1 /* VMS::Stdio - VMS extensions to stdio routines
4 * Author: Charles Bailey bailey@newman.upenn.edu
22 if (strnNE(name, "O_", 2)) return FALSE;
24 if (strEQ(name, "O_APPEND"))
26 { *pval = O_APPEND; return TRUE; }
30 if (strEQ(name, "O_CREAT"))
32 { *pval = O_CREAT; return TRUE; }
36 if (strEQ(name, "O_EXCL"))
38 { *pval = O_EXCL; return TRUE; }
42 if (strEQ(name, "O_NDELAY"))
44 { *pval = O_NDELAY; return TRUE; }
48 if (strEQ(name, "O_NOWAIT"))
50 { *pval = O_NOWAIT; return TRUE; }
54 if (strEQ(name, "O_RDONLY"))
56 { *pval = O_RDONLY; return TRUE; }
60 if (strEQ(name, "O_RDWR"))
62 { *pval = O_RDWR; return TRUE; }
66 if (strEQ(name, "O_TRUNC"))
68 { *pval = O_TRUNC; return TRUE; }
72 if (strEQ(name, "O_WRONLY"))
74 { *pval = O_WRONLY; return TRUE; }
84 newFH(FILE *fp, char type) {
86 GV **stashp, *gv = (GV *)NEWSV(0,0);
90 /* Find stash for VMS::Stdio. We don't do this once at boot
91 * to allow for possibility of threaded Perl with per-thread
92 * symbol tables. This code (through io = ...) is really
93 * equivalent to gv_fetchpv("VMS::Stdio::__FH__",TRUE,SVt_PVIO),
94 * with a little less overhead, and good exercise for me. :-) */
95 stashp = (GV **)hv_fetch(PL_defstash,"VMS::",5,TRUE);
96 if (!stashp || *stashp == (GV *)&PL_sv_undef) return Nullsv;
97 if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();
98 stashp = (GV **)hv_fetch(GvHV(*stashp),"Stdio::",7,TRUE);
99 if (!stashp || *stashp == (GV *)&PL_sv_undef) return Nullsv;
100 if (!(stash = GvHV(*stashp))) stash = GvHV(*stashp) = newHV();
102 /* Set up GV to point to IO, and then take reference */
103 gv_init(gv,stash,"__FH__",6,0);
104 io = GvIOp(gv) = newIO();
106 if (type != '<') IoOFP(io) = fp;
108 rv = newRV((SV *)gv);
110 return sv_bless(rv,stash);
113 MODULE = VMS::Stdio PACKAGE = VMS::Stdio
121 if (constant(name, &i))
122 ST(0) = sv_2mortal(newSViv(i));
124 ST(0) = &PL_sv_undef;
132 FILE *fp = io ? IoOFP(io) : NULL;
133 char iotype = io ? IoTYPE(io) : '\0';
134 char filespec[NAM$C_MAXRSS], *acmode, *s, *colon, *dirend = Nullch;
135 int ret = 0, saverrno = errno, savevmserrno = vaxc$errno;
137 if (fp == NULL || strchr(">was+-|",iotype) == Nullch) {
138 set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
140 if (!fgetname(fp,filespec)) XSRETURN_UNDEF;
141 for (s = filespec; *s; s++) {
142 if (*s == ':') colon = s;
143 else if (*s == ']' || *s == '>') dirend = s;
145 /* Looks like a tmpfile, which will go away if reopened */
146 if (s == dirend + 3) {
147 set_errno(EBADF); set_vaxc_errno(RMS$_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 == Nullch) *(colon+1) = '\0';
152 if (iotype != '-' && (ret = fgetpos(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 = fileno(fp) ? "ab" : "rb"; break;
162 /* iotype'll be null for the SYS$INPUT:/SYS$OUTPUT:/SYS$ERROR: files */
163 /* since we didn't really open them and can't really */
165 case 0: XSRETURN_UNDEF;
167 if (PL_dowarn) warn("Unrecognized iotype %c for %s in binmode",
171 if (freopen(filespec,acmode,fp) == NULL) XSRETURN_UNDEF;
172 if (iotype != '-' && ret != -1 && fsetpos(fp,&pos) == -1) XSRETURN_UNDEF;
173 if (ret == -1) { set_errno(saverrno); set_vaxc_errno(savevmserrno); }
182 if (fflush(fp)) { ST(0) = &PL_sv_undef; }
183 else { clearerr(fp); ST(0) = &PL_sv_yes; }
