int
main (
int argc,
char **argv
)
{
pwr_tStatus sts;
pwr_tTime time;
pwr_tTime now;
int sec,nsec;
#ifdef OS_VMS
sts = lib$get_ef(&timerFlag);
if (EVEN(sts)) exit(sts);
#endif
for (sec=0,nsec=10000000;;) {
nowTime(&now);
#if 0
now.tv_sec = sec;
now.tv_nsec = nsec;
#endif
printf("%d:%d\n", now.tv_sec, now.tv_nsec);
waitTime(&now);
nsec += 10000000;
sec += nsec / 1000000000;
nsec %= 1000000000;
}
}
int sys_get_char ( void ) {
/* gets one character with noecho */
int stat, buf_size;
unsigned int func = IO$M_NOECHO | IO$_READVBLK;
IOSB_TYPE iosb;
char buf[4];
if ( tt_init ) {
tt_chan = 0;
stat = sys$assign( &tt_dev, &tt_chan, 0, 0, 0 );
if ( stat != SS$_NORMAL ) return 0;
tt_init = 0;
stat = lib$get_ef( &tt_ef );
if ( stat != SS$_NORMAL ) tt_ef = 0;
}
buf_size = 1;
stat = sys$qiow( tt_ef, tt_chan, func, &iosb, 0, 0, &buf,
buf_size, 0, 0, 0, 0 );
if ( stat != SS$_NORMAL )
return 0;
else
return (int) buf[0];
}
int sys_num_chars ( void ) {
/* gets number of chars in typeahead buffer */
typedef struct {
short num;
char first;
char res_c;
long res_l;
} TT_TABUF_TYPE;
int stat, buf_size;
unsigned int func = IO$_SENSEMODE | IO$M_TYPEAHDCNT;
IOSB_TYPE iosb;
TT_TABUF_TYPE buf;
if ( tt_init ) {
tt_chan = 0;
stat = sys$assign( &tt_dev, &tt_chan, 0, 0, 0 );
if ( stat != SS$_NORMAL ) return 0;
tt_init = 0;
stat = lib$get_ef( &tt_ef );
if ( stat != SS$_NORMAL ) tt_ef = 0;
}
buf_size = 1;
stat = sys$qiow( tt_ef, tt_chan, func, &iosb, 0, 0, &buf,
sizeof(buf), 0, 0, 0, 0 );
if ( stat != SS$_NORMAL )
return 0;
else
return (int) buf.num;
}
/*
**++
** ROUTINE: netlib___alloc_ctx
**
** FUNCTIONAL DESCRIPTION:
**
** Allocates some memory.
**
** RETURNS: cond_value
**
** PROTOTYPE:
**
** netlib___alloc_ctx(unsigned int size, void *ptr)
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: None.
**
** SIDE EFFECTS: None.
**
**--
*/
unsigned int netlib___alloc_ctx (struct CTX **ctxp, unsigned int specsize) {
struct CTX *ctx;
unsigned int status, fullsize, aststat;
BLOCK_ASTS(aststat);
if (netlib_synch_efn == 0xffffffff) {
status = lib$get_ef(&netlib_synch_efn);
if (!OK(status)) {
UNBLOCK_ASTS(aststat);
return status;
}
}
if (netlib_asynch_efn == 0xffffffff) {
status = lib$get_ef(&netlib_asynch_efn);
if (!OK(status)) {
UNBLOCK_ASTS(aststat);
return status;
}
}
fullsize = specsize + CTX_S_CTXDEF;
if (ctxzone == 0) {
unsigned int algorithm=LIB$K_VM_FIXED;
unsigned int flags=LIB$M_VM_GET_FILL0|LIB$M_VM_EXTEND_AREA;
status = lib$create_vm_zone(&ctxzone, &algorithm, &fullsize, &flags);
if (!OK(status)) {
UNBLOCK_ASTS(aststat);
return status;
}
}
status = lib$get_vm(&fullsize, &ctx, &ctxzone);
if (OK(status)) {
ctx->specctx = ctx + 1;
ctx->specctx_size = specsize;
if (!OK(status)) lib$free_vm(&fullsize, &ctx, &ctxzone);
*ctxp = ctx;
}
UNBLOCK_ASTS(aststat);
return status;
} /* netlib___alloc_ctx */
int lib$getdvi(signed int * item_code, unsigned short int * channel, void * device_name, signed int * longword_integer_value, void * resultant_string, unsigned short * resultant_length) {
struct _iosb iosb;
struct item_list_3 itmlst[2];
int retlen;
int * retlenaddr;
int buflen;
void * bufaddr;
struct dsc$descriptor * dsc;
struct dsc$descriptor * devnam = device_name;
struct dsc$descriptor * res = resultant_string;
int sts;
int efn;
sts = lib$get_ef(&efn);
if ((sts&1)==0)
return sts;
// doing some approximations since I can not now decide the return type
if (longword_integer_value) {
buflen = 4;
bufaddr = longword_integer_value;
retlenaddr = &retlen;
} else {
buflen = res->dsc$w_length;
bufaddr = res->dsc$a_pointer;
if (resultant_length)
retlenaddr = resultant_length;
else
retlenaddr = &retlen;
}
itmlst[0].item_code=*item_code;
itmlst[0].buflen=buflen;
itmlst[0].retlenaddr=retlenaddr;
itmlst[0].bufaddr=bufaddr;
itmlst[1].item_code=0;
int chan = 0;
if (channel)
chan = *channel;
sts=sys$getdviw(efn,chan,devnam,itmlst,&iosb,0,0,0);
if ((sts&1)==0)
return sts;
sts = lib$free_ef(&efn);
if ((sts&1)==0)
return sts;
return sts;
}
/*
* plc_LoopInit()
*
* Description:
* Inits the plc_sLoopWait struct
* This routine must be called before plc_LoopWait
*
*/
pwr_tStatus plc_LoopInit (
plc_sLoopWait *p
) {
pwr_tStatus sts;
unsigned int Seconds;
sts = lib$get_ef(&p->TimerFlag);
if (EVEN(sts))
return sts;
sts = plc_LoopGetVmsUpTime(&Seconds, &p->LastTick);
p->LastLoop = p->LastTick;
p->LoopOflw = 0;
p->TickOflw = 0;
return sts;
}
int
child_execute_job (char *argv, struct child *child)
{
int i;
static struct dsc$descriptor_s cmddsc;
static struct dsc$descriptor_s pnamedsc;
static struct dsc$descriptor_s ifiledsc;
static struct dsc$descriptor_s ofiledsc;
