments backwards...
* Unlike memcpy(), it handles overlaps between source and
* destination memory
*/
void *
xmemmove(void *vdst, const void *vsrc, size_t len)
{
const char *src = vsrc;
char *dst = vdst;
if (src == dst)
return vdst;
if (src > dst) {
while (len--)
*dst++ = *src++;
}
else {
src += len;
dst += len;
while (len--)
*--dst = *--src;
}
return vdst;
}
#endif /* HAVE_MEMMOVE */
#ifndef WINNT_NATIVE
#ifdef NEEDtcgetpgrp
pid_t
xtcgetpgrp(int fd)
{
int pgrp;
/* ioctl will handle setting errno correctly. */
if (ioctl(fd, TIOCGPGRP, (ioctl_t) & pgrp) < 0)
return (-1);
return (pgrp);
}
/*
* XXX: tcsetpgrp is not a macro any more cause on some systems,
* pid_t is a short, but the ioctl() takes a pointer to int (pyr)
* Thanks to Simon Day (simon@pharaoh.cyborg.bt.co.uk) for pointing
* this out.
*/
int
xtcsetpgrp(int fd, int pgrp)
{
return ioctl(fd, TIOCSPGRP, (ioctl_t) &pgrp);
}
#endif /* NEEDtcgetpgrp */
#endif /* WINNT_NATIVE */
#ifdef YPBUGS
void
fix_yp_bugs(void)
{
char *mydomain;
extern int yp_get_default_domain (char **);
/*
* PWP: The previous version assumed that yp domain was the same as the
* internet name domain. This isn't allways true. (Thanks to Mat Landau
* <mlandau@bbn.com> for the original version of this.)
*/
if (yp_get_default_domain(&mydomain) == 0) { /* if we got a name */
extern void yp_unbind (const char *);
yp_unbind(mydomain);
}
}
#endif /* YPBUGS */
#ifdef STRCOLLBUG
void
fix_strcoll_bug(void)
{
#if defined(NLS) && defined(HAVE_STRCOLL)
/*
* SunOS4 checks the file descriptor from openlocale() for <= 0
* instead of == -1. Someone should tell sun that file descriptor 0
* is valid! Our portable hack: open one so we call it with 0 used...
* We have to call this routine every time the locale changes...
*
* Of course it also tries to free the constant locale "C" it initially
* had allocated, with the sequence
* > setenv LANG "fr"
* > ls^D
* > unsetenv LANG
* But we are smarter than that and just print a warning message.
*/
int fd = -1;
static char *root = "/";
if (!didfds)
fd = xopen(root, O_RDONLY|O_LARGEFILE);
(void) strcoll(root, root);
if (fd != -1)
xclose(fd);
#endif
}
#endif /* STRCOLLBUG */
#ifdef OREO
#include <compat.h>
#endif /* OREO */
void
osinit(void)
{
#ifdef OREO
set42sig();
setcompat(getcompat() & ~COMPAT_EXEC);
signal(SIGIO, SIG_IGN); /* ignore SIGIO */
#endif /* OREO */
#ifdef aiws
{
struct sigstack inst;
inst.ss_sp = xmalloc(4192) + 4192;
inst.ss_onstack = 0;
sigstack(&inst, NULL);
}
#endif /* aiws */
#ifdef apollo
(void) isapad();
#endif
#ifdef _SX
/*
* kill(SIGCONT) problems, don't know what this syscall does
* [schott@rzg.mpg.de]
*/
syscall(151, getpid(), getpid());
#endif /* _SX */
}
#ifndef HAVE_STRERROR
extern int sys_nerr;
extern char *sys_errlist[];
char *
xstrerror(int i)
{
if (i >= 0 && i < sys_nerr) {
return sys_errlist[i];
} else {
static char *errbuf; /* = NULL; */
xfree(errbuf);
errbuf = xasprintf(CGETS(23, 13, "Unknown Error: %d"), i);
return errbuf;
}
}
#endif /* !HAVE_STRERROR */
#ifndef HAVE_GETHOSTNAME
# if !defined(_MINIX) && !defined(__EMX__) && !defined(WINNT_NATIVE)
# include <sys/utsname.h>
# endif /* !_MINIX && !__EMX__ && !WINNT_NATIVE */
int
xgethostname(char *name, int namlen)
{
# if !defined(_MINIX) && !defined(__EMX__) && !defined(WINNT_NATIVE)
int i, retval;
