[p5sagit/p5-mst-13.2.git] / vms / ext / Stdio / Stdio.xs

/* VMS::Stdio - VMS extensions to stdio routines 
 *
 * Version:  2.2
 * Author:   Charles Bailey  bailey@newman.upenn.edu
 * Revised:  18-Jul-1998
 *
 */

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include <file.h>
#include <iodef.h>
#include <rms.h>
#include <starlet.h>

static bool
constant(name, pval)
char *name;
IV *pval;
{
    if (strnNE(name, "O_", 2)) return FALSE;

    if (strEQ(name, "O_APPEND"))
#ifdef O_APPEND
	{ *pval = O_APPEND; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_CREAT"))
#ifdef O_CREAT
	{ *pval = O_CREAT; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_EXCL"))
#ifdef O_EXCL
	{ *pval = O_EXCL; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_NDELAY"))
#ifdef O_NDELAY
	{ *pval = O_NDELAY; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_NOWAIT"))
#ifdef O_NOWAIT
	{ *pval = O_NOWAIT; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_RDONLY"))
#ifdef O_RDONLY
	{ *pval = O_RDONLY; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_RDWR"))
#ifdef O_RDWR
	{ *pval = O_RDWR; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_TRUNC"))
#ifdef O_TRUNC
	{ *pval = O_TRUNC; return TRUE; }
#else
	return FALSE;
#endif
    if (strEQ(name, "O_WRONLY"))
#ifdef O_WRONLY
	{ *pval = O_WRONLY; return TRUE; }
#else
	return FALSE;
#endif

    return FALSE;
}


static SV *
newFH(FILE *fp, char type) {
    SV *rv;
    GV **stashp, *gv = (GV *)NEWSV(0,0);
    HV *stash;
    IO *io;

    dTHR;
    /* Find stash for VMS::Stdio.  We don't do this once at boot
     * to allow for possibility of threaded Perl with per-thread
     * symbol tables.  This code (through io = ...) is really
     * equivalent to gv_fetchpv("VMS::Stdio::__FH__",TRUE,SVt_PVIO),
     * with a little less overhead, and good exercise for me. :-) */
    stashp = (GV **)hv_fetch(PL_defstash,"VMS::",5,TRUE);
    if (!stashp || *stashp == (GV *)&PL_sv_undef) return Nullsv;
    if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();
    stashp = (GV **)hv_fetch(GvHV(*stashp),"Stdio::",7,TRUE);
    if (!stashp || *stashp == (GV *)&PL_sv_undef) return Nullsv;
    if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();

    /* Set up GV to point to IO, and then take reference */
    gv_init(gv,stash,"__FH__",6,0);
    io = GvIOp(gv) = newIO();
    IoIFP(io) = fp;
    if (type != '<') IoOFP(io) = fp;
    IoTYPE(io) = type;
    rv = newRV((SV *)gv);
    SvREFCNT_dec(gv);
    return sv_bless(rv,stash);
}

MODULE = VMS::Stdio  PACKAGE = VMS::Stdio

void
constant(name)
	char *	name
	PROTOTYPE: $
	CODE:
	IV i;
	if (constant(name, &i))
	    ST(0) = sv_2mortal(newSViv(i));
	else
	    ST(0) = &PL_sv_undef;

void
binmode(fh)
	SV *	fh
	PROTOTYPE: $
	CODE:
	    IO *io = sv_2io(fh);
	    FILE *fp = io ? IoOFP(io) : NULL;
	    char iotype = io ? IoTYPE(io) : '\0';
	    char filespec[NAM$C_MAXRSS], *acmode, *s, *colon, *dirend = Nullch;
	    int ret = 0, saverrno = errno, savevmserrno = vaxc$errno;
	    fpos_t pos;
	    if (fp == NULL || strchr(">was+-|",iotype) == Nullch) {
	      set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
	    }
	    if (!fgetname(fp,filespec)) XSRETURN_UNDEF;
	    for (s = filespec; *s; s++) {
	      if (*s == ':') colon = s;
	      else if (*s == ']' || *s == '>') dirend = s;
	    }
	    /* Looks like a tmpfile, which will go away if reopened */
	    if (s == dirend + 3) {
	      set_errno(EBADF); set_vaxc_errno(RMS$_IOP); XSRETURN_UNDEF;
	    }
	    /* If we've got a non-file-structured device, clip off the trailing
	     * junk, and don't lose sleep if we can't get a stream position.  */
	    if (dirend == Nullch) *(colon+1) = '\0'; 
	    if (iotype != '-' && (ret = fgetpos(fp, &pos)) == -1 && dirend)
	      XSRETURN_UNDEF;
	    switch (iotype) {
	      case '<': case 'r':           acmode = "rb";                      break;
	      case '>': case 'w': case '|':
	        /* use 'a' instead of 'w' to avoid creating new file;
	           fsetpos below will take care of restoring file position */
	      case 'a':                     acmode = "ab";                      break;
	      case '+':  case 's':          acmode = "rb+";                     break;
	      case '-':                     acmode = fileno(fp) ? "ab" : "rb";  break;
	      /* iotype'll be null for the SYS$INPUT:/SYS$OUTPUT:/SYS$ERROR: files */
	      /* since we didn't really open them and can't really */
	      /* reopen them */
	      case 0:                       XSRETURN_UNDEF;
	      default:
	        if (PL_dowarn) warn("Unrecognized iotype %c for %s in binmode",
	                         iotype, filespec);
	        acmode = "rb+";
	    }
	    if (freopen(filespec,acmode,fp) == NULL) XSRETURN_UNDEF;
	    if (iotype != '-' && ret != -1 && fsetpos(fp,&pos) == -1) XSRETURN_UNDEF;
	    if (ret == -1) { set_errno(saverrno); set_vaxc_errno(savevmserrno); }
	    XSRETURN_YES;


