B::Deparse update from Stephen McCamant <smccam@uclink4.berkeley.edu>

[perl5.git] / pp_sys.c

diff --git a/pp_sys.c b/pp_sys.c
index 8fa38f2..00ee2b1 100644 (file)
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -1,6 +1,6 @@
 /*    pp_sys.c
  *
- *    Copyright (c) 1991-1997, Larry Wall
+ *    Copyright (c) 1991-1999, 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.
@@ -173,14 +173,6 @@ static int dooneliner _((char *cmd, char *filename));
 
 #endif /* no flock() */
 
-#ifndef MAXPATHLEN
-#  ifdef PATH_MAX
-#    define MAXPATHLEN PATH_MAX
-#  else
-#    define MAXPATHLEN 1024
-#  endif
-#endif
-
 #define ZBTLEN 10
 static char zero_but_true[ZBTLEN + 1] = "0 but true";
 
@@ -195,24 +187,32 @@ static char zero_but_true[ZBTLEN + 1] = "0 but true";
 /* F_OK unused: if stat() cannot find it... */
 
 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
-/* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
+    /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
 #   define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
 #   define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
 #   define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
 #endif
 
 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
-/* HP SecureWare */
 #   if defined(I_SYS_SECURITY)
 #       include <sys/security.h>
 #   endif
-#   define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
-#   define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
-#   define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
+    /* XXX Configure test needed for eaccess */
+#   ifdef ACC_SELF
+        /* HP SecureWare */
+#       define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
+#       define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
+#       define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
+#   else
+        /* SCO */
+#       define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
+#       define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
+#       define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
+#   endif
 #endif
 
 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
-/* AIX */
+    /* AIX */
 #   define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
 #   define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
 #   define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
@@ -298,7 +298,8 @@ PP(pp_backtick)
 {
     djSP; dTARGET;
     PerlIO *fp;
-    char *tmps = POPp;
+    STRLEN n_a;
+    char *tmps = POPpx;
     I32 gimme = GIMME_V;
 
     TAINT_PROPER("``");
@@ -384,7 +385,8 @@ PP(pp_glob)
 #if 0          /* XXX never used! */
 PP(pp_indread)
 {
-    PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), PL_na), TRUE,SVt_PVIO);
+    STRLEN n_a;
+    PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
     return do_readline();
 }
 #endif
@@ -399,21 +401,22 @@ PP(pp_warn)
 {
     djSP; dMARK;
     char *tmps;
+    STRLEN n_a;
     if (SP - MARK != 1) {
        dTARGET;
        do_join(TARG, &PL_sv_no, MARK, SP);
-       tmps = SvPV(TARG, PL_na);
+       tmps = SvPV(TARG, n_a);
        SP = MARK + 1;
     }
     else {
-       tmps = SvPV(TOPs, PL_na);
+       tmps = SvPV(TOPs, n_a);
     }
     if (!tmps || !*tmps) {
        SV *error = ERRSV;
        (void)SvUPGRADE(error, SVt_PV);
        if (SvPOK(error) && SvCUR(error))
            sv_catpv(error, "\t...caught");
-       tmps = SvPV(error, PL_na);
+       tmps = SvPV(error, n_a);
     }
     if (!tmps || !*tmps)
        tmps = "Warning: something's wrong";
@@ -427,15 +430,16 @@ PP(pp_die)
     char *tmps;
     SV *tmpsv = Nullsv;
     char *pat = "%s";
+    STRLEN n_a;
     if (SP - MARK != 1) {
        dTARGET;
        do_join(TARG, &PL_sv_no, MARK, SP);
-       tmps = SvPV(TARG, PL_na);
+       tmps = SvPV(TARG, n_a);
        SP = MARK + 1;
     }
     else {
        tmpsv = TOPs;
-       tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, PL_na);
+       tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, n_a);
     }
     if (!tmps || !*tmps) {
        SV *error = ERRSV;
@@ -465,7 +469,7 @@ PP(pp_die)
        else {
            if (SvPOK(error) && SvCUR(error))
                sv_catpv(error, "\t...propagated");
-           tmps = SvPV(error, PL_na);
+           tmps = SvPV(error, n_a);
        }
     }
     if (!tmps || !*tmps)
@@ -660,6 +664,7 @@ PP(pp_tie)
     char *methname;
     int how = 'P';
     U32 items;
+    STRLEN n_a;
 