static struct dsc$descriptor_s efiledsc;
int have_redirection = 0;
int have_append = 0;
int have_newline = 0;
int spflags = CLI$M_NOWAIT;
int status;
char *cmd = alloca (strlen (argv) + 512), *p, *q;
char ifile[256], ofile[256], efile[256];
int comnamelen;
char procname[100];
int in_string;
/* Parse IO redirection. */
ifile[0] = 0;
ofile[0] = 0;
efile[0] = 0;
child->comname = NULL;
DB (DB_JOBS, ("child_execute_job (%s)\n", argv));
while (isspace ((unsigned char)*argv))
argv++;
if (*argv == 0)
return 0;
sprintf (procname, "GMAKE_%05x", getpid () & 0xfffff);
pnamedsc.dsc$w_length = strlen(procname);
pnamedsc.dsc$a_pointer = procname;
pnamedsc.dsc$b_dtype = DSC$K_DTYPE_T;
pnamedsc.dsc$b_class = DSC$K_CLASS_S;
in_string = 0;
/* Handle comments and redirection. */
for (p = argv, q = cmd; *p; p++, q++)
{
if (*p == '"')
in_string = !in_string;
if (in_string)
{
*q = *p;
continue;
}
switch (*p)
{
case '#':
*p-- = 0;
*q-- = 0;
break;
case '\\':
p++;
if (*p == '\n')
p++;
if (isspace ((unsigned char)*p))
{
do { p++; } while (isspace ((unsigned char)*p));
p--;
}
*q = *p;
break;
case '<':
p = vms_redirect (&ifiledsc, ifile, p);
*q = ' ';
have_redirection = 1;
break;
case '>':
have_redirection = 1;
if (*(p-1) == '2')
{
q--;
if (strncmp (p, ">&1", 3) == 0)
{
p += 3;
strcpy (efile, "sys$output");
efiledsc.dsc$w_length = strlen(efile);
efiledsc.dsc$a_pointer = efile;
efiledsc.dsc$b_dtype = DSC$K_DTYPE_T;
efiledsc.dsc$b_class = DSC$K_CLASS_S;
}
else
p = vms_redirect (&efiledsc, efile, p);
}
else
{
if (*(p+1) == '>')
{
have_append = 1;
p += 1;
}
p = vms_redirect (&ofiledsc, ofile, p);
}
*q = ' ';
break;
case '\n':
have_newline = 1;
default:
*q = *p;
break;
}
}
*q = *p;
while (isspace ((unsigned char)*--q))
*q = '\0';
if (strncmp (cmd, "builtin_", 8) == 0)
{
child->pid = 270163;
child->efn = 0;
child->cstatus = 1;
DB (DB_JOBS, (_("BUILTIN [%s][%s]\n"), cmd, cmd+8));
p = cmd + 8;
if ((*(p) == 'c')
&& (*(p+1) == 'd')
&& ((*(p+2) == ' ') || (*(p+2) == '\t')))
{
p += 3;
while ((*p == ' ') || (*p == '\t'))
p++;
DB (DB_JOBS, (_("BUILTIN CD %s\n"), p));
if (chdir (p))
return 0;
else
return 1;
}
else if ((*(p) == 'r')
&& (*(p+1) == 'm')
&& ((*(p+2) == ' ') || (*(p+2) == '\t')))
{
int in_arg;
/* rm */
p += 3;
while ((*p == ' ') || (*p == '\t'))
p++;
in_arg = 1;
DB (DB_JOBS, (_("BUILTIN RM %s\n"), p));
while (*p)
{
switch (*p)
{
case ' ':
case '\t':
if (in_arg)
{
*p++ = ';';
in_arg = 0;
}
break;
default:
break;
}
p++;
}
}
else
{
printf (_("Unknown builtin command '%s'\n"), cmd);
fflush (stdout);
return 0;
}
}
/* Create a *.com file if either the command is too long for
lib$spawn, or the command contains a newline, or if redirection
is desired. Forcing commands with newlines into DCLs allows to
store search lists on user mode logicals. */
if (strlen (cmd) > MAXCMDLEN
|| (have_redirection != 0)
|| (have_newline != 0))
{
FILE *outfile;
char c;
char *sep;
int alevel = 0; /* apostrophe level */
if (strlen (cmd) == 0)
{
printf (_("Error, empty command\n"));
fflush (stdout);
return 0;
}
outfile = output_tmpfile (&child->comname, "sys$scratch:CMDXXXXXX.COM");
if (outfile == 0)
pfatal_with_name (_("fopen (temporary file)"));
comnamelen = strlen (child->comname);
if (ifile[0])
{
fprintf (outfile, "$ assign/user %s sys$input\n", ifile);
DB (DB_JOBS, (_("Redirected input from %s\n"), ifile));
ifiledsc.dsc$w_length = 0;
}
if (efile[0])
{
fprintf (outfile, "$ define sys$error %s\n", efile);
DB (DB_JOBS, (_("Redirected error to %s\n"), efile));
efiledsc.dsc$w_length = 0;
}
if (ofile[0])
if (have_append)
{
fprintf (outfile, "$ set noon\n");
fprintf (outfile, "$ define sys$output %.*s\n", comnamelen-3, child->comname);
DB (DB_JOBS, (_("Append output to %s\n"), ofile));
ofiledsc.dsc$w_length = 0;
}
else
{
fprintf (outfile, "$ define sys$output %s\n", ofile);
DB (DB_JOBS, (_("Redirected output to %s\n"), ofile));
ofiledsc.dsc$w_length = 0;
}
p = sep = q = cmd;
for (c = '\n'; c; c = *q++)
{
switch (c)
{
case '\n':
/* At a newline, skip any whitespace around a leading $
from the command and issue exactly one $ into the DCL. */
while (isspace ((unsigned char)*p))
p++;
if (*p == '$')
p++;
while (isspace ((unsigned char)*p))
p++;
fwrite (p, 1, q - p, outfile);
fputc ('$', outfile);
fputc (' ', outfile);
/* Reset variables. */
p = sep = q;
break;
/* Nice places for line breaks are after strings, after
comma or space and before slash. */
case '"':
q = vms_handle_apos (q);
sep = q;
break;
case ',':
case ' ':
sep = q;
break;
case '/':
case '\0':
sep = q - 1;
break;
default:
break;
}
if (sep - p > 78)
{
/* Enough stuff for a line. */
fwrite (p, 1, sep - p, outfile);