void
flush(fp)
	FILE *	fp
	PROTOTYPE: $
	CODE:
	    if (fflush(fp)) { ST(0) = &PL_sv_undef; }
	    else            { clearerr(fp); ST(0) = &PL_sv_yes; }

char *
getname(fp)
	FILE *	fp
	PROTOTYPE: $
	CODE:
	    char fname[NAM$C_MAXRSS+1];
	    ST(0) = sv_newmortal();
	    if (fgetname(fp,fname) != NULL) sv_setpv(ST(0),fname);

void
rewind(fp)
	FILE *	fp
	PROTOTYPE: $
	CODE:
	    ST(0) = rewind(fp) ? &PL_sv_undef : &PL_sv_yes;

void
remove(name)
	char *name
	PROTOTYPE: $
	CODE:
	    ST(0) = remove(name) ? &PL_sv_undef : &PL_sv_yes;

void
setdef(...)
	PROTOTYPE: @
	CODE:
	    char vmsdef[NAM$C_MAXRSS+1], es[NAM$C_MAXRSS], sep;
	    unsigned long int retsts;
	    struct FAB deffab = cc$rms_fab;
	    struct NAM defnam = cc$rms_nam;
	    struct dsc$descriptor_s dirdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
	    STRLEN n_a;
	    if (items) {
		SV *defsv = ST(items-1);  /* mimic chdir() */
		ST(0) = &PL_sv_undef;
		if (!SvPOK(defsv)) { SETERRNO(EINVAL,LIB$_INVARG); XSRETURN(1); }
		if (tovmsspec(SvPV(defsv,n_a),vmsdef) == NULL) { XSRETURN(1); }
		deffab.fab$l_fna = vmsdef; deffab.fab$b_fns = strlen(vmsdef);
	    }
	    else {
		deffab.fab$l_fna = "SYS$LOGIN"; deffab.fab$b_fns = 9;
		EXTEND(sp,1);  ST(0) = &PL_sv_undef;
	    }
	    defnam.nam$l_esa = es;  defnam.nam$b_ess = sizeof es;
	    deffab.fab$l_nam = &defnam;
	    retsts = sys$parse(&deffab,0,0);
	    if (retsts & 1) {
		if (defnam.nam$v_wildcard) retsts = RMS$_WLD;
		else if (defnam.nam$b_name || defnam.nam$b_type > 1 ||
	             defnam.nam$b_ver > 1) retsts = RMS$_DIR;
		}
	    defnam.nam$b_nop |= NAM$M_SYNCHK; defnam.nam$l_rlf = NULL; deffab.fab$b_dns = 0;
	    if (!(retsts & 1)) {
		set_vaxc_errno(retsts);
		switch (retsts) {
		    case RMS$_DNF:
			set_errno(ENOENT); break;
		    case RMS$_SYN: case RMS$_DIR: case RMS$_DEV:
			set_errno(EINVAL); break;
		    case RMS$_PRV:
			set_errno(EACCES); break;
		    default:
			set_errno(EVMSERR); break;
		}
		(void) sys$parse(&deffab,0,0);  /* free up context */
		XSRETURN(1);
	    }
	    sep = *defnam.nam$l_dir;
	    *defnam.nam$l_dir = '\0';
	    my_setenv("SYS$DISK",defnam.nam$b_node ? defnam.nam$l_node : defnam.nam$l_dev);
	    *defnam.nam$l_dir = sep;
	    dirdsc.dsc$a_pointer = defnam.nam$l_dir; dirdsc.dsc$w_length = defnam.nam$b_dir;
	    if ((retsts = sys$setddir(&dirdsc,0,0)) & 1) ST(0) = &PL_sv_yes;
	    else { set_errno(EVMSERR); set_vaxc_errno(retsts); }
	    (void) sys$parse(&deffab,0,0);  /* free up context */

