X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doio.c;h=fd40ae08fcf490d48cb2015beb009053a6721d2e;hb=2e117952781c322d29321f4d0b7193f45488d1cb;hp=89df5daa58eaa622fc318c40724d3c72df34c4c8;hpb=6e60e805618a52942747f76233ecc85135a964e3;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/doio.c b/doio.c
index 89df5da..fd40ae0 100644
--- a/doio.c
+++ b/doio.c
@@ -68,28 +68,6 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 		    supplied_fp, &svs, 1);
 }
 
-static char *S_layers(pTHX_ char *mode);
-
-static char *
-S_layers(pTHX_ char *mode)
-{
-    char *type = NULL;
-     /* Need to supply default layer info from open.pm */
-    SV *layers = PL_curcop->cop_io;
-    if (layers) {
-        STRLEN len;
-        type = SvPV(layers,len);
-        if (type && mode[0] != 'r') {
-	    /* Skip to write part */
-	    char *s = strchr(type,0);
-	    if (s && (s-type) < len) {
-		type = s+1;
-	    }
-        }
-    }
-   return type;
-}
-
 bool
 Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	      int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp,
@@ -214,7 +192,8 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	namesv = sv_2mortal(newSVpvn(name,strlen(name)));
 	num_svs = 1;
 	svp = &namesv;
-	fp = PerlIO_openn(aTHX_ S_layers(aTHX_ mode),mode, -1, rawmode, rawperm, NULL, num_svs, svp);
+        type = Nullch;
+	fp = PerlIO_openn(aTHX_ type,mode, -1, rawmode, rawperm, NULL, num_svs, svp);
     }
     else {
 	/* Regular (non-sys) open */
@@ -231,8 +210,8 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	    *tend-- = '\0';
 	if (num_svs) {
 	    /* New style explict name, type is just mode and discipline/layer info */
-	    STRLEN l;
-	    name = SvPV(*svp, l) ;
+	    STRLEN l = 0;
+	    name = SvOK(*svp) ? SvPV(*svp, l) : "";
 	    len = (I32)l;
 	    name = savepvn(name, len);
 	    SAVEFREEPV(name);
@@ -391,7 +370,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 		    else
 			was_fdopen = TRUE;
 		    if (!num_svs)
-			type = S_layers(aTHX_ mode);
+			type = Nullch;
 		    if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) {
 			if (dodup)
 			    PerlLIO_close(fd);
@@ -415,7 +394,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 			namesv = sv_2mortal(newSVpvn(type,strlen(type)));
 			num_svs = 1;
 			svp = &namesv;
-		        type = S_layers(aTHX_ mode);
+		        type = Nullch;
 		    }
 		    fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
 		}
@@ -447,7 +426,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 		    namesv = sv_2mortal(newSVpvn(type,strlen(type)));
 		    num_svs = 1;
 		    svp = &namesv;
-		    type = S_layers(aTHX_ mode);
+		    type = Nullch;
 		}
 		fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
 	    }
@@ -510,7 +489,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 		    namesv = sv_2mortal(newSVpvn(type,strlen(type)));
 		    num_svs = 1;
 		    svp = &namesv;
-		    type = S_layers(aTHX_ mode);
+		    type = Nullch;
 		}
 		fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp);
 	    }
@@ -525,15 +504,19 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
     if (ckWARN(WARN_IO)) {
 	if ((IoTYPE(io) == IoTYPE_RDONLY) &&
 	    (fp == PerlIO_stdout() || fp == PerlIO_stderr())) {
-		Perl_warner(aTHX_ WARN_IO, "'std%s' opened only for input",
-				(fp == PerlIO_stdout()) ? "out" : "err");
+		Perl_warner(aTHX_ WARN_IO,
+			    "Filehandle STD%s opened only for input",
+			    (fp == PerlIO_stdout()) ? "OUT" : "ERR");
 	}
 	else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) {
-		Perl_warner(aTHX_ WARN_IO, "'stdin' opened only for output");
+		Perl_warner(aTHX_ WARN_IO,
+			    "Filehandle STDIN opened only for output");
 	}
     }
 
-    if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD) {
+    if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD &&
+	/* FIXME: This next term is a hack to avoid fileno on PerlIO::Scalar */
+	!(num_svs && SvROK(*svp))) {
 	if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) {
 	    (void)PerlIO_close(fp);
 	    goto say_false;
@@ -574,13 +557,16 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	if (savefd != fd) {
 	    Pid_t pid;
 	    SV *sv;
-	    PerlLIO_dup2(fd, savefd);
+	    if (PerlLIO_dup2(fd, savefd) < 0) {
+		(void)PerlIO_close(fp);
+		goto say_false;
+	    }
 #ifdef VMS
 	    if (savefd != PerlIO_fileno(PerlIO_stdin())) {
 	      char newname[FILENAME_MAX+1];
 	      if (fgetname(fp, newname)) {
-	        if (savefd == PerlIO_fileno(PerlIO_stdout())) Perl_vmssetuserlnm("SYS$OUTPUT", newname);
-	        if (savefd == PerlIO_fileno(PerlIO_stderr())) Perl_vmssetuserlnm("SYS$ERROR",  newname);
+ 	        if (fd == PerlIO_fileno(PerlIO_stdout())) Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname);
+ 	        if (fd == PerlIO_fileno(PerlIO_stderr())) Perl_vmssetuserlnm(aTHX_ "SYS$ERROR",  newname);
 	      }
 	    }
 #endif
@@ -614,7 +600,7 @@ Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	if (IoTYPE(io) == IoTYPE_SOCKET
 	    || (IoTYPE(io) == IoTYPE_WRONLY && S_ISCHR(PL_statbuf.st_mode)) ) {
 	    mode[0] = 'w';
-	    if (!(IoOFP(io) = PerlIO_openn(aTHX_ S_layers(aTHX_ mode),mode,PerlIO_fileno(fp),0,0,NULL,num_svs,svp))) {
+	    if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,PerlIO_fileno(fp),0,0,NULL,num_svs,svp))) {
 		PerlIO_close(fp);
 		IoIFP(io) = Nullfp;
 		goto say_false;
@@ -1223,8 +1209,11 @@ Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
 	    if (!SvUTF8(sv))
 		sv_utf8_upgrade(sv = sv_mortalcopy(sv));
 	}
-	else if (DO_UTF8(sv))
-	    sv_utf8_downgrade((sv = sv_mortalcopy(sv)), FALSE);
+	else if (DO_UTF8(sv)) {
+	    if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)) {
+		Perl_warner(aTHX_ WARN_UTF8, "Wide character in print");
+	    }
+	}
 	tmps = SvPV(sv, len);
 	break;
     }