p = sep;
if (*sep)
{
/* The command continues. */
fputc ('-', outfile);
}
fputc ('\n', outfile);
}
}
if (*p)
{
fwrite (p, 1, --q - p, outfile);
fputc ('\n', outfile);
}
if (have_append)
{
fprintf (outfile, "$ deassign sys$output ! 'f$verify(0)\n");
fprintf (outfile, "$ append:=append\n");
fprintf (outfile, "$ delete:=delete\n");
fprintf (outfile, "$ append/new %.*s %s\n", comnamelen-3, child->comname, ofile);
fprintf (outfile, "$ delete %.*s;*\n", comnamelen-3, child->comname);
DB (DB_JOBS, (_("Append %.*s and cleanup\n"), comnamelen-3, child->comname));
}
fclose (outfile);
sprintf (cmd, "$ @%s", child->comname);
DB (DB_JOBS, (_("Executing %s instead\n"), cmd));
}
cmddsc.dsc$w_length = strlen(cmd);
cmddsc.dsc$a_pointer = cmd;
cmddsc.dsc$b_dtype = DSC$K_DTYPE_T;
cmddsc.dsc$b_class = DSC$K_CLASS_S;
child->efn = 0;
while (child->efn < 32 || child->efn > 63)
{
status = lib$get_ef ((unsigned long *)&child->efn);
if (!(status & 1))
{
if (child->comname)
{
if (!ISDB (DB_JOBS))
unlink (child->comname);
free (child->comname);
}
return 0;
}
}
sys$clref (child->efn);
vms_jobsefnmask |= (1 << (child->efn - 32));
/*
LIB$SPAWN [command-string]
[,input-file]
[,output-file]
[,flags]
[,process-name]
[,process-id] [,completion-status-address] [,byte-integer-event-flag-num]
[,AST-address] [,varying-AST-argument]
[,prompt-string] [,cli] [,table]
*/
#ifndef DONTWAITFORCHILD
/*
* Code to make ctrl+c and ctrl+y working.
* The problem starts with the synchronous case where after lib$spawn is
* called any input will go to the child. But with input re-directed,
* both control characters won't make it to any of the programs, neither
* the spawning nor to the spawned one. Hence the caller needs to spawn
* with CLI$M_NOWAIT to NOT give up the input focus. A sys$waitfr
* has to follow to simulate the wanted synchronous behaviour.
* The next problem is ctrl+y which isn't caught by the crtl and
* therefore isn't converted to SIGQUIT (for a signal handler which is
* already established). The only way to catch ctrl+y, is an AST
* assigned to the input channel. But ctrl+y handling of DCL needs to be
* disabled, otherwise it will handle it. Not to mention the previous
* ctrl+y handling of DCL needs to be re-established before make exits.
* One more: At the time of LIB$SPAWN signals are blocked. SIGQUIT will
* make it to the signal handler after the child "normally" terminates.
* This isn't enough. It seems reasonable for simple command lines like
* a 'cc foobar.c' spawned in a subprocess but it is unacceptable for
* spawning make. Therefore we need to abort the process in the AST.
*
* Prior to the spawn it is checked if an AST is already set up for
* ctrl+y, if not one is set up for a channel to SYS$COMMAND. In general
* this will work except if make is run in a batch environment, but there
* nobody can press ctrl+y. During the setup the DCL handling of ctrl+y
* is disabled and an exit handler is established to re-enable it.
* If the user interrupts with ctrl+y, the assigned AST will fire, force
* an abort to the subprocess and signal SIGQUIT, which will be caught by
* the already established handler and will bring us back to common code.
* After the spawn (now /nowait) a sys$waitfr simulates the /wait and
* enables the ctrl+y be delivered to this code. And the ctrl+c too,
* which the crtl converts to SIGINT and which is caught by the common
* signal handler. Because signals were blocked before entering this code
* sys$waitfr will always complete and the SIGQUIT will be processed after
* it (after termination of the current block, somewhere in common code).
* And SIGINT too will be delayed. That is ctrl+c can only abort when the
* current command completes. Anyway it's better than nothing :-)
*/
if (!setupYAstTried)
tryToSetupYAst();
status = lib$spawn (&cmddsc, /* cmd-string */
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc, /* input-file */
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc, /* output-file */
&spflags, /* flags */
&pnamedsc, /* proc name */
&child->pid, &child->cstatus, &child->efn,
0, 0,
0, 0, 0);
if (status & 1)
{
status= sys$waitfr (child->efn);
vmsHandleChildTerm(child);
}
#else
status = lib$spawn (&cmddsc,
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc,
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc,
&spflags,
&pnamedsc,
&child->pid, &child->cstatus, &child->efn,
vmsHandleChildTerm, child,
0, 0, 0);
#endif
if (!(status & 1))
{
printf (_("Error spawning, %d\n") ,status);
fflush (stdout);
switch (status)
{
case 0x1c:
errno = EPROCLIM;
break;
default:
errno = EFAIL;
}
}
return (status & 1);