void
sync(fp)
	FILE *	fp
	PROTOTYPE: $
	CODE:
	    if (fsync(fileno(fp))) { ST(0) = &PL_sv_undef; }
	    else                   { clearerr(fp); ST(0) = &PL_sv_yes; }

char *
tmpnam()
	PROTOTYPE:
	CODE:
	    char fname[L_tmpnam];
	    ST(0) = sv_newmortal();
	    if (tmpnam(fname) != NULL) sv_setpv(ST(0),fname);

void
vmsopen(spec,...)
	char *	spec
	PROTOTYPE: @
	CODE:
	    char *args[8],mode[3] = {'r','\0','\0'}, type = '<';
	    register int i, myargc;
	    FILE *fp;
	    STRLEN n_a;
	
	    if (!spec || !*spec) {
	       SETERRNO(EINVAL,LIB$_INVARG);
	       XSRETURN_UNDEF;
	    }
	    if (items > 9) croak("too many args");
	
	    /* First, set up name and mode args from perl's string */
	    if (*spec == '+') {
	      mode[1] = '+';
	      spec++;
	    }
	    if (*spec == '>') {
	      if (*(spec+1) == '>') *mode = 'a', spec += 2;
	      else *mode = 'w',  spec++;
	    }
	    else if (*spec == '<') spec++;
	    myargc = items - 1;
	    for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+1),n_a);
	    /* This hack brought to you by C's opaque arglist management */
	    switch (myargc) {
	      case 0:
	        fp = fopen(spec,mode);
	        break;
	      case 1:
	        fp = fopen(spec,mode,args[0]);
	        break;
	      case 2:
	        fp = fopen(spec,mode,args[0],args[1]);
	        break;
	      case 3:
	        fp = fopen(spec,mode,args[0],args[1],args[2]);
	        break;
	      case 4:
	        fp = fopen(spec,mode,args[0],args[1],args[2],args[3]);
	        break;
	      case 5:
	        fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4]);
	        break;
	      case 6:
	        fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5]);
	        break;
	      case 7:
	        fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
	        break;
	      case 8:
	        fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
	        break;
	    }
	    if (fp != Nullfp) {
	      SV *fh = newFH(fp,(mode[1] ? '+' : (mode[0] == 'r' ? '<' : (mode[0] == 'a' ? 'a' : '>'))));
	      ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
	    }
	    else { ST(0) = &PL_sv_undef; }

void
vmssysopen(spec,mode,perm,...)
	char *	spec
	int	mode
	int	perm
	PROTOTYPE: @
	CODE:
	    char *args[8];
	    int i, myargc, fd;
	    FILE *fp;
	    SV *fh;
	    STRLEN n_a;
	    if (!spec || !*spec) {
	       SETERRNO(EINVAL,LIB$_INVARG);
	       XSRETURN_UNDEF;
	    }
	    if (items > 11) croak("too many args");
	    myargc = items - 3;
	    for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+3),n_a);
	    /* More fun with C calls; can't combine with above because
	       args 2,3 of different types in fopen() and open() */
	    switch (myargc) {
	      case 0:
	        fd = open(spec,mode,perm);
	        break;
	      case 1:
	        fd = open(spec,mode,perm,args[0]);
	        break;
	      case 2:
	        fd = open(spec,mode,perm,args[0],args[1]);
	        break;
	      case 3:
	        fd = open(spec,mode,perm,args[0],args[1],args[2]);
	        break;
	      case 4:
	        fd = open(spec,mode,perm,args[0],args[1],args[2],args[3]);
	        break;
	      case 5:
	        fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4]);
	        break;
	      case 6:
	        fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5]);
	        break;
	      case 7:
	        fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
	        break;
	      case 8:
	        fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
	        break;
	    }
	    i = mode & 3;
	    if (fd >= 0 &&
	       ((fp = fdopen(fd, &("r\000w\000r+"[2*i]))) != Nullfp)) {
	      SV *fh = newFH(fp,"<>++"[i]);
	      ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
	    }
	    else { ST(0) = &PL_sv_undef; }