struct utsname uts;
retval = uname(&uts);
# ifdef DEBUG
xprintf(CGETS(23, 14, "sysname: %s\n"), uts.sysname);
xprintf(CGETS(23, 15, "nodename: %s\n"), uts.nodename);
xprintf(CGETS(23, 16, "release: %s\n"), uts.release);
xprintf(CGETS(23, 17, "version: %s\n"), uts.version);
xprintf(CGETS(23, 18, "machine: %s\n"), uts.machine);
# endif /* DEBUG */
i = strlen(uts.nodename) + 1;
(void) strncpy(name, uts.nodename, i < namlen ? i : namlen);
return retval;
# else /* !_MINIX && !__EMX__ */
if (namlen > 0) {
# ifdef __EMX__
(void) strncpy(name, "OS/2", namlen);
# else /* _MINIX */
(void) strncpy(name, "minix", namlen);
# endif /* __EMX__ */
name[namlen-1] = '\0';
}
return(0);
#endif /* _MINIX && !__EMX__ */
} /* end xgethostname */
#endif /* !HAVE_GETHOSTNAME */
#ifndef HAVE_NICE
# if defined(_MINIX) && defined(NICE)
# undef _POSIX_SOURCE /* redefined in <lib.h> */
# undef _MINIX /* redefined in <lib.h> */
# undef HZ /* redefined in <minix/const.h> */
# include <lib.h>
# endif /* _MINIX && NICE */
int
xnice(int incr)
{
#if defined(_MINIX) && defined(NICE)
return callm1(MM, NICE, incr, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
#else
return /* incr ? 0 : */ 0;
#endif /* _MINIX && NICE */
} /* end xnice */
#endif /* !HAVE_NICE */
#ifndef HAVE_GETCWD
static char *strnrcpy (char *, char *, size_t);
/* xgetcwd():
* Return the pathname of the current directory, or return
* an error message in pathname.
*/
# ifdef hp9000s500
/*
* From: Bernd Mohr <mohr@faui77.informatik.uni-erlangen.de>
* I also ported the tcsh to the HP9000 Series 500. This computer
* is a little bit different than the other HP 9000 computer. It has
* a HP Chip instead of a Motorola CPU and it is no "real" UNIX. It runs
* HP-UX which is emulated in top of a HP operating system. So, the last
* supported version of HP-UX is 5.2 on the HP9000s500. This has two
* consequences: it supports no job control and it has a filesystem
* without "." and ".." !!!
*/
char *
xgetcwd(char *pathname, size_t pathlen)
{
char pathbuf[MAXPATHLEN]; /* temporary pathname buffer */
char *pnptr = &pathbuf[(sizeof pathbuf)-1]; /* pathname pointer */
dev_t rdev; /* root device number */
DIR *dirp = NULL; /* directory stream */
ino_t rino; /* root inode number */
off_t rsize; /* root size */
struct direct *dir; /* directory entry struct */
struct stat d, dd; /* file status struct */
int serrno;
*pnptr = '\0';
(void) stat("/.", &d);
rdev = d.st_dev;
rino = d.st_ino;
rsize = d.st_size;
for (;;) {
if (stat(".", &d) == -1) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 24,
"getcwd: Cannot stat \".\" (%s)"), strerror(errno));
goto fail;
}
if (d.st_ino == rino && d.st_dev == rdev && d.st_size == rsize)
break; /* reached root directory */
if ((dirp = opendir("..")) == NULL) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 19,
"getcwd: Cannot open \"..\" (%s)"), strerror(errno));
goto fail;
}
if (chdir("..") == -1) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 20,
"getcwd: Cannot chdir to \"..\" (%s)"), strerror(errno));
goto fail;
}
do {
if ((dir = readdir(dirp)) == NULL) {
(void) xsnprintf(pathname, pathlen,
CGETS(23, 21, "getcwd: Read error in \"..\" (%s)"),
strerror(errno));
goto fail;
}
if (stat(dir->d_name, &dd) == -1) {
(void) xsnprintf(pathname, pathlen,