}
/*
**++
** ROUTINE: sp_open
**
** FUNCTIONAL DESCRIPTION:
**
** Spawns a subprocess, possibly passing it an initial command.
**
** RETURNS: cond_value, longword (unsigned), write only, by value
**
** PROTOTYPE:
**
** sp_open(SPHANDLE *ctxpp, struct dsc$descriptor *inicmd,
** unsigned int (*rcvast)(void *), void *rcvastprm);
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES:
** SS$_NORMAL: Normal successful completion.
**
** SIDE EFFECTS: None.
**
**--
*/
unsigned int sp_open (SPHANDLE *ctxpp, void *inicmd, unsigned int (*rcvast)(void *), void *rcvastprm) {
SPHANDLE ctx;
unsigned int dvi_devnam = DVI$_DEVNAM, dvi_devbufsiz = DVI$_DEVBUFSIZ;
unsigned int spawn_flags = CLI$M_NOWAIT|CLI$M_NOKEYPAD;
unsigned int status;
struct dsc$descriptor inbox, outbox;
status = lib$get_vm(&spb_size, &ctx);
if (!OK(status)) return status;
/*
** Assign the SPHANDLE address for the caller immediately to avoid timing issues with
** WRTATTN AST that passes the ctx as rcvastprm (which sp_once does).
*/
*ctxpp = ctx;
ctx->sendque.head = ctx->sendque.tail = &ctx->sendque;
ctx->ok_to_send = 0;
/*
** Create the mailboxes we'll be using for I/O with the subprocess
*/
status = sys$crembx(0, &ctx->inchn, 1024, 1024, 0xff00, 0, 0, 0);
if (!OK(status)) {
lib$free_vm(&spb_size, &ctx);
return status;
}
status = sys$crembx(0, &ctx->outchn, 1024, 1024, 0xff00, 0, 0, 0);
if (!OK(status)) {
sys$dassgn(ctx->inchn);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Now that they're created, let's find out what they're called so we
** can tell LIB$SPAWN
*/
INIT_DYNDESC(inbox);
INIT_DYNDESC(outbox);
lib$getdvi(&dvi_devnam, &ctx->inchn, 0, 0, &inbox);
lib$getdvi(&dvi_devnam, &ctx->outchn, 0, 0, &outbox);
lib$getdvi(&dvi_devbufsiz, &ctx->outchn, 0, &ctx->bufsiz);
/*
** Create the output buffer for the subprocess.
*/
status = lib$get_vm(&ctx->bufsiz, &ctx->bufptr);
if (!OK(status)) {
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Set the "receive AST" routine to be invoked by SP_WRTATTN_AST
*/
ctx->rcvast = rcvast;
ctx->astprm = rcvastprm;
sys$qiow(0, ctx->outchn, IO$_SETMODE|IO$M_WRTATTN, 0, 0, 0,
sp_wrtattn_ast, ctx, 0, 0, 0, 0);
sys$qiow(0, ctx->inchn, IO$_SETMODE|IO$M_READATTN, 0, 0, 0,
sp_readattn_ast, ctx, 0, 0, 0, 0);
/*
** Get us a termination event flag
*/
status = lib$get_ef(&ctx->termefn);
if (OK(status)) lib$get_ef(&ctx->inefn);
if (OK(status)) lib$get_ef(&ctx->outefn);
if (!OK(status)) {
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&ctx->bufsiz, &ctx->bufptr);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Now create the subprocess
*/
status = lib$spawn(inicmd, &inbox, &outbox, &spawn_flags, 0, &ctx->pid,
0, &ctx->termefn);
if (!OK(status)) {
lib$free_ef(&ctx->termefn);
lib$free_ef(&ctx->outefn);
lib$free_ef(&ctx->inefn);
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&ctx->bufsiz, &ctx->bufptr);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Set up the exit handler, if we haven't done so already
*/
status = sys$setast(0);
if (!exh_declared) {
sys$dclexh(&exhblk);
exh_declared = 1;
}
if (status == SS$_WASSET) sys$setast(1);
/*
** Save the SPB in our private queue
*/
queue_insert(ctx, spque.tail);
/*
** Clean up and return
*/
str$free1_dx(&inbox);
str$free1_dx(&outbox);
return SS$_NORMAL;
} /* sp_open */
static int
vms_ualarm(int mseconds, int interval)
{
Alarm *a, abase;
struct item_list3 {
word length;
word code;
void *bufaddr;
void *retlenaddr;
} ;
static struct item_list3 itmlst[2];
static int first = 1;
unsigned long asten;
int iss, enabled;
if (first) {
first = 0;
itmlst[0].code = JPI$_ASTEN;
itmlst[0].length = sizeof(asten);
itmlst[0].retlenaddr = NULL;
itmlst[1].code = 0;
itmlst[1].length = 0;
itmlst[1].bufaddr = NULL;
itmlst[1].retlenaddr = NULL;
iss = lib$get_ef(&alarm_ef);
if (VMSERR(iss)) lib$signal(iss);
a0 = &alarm_base;
a0->function = UAL_NULL;
}
itmlst[0].bufaddr = &asten;
iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
if (VMSERR(iss)) lib$signal(iss);
if (!(asten&0x08)) return -1;
a = &abase;
if (mseconds) {
a->function = UAL_SET;
} else {
a->function = UAL_CLEAR;
}
us_to_VMS(mseconds, a->delay);
if (interval) {
us_to_VMS(interval, a->interval);
a->repeat = 1;
} else
a->repeat = 0;
iss = sys$clref(alarm_ef);
if (VMSERR(iss)) lib$signal(iss);
iss = sys$dclast(ualarm_AST,a,0);
if (VMSERR(iss)) lib$signal(iss);
iss = sys$waitfr(alarm_ef);
if (VMSERR(iss)) lib$signal(iss);
if (a->function == UAL_ACTIVE)
return VMS_to_us(a->remain);
else
return 0;
}
int
child_execute_job (char *argv, struct child *child)
{
int i;
static struct dsc$descriptor_s cmddsc;
static struct dsc$descriptor_s pnamedsc;
static struct dsc$descriptor_s ifiledsc;
static struct dsc$descriptor_s ofiledsc;
static struct dsc$descriptor_s efiledsc;
int have_redirection = 0;
int have_append = 0;
int have_newline = 0;
int spflags = CLI$M_NOWAIT;
int status;
char *cmd = alloca (strlen (argv) + 512), *p, *q;
char ifile[256], ofile[256], efile[256];
int comnamelen;
char procname[100];
int in_string;
/* Parse IO redirection. */
ifile[0] = 0;
ofile[0] = 0;
efile[0] = 0;
child->comname = NULL;
DB (DB_JOBS, ("child_execute_job (%s)\n", argv));
while (isspace ((unsigned char)*argv))
argv++;
if (*argv == 0)
return 0;
sprintf (procname, "GMAKE_%05x", getpid () & 0xfffff);
pnamedsc.dsc$w_length = strlen(procname);
pnamedsc.dsc$a_pointer = procname;
pnamedsc.dsc$b_dtype = DSC$K_DTYPE_T;
pnamedsc.dsc$b_class = DSC$K_CLASS_S;
in_string = 0;
/* Handle comments and redirection.
