1 /* VMS::Stdio - VMS extensions to stdio routines
4 * Author: Charles Bailey bailey@genetics.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(defstash,"VMS::",5,TRUE);
96 if (!stashp || *stashp == (GV *)&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 *)&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));
131 if (fflush(fp)) { ST(0) = &sv_undef; }
132 else { clearerr(fp); ST(0) = &sv_yes; }
139 char fname[NAM$C_MAXRSS+1];
140 ST(0) = sv_newmortal();
141 if (fgetname(fp,fname) != NULL) sv_setpv(ST(0),fname);
148 ST(0) = rewind(fp) ? &sv_undef : &sv_yes;
155 ST(0) = remove(name) ? &sv_undef : &sv_yes;
161 char vmsdef[NAM$C_MAXRSS+1], es[NAM$C_MAXRSS], sep;
162 unsigned long int retsts;
163 struct FAB deffab = cc$rms_fab;
164 struct NAM defnam = cc$rms_nam;
165 struct dsc$descriptor_s dirdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
167 SV *defsv = ST(items-1); /* mimic chdir() */
169 if (!SvPOK(defsv)) { SETERRNO(EINVAL,LIB$_INVARG); XSRETURN(1); }
170 if (tovmsspec(SvPV(defsv,na),vmsdef) == NULL) { XSRETURN(1); }
171 deffab.fab$l_fna = vmsdef; deffab.fab$b_fns = strlen(vmsdef);
174 deffab.fab$l_fna = "SYS$LOGIN"; deffab.fab$b_fns = 9;
175 EXTEND(sp,1); ST(0) = &sv_undef;
177 defnam.nam$l_esa = es; defnam.nam$b_ess = sizeof es;
178 deffab.fab$l_nam = &defnam;
179 retsts = sys$parse(&deffab,0,0);
181 if (defnam.nam$v_wildcard) retsts = RMS$_WLD;
182 else if (defnam.nam$b_name || defnam.nam$b_type > 1 ||
183 defnam.nam$b_ver > 1) retsts = RMS$_DIR;
185 defnam.nam$b_nop |= NAM$M_SYNCHK; defnam.nam$l_rlf = NULL; deffab.fab$b_dns = 0;
187 set_vaxc_errno(retsts);
190 set_errno(ENOENT); break;
191 case RMS$_SYN: case RMS$_DIR: case RMS$_DEV:
192 set_errno(EINVAL); break;
194 set_errno(EACCES); break;
196 set_errno(EVMSERR); break;
198 (void) sys$parse(&deffab,0,0); /* free up context */
201 sep = *defnam.nam$l_dir;
202 *defnam.nam$l_dir = '\0';
203 my_setenv("SYS$DISK",defnam.nam$b_node ? defnam.nam$l_node : defnam.nam$l_dev);
204 *defnam.nam$l_dir = sep;
205 dirdsc.dsc$a_pointer = defnam.nam$l_dir; dirdsc.dsc$w_length = defnam.nam$b_dir;
206 if ((retsts = sys$setddir(&dirdsc,0,0)) & 1) ST(0) = &sv_yes;
207 else { set_errno(EVMSERR); set_vaxc_errno(retsts); }
208 (void) sys$parse(&deffab,0,0); /* free up context */
215 if (fsync(fileno(fp))) { ST(0) = &sv_undef; }
216 else { clearerr(fp); ST(0) = &sv_yes; }
222 char fname[L_tmpnam];
223 ST(0) = sv_newmortal();
224 if (tmpnam(fname) != NULL) sv_setpv(ST(0),fname);
231 char *args[8],mode[3] = {'r','\0','\0'}, type = '<';
232 register int i, myargc;
235 if (!spec || !*spec) {
236 SETERRNO(EINVAL,LIB$_INVARG);
239 if (items > 9) croak("too many args");
241 /* First, set up name and mode args from perl's string */
247 if (*(spec+1) == '>') *mode = 'a', spec += 2;
248 else *mode = 'w', spec++;
250 else if (*spec == '<') spec++;
252 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+1),na);
253 /* This hack brought to you by C's opaque arglist management */
256 fp = fopen(spec,mode);
259 fp = fopen(spec,mode,args[0]);
262 fp = fopen(spec,mode,args[0],args[1]);
265 fp = fopen(spec,mode,args[0],args[1],args[2]);
268 fp = fopen(spec,mode,args[0],args[1],args[2],args[3]);
271 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4]);
274 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5]);
277 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
280 fp = fopen(spec,mode,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
284 SV *fh = newFH(fp,(mode[1] ? '+' : (mode[0] == 'r' ? '<' : (mode[0] == 'a' ? 'a' : '>'))));
285 ST(0) = (fh ? sv_2mortal(fh) : &sv_undef);
287 else { ST(0) = &sv_undef; }
290 vmssysopen(spec,mode,perm,...)