void
waitfh(fp)
	FILE *	fp
	PROTOTYPE: $
	CODE:
	    ST(0) = fwait(fp) ? &PL_sv_undef : &PL_sv_yes;

void
writeof(mysv)
	SV *	mysv
	PROTOTYPE: $
	CODE:
	    char devnam[257], *cp;
	    unsigned long int chan, iosb[2], retsts, retsts2;
	    struct dsc$descriptor devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, devnam};
	    IO *io = sv_2io(mysv);
	    FILE *fp = io ? IoOFP(io) : NULL;
	    if (fp == NULL || strchr(">was+-|",IoTYPE(io)) == Nullch) {
	      set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
	    }
	    if (fgetname(fp,devnam) == Nullch) { ST(0) = &PL_sv_undef; XSRETURN(1); }
	    if ((cp = strrchr(devnam,':')) != NULL) *(cp+1) = '\0';
	    devdsc.dsc$w_length = strlen(devnam);
	    retsts = sys$assign(&devdsc,&chan,0,0);
	    if (retsts & 1) retsts = sys$qiow(0,chan,IO$_WRITEOF,iosb,0,0,0,0,0,0,0,0);
	    if (retsts & 1) retsts = iosb[0];
	    retsts2 = sys$dassgn(chan);  /* Be sure to deassign the channel */
	    if (retsts & 1) retsts = retsts2;
	    if (retsts & 1) { ST(0) = &PL_sv_yes; }
	    else {
	      set_vaxc_errno(retsts);
	      switch (retsts) {
	        case SS$_EXQUOTA:  case SS$_INSFMEM:  case SS$_MBFULL:
	        case SS$_MBTOOSML: case SS$_NOIOCHAN: case SS$_NOLINKS:
	        case SS$_BUFFEROVF:
	          set_errno(ENOSPC); break;
	        case SS$_ILLIOFUNC: case SS$_DEVOFFLINE: case SS$_NOSUCHDEV:
	          set_errno(EBADF);  break;
	        case SS$_NOPRIV:
	          set_errno(EACCES); break;
	        default:  /* Includes "shouldn't happen" cases that might map */
	          set_errno(EVMSERR); break;         /* to other errno values */
	      }
	      ST(0) = &PL_sv_undef;
	    }
Commit	Line	Data
2ae00b68	1	/* VMS::Stdio - VMS extensions to stdio routines
748a9306	2	*
562a7b0c	3	* Version: 2.2
	4	* Author: Charles Bailey bailey@newman.upenn.edu
	5	* Revised: 18-Jul-1998
748a9306	6	*
748a9306	7	*/
	8
	9	#include "EXTERN.h"
	10	#include "perl.h"
	11	#include "XSUB.h"
2ae00b68	12	#include <file.h>
17f28c40	13	#include <iodef.h>
	14	#include <rms.h>
	15	#include <starlet.h>
2ae00b68	16
	17	static bool
	18	constant(name, pval)
	19	char *name;
	20	IV *pval;
	21	{
	22	if (strnNE(name, "O_", 2)) return FALSE;
	23
	24	if (strEQ(name, "O_APPEND"))
	25	#ifdef O_APPEND
	26	{ *pval = O_APPEND; return TRUE; }
	27	#else
	28	return FALSE;
	29	#endif
	30	if (strEQ(name, "O_CREAT"))
	31	#ifdef O_CREAT
	32	{ *pval = O_CREAT; return TRUE; }
	33	#else
	34	return FALSE;
	35	#endif
	36	if (strEQ(name, "O_EXCL"))
	37	#ifdef O_EXCL
	38	{ *pval = O_EXCL; return TRUE; }
	39	#else
	40	return FALSE;
	41	#endif
	42	if (strEQ(name, "O_NDELAY"))
	43	#ifdef O_NDELAY
	44	{ *pval = O_NDELAY; return TRUE; }
	45	#else
	46	return FALSE;
	47	#endif
	48	if (strEQ(name, "O_NOWAIT"))
	49	#ifdef O_NOWAIT
	50	{ *pval = O_NOWAIT; return TRUE; }
	51	#else
	52	return FALSE;
	53	#endif
	54	if (strEQ(name, "O_RDONLY"))
	55	#ifdef O_RDONLY
	56	{ *pval = O_RDONLY; return TRUE; }
	57	#else
	58	return FALSE;
	59	#endif
	60	if (strEQ(name, "O_RDWR"))
	61	#ifdef O_RDWR
	62	{ *pval = O_RDWR; return TRUE; }
	63	#else
	64	return FALSE;
	65	#endif
	66	if (strEQ(name, "O_TRUNC"))
	67	#ifdef O_TRUNC