For ONESHELL, the redirection must be on the first line. Any other
redirection token is handled by DCL, that is, the pipe command with
redirection can be used, but it should not be used on the first line
for ONESHELL. */
for (p = argv, q = cmd; *p; p++, q++)
{
if (*p == '"')
in_string = !in_string;
if (in_string)
{
*q = *p;
continue;
}
switch (*p)
{
case '#':
*p-- = 0;
*q-- = 0;
break;
case '\\':
p++;
if (*p == '\n')
p++;
if (isspace ((unsigned char)*p))
{
do { p++; } while (isspace ((unsigned char)*p));
p--;
}
*q = *p;
break;
case '<':
if (have_newline==0)
{
p = vms_redirect (&ifiledsc, ifile, p);
*q = ' ';
have_redirection = 1;
}
else
*q = *p;
break;
case '>':
if (have_newline==0)
{
have_redirection = 1;
if (*(p-1) == '2')
{
q--;
if (strncmp (p, ">&1", 3) == 0)
{
p += 2;
strcpy (efile, "sys$output");
efiledsc.dsc$w_length = strlen(efile);
efiledsc.dsc$a_pointer = efile;
efiledsc.dsc$b_dtype = DSC$K_DTYPE_T;
efiledsc.dsc$b_class = DSC$K_CLASS_S;
}
else
p = vms_redirect (&efiledsc, efile, p);
}
else
{
if (*(p+1) == '>')
{
have_append = 1;
p += 1;
}
p = vms_redirect (&ofiledsc, ofile, p);
}
*q = ' ';
}
else
*q = *p;
break;
case '\n':
have_newline++;
default:
*q = *p;
break;
}
}
*q = *p;
while (isspace ((unsigned char)*--q))
*q = '\0';
#define VMS_EMPTY_ECHO "write sys$output \"\""
if (have_newline == 0)
{
/* multiple shells */
if (strncmp(cmd, "builtin_", 8) == 0)
{
child->pid = 270163;
child->efn = 0;
child->cstatus = 1;
DB(DB_JOBS, (_("BUILTIN [%s][%s]\n"), cmd, cmd + 8));
p = cmd + 8;
if ((*(p) == 'c') && (*(p + 1) == 'd')
&& ((*(p + 2) == ' ') || (*(p + 2) == '\t')))
{
p += 3;
while ((*p == ' ') || (*p == '\t'))
p++;
DB(DB_JOBS, (_("BUILTIN CD %s\n"), p));
if (chdir(p))
return 0;
else
return 1;
}
else if ((*(p) == 'e')
&& (*(p+1) == 'c')
&& (*(p+2) == 'h')
&& (*(p+3) == 'o')
&& ((*(p+4) == ' ') || (*(p+4) == '\t') || (*(p+4) == '\0')))
{
/* This is not a real builtin, it is a built in pre-processing
for the VMS/DCL echo (write sys$output) to ensure the to be echoed
string is correctly quoted (with the DCL quote character '"'). */
char *vms_echo;
p += 4;
if (*p == '\0')
cmd = VMS_EMPTY_ECHO;
else
{
p++;
while ((*p == ' ') || (*p == '\t'))
p++;
if (*p == '\0')
cmd = VMS_EMPTY_ECHO;
else
{
vms_echo = alloca(strlen(p) + sizeof VMS_EMPTY_ECHO);
strcpy(vms_echo, VMS_EMPTY_ECHO);
vms_echo[sizeof VMS_EMPTY_ECHO - 2] = '\0';
strcat(vms_echo, p);
strcat(vms_echo, "\"");
cmd = vms_echo;
}
}
DB (DB_JOBS, (_("BUILTIN ECHO %s->%s\n"), p, cmd));
}
else
{
printf(_("Unknown builtin command '%s'\n"), cmd);
fflush(stdout);
return 0;
}
}
/* expand ':' aka 'do nothing' builtin for bash and friends */
else if (cmd[0]==':' && cmd[1]=='\0')
{
cmd = "continue";
}
}
else
{
/* todo: expand ':' aka 'do nothing' builtin for bash and friends */
/* For 'one shell' expand all the
builtin_echo
to
write sys$output ""
where one is ......7 bytes longer.
At the same time ensure that the echo string is properly terminated.