CGETS(23, 25, "getcwd: Cannot stat directory \"%s\" (%s)"),
dir->d_name, strerror(errno));
goto fail;
}
} while (dd.st_ino != d.st_ino ||
dd.st_dev != d.st_dev ||
dd.st_size != d.st_size);
closedir(dirp);
dirp = NULL;
pnptr = strnrcpy(dirp->d_name, pnptr, pnptr - pathbuf);
pnptr = strnrcpy("/", pnptr, pnptr - pathbuf);
}
if (*pnptr == '\0') /* current dir == root dir */
(void) strncpy(pathname, "/", pathlen);
else {
(void) strncpy(pathname, pnptr, pathlen);
pathname[pathlen - 1] = '\0';
if (chdir(pnptr) == -1) {
(void) xsnprintf(pathname, MAXPATHLEN, CGETS(23, 22,
"getcwd: Cannot change back to \".\" (%s)"),
strerror(errno));
return NULL;
}
}
return pathname;
fail:
serrno = errno;
(void) chdir(strnrcpy(".", pnptr, pnptr - pathbuf));
errno = serrno;
return NULL;
}
# else /* ! hp9000s500 */
char *
xgetcwd(char *pathname, size_t pathlen)
{
DIR *dp;
struct dirent *d;
struct stat st_root, st_cur, st_next, st_dotdot;
char pathbuf[MAXPATHLEN], nextpathbuf[MAXPATHLEN * 2];
char *pathptr, *nextpathptr, *cur_name_add;
int save_errno = 0;
/* find the inode of root */
if (stat("/", &st_root) == -1) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 23,
"getcwd: Cannot stat \"/\" (%s)"),
strerror(errno));
return NULL;
}
pathbuf[MAXPATHLEN - 1] = '\0';
pathptr = &pathbuf[MAXPATHLEN - 1];
nextpathbuf[MAXPATHLEN - 1] = '\0';
cur_name_add = nextpathptr = &nextpathbuf[MAXPATHLEN - 1];
/* find the inode of the current directory */
if (lstat(".", &st_cur) == -1) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 24,
"getcwd: Cannot stat \".\" (%s)"),
strerror(errno));
return NULL;
}
nextpathptr = strnrcpy(nextpathptr, "../", nextpathptr - nextpathbuf);
/* Descend to root */
for (;;) {
/* look if we found root yet */
if (st_cur.st_ino == st_root.st_ino &&
DEV_DEV_COMPARE(st_cur.st_dev, st_root.st_dev)) {
(void) strncpy(pathname, *pathptr != '/' ? "/" : pathptr, pathlen);
pathname[pathlen - 1] = '\0';
return pathname;
}
/* open the parent directory */
if (stat(nextpathptr, &st_dotdot) == -1) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 25,
"getcwd: Cannot stat directory \"%s\" (%s)"),
nextpathptr, strerror(errno));
return NULL;
}
if ((dp = opendir(nextpathptr)) == NULL) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 26,
"getcwd: Cannot open directory \"%s\" (%s)"),
nextpathptr, strerror(errno));
return NULL;
}
/* look in the parent for the entry with the same inode */
if (DEV_DEV_COMPARE(st_dotdot.st_dev, st_cur.st_dev)) {
/* Parent has same device. No need to stat every member */
for (d = readdir(dp); d != NULL; d = readdir(dp)) {
#ifdef __clipper__
if (((unsigned long)d->d_ino & 0xffff) == st_cur.st_ino)
break;
#else
if (d->d_ino == st_cur.st_ino)
break;
#endif
}
}
else {
/*
* Parent has a different device. This is a mount point so we
* need to stat every member
*/
for (d = readdir(dp); d != NULL; d = readdir(dp)) {
if (ISDOT(d->d_name) || ISDOTDOT(d->d_name))
continue;
(void)strncpy(cur_name_add, d->d_name,
(size_t) (&nextpathbuf[sizeof(nextpathbuf) - 1] - cur_name_add));
if (lstat(nextpathptr, &st_next) == -1) {
/*
* We might not be able to stat() some path components
* if we are using afs, but this is not an error as
* long as we find the one we need; we also save the
* first error to report it if we don't finally succeed.