300 if (!spec || !*spec) {
301 SETERRNO(EINVAL,LIB$_INVARG);
304 if (items > 11) croak("too many args");
306 for (i = 0; i < myargc; i++) args[i] = SvPV(ST(i+3),na);
307 /* More fun with C calls; can't combine with above because
308 args 2,3 of different types in fopen() and open() */
311 fd = open(spec,mode,perm);
314 fd = open(spec,mode,perm,args[0]);
317 fd = open(spec,mode,perm,args[0],args[1]);
320 fd = open(spec,mode,perm,args[0],args[1],args[2]);
323 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3]);
326 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4]);
329 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5]);
332 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
335 fd = open(spec,mode,perm,args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
340 ((fp = fdopen(fd, &("r\000w\000r+"[2*i]))) != Nullfp)) {
341 SV *fh = newFH(fp,"<>++"[i]);
342 ST(0) = (fh ? sv_2mortal(fh) : &sv_undef);
344 else { ST(0) = &sv_undef; }
351 ST(0) = fwait(fp) ? &sv_undef : &sv_yes;
358 char devnam[257], *cp;
359 unsigned long int chan, iosb[2], retsts, retsts2;
360 struct dsc$descriptor devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, devnam};
361 IO *io = sv_2io(mysv);
362 FILE *fp = io ? IoOFP(io) : NULL;
363 if (fp == NULL || strchr(">was+-|",IoTYPE(io)) == Nullch) {
364 set_errno(EBADF); set_vaxc_errno(SS$_IVCHAN);
365 ST(0) = &sv_undef; XSRETURN(1);
367 if (fgetname(fp,devnam) == Nullch) { ST(0) = &sv_undef; XSRETURN(1); }
368 if ((cp = strrchr(devnam,':')) != NULL) *(cp+1) = '\0';
369 devdsc.dsc$w_length = strlen(devnam);
370 retsts = sys$assign(&devdsc,&chan,0,0);
371 if (retsts & 1) retsts = sys$qiow(0,chan,IO$_WRITEOF,iosb,0,0,0,0,0,0,0,0);
372 if (retsts & 1) retsts = iosb[0];
373 retsts2 = sys$dassgn(chan); /* Be sure to deassign the channel */
374 if (retsts & 1) retsts = retsts2;
375 if (retsts & 1) { ST(0) = &sv_yes; }
377 set_vaxc_errno(retsts);
379 case SS$_EXQUOTA: case SS$_INSFMEM: case SS$_MBFULL:
380 case SS$_MBTOOSML: case SS$_NOIOCHAN: case SS$_NOLINKS:
382 set_errno(ENOSPC); break;
383 case SS$_ILLIOFUNC: case SS$_DEVOFFLINE: case SS$_NOSUCHDEV:
384 set_errno(EBADF); break;
386 set_errno(EACCES); break;
387 default: /* Includes "shouldn't happen" cases that might map */
388 set_errno(EVMSERR); break; /* to other errno values */