1 /* VMS::Stdio - VMS extensions to stdio routines
3 * Author: Charles Bailey bailey@newman.upenn.edu
16 constant(char *name, IV *pval)
18 if (strnNE(name, "O_", 2)) return FALSE;
20 if (strEQ(name, "O_APPEND"))
22 { *pval = O_APPEND; return TRUE; }
26 if (strEQ(name, "O_CREAT"))
28 { *pval = O_CREAT; return TRUE; }
32 if (strEQ(name, "O_EXCL"))
34 { *pval = O_EXCL; return TRUE; }
38 if (strEQ(name, "O_NDELAY"))
40 { *pval = O_NDELAY; return TRUE; }
44 if (strEQ(name, "O_NOWAIT"))
46 { *pval = O_NOWAIT; return TRUE; }
50 if (strEQ(name, "O_RDONLY"))
52 { *pval = O_RDONLY; return TRUE; }
56 if (strEQ(name, "O_RDWR"))
58 { *pval = O_RDWR; return TRUE; }
62 if (strEQ(name, "O_TRUNC"))
64 { *pval = O_TRUNC; return TRUE; }
68 if (strEQ(name, "O_WRONLY"))
70 { *pval = O_WRONLY; return TRUE; }
80 newFH(PerlIO *fp, char type) {
82 GV **stashp, *gv = (GV *)newSV(0);
86 /* Find stash for VMS::Stdio. We don't do this once at boot
87 * to allow for possibility of threaded Perl with per-thread
88 * symbol tables. This code (through io = ...) is really
89 * equivalent to gv_fetchpv("VMS::Stdio::__FH__",TRUE,SVt_PVIO),
90 * with a little less overhead, and good exercise for me. :-) */
91 stashp = (GV **)hv_fetch(PL_defstash,"VMS::",5,TRUE);
92 if (!stashp || *stashp == (GV *)&PL_sv_undef) return NULL;
93 if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();
94 stashp = (GV **)hv_fetch(GvHV(*stashp),"Stdio::",7,TRUE);
95 if (!stashp || *stashp == (GV *)&PL_sv_undef) return NULL;
96 if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();
98 /* Set up GV to point to IO, and then take reference */
99 gv_init(gv,stash,"__FH__",6,0);
100 io = GvIOp(gv) = newIO();
102 if (type != '<') IoOFP(io) = fp;
104 rv = newRV((SV *)gv);
106 return sv_bless(rv,stash);
109 MODULE = VMS::Stdio PACKAGE = VMS::Stdio
117 if (constant(name, &i))
118 ST(0) = sv_2mortal(newSViv(i));
120 ST(0) = &PL_sv_undef;
130 char filespec[NAM$C_MAXRSS], *acmode, *s, *colon, *dirend = NULL;
131 int ret = 0, saverrno = errno, savevmserrno = vaxc$errno;
135 fp = io ? IoOFP(io) : NULL;
136 iotype = io ? IoTYPE(io) : '\0';
137 if (fp == NULL || strchr(">was+-|",iotype) == NULL) {
138 set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
140 if (!PerlIO_getname(fp,filespec)) XSRETURN_UNDEF;
141 for (s = filespec; *s; s++) {
142 if (*s == ':') colon = s;
143 else if (*s == ']' || *s == '>') dirend = s;
145 /* Looks like a tmpfile, which will go away if reopened */
146 if (s == dirend + 3) {
147 set_errno(EBADF); set_vaxc_errno(RMS$_IOP); XSRETURN_UNDEF;
149 /* If we've got a non-file-structured device, clip off the trailing
150 * junk, and don't lose sleep if we can't get a stream position. */
151 if (dirend == NULL) *(colon+1) = '\0';
152 if (iotype != '-' && (ret = PerlIO_getpos(fp, &pos)) == -1 && dirend)
155 case '<': case 'r': acmode = "rb"; break;
156 case '>': case 'w': case '|':
157 /* use 'a' instead of 'w' to avoid creating new file;
158 fsetpos below will take care of restoring file position */
159 case 'a': acmode = "ab"; break;
160 case '+': case 's': acmode = "rb+"; break;
161 case '-': acmode = PerlIO_fileno(fp) ? "ab" : "rb"; break;
162 /* iotype'll be null for the SYS$INPUT:/SYS$OUTPUT:/SYS$ERROR: files */
163 /* since we didn't really open them and can't really */