190 char fname[NAM$C_MAXRSS+1];
191 ST(0) = sv_newmortal();
192 if (fgetname(fp,fname) != NULL) sv_setpv(ST(0),fname);
199 ST(0) = rewind(fp) ? &PL_sv_undef : &PL_sv_yes;
206 ST(0) = remove(name) ? &PL_sv_undef : &PL_sv_yes;
212 char vmsdef[NAM$C_MAXRSS+1], es[NAM$C_MAXRSS], sep;
213 unsigned long int retsts;
214 struct FAB deffab = cc$rms_fab;
215 struct NAM defnam = cc$rms_nam;
216 struct dsc$descriptor_s dirdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
219 SV *defsv = ST(items-1); /* mimic chdir() */
220 ST(0) = &PL_sv_undef;
221 if (!SvPOK(defsv)) { SETERRNO(EINVAL,LIB$_INVARG); XSRETURN(1); }
222 if (tovmsspec(SvPV(defsv,n_a),vmsdef) == NULL) { XSRETURN(1); }
223 deffab.fab$l_fna = vmsdef; deffab.fab$b_fns = strlen(vmsdef);
226 deffab.fab$l_fna = "SYS$LOGIN"; deffab.fab$b_fns = 9;
227 EXTEND(sp,1); ST(0) = &PL_sv_undef;
229 defnam.nam$l_esa = es; defnam.nam$b_ess = sizeof es;
230 deffab.fab$l_nam = &defnam;
231 retsts = sys$parse(&deffab,0,0);
233 if (defnam.nam$v_wildcard) retsts = RMS$_WLD;
234 else if (defnam.nam$b_name || defnam.nam$b_type > 1 ||
235 defnam.nam$b_ver > 1) retsts = RMS$_DIR;
237 defnam.nam$b_nop |= NAM$M_SYNCHK; defnam.nam$l_rlf = NULL; deffab.fab$b_dns = 0;
239 set_vaxc_errno(retsts);
242 set_errno(ENOENT); break;
243 case RMS$_SYN: case RMS$_DIR: case RMS$_DEV:
244 set_errno(EINVAL); break;
246 set_errno(EACCES); break;
248 set_errno(EVMSERR); break;
250 (void) sys$parse(&deffab,0,0); /* free up context */
253 sep = *defnam.nam$l_dir;
254 *defnam.nam$l_dir = '\0';
255 my_setenv("SYS$DISK",defnam.nam$b_node ? defnam.nam$l_node : defnam.nam$l_dev);
256 *defnam.nam$l_dir = sep;
257 dirdsc.dsc$a_pointer = defnam.nam$l_dir; dirdsc.dsc$w_length = defnam.nam$b_dir;
258 if ((retsts = sys$setddir(&dirdsc,0,0)) & 1) ST(0) = &PL_sv_yes;
259 else { set_errno(EVMSERR); set_vaxc_errno(retsts); }
260 (void) sys$parse(&deffab,0,0); /* free up context */
267 if (fsync(fileno(fp))) { ST(0) = &PL_sv_undef; }
268 else { clearerr(fp); ST(0) = &PL_sv_yes; }
274 char fname[L_tmpnam];
275 ST(0) = sv_newmortal();
276 if (tmpnam(fname) != NULL) sv_setpv(ST(0),fname);
283 char *args[8],mode[3] = {'r','\0','\0'}, type = '<';
284 register int i, myargc;
288 if (!spec || !*spec) {
289 SETERRNO(EINVAL,LIB$_INVARG);
292 if (items > 9) croak("too many args");
294 /* First, set up name and mode args from perl's string */
300 if (*(spec+1) == '>') *mode = 'a', spec += 2;
301 else *mode = 'w', spec++;
303 else if (*spec == '<') spec++;
305 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+1),n_a);
306 /* This hack brought to you by C's opaque arglist management */
309 fp = fopen(spec,mode);
312 fp = fopen(spec,mode,args[0]);
315 fp = fopen(spec,mode,args[0],args[1]);
318 fp = fopen(spec,mode,args[0],args[1],args[2]);
321 fp = fopen(spec,mode,args[0],args[1],args[2],args[3]);
324 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4]);
327 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5]);
330 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
333 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
337 SV *fh = newFH(fp,(mode[1] ? '+' : (mode[0] == 'r' ? '<' : (mode[0] == 'a' ? 'a' : '>'))));
338 ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
340 else { ST(0) = &PL_sv_undef; }
343 vmssysopen(spec,mode,perm,...)
