X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doio.c;h=d0a770461ea495cde4755cd1a98e96812b901629;hb=615ca1f4b324668b4e43c78582c0e6ee98d592fa;hp=4a255b2c5b9c55e8308ec995b0adf0458779ca45;hpb=a52cb5f71fdb108349442902e9c003c02608aae2;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/doio.c b/doio.c
index 4a255b2..d0a7704 100644
--- a/doio.c
+++ b/doio.c
@@ -1,6 +1,6 @@
 /*    doio.c
  *
- *    Copyright (c) 1991-1999, Larry Wall
+ *    Copyright (c) 1991-2000, Larry Wall
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -41,12 +41,6 @@
 #  endif
 #endif
 
-#ifdef I_FCNTL
-#include <fcntl.h>
-#endif
-#ifdef I_SYS_FILE
-#include <sys/file.h>
-#endif
 #ifdef O_EXCL
 #  define OPEN_EXCL O_EXCL
 #else
@@ -77,15 +71,6 @@
 # endif
 #endif
 
-/* Put this after #includes because <unistd.h> defines _XOPEN_*. */
-#ifndef Sock_size_t
-#  if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__)
-#    define Sock_size_t Size_t
-#  else
-#    define Sock_size_t int
-#  endif
-#endif
-
 bool
 Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	     int rawmode, int rawperm, PerlIO *supplied_fp)
@@ -183,28 +168,29 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	}
     }
     else {
-	char *myname;
-	char *type = name;
-	char *otype = name;
+	char *type;
+	char *oname = name;
 	STRLEN tlen;
-	STRLEN otlen = len;
+	STRLEN olen = len;
 	char mode[3];		/* stdio file mode ("r\0" or "r+\0") */
 	int dodup;
 
+	type = savepvn(name, len);
+	tlen = len;
+	SAVEFREEPV(type);
 	if (num_svs) {
-	    type = name;
-	    name = SvPV(svs, tlen) ;
-	    len = (I32)tlen;
+	    STRLEN l;
+	    name = SvPV(svs, l) ;
+	    len = (I32)l;
+	    name = savepvn(name, len);
+	    SAVEFREEPV(name);
 	}
-
-	tlen = otlen;
-	myname = savepvn(name, len);
-	SAVEFREEPV(myname);
-	name = myname;
-	if (!num_svs)
+	else {
 	    while (tlen && isSPACE(type[tlen-1]))
 		type[--tlen] = '\0';
-
+	    name = type;
+	    len = tlen;
+	}
 	mode[0] = mode[1] = mode[2] = '\0';
 	IoTYPE(io) = *type;
 	if (*type == '+' && tlen > 1 && type[tlen-1] != '|') { /* scary */
@@ -216,12 +202,14 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	if (*type == '|') {
 	    if (num_svs && (tlen != 2 || type[1] != '-')) {
 	      unknown_desr:
-		Perl_croak(aTHX_ "Unknown open() mode '%.*s'", otlen, otype);
+		Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname);
 	    }
 	    /*SUPPRESS 530*/
-	    for (type++; isSPACE(*type); type++) ;
-	    if (!num_svs)
+	    for (type++, tlen--; isSPACE(*type); type++, tlen--) ;
+	    if (!num_svs) {
 		name = type;
+		len = tlen;
+	    }
 	    if (*name == '\0') { /* command is missing 19990114 */
 		dTHR;
 		if (ckWARN(WARN_PIPE))
@@ -232,11 +220,11 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 	    if (strNE(name,"-") || num_svs)
 		TAINT_ENV();
 	    TAINT_PROPER("piped open");
-	    if (name[strlen(name)-1] == '|') {
+	    if (name[len-1] == '|') {
 		dTHR;
-		name[strlen(name)-1] = '\0' ;
+		name[--len] = '\0' ;
 		if (ckWARN(WARN_PIPE))
-		    Perl_warner(aTHX_ WARN_PIPE, "Can't do bidirectional pipe");
+		    Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe");
 	    }
 	    fp = PerlProc_popen(name,"w");
 	    writing = 1;
@@ -308,7 +296,7 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
 		    if (!(fp = PerlIO_fdopen(fd,mode))) {
 			if (dodup)
 			    PerlLIO_close(fd);
-			}
+		    }
 		}
 	    }
 	    else {
@@ -452,6 +440,7 @@ Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw,
     }
 #endif
     IoIFP(io) = fp;
+    IoFLAGS(io) &= ~IOf_NOLINE;
     if (writing) {
 	dTHR;
 	if (IoTYPE(io) == 's'
@@ -569,7 +558,7 @@ Perl_nextargv(pTHX_ register GV *gv)
 		    }
 #endif
 #ifdef HAS_RENAME
-#if !defined(DOSISH) && !defined(CYGWIN)
+#if !defined(DOSISH) && !defined(__CYGWIN__)
 		    if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) {
 		        if (ckWARN_d(WARN_INPLACE))	
 			    Perl_warner(aTHX_ WARN_INPLACE, 
@@ -660,9 +649,9 @@ Perl_nextargv(pTHX_ register GV *gv)
 		if (!S_ISREG(PL_statbuf.st_mode))	
 		    Perl_warner(aTHX_ WARN_INPLACE,
 				"Can't do inplace edit: %s is not a regular file",
-				PL_oldname );
+				PL_oldname);
 		else
-		    Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s\n",
+		    Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s",
 				PL_oldname, Strerror(errno));
 	    }
 	}
@@ -1026,7 +1015,7 @@ Perl_do_print(pTHX_ register SV *sv, PerlIO *fp)
 	{
 	    dTHR;
 	    if (ckWARN(WARN_UNINITIALIZED))
-		Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+		report_uninit();
 	}
 	return TRUE;
     case SVt_IV:
@@ -1064,7 +1053,7 @@ Perl_my_stat(pTHX)
 
     if (PL_op->op_flags & OPf_REF) {
 	EXTEND(SP,1);
-	tmpgv = cGVOP;
+	tmpgv = cGVOP_gv;
       do_fstat:
 	io = GvIO(tmpgv);
 	if (io && IoIFP(io)) {
@@ -1117,7 +1106,7 @@ Perl_my_lstat(pTHX)
     STRLEN n_a;
     if (PL_op->op_flags & OPf_REF) {
 	EXTEND(SP,1);
-	if (cGVOP == PL_defgv) {
+	if (cGVOP_gv == PL_defgv) {
 	    if (PL_laststype != OP_LSTAT)
 		Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat");
 	    return PL_laststatval;
@@ -1253,7 +1242,7 @@ Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report)
     if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
 	goto doshell;
 
-    for (s = cmd; *s && isALPHA(*s); s++) ;	/* catch VAR=val gizmo */
+    for (s = cmd; *s && isALNUM(*s); s++) ;	/* catch VAR=val gizmo */
     if (*s == '=')
 	goto doshell;
 
@@ -1860,6 +1849,9 @@ Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
     if (shm == (char *)-1)	/* I hate System V IPC, I really do */
 	return -1;
     if (optype == OP_SHMREAD) {
+	/* suppress warning when reading into undef var (tchrist 3/Mar/00) */
+	if (! SvOK(mstr))
+	    sv_setpvn(mstr, "", 0);
 	SvPV_force(mstr, len);
 	mbuf = SvGROW(mstr, msize+1);