165 case 0: XSRETURN_UNDEF;
167 if (PL_dowarn) warn("Unrecognized iotype %c for %s in binmode",
171 /* appearances to the contrary, this is an freopen substitute */
172 name = sv_2mortal(newSVpvn(filespec,strlen(filespec)));
173 if (PerlIO_openn(aTHX_ NULL,acmode,-1,0,0,fp,1,&name) == NULL) XSRETURN_UNDEF;
174 if (iotype != '-' && ret != -1 && PerlIO_setpos(fp,&pos) == -1) XSRETURN_UNDEF;
175 if (ret == -1) { set_errno(saverrno); set_vaxc_errno(savevmserrno); }
184 FILE *stdio = PerlIO_exportFILE(fp,0);
185 if (fflush(stdio)) { ST(0) = &PL_sv_undef; }
186 else { clearerr(stdio); ST(0) = &PL_sv_yes; }
187 PerlIO_releaseFILE(fp,stdio);
194 FILE *stdio = PerlIO_exportFILE(fp,0);
195 char fname[NAM$C_MAXRSS+1];
196 ST(0) = sv_newmortal();
197 if (fgetname(stdio,fname) != NULL) sv_setpv(ST(0),fname);
198 PerlIO_releaseFILE(fp,stdio);
205 FILE *stdio = PerlIO_exportFILE(fp,0);
206 ST(0) = rewind(stdio) ? &PL_sv_undef : &PL_sv_yes;
207 PerlIO_releaseFILE(fp,stdio);
214 ST(0) = remove(name) ? &PL_sv_undef : &PL_sv_yes;
220 char vmsdef[NAM$C_MAXRSS+1], es[NAM$C_MAXRSS], sep;
221 unsigned long int retsts;
222 struct FAB deffab = cc$rms_fab;
223 struct NAM defnam = cc$rms_nam;
224 struct dsc$descriptor_s dirdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
227 SV *defsv = ST(items-1); /* mimic chdir() */
228 ST(0) = &PL_sv_undef;
229 if (!SvPOK(defsv)) { SETERRNO(EINVAL,LIB$_INVARG); XSRETURN(1); }
230 if (tovmsspec(SvPV(defsv,n_a),vmsdef) == NULL) { XSRETURN(1); }
231 deffab.fab$l_fna = vmsdef; deffab.fab$b_fns = strlen(vmsdef);
234 deffab.fab$l_fna = "SYS$LOGIN"; deffab.fab$b_fns = 9;
235 EXTEND(sp,1); ST(0) = &PL_sv_undef;
237 defnam.nam$l_esa = es; defnam.nam$b_ess = sizeof es;
238 deffab.fab$l_nam = &defnam;
239 retsts = sys$parse(&deffab,0,0);
241 if (defnam.nam$v_wildcard) retsts = RMS$_WLD;
242 else if (defnam.nam$b_name || defnam.nam$b_type > 1 ||
243 defnam.nam$b_ver > 1) retsts = RMS$_DIR;
245 defnam.nam$b_nop |= NAM$M_SYNCHK; defnam.nam$l_rlf = NULL; deffab.fab$b_dns = 0;
247 set_vaxc_errno(retsts);
250 set_errno(ENOENT); break;
251 case RMS$_SYN: case RMS$_DIR: case RMS$_DEV:
252 set_errno(EINVAL); break;
254 set_errno(EACCES); break;
256 set_errno(EVMSERR); break;
258 (void) sys$parse(&deffab,0,0); /* free up context */
261 sep = *defnam.nam$l_dir;
262 *defnam.nam$l_dir = '\0';
263 my_setenv("SYS$DISK",defnam.nam$b_node ? defnam.nam$l_node : defnam.nam$l_dev);
264 *defnam.nam$l_dir = sep;
265 dirdsc.dsc$a_pointer = defnam.nam$l_dir; dirdsc.dsc$w_length = defnam.nam$b_dir;
266 if ((retsts = sys$setddir(&dirdsc,0,0)) & 1) ST(0) = &PL_sv_yes;
267 else { set_errno(EVMSERR); set_vaxc_errno(retsts); }
268 (void) sys$parse(&deffab,0,0); /* free up context */
275 FILE *stdio = PerlIO_exportFILE(fp,0);
276 if (fsync(fileno(stdio))) { ST(0) = &PL_sv_undef; }
277 else { clearerr(stdio); ST(0) = &PL_sv_yes; }
278 PerlIO_releaseFILE(fp,stdio);
284 char fname[L_tmpnam];
285 ST(0) = sv_newmortal();
286 if (tmpnam(fname) != NULL) sv_setpv(ST(0),fname);
293 char *args[8],mode[3] = {'r','\0','\0'}, type = '<';
300 if (!spec || !*spec) {
301 SETERRNO(EINVAL,LIB$_INVARG);
304 if (items > 9) croak("too many args");
306 /* First, set up name and mode args from perl's string */
312 if (*(spec+1) == '>') *mode = 'a', spec += 2;
313 else *mode = 'w', spec++;