     varsv = *++MARK;
     switch(SvTYPE(varsv)) {
@@ -696,7 +701,7 @@ PP(pp_tie)
        stash = gv_stashsv(*MARK, FALSE);
        if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
            DIE("Can't locate object method \"%s\" via package \"%s\"",
-                methname, SvPV(*MARK,PL_na));                   
+                methname, SvPV(*MARK,n_a));                   
        }
        ENTER;
        PUSHSTACKi(PERLSI_MAGIC);
@@ -835,6 +840,7 @@ PP(pp_sselect)
     struct timeval *tbuf = &timebuf;
     I32 growsize;
     char *fd_sets[4];
+    STRLEN n_a;
 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
        I32 masksize;
        I32 offset;
@@ -863,8 +869,8 @@ PP(pp_sselect)
     /* If SELECT_MIN_BITS is greater than one we most probably will want
      * to align the sizes with SELECT_MIN_BITS/8 because for example
      * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
-     * UNIX, Solaris, NeXT) the smallest quantum select() operates on
-     * (sets bit) is 32 bits.  */
+     * UNIX, Solaris, NeXT, Rhapsody) the smallest quantum select() operates
+     * on (sets/tests/clears bits) is 32 bits.  */
     growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
 #  else
     growsize = sizeof(fd_set);
@@ -903,7 +909,7 @@ PP(pp_sselect)
            continue;
        }
        else if (!SvPOK(sv))
-           SvPV_force(sv,PL_na);       /* force string conversion */
+           SvPV_force(sv,n_a); /* force string conversion */
        j = SvLEN(sv);
        if (j < growsize) {
            Sv_Grow(sv, growsize);
@@ -1230,6 +1236,7 @@ PP(pp_prtf)
     PerlIO *fp;
     SV *sv;
     MAGIC *mg;
+    STRLEN n_a;
 
     if (PL_op->op_flags & OPf_STACKED)
        gv = (GV*)*++MARK;
@@ -1260,7 +1267,7 @@ PP(pp_prtf)
     if (!(io = GvIO(gv))) {
        if (ckWARN(WARN_UNOPENED)) {
            gv_fullname3(sv, gv, Nullch);
-           warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,PL_na));
+           warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a));
        }
        SETERRNO(EBADF,RMS$_IFI);
        goto just_say_no;
@@ -1270,10 +1277,10 @@ PP(pp_prtf)
            gv_fullname3(sv, gv, Nullch);
            if (IoIFP(io))
                warner(WARN_IO, "Filehandle %s opened only for input",
-                       SvPV(sv,PL_na));
+                       SvPV(sv,n_a));
            else if (ckWARN(WARN_CLOSED))
                warner(WARN_CLOSED, "printf on closed filehandle %s",
-                       SvPV(sv,PL_na));
+                       SvPV(sv,n_a));
        }
        SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
        goto just_say_no;
@@ -1422,7 +1429,17 @@ PP(pp_sysread)
        Zero(buffer+bufsize, offset-bufsize, char);
     }
     if (PL_op->op_type == OP_SYSREAD) {
-       length = PerlLIO_read(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
+#ifdef PERL_SOCK_SYSREAD_IS_RECV
+       if (IoTYPE(io) == 's') {
+           length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
+                                  buffer+offset, length, 0);
+       }
+       else
+#endif
+       {
+           length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
+                                 buffer+offset, length);
+       }
     }
     else
 #ifdef HAS_SOCKET__bad_code_maybe
@@ -1534,7 +1551,17 @@ PP(pp_send)
            offset = 0;
        if (length > blen - offset)
            length = blen - offset;
-       length = PerlLIO_write(PerlIO_fileno(IoIFP(io)), buffer+offset, length);
+#ifdef PERL_SOCK_SYSWRITE_IS_SEND
+       if (IoTYPE(io) == 's') {
+           length = PerlSock_send(PerlIO_fileno(IoIFP(io)),
+                                  buffer+offset, length, 0);
+       }
+       else
+#endif
+       {
+           length = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
+                                  buffer+offset, length);
+       }
     }
 #ifdef HAS_SOCKET
     else if (SP > MARK) {
@@ -1623,11 +1650,12 @@ PP(pp_truncate)
     Off_t len = (Off_t)POPn;
     int result = 1;
     GV *tmpgv;
+    STRLEN n_a;
 
     SETERRNO(0,0);
 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
     if (PL_op->op_flags & OPf_SPECIAL) {
-       tmpgv = gv_fetchpv(POPp, FALSE, SVt_PVIO);
+       tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
     do_ftruncate:
        TAINT_PROPER("truncate");
        if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
@@ -1641,6 +1669,7 @@ PP(pp_truncate)
     else {
        SV *sv = POPs;
        char *name;
+       STRLEN n_a;
 
        if (SvTYPE(sv) == SVt_PVGV) {
            tmpgv = (GV*)sv;            /* *main::FRED for example */
@@ -1651,7 +1680,7 @@ PP(pp_truncate)
            goto do_ftruncate;
        }
 
-       name = SvPV(sv, PL_na);
+       name = SvPV(sv, n_a);
        TAINT_PROPER("truncate");
 #ifdef HAS_TRUNCATE
        if (truncate(name, len) < 0)
@@ -2129,8 +2158,9 @@ PP(pp_ssockopt)
            char *buf;
            int aint;
            if (SvPOKp(sv)) {
-               buf = SvPV(sv, PL_na);
-               len = PL_na;
+               STRLEN l;
+               buf = SvPV(sv, l);
+               len = l;
            }
            else {
                aint = (int)SvIV(sv);
@@ -2243,6 +2273,7 @@ PP(pp_stat)
     GV *tmpgv;
     I32 gimme;
     I32 max = 13;
+    STRLEN n_a;
 