	68	{ *pval = O_TRUNC; return TRUE; }
	69	#else
	70	return FALSE;
	71	#endif
	72	if (strEQ(name, "O_WRONLY"))
	73	#ifdef O_WRONLY
	74	{ *pval = O_WRONLY; return TRUE; }
	75	#else
	76	return FALSE;
	77	#endif
	78
	79	return FALSE;
80	}
748a9306	81
748a9306	82
2ae00b68	83	static SV *
2ae00b68	84	newFH(FILE *fp, char type) {
55497cff	85	SV *rv;
55497cff	86	GV *stashp, gv = (GV *)NEWSV(0,0);
2ae00b68	87	HV *stash;
	88	IO *io;
	89
ecbaadc1	90	dTHR;
2ae00b68	91	/* Find stash for VMS::Stdio. We don't do this once at boot
	92	* to allow for possibility of threaded Perl with per-thread
	93	* symbol tables. This code (through io = ...) is really
	94	* equivalent to gv_fetchpv("VMS::Stdio::__FH__",TRUE,SVt_PVIO),
	95	* with a little less overhead, and good exercise for me. :-) */
6b88bc9c	96	stashp = (GV **)hv_fetch(PL_defstash,"VMS::",5,TRUE);
6b88bc9c	97	if (!stashp \|\| stashp == (GV )&PL_sv_undef) return Nullsv;
2ae00b68	98	if (!(stash = GvHV(stashp))) stash = GvHV(stashp) = newHV();
2ae00b68	99	stashp = (GV *)hv_fetch(GvHV(stashp),"Stdio::",7,TRUE);
6b88bc9c	100	if (!stashp \|\| stashp == (GV )&PL_sv_undef) return Nullsv;
2ae00b68	101	if (!(stash = GvHV(stashp))) stash = GvHV(stashp) = newHV();
	102
	103	/* Set up GV to point to IO, and then take reference */
	104	gv_init(gv,stash,"__FH__",6,0);
	105	io = GvIOp(gv) = newIO();
	106	IoIFP(io) = fp;
5f05dabc	107	if (type != '<') IoOFP(io) = fp;
2ae00b68	108	IoTYPE(io) = type;
55497cff	109	rv = newRV((SV *)gv);
2ae00b68	110	SvREFCNT_dec(gv);
	111	return sv_bless(rv,stash);
	112	}
	113
	114	MODULE = VMS::Stdio PACKAGE = VMS::Stdio
748a9306	115
748a9306	116	void
2ae00b68	117	constant(name)
748a9306	118	char * name
2ae00b68	119	PROTOTYPE: $
	120	CODE:
	121	IV i;
	122	if (constant(name, &i))
	123	ST(0) = sv_2mortal(newSViv(i));
	124	else
6b88bc9c	125	ST(0) = &PL_sv_undef;
2ae00b68	126
2ae00b68	127	void
562a7b0c	128	binmode(fh)
	129	SV * fh
	130	PROTOTYPE: $
	131	CODE:
	132	IO *io = sv_2io(fh);
	133	FILE *fp = io ? IoOFP(io) : NULL;
	134	char iotype = io ? IoTYPE(io) : '\0';
	135	char filespec[NAM$C_MAXRSS], acmode, s, colon, dirend = Nullch;
	136	int ret = 0, saverrno = errno, savevmserrno = vaxc$errno;
	137	fpos_t pos;
	138	if (fp == NULL \|\| strchr(">was+-\|",iotype) == Nullch) {
	139	set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
	140	}
	141	if (!fgetname(fp,filespec)) XSRETURN_UNDEF;
	142	for (s = filespec; *s; s++) {
	143	if (*s == ':') colon = s;
	144	else if (s == ']' \|\| s == '>') dirend = s;
	145	}
	146	/* Looks like a tmpfile, which will go away if reopened */
	147	if (s == dirend + 3) {
	148	set_errno(EBADF); set_vaxc_errno(RMS$_IOP); XSRETURN_UNDEF;
	149	}
	150	/* If we've got a non-file-structured device, clip off the trailing
	151	* junk, and don't lose sleep if we can't get a stream position. */
	152	if (dirend == Nullch) *(colon+1) = '\0';
	153	if (iotype != '-' && (ret = fgetpos(fp, &pos)) == -1 && dirend)
	154	XSRETURN_UNDEF;
	155	switch (iotype) {
	156	case '<': case 'r': acmode = "rb"; break;
	157	case '>': case 'w': case '\|':
	158	/* use 'a' instead of 'w' to avoid creating new file;
	159	fsetpos below will take care of restoring file position */