For that, allocate a command buffer big enough for all possible expansions
(have_newline is the count), then expand, copy and terminate. */
char *tmp_cmd;
int nloff = 0;
int vlen = 0;
int clen = 0;
int inecho;
tmp_cmd = alloca(strlen(cmd) + (have_newline + 1) * 7 + 1);
tmp_cmd[0] = '\0';
inecho = 0;
while (cmd[nloff])
{
if (inecho)
{
if (clen < nloff - 1)
{
memcpy(&tmp_cmd[vlen], &cmd[clen], nloff - clen - 1);
vlen += nloff - clen - 1;
clen = nloff;
}
inecho = 0;
tmp_cmd[vlen] = '"';
vlen++;
tmp_cmd[vlen] = '\n';
vlen++;
}
if (strncmp(&cmd[nloff], "builtin_", 8) == 0)
{
/* ??? */
child->pid = 270163;
child->efn = 0;
child->cstatus = 1;
DB (DB_JOBS, (_("BUILTIN [%s][%s]\n"), &cmd[nloff], &cmd[nloff+8]));
p = &cmd[nloff + 8];
if ((*(p) == 'e')
&& (*(p + 1) == 'c')
&& (*(p + 2) == 'h')
&& (*(p + 3) == 'o')
&& ((*(p + 4) == ' ') || (*(p + 4) == '\t') || (*(p + 4) == '\0')))
{
if (clen < nloff - 1)
{
memcpy(&tmp_cmd[vlen], &cmd[clen], nloff - clen - 1);
vlen += nloff - clen - 1;
clen = nloff;
if (inecho)
{
inecho = 0;
tmp_cmd[vlen] = '"';
vlen++;
}
tmp_cmd[vlen] = '\n';
vlen++;
}
inecho = 1;
p += 4;
while ((*p == ' ') || (*p == '\t'))
p++;
clen = p - cmd;
memcpy(&tmp_cmd[vlen], VMS_EMPTY_ECHO,
sizeof VMS_EMPTY_ECHO - 2);
vlen += sizeof VMS_EMPTY_ECHO - 2;
}
else
{
printf (_("Builtin command is unknown or unsupported in .ONESHELL: '%s'\n"), &cmd[nloff]);
fflush(stdout);
return 0;
}
}
nloff = nextnl(cmd, nloff + 1);
}
if (clen < nloff)
{
memcpy(&tmp_cmd[vlen], &cmd[clen], nloff - clen);
vlen += nloff - clen;
clen = nloff;
if (inecho)
{
inecho = 0;
tmp_cmd[vlen] = '"';
vlen++;
}
}
tmp_cmd[vlen] = '\0';
cmd = tmp_cmd;
}
#ifdef USE_DCL_COM_FILE
/* Enforce the creation of a command file.
Then all the make environment variables are written as DCL symbol
assignments into the command file as well, so that they are visible
in the sub-process but do not affect the current process.
Further, this way DCL reads the input stream and therefore does
'forced' symbol substitution, which it doesn't do for one-liners when
they are 'lib$spawn'ed. */
#else
/* Create a *.com file if either the command is too long for
lib$spawn, or the command contains a newline, or if redirection
is desired. Forcing commands with newlines into DCLs allows to
store search lists on user mode logicals. */
if (strlen (cmd) > MAXCMDLEN
|| (have_redirection != 0)
|| (have_newline != 0))
#endif
{
FILE *outfile;
char c;
char *sep;
int alevel = 0; /* apostrophe level */
int tmpstrlen;
char *tmpstr;
if (strlen (cmd) == 0)
{
printf (_("Error, empty command\n"));
fflush (stdout);
return 0;
}
outfile = output_tmpfile (&child->comname, "sys$scratch:CMDXXXXXX.COM");
/* 012345678901234567890 */
#define TMP_OFFSET 12
#define TMP_LEN 9
if (outfile == 0)
pfatal_with_name (_("fopen (temporary file)"));
comnamelen = strlen (child->comname);
tmpstr = &child->comname[TMP_OFFSET];
tmpstrlen = TMP_LEN;
/* The whole DCL "script" is executed as one action, and it behaves as
any DCL "script", that is errors stop it but warnings do not. Usually
the command on the last line, defines the exit code. However, with
redirections there is a prolog and possibly an epilog to implement
the redirection. Both are part of the script which is actually
executed. So if the redirection encounters an error in the prolog,
the user actions will not run; if in the epilog, the user actions
ran, but output is not captured. In both error cases, the error of
redirection is passed back and not the exit code of the actions. The
user should be able to enable DCL "script" verification with "set
verify". However, the prolog and epilog commands are not shown. Also,
if output redirection is used, the verification output is redirected
into that file as well. */
fprintf (outfile, "$ %.*s_1 = \"''f$verify(0)'\"\n", tmpstrlen, tmpstr);
if (ifile[0])
{
fprintf (outfile, "$ assign/user %s sys$input\n", ifile);
DB (DB_JOBS, (_("Redirected input from %s\n"), ifile));
ifiledsc.dsc$w_length = 0;
}
if (efile[0])
{
fprintf (outfile, "$ define sys$error %s\n", efile);
DB (DB_JOBS, (_("Redirected error to %s\n"), efile));
efiledsc.dsc$w_length = 0;
}
if (ofile[0])
if (have_append)
{
fprintf (outfile, "$ define sys$output %.*s\n", comnamelen-3, child->comname);
fprintf (outfile, "$ on error then $ goto %.*s\n", tmpstrlen, tmpstr);
DB (DB_JOBS, (_("Append output to %s\n"), ofile));
ofiledsc.dsc$w_length = 0;
}
else
{
fprintf (outfile, "$ define sys$output %s\n", ofile);
DB (DB_JOBS, (_("Redirected output to %s\n"), ofile));
ofiledsc.dsc$w_length = 0;
}
#ifdef USE_DCL_COM_FILE
/* Export the child environment into DCL symbols */
if (child->environment != 0)
{
char **ep = child->environment;
char *valstr;
while (*ep != 0)
{
valstr = strchr(*ep, '=');
if (valstr == NULL)
continue;
fprintf(outfile, "$ %.*s=\"%s\"\n", valstr - *ep, *ep,
valstr + 1);
ep++;
}
}
#endif
fprintf (outfile, "$ %.*s_ = f$verify(%.*s_1)\n", tmpstrlen, tmpstr, tmpstrlen, tmpstr);
/* TODO: give 78 a name! Whether 78 is a good number is another question.
Trim, split and write the command lines.
Splitting of a command is done after 78 output characters at an
appropriate place (after strings, after comma or space and
before slash): appending a hyphen indicates that the DCL command
is being continued.
Trimming is to skip any whitespace around - including - a
leading $ from the command to ensure writing exactly one "$ "
at the beginning of the line of the output file. Trimming is
done when a new command is seen, indicated by a '\n' (outside
of a string).
The buffer so far is written and reset, when a new command is
seen, when a split was done and at the end of the command.