315 else if (*spec == '<') spec++;
317 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+1),n_a);
318 /* This hack brought to you by C's opaque arglist management */
321 fp = fopen(spec,mode);
324 fp = fopen(spec,mode,args[0]);
327 fp = fopen(spec,mode,args[0],args[1]);
330 fp = fopen(spec,mode,args[0],args[1],args[2]);
333 fp = fopen(spec,mode,args[0],args[1],args[2],args[3]);
336 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4]);
339 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5]);
342 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
345 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
349 pio_fp = PerlIO_fdopen(fileno(fp),mode);
350 fh = newFH(pio_fp,(mode[1] ? '+' : (mode[0] == 'r' ? '<' : (mode[0] == 'a' ? 'a' : '>'))));
351 ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
353 else { ST(0) = &PL_sv_undef; }
356 vmssysopen(spec,mode,perm,...)
367 if (!spec || !*spec) {
368 SETERRNO(EINVAL,LIB$_INVARG);
371 if (items > 11) croak("too many args");
373 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+3),n_a);
374 /* More fun with C calls; can't combine with above because
375 args 2,3 of different types in fopen() and open() */
378 fd = open(spec,mode,perm);
381 fd = open(spec,mode,perm,args[0]);
384 fd = open(spec,mode,perm,args[0],args[1]);
387 fd = open(spec,mode,perm,args[0],args[1],args[2]);
390 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3]);
393 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4]);
396 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5]);
399 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
402 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
407 ((pio_fp = PerlIO_fdopen(fd, &("r\000w\000r+"[2*i]))) != NULL)) {
408 fh = newFH(pio_fp,"<>++"[i]);
409 ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
411 else { ST(0) = &PL_sv_undef; }
418 FILE *stdio = PerlIO_exportFILE(fp,0);
419 ST(0) = fwait(stdio) ? &PL_sv_undef : &PL_sv_yes;
420 PerlIO_releaseFILE(fp,stdio);
427 char devnam[257], *cp;
428 unsigned long int chan, iosb[2], retsts, retsts2;
429 struct dsc$descriptor devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, devnam};
430 IO *io = sv_2io(mysv);
431 PerlIO *fp = io ? IoOFP(io) : NULL;
432 if (fp == NULL || strchr(">was+-|",IoTYPE(io)) == NULL) {
433 set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
435 if (PerlIO_getname(fp,devnam) == NULL) { ST(0) = &PL_sv_undef; XSRETURN(1); }
436 if ((cp = strrchr(devnam,':')) != NULL) *(cp+1) = '\0';
437 devdsc.dsc$w_length = strlen(devnam);
438 retsts = sys$assign(&devdsc,&chan,0,0);
439 if (retsts & 1) retsts = sys$qiow(0,chan,IO$_WRITEOF,iosb,0,0,0,0,0,0,0,0);
440 if (retsts & 1) retsts = iosb[0];
441 retsts2 = sys$dassgn(chan); /* Be sure to deassign the channel */
442 if (retsts & 1) retsts = retsts2;
443 if (retsts & 1) { ST(0) = &PL_sv_yes; }
445 set_vaxc_errno(retsts);
447 case SS$_EXQUOTA: case SS$_INSFMEM: case SS$_MBFULL:
448 case SS$_MBTOOSML: case SS$_NOIOCHAN: case SS$_NOLINKS:
450 set_errno(ENOSPC); break;
451 case SS$_ILLIOFUNC: case SS$_DEVOFFLINE: case SS$_NOSUCHDEV:
452 set_errno(EBADF); break;
454 set_errno(EACCES); break;
455 default: /* Includes "shouldn't happen" cases that might map */
456 set_errno(EVMSERR); break; /* to other errno values */
458 ST(0) = &PL_sv_undef;