354 if (!spec || !*spec) {
355 SETERRNO(EINVAL,LIB$_INVARG);
358 if (items > 11) croak("too many args");
360 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+3),n_a);
361 /* More fun with C calls; can't combine with above because
362 args 2,3 of different types in fopen() and open() */
365 fd = open(spec,mode,perm);
368 fd = open(spec,mode,perm,args[0]);
371 fd = open(spec,mode,perm,args[0],args[1]);
374 fd = open(spec,mode,perm,args[0],args[1],args[2]);
377 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3]);
380 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4]);
383 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5]);
386 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
389 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
394 ((fp = fdopen(fd, &("r\000w\000r+"[2*i]))) != Nullfp)) {
395 SV *fh = newFH(fp,"<>++"[i]);
396 ST(0) = (fh ? sv_2mortal(fh) : &PL_sv_undef);
398 else { ST(0) = &PL_sv_undef; }
405 ST(0) = fwait(fp) ? &PL_sv_undef : &PL_sv_yes;
412 char devnam[257], *cp;
413 unsigned long int chan, iosb[2], retsts, retsts2;
414 struct dsc$descriptor devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, devnam};
415 IO *io = sv_2io(mysv);
416 FILE *fp = io ? IoOFP(io) : NULL;
417 if (fp == NULL || strchr(">was+-|",IoTYPE(io)) == Nullch) {
418 set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN); XSRETURN_UNDEF;
420 if (fgetname(fp,devnam) == Nullch) { ST(0) = &PL_sv_undef; XSRETURN(1); }
421 if ((cp = strrchr(devnam,':')) != NULL) *(cp+1) = '\0';
422 devdsc.dsc$w_length = strlen(devnam);
423 retsts = sys$assign(&devdsc,&chan,0,0);
424 if (retsts & 1) retsts = sys$qiow(0,chan,IO$_WRITEOF,iosb,0,0,0,0,0,0,0,0);
425 if (retsts & 1) retsts = iosb[0];
426 retsts2 = sys$dassgn(chan); /* Be sure to deassign the channel */
427 if (retsts & 1) retsts = retsts2;
428 if (retsts & 1) { ST(0) = &PL_sv_yes; }
430 set_vaxc_errno(retsts);
432 case SS$_EXQUOTA: case SS$_INSFMEM: case SS$_MBFULL:
433 case SS$_MBTOOSML: case SS$_NOIOCHAN: case SS$_NOLINKS:
435 set_errno(ENOSPC); break;
436 case SS$_ILLIOFUNC: case SS$_DEVOFFLINE: case SS$_NOSUCHDEV:
437 set_errno(EBADF); break;
439 set_errno(EACCES); break;
440 default: /* Includes "shouldn't happen" cases that might map */
441 set_errno(EVMSERR); break; /* to other errno values */
443 ST(0) = &PL_sv_undef;