Only for ONESHELL there will be several commands separated by
'\n'. But there can always be multiple continuation lines. */
p = sep = q = cmd;
for (c = '\n'; c; c = *q++)
{
switch (c)
{
case '\n':
if (q > p)
{
fwrite(p, 1, q - p, outfile);
p = q;
}
fputc('$', outfile);
fputc(' ', outfile);
while (isspace((unsigned char) *p))
p++;
if (*p == '$')
p++;
while (isspace((unsigned char) *p))
p++;
q = sep = p;
break;
case '"':
q = vms_handle_apos(q);
sep = q;
break;
case ',':
case ' ':
sep = q;
break;
case '/':
case '\0':
sep = q - 1;
break;
default:
break;
}
if (sep - p > 78)
{
/* Enough stuff for a line. */
fwrite(p, 1, sep - p, outfile);
p = sep;
if (*sep)
{
/* The command continues. */
fputc('-', outfile);
}
fputc('\n', outfile);
}
}
if (*p)
{
fwrite(p, 1, --q - p, outfile);
fputc('\n', outfile);
}
if (have_append)
{
fprintf (outfile, "$ %.*s: ! 'f$verify(0)\n", tmpstrlen, tmpstr);
fprintf (outfile, "$ %.*s_2 = $status\n", tmpstrlen, tmpstr);
fprintf (outfile, "$ on error then $ exit\n");
fprintf (outfile, "$ deassign sys$output\n");
if (efile[0])
fprintf (outfile, "$ deassign sys$error\n");
fprintf (outfile, "$ append:=append\n");
fprintf (outfile, "$ delete:=delete\n");
fprintf (outfile, "$ append/new %.*s %s\n", comnamelen-3, child->comname, ofile);
fprintf (outfile, "$ delete %.*s;*\n", comnamelen-3, child->comname);
fprintf (outfile, "$ exit '%.*s_2 + (0*f$verify(%.*s_1))\n", tmpstrlen, tmpstr, tmpstrlen, tmpstr);
DB (DB_JOBS, (_("Append %.*s and cleanup\n"), comnamelen-3, child->comname));
}
fclose (outfile);
sprintf (cmd, "$ @%s", child->comname);
DB (DB_JOBS, (_("Executing %s instead\n"), cmd));
}
cmddsc.dsc$w_length = strlen(cmd);
cmddsc.dsc$a_pointer = cmd;
cmddsc.dsc$b_dtype = DSC$K_DTYPE_T;
cmddsc.dsc$b_class = DSC$K_CLASS_S;
child->efn = 0;
while (child->efn < 32 || child->efn > 63)
{
status = lib$get_ef ((unsigned long *)&child->efn);
if (!(status & 1))
{
if (child->comname)
{
if (!ISDB (DB_JOBS))
unlink (child->comname);
free (child->comname);
}
return 0;
}
}
sys$clref (child->efn);
vms_jobsefnmask |= (1 << (child->efn - 32));
/*
LIB$SPAWN [command-string]
[,input-file]
[,output-file]
[,flags]
[,process-name]
[,process-id] [,completion-status-address] [,byte-integer-event-flag-num]
[,AST-address] [,varying-AST-argument]
[,prompt-string] [,cli] [,table]
*/
#ifndef DONTWAITFORCHILD
/*
* Code to make ctrl+c and ctrl+y working.
* The problem starts with the synchronous case where after lib$spawn is
* called any input will go to the child. But with input re-directed,
* both control characters won't make it to any of the programs, neither
* the spawning nor to the spawned one. Hence the caller needs to spawn
* with CLI$M_NOWAIT to NOT give up the input focus. A sys$waitfr
* has to follow to simulate the wanted synchronous behaviour.
* The next problem is ctrl+y which isn't caught by the crtl and
* therefore isn't converted to SIGQUIT (for a signal handler which is
* already established). The only way to catch ctrl+y, is an AST
* assigned to the input channel. But ctrl+y handling of DCL needs to be
* disabled, otherwise it will handle it. Not to mention the previous
* ctrl+y handling of DCL needs to be re-established before make exits.
* One more: At the time of LIB$SPAWN signals are blocked. SIGQUIT will
* make it to the signal handler after the child "normally" terminates.
* This isn't enough. It seems reasonable for simple command lines like
* a 'cc foobar.c' spawned in a subprocess but it is unacceptable for
* spawning make. Therefore we need to abort the process in the AST.
*
* Prior to the spawn it is checked if an AST is already set up for
* ctrl+y, if not one is set up for a channel to SYS$COMMAND. In general
* this will work except if make is run in a batch environment, but there
* nobody can press ctrl+y. During the setup the DCL handling of ctrl+y
* is disabled and an exit handler is established to re-enable it.
* If the user interrupts with ctrl+y, the assigned AST will fire, force
* an abort to the subprocess and signal SIGQUIT, which will be caught by
* the already established handler and will bring us back to common code.
* After the spawn (now /nowait) a sys$waitfr simulates the /wait and
* enables the ctrl+y be delivered to this code. And the ctrl+c too,
* which the crtl converts to SIGINT and which is caught by the common
* signal handler. Because signals were blocked before entering this code
* sys$waitfr will always complete and the SIGQUIT will be processed after
* it (after termination of the current block, somewhere in common code).