*/
if (save_errno == 0)
save_errno = errno;
continue;
}
/* check if we found it yet */
if (st_next.st_ino == st_cur.st_ino &&
DEV_DEV_COMPARE(st_next.st_dev, st_cur.st_dev))
break;
}
}
if (d == NULL) {
(void) xsnprintf(pathname, pathlen, CGETS(23, 27,
"getcwd: Cannot find \".\" in \"..\" (%s)"),
strerror(save_errno ? save_errno : ENOENT));
closedir(dp);
return NULL;
}
else
save_errno = 0;
st_cur = st_dotdot;
pathptr = strnrcpy(pathptr, d->d_name, pathptr - pathbuf);
pathptr = strnrcpy(pathptr, "/", pathptr - pathbuf);
nextpathptr = strnrcpy(nextpathptr, "../", nextpathptr - nextpathbuf);
*cur_name_add = '\0';
closedir(dp);
}
} /* end getcwd */
# endif /* hp9000s500 */
/* strnrcpy():
* Like strncpy, going backwards and returning the new pointer
*/
static char *
strnrcpy(char *ptr, char *str, size_t siz)
{
int len = strlen(str);
if (siz == 0)
return ptr;
while (len && siz--)
*--ptr = str[--len];
return (ptr);
} /* end strnrcpy */
#endif /* !HAVE_GETCWD */
#ifdef apollo
/***
*** Domain/OS
***/
#include <apollo/base.h>
#include <apollo/loader.h>
#include <apollo/error.h>
static char *
apperr(status_$t *st)
{
static char *buf; /* = NULL */
short e_subl, e_modl, e_codel;
error_$string_t e_sub, e_mod, e_code;
error_$get_text(*st, e_sub, &e_subl, e_mod, &e_modl, e_code, &e_codel);
e_sub[e_subl] = '\0';
e_code[e_codel] = '\0';
e_mod[e_modl] = '\0';
xfree(buf);
buf = xasprintf("%s (%s/%s)", e_code, e_sub, e_mod);
return(buf);
}
static int
llib(Char *s)
{
short len = Strlen(s);
status_$t st;
char *t;
loader_$inlib(t = short2str(s), len, &st);
if (st.all != status_$ok)
stderror(ERR_SYSTEM, t, apperr(&st));
}
/*ARGSUSED*/
void
doinlib(Char **v, struct command *c)
{
Char **globbed;
setname(short2str(*v++));
v = glob_all_or_error(v);
globbed = v;
cleanup_push(globbed, blk_cleanup);
while (v && *v)
llib(*v++);
cleanup_until(globbed);
}
int
getv(Char *v)
{
if (eq(v, STRbsd43))
return(1);
else if (eq(v, STRsys53))
return(0);
else
stderror(ERR_NAME | ERR_SYSTEM, short2str(v),
CGETS(23, 28, "Invalid system type"));
/*NOTREACHED*/
return(0);
}
/*ARGSUSED*/
void
dover(Char **v, struct command *c)
{
Char *p;
setname(short2str(*v++));
if (!*v) {
if (!(p = tgetenv(STRSYSTYPE)))
stderror(ERR_NAME | ERR_STRING,
CGETS(23, 29, "System type is not set"));
xprintf("%S\n", p);
}
else {
tsetenv(STRSYSTYPE, getv(*v) ? STRbsd43 : STRsys53);
dohash(NULL, NULL);
}
}
/*
* Many thanks to rees@citi.umich.edu (Jim Rees) and
* mathys@ssdt-tempe.sps.mot.com (Yves Mathys)
* For figuring out how to do this... I could have never done
* it without their help.
*/
typedef short enum {
name_$wdir_type,
name_$ndir_type,
name_$node_dir_type,
} name_$dir_type_t;
/*ARGSUSED*/
void
dorootnode(Char **v, struct command *c)
{
name_$dir_type_t dirtype = name_$node_dir_type;
uid_$t uid;
status_$t st;
char *name;
short namelen;
setname(short2str(*v++));
name = short2str(*v);
namelen = strlen(name);
name_$resolve(name, &namelen, &uid, &st);
if (st.all != status_$ok)
stderror(ERR_SYSTEM, name, apperr(&st));
namelen = 0;
name_$set_diru(&uid, "", &namelen, &dirtype, &st);
if (st.all != status_$ok)
stderror(ERR_SYSTEM, name, apperr(&st));
dohash(NULL, NULL);
}
int
isapad(void)
{
static int res = -1;
static status_$t st;
if (res == -1) {
int strm;
if (isatty(0))
strm = 0;
if (isatty(1))
strm = 1;
if (isatty(2))
strm = 2;
else {
res = 0;
st.all = status_$ok;
return(res);
}
res = stream_$isavt(&strm, &st);
res = res ? 1 : 0;
}
else {
if (st.all != status_$ok)
stderror(ERR_SYSTEM, "stream_$isavt", apperr(&st));
}
return(res);
}
#endif
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