	160	case 'a': acmode = "ab"; break;
	161	case '+': case 's': acmode = "rb+"; break;
	162	case '-': acmode = fileno(fp) ? "ab" : "rb"; break;
	163	/* iotype'll be null for the SYS$INPUT:/SYS$OUTPUT:/SYS$ERROR: files */
	164	/* since we didn't really open them and can't really */
	165	/* reopen them */
	166	case 0: XSRETURN_UNDEF;
	167	default:
	168	if (PL_dowarn) warn("Unrecognized iotype %c for %s in binmode",
	169	iotype, filespec);
	170	acmode = "rb+";
	171	}
	172	if (freopen(filespec,acmode,fp) == NULL) XSRETURN_UNDEF;
	173	if (iotype != '-' && ret != -1 && fsetpos(fp,&pos) == -1) XSRETURN_UNDEF;
	174	if (ret == -1) { set_errno(saverrno); set_vaxc_errno(savevmserrno); }
	175	XSRETURN_YES;
	176
	177
	178	void
17f28c40	179	flush(fp)
17f28c40	180	FILE * fp
2ae00b68	181	PROTOTYPE: $
2ae00b68	182	CODE:
6b88bc9c	183	if (fflush(fp)) { ST(0) = &PL_sv_undef; }
6b88bc9c	184	else { clearerr(fp); ST(0) = &PL_sv_yes; }
2ae00b68	185
	186	char *
	187	getname(fp)
	188	FILE * fp
	189	PROTOTYPE: $
	190	CODE:
17f28c40	191	char fname[NAM$C_MAXRSS+1];
2ae00b68	192	ST(0) = sv_newmortal();
	193	if (fgetname(fp,fname) != NULL) sv_setpv(ST(0),fname);
	194
	195	void
	196	rewind(fp)
	197	FILE * fp
	198	PROTOTYPE: $
	199	CODE:
6b88bc9c	200	ST(0) = rewind(fp) ? &PL_sv_undef : &PL_sv_yes;
2ae00b68	201
	202	void
	203	remove(name)
	204	char *name
	205	PROTOTYPE: $
	206	CODE:
6b88bc9c	207	ST(0) = remove(name) ? &PL_sv_undef : &PL_sv_yes;
2ae00b68	208
2ae00b68	209	void
17f28c40	210	setdef(...)
	211	PROTOTYPE: @
	212	CODE:
	213	char vmsdef[NAM$C_MAXRSS+1], es[NAM$C_MAXRSS], sep;
	214	unsigned long int retsts;
	215	struct FAB deffab = cc$rms_fab;
	216	struct NAM defnam = cc$rms_nam;
	217	struct dsc$descriptor_s dirdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
2d8e6c8d	218	STRLEN n_a;
17f28c40	219	if (items) {
17f28c40	220	SV defsv = ST(items-1); / mimic chdir() */
6b88bc9c	221	ST(0) = &PL_sv_undef;
17f28c40	222	if (!SvPOK(defsv)) { SETERRNO(EINVAL,LIB$_INVARG); XSRETURN(1); }
2d8e6c8d	223	if (tovmsspec(SvPV(defsv,n_a),vmsdef) == NULL) { XSRETURN(1); }
17f28c40	224	deffab.fab$l_fna = vmsdef; deffab.fab$b_fns = strlen(vmsdef);
	225	}
	226	else {
	227	deffab.fab$l_fna = "SYS$LOGIN"; deffab.fab$b_fns = 9;
6b88bc9c	228	EXTEND(sp,1); ST(0) = &PL_sv_undef;
17f28c40	229	}
	230	defnam.nam$l_esa = es; defnam.nam$b_ess = sizeof es;
	231	deffab.fab$l_nam = &defnam;
	232	retsts = sys$parse(&deffab,0,0);
	233	if (retsts & 1) {
	234	if (defnam.nam$v_wildcard) retsts = RMS$_WLD;
	235	else if (defnam.nam$b_name \|\| defnam.nam$b_type > 1 \|\|
	236	defnam.nam$b_ver > 1) retsts = RMS$_DIR;
	237	}
	238	defnam.nam$b_nop \|= NAM$M_SYNCHK; defnam.nam$l_rlf = NULL; deffab.fab$b_dns = 0;
	239	if (!(retsts & 1)) {
	240	set_vaxc_errno(retsts);
	241	switch (retsts) {
	242	case RMS$_DNF:
	243	set_errno(ENOENT); break;
	244	case RMS$_SYN: case RMS$_DIR: case RMS$_DEV:
	245	set_errno(EINVAL); break;
	246	case RMS$_PRV:
	247	set_errno(EACCES); break;
	248	default:
	249	set_errno(EVMSERR); break;
	250	}
	251	(void) sys$parse(&deffab,0,0); /* free up context */
	252	XSRETURN(1);
	253	}
	254	sep = *defnam.nam$l_dir;
	255	*defnam.nam$l_dir = '\0';