* And SIGINT too will be delayed. That is ctrl+c can only abort when the
* current command completes. Anyway it's better than nothing :-)
*/
if (!setupYAstTried)
tryToSetupYAst();
status = lib$spawn (&cmddsc, /* cmd-string */
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc, /* input-file */
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc, /* output-file */
&spflags, /* flags */
&pnamedsc, /* proc name */
&child->pid, &child->cstatus, &child->efn,
0, 0,
0, 0, 0);
if (status & 1)
{
status= sys$waitfr (child->efn);
vmsHandleChildTerm(child);
}
#else
status = lib$spawn (&cmddsc,
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc,
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc,
&spflags,
&pnamedsc,
&child->pid, &child->cstatus, &child->efn,
vmsHandleChildTerm, child,
0, 0, 0);
#endif
if (!(status & 1))
{
printf (_("Error spawning, %d\n") ,status);
fflush (stdout);
switch (status)
{
case 0x1c:
errno = EPROCLIM;
break;
default:
errno = EFAIL;
}
}
return (status & 1);
}
int main (int argc, char *argv[]) {
int status; /* Routine status */
int chan; /* Device channel */
int efn; /* Event flag */
char dev_name[31]; /* Device name string */
char string[128]; /* Buffer for ID strings */
IOSB_T iosb; /* I/O status block for QIO call */
int debug_info[128]; /* Define debug information buffer */
int i; /* Loop counter */
int tmo_time; /* Timeout time */
struct dsc$descriptor_d /* Define a string descriptor */
dev_dsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
/* Get device name */
if (argc == 2) { /* Is there one argument ? */
++argv; /* Move to second argument */
strcpy(dev_name,*argv); /* Get the device name */
} else {
printf("\nUsage: ide-info <device-name>\n");
exit(SS$_INSFARG); /* Exit */
}
/* Assign a channel to the device */
dev_dsc.dsc$w_length = strlen(dev_name); /* Set string length */
dev_dsc.dsc$a_pointer= dev_name; /* Point to the string */
status = sys$assign(&dev_dsc,&chan,0,0,0); /* Assign the channel */
if (!$VMS_STATUS_SUCCESS(status)) { /* Check for success */
printf("? Failed to assign channel, status is %X\n",status);
exit(status); /* Exit with status */
}
/* Get an EFN to use */
status = lib$get_ef(&efn); /* Acquire an EFN */
if (!$VMS_STATUS_SUCCESS(status)) { /* Check for success */
printf("? Failed to acquire EFN, status = %X\n",status);
exit(status); /* Exit with status */
}
/* Ask for the ID page from the drive */
status = sys$qiow(efn,chan,IO$_READRCT,&iosb,0,0,&buffer,512,0,0,0,0);
if (!$VMS_STATUS_SUCCESS(status)) {
printf("? QIO service call failed, status is %X\n",status);
exit(status); /* Exit with failure status */
}
if (!$VMS_STATUS_SUCCESS(iosb.status)) {
printf("? QIO operation failed, IOSB status is %X\n",iosb.status);
exit(iosb.status); /* Exit with status */
}
/* Print the information obtained from the page */
printf("ID Page information for %s:\n\n",dev_name);
copy(string,buffer.model_number,MODEL_LENGTH);
printf("Drive Model: \"%s\"\n",string);
copy(string,buffer.serial_number,20);
printf("\tS/N: \"%s\" ",string);
copy(string,buffer.firmware_revision,8);
printf("F/W rev: \"%s\"\n",string);
printf("Config: %x\n",buffer.config);
printf("Geometry: Cylinders: %d ",buffer.cyls);
printf("Heads: %d ",buffer.heads);
printf("Sectors: %d\n",buffer.sectors);
printf("Unformatted: bytes/track: %d ",buffer.ubytes_track);
printf("bytes/sector: %d\n",buffer.ubytes_sector);
printf("Buffer type: %d ",buffer.buffer_type);
printf("Buffer size (in blocks): %d\n",buffer.buffer_size_blocks);
printf("Number of ECC bytes/sector: %d\n",buffer.ecc_bytes);
printf("Number of sectors/interrupt: %d\n",buffer.rw_multiple);
printf("Vendor unique: %d\n",buffer.unique47);
printf("Doubleword I/O flag: %d\n",buffer.dblword_io);
printf("Capabilities: %x (LBA - %d, DMA - %d)\n",buffer.capabilities,
((buffer.capabilities&0x100)>>8),((buffer.capabilities&0x200)>>9));
printf("Reserved: %d\n",buffer.rsvd50);
printf("Cycle times: PIO %d ",buffer.pio_cycle);
printf("DMA %d\n",buffer.dma_cycle);
printf("Valid bit for next 4 fields: %d\n",buffer.valid54_58);
printf("Current: Cylinders %d ",buffer.curr_cyls);
printf("Heads %d ",buffer.curr_heads);
printf("Sectors %d ",buffer.curr_sectors);
printf("Maximum sector number %d\n",buffer.max_sectors);
printf("Current sectors/interrupt setting: %d valid: %d\n",buffer.multiple_sectors&0xFF,
((buffer.multiple_sectors&0x100)>>8));
printf("LBA mode maximum block number: %d\n",buffer.lba_maxblock);
printf("Single word DMA info: %d\n",buffer.single_word_dma);
printf("Multi word DMA info: %d\n",buffer.multi_word_dma);
/* Ask for the debug information from the driver */
printf("\n\nDebug Information:\n\n");
status = sys$qiow(efn,chan,IO$_RDSTATS,&iosb,0,0,&debug_info,
sizeof(debug_info),0,0,0,0);
if (!$VMS_STATUS_SUCCESS(status)) {
printf("? QIO service call failed, status is %X\n",status);
exit(status); /* Exit with failure status */
}
if (!$VMS_STATUS_SUCCESS(iosb.status)) {
if (iosb.status == SS$_NODATA) {
printf("\t%% DEBUG driver is not loaded\n");
exit(SS$_NORMAL); /* Just exit at this point */
} else {
printf("? QIO operation failed, IOSB status is %X\n",iosb.status);
exit(iosb.status); /* Exit with status */
}
}
/* Print out the debug information */
printf("Total interrupts: %d",debug_info[0]);
printf("\tTotal unexpected interrupts: %d\n",debug_info[1]);
printf("Number of CRAMs - %d\n",debug_info[2]);
printf("Transfer buffer address - %x\n",debug_info[3]);
printf("Base SPTE address - %x",debug_info[4]);
printf("\tBase S0 address - %x\n",debug_info[5]);
tmo_time = debug_info[6]-2;
printf("Timeout time: %d seconds\n",tmo_time);
printf("\n\tSeconds\tCount\n");
for (i=0; i<=tmo_time; i++) {
printf("\t%d\t%d\n",i,debug_info[7+i]);
}
printf("\t>%d\t%d\n",tmo_time,debug_info[7+tmo_time+1]);
}