	256	my_setenv("SYS$DISK",defnam.nam$b_node ? defnam.nam$l_node : defnam.nam$l_dev);
	257	*defnam.nam$l_dir = sep;
	258	dirdsc.dsc$a_pointer = defnam.nam$l_dir; dirdsc.dsc$w_length = defnam.nam$b_dir;
6b88bc9c	259	if ((retsts = sys$setddir(&dirdsc,0,0)) & 1) ST(0) = &PL_sv_yes;
17f28c40	260	else { set_errno(EVMSERR); set_vaxc_errno(retsts); }
	261	(void) sys$parse(&deffab,0,0); /* free up context */
	262
	263	void
2ae00b68	264	sync(fp)
	265	FILE * fp
	266	PROTOTYPE: $
	267	CODE:
6b88bc9c	268	if (fsync(fileno(fp))) { ST(0) = &PL_sv_undef; }
6b88bc9c	269	else { clearerr(fp); ST(0) = &PL_sv_yes; }
2ae00b68	270
	271	char *
	272	tmpnam()
	273	PROTOTYPE:
	274	CODE:
	275	char fname[L_tmpnam];
	276	ST(0) = sv_newmortal();
	277	if (tmpnam(fname) != NULL) sv_setpv(ST(0),fname);
	278
	279	void
	280	vmsopen(spec,...)
	281	char * spec
	282	PROTOTYPE: @
748a9306	283	CODE:
2ae00b68	284	char *args[8],mode[3] = {'r','\0','\0'}, type = '<';
748a9306	285	register int i, myargc;
748a9306	286	FILE *fp;
2d8e6c8d	287	STRLEN n_a;
2ae00b68	288
	289	if (!spec \|\| !*spec) {
	290	SETERRNO(EINVAL,LIB$_INVARG);
	291	XSRETURN_UNDEF;
748a9306	292	}
2ae00b68	293	if (items > 9) croak("too many args");
2ae00b68	294
748a9306	295	/* First, set up name and mode args from perl's string */
2ae00b68	296	if (*spec == '+') {
748a9306	297	mode[1] = '+';
2ae00b68	298	spec++;
748a9306	299	}
2ae00b68	300	if (*spec == '>') {
	301	if ((spec+1) == '>') mode = 'a', spec += 2;
	302	else *mode = 'w', spec++;
748a9306	303	}
2ae00b68	304	else if (*spec == '<') spec++;
748a9306	305	myargc = items - 1;
2d8e6c8d	306	for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+1),n_a);
748a9306	307	/* This hack brought to you by C's opaque arglist management */
	308	switch (myargc) {
	309	case 0:
2ae00b68	310	fp = fopen(spec,mode);
748a9306	311	break;
748a9306	312	case 1:
2ae00b68	313	fp = fopen(spec,mode,args[0]);
748a9306	314	break;
748a9306	315	case 2:
2ae00b68	316	fp = fopen(spec,mode,args[0],args[1]);
748a9306	317	break;
748a9306	318	case 3:
2ae00b68	319	fp = fopen(spec,mode,args[0],args[1],args[2]);
748a9306	320	break;
748a9306	321	case 4:
2ae00b68	322	fp = fopen(spec,mode,args[0],args[1],args[2],args[3]);
748a9306	323	break;
748a9306	324	case 5:
2ae00b68	325	fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4]);
748a9306	326	break;
748a9306	327	case 6:
2ae00b68	328	fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5]);
748a9306	329	break;
748a9306	330	case 7:
2ae00b68	331	fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
748a9306	332	break;
748a9306	333	case 8:
2ae00b68	334	fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
748a9306	335	break;
748a9306	336	}
2ae00b68	337	if (fp != Nullfp) {
5f05dabc	338	SV *fh = newFH(fp,(mode[1] ? '+' : (mode[0] == 'r' ? '<' : (mode[0] == 'a' ? 'a' : '>'))));
6b88bc9c	339	ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
748a9306	340	}
6b88bc9c	341	else { ST(0) = &PL_sv_undef; }
748a9306	342
2ae00b68	343	void
	344	vmssysopen(spec,mode,perm,...)
	345	char * spec
	346	int mode
	347	int perm
	348	PROTOTYPE: @
748a9306	349	CODE:
2ae00b68	350	char *args[8];
	351	int i, myargc, fd;
	352	FILE *fp;
	353	SV *fh;
2d8e6c8d	354	STRLEN n_a;
2ae00b68	355	if (!spec \|\| !*spec) {
	356	SETERRNO(EINVAL,LIB$_INVARG);
	357	XSRETURN_UNDEF;
	358	}
	359	if (items > 11) croak("too many args");
	360	myargc = items - 3;
2d8e6c8d	361	for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+3),n_a);
2ae00b68	362	/* More fun with C calls; can't combine with above because
	363	args 2,3 of different types in fopen() and open() */
	364	switch (myargc) {
	365	case 0:
	366	fd = open(spec,mode,perm);
	367	break;
	368	case 1:
	369	fd = open(spec,mode,perm,args[0]);
	370	break;
	371	case 2:
	372	fd = open(spec,mode,perm,args[0],args[1]);
	373	break;
	374	case 3:
	375	fd = open(spec,mode,perm,args[0],args[1],args[2]);
	376	break;
	377	case 4:
	378	fd = open(spec,mode,perm,args[0],args[1],args[2],args[3]);
	379	break;
	380	case 5:
	381	fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4]);
	382	break;
	383	case 6:
	384	fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5]);
	385	break;
	386	case 7:
	387	fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
	388	break;
	389	case 8:
	390	fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
	391	break;
	392	}
	393	i = mode & 3;
	394	if (fd >= 0 &&
	395	((fp = fdopen(fd, &("r\000w\000r+"[2*i]))) != Nullfp)) {
	396	SV *fh = newFH(fp,"<>++"[i]);
6b88bc9c	397	ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
2ae00b68	398	}
6b88bc9c	399	else { ST(0) = &PL_sv_undef; }
748a9306	400
2ae00b68	401	void
	402	waitfh(fp)
	403	FILE * fp
	404	PROTOTYPE: $
748a9306	405	CODE:
6b88bc9c	406	ST(0) = fwait(fp) ? &PL_sv_undef : &PL_sv_yes;
17f28c40	407
	408	void
	409	writeof(mysv)
	410	SV * mysv
	411	PROTOTYPE: $
	412	CODE:
	413	char devnam[257], *cp;
	414	unsigned long int chan, iosb[2], retsts, retsts2;
	415	struct dsc$descriptor devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, devnam};
	416	IO *io = sv_2io(mysv);
	417	FILE *fp = io ? IoOFP(io) : NULL;
	418	if (fp == NULL \|\| strchr(">was+-\|",IoTYPE(io)) == Nullch) {
562a7b0c	419	set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
17f28c40	420	}
6b88bc9c	421	if (fgetname(fp,devnam) == Nullch) { ST(0) = &PL_sv_undef; XSRETURN(1); }
17f28c40	422	if ((cp = strrchr(devnam,':')) != NULL) *(cp+1) = '\0';
	423	devdsc.dsc$w_length = strlen(devnam);
	424	retsts = sys$assign(&devdsc,&chan,0,0);
	425	if (retsts & 1) retsts = sys$qiow(0,chan,IO$_WRITEOF,iosb,0,0,0,0,0,0,0,0);
	426	if (retsts & 1) retsts = iosb[0];
	427	retsts2 = sys$dassgn(chan); /* Be sure to deassign the channel */
	428	if (retsts & 1) retsts = retsts2;
6b88bc9c	429	if (retsts & 1) { ST(0) = &PL_sv_yes; }
17f28c40	430	else {
	431	set_vaxc_errno(retsts);
	432	switch (retsts) {
	433	case SS$_EXQUOTA: case SS$_INSFMEM: case SS$_MBFULL:
	434	case SS$_MBTOOSML: case SS$_NOIOCHAN: case SS$_NOLINKS:
	435	case SS$_BUFFEROVF:
	436	set_errno(ENOSPC); break;
	437	case SS$_ILLIOFUNC: case SS$_DEVOFFLINE: case SS$_NOSUCHDEV:
	438	set_errno(EBADF); break;
	439	case SS$_NOPRIV:
	440	set_errno(EACCES); break;
	441	default: /* Includes "shouldn't happen" cases that might map */
	442	set_errno(EVMSERR); break; /* to other errno values */
	443	}
6b88bc9c	444	ST(0) = &PL_sv_undef;
17f28c40	445	}