     if (PL_op->op_flags & OPf_REF) {
        tmpgv = cGVOP->op_gv;
@@ -2267,17 +2298,17 @@ PP(pp_stat)
            tmpgv = (GV*)SvRV(sv);
            goto do_fstat;
        }
-       sv_setpv(PL_statname, SvPV(sv,PL_na));
+       sv_setpv(PL_statname, SvPV(sv,n_a));
        PL_statgv = Nullgv;
 #ifdef HAS_LSTAT
        PL_laststype = PL_op->op_type;
        if (PL_op->op_type == OP_LSTAT)
-           PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, PL_na), &PL_statcache);
+           PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
        else
 #endif
-           PL_laststatval = PerlLIO_stat(SvPV(PL_statname, PL_na), &PL_statcache);
+           PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
        if (PL_laststatval < 0) {
-           if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, PL_na), '\n'))
+           if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
                warner(WARN_NEWLINE, PL_warn_nl, "stat");
            max = 0;
        }
@@ -2329,8 +2360,9 @@ PP(pp_ftrread)
     I32 result;
     djSP;
 #if defined(HAS_ACCESS) && defined(R_OK)
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = access(TOPp, R_OK);
+       result = access(TOPpx, R_OK);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2355,8 +2387,9 @@ PP(pp_ftrwrite)
     I32 result;
     djSP;
 #if defined(HAS_ACCESS) && defined(W_OK)
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = access(TOPp, W_OK);
+       result = access(TOPpx, W_OK);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2381,8 +2414,9 @@ PP(pp_ftrexec)
     I32 result;
     djSP;
 #if defined(HAS_ACCESS) && defined(X_OK)
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = access(TOPp, X_OK);
+       result = access(TOPpx, X_OK);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2407,8 +2441,9 @@ PP(pp_fteread)
     I32 result;
     djSP;
 #ifdef PERL_EFF_ACCESS_R_OK
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = PERL_EFF_ACCESS_R_OK(TOPp);
+       result = PERL_EFF_ACCESS_R_OK(TOPpx);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2433,8 +2468,9 @@ PP(pp_ftewrite)
     I32 result;
     djSP;
 #ifdef PERL_EFF_ACCESS_W_OK
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = PERL_EFF_ACCESS_W_OK(TOPp);
+       result = PERL_EFF_ACCESS_W_OK(TOPpx);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2459,8 +2495,9 @@ PP(pp_fteexec)
     I32 result;
     djSP;
 #ifdef PERL_EFF_ACCESS_X_OK
+    STRLEN n_a;
     if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
-       result = PERL_EFF_ACCESS_X_OK(TOPp);
+       result = PERL_EFF_ACCESS_X_OK(TOPpx);
        if (result == 0)
            RETPUSHYES;
        if (result < 0)
@@ -2681,6 +2718,7 @@ PP(pp_fttty)
     int fd;
     GV *gv;
     char *tmps = Nullch;
+    STRLEN n_a;
 
     if (PL_op->op_flags & OPf_REF)
        gv = cGVOP->op_gv;
@@ -2689,7 +2727,7 @@ PP(pp_fttty)
     else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
        gv = (GV*)SvRV(POPs);
     else
-       gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
+       gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
 
     if (GvIO(gv) && IoIFP(GvIOp(gv)))
        fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
@@ -2721,6 +2759,7 @@ PP(pp_fttext)
     register IO *io;
     register SV *sv;
     GV *gv;
+    STRLEN n_a;
 
     if (PL_op->op_flags & OPf_REF)
        gv = cGVOP->op_gv;
@@ -2784,14 +2823,14 @@ PP(pp_fttext)
       really_filename:
        PL_statgv = Nullgv;
        PL_laststatval = -1;
-       sv_setpv(PL_statname, SvPV(sv, PL_na));
+       sv_setpv(PL_statname, SvPV(sv, n_a));
 #ifdef HAS_OPEN3
-       i = PerlLIO_open3(SvPV(sv, PL_na), O_RDONLY, 0);
+       i = PerlLIO_open3(SvPV(sv, n_a), O_RDONLY, 0);
 #else
-       i = PerlLIO_open(SvPV(sv, PL_na), 0);
+       i = PerlLIO_open(SvPV(sv, n_a), 0);
 #endif
        if (i < 0) {
-           if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, PL_na), '\n'))
+           if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
                warner(WARN_NEWLINE, PL_warn_nl, "open");
            RETPUSHUNDEF;
        }
@@ -2847,26 +2886,27 @@ PP(pp_chdir)
     djSP; dTARGET;
     char *tmps;
     SV **svp;
+    STRLEN n_a;
 
     if (MAXARG < 1)
        tmps = Nullch;
     else
-       tmps = POPp;
+       tmps = POPpx;
     if (!tmps || !*tmps) {
        svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
        if (svp)
-           tmps = SvPV(*svp, PL_na);
+           tmps = SvPV(*svp, n_a);
     }
     if (!tmps || !*tmps) {
        svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
        if (svp)
-           tmps = SvPV(*svp, PL_na);
+           tmps = SvPV(*svp, n_a);
     }
 #ifdef VMS
     if (!tmps || !*tmps) {
        svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
        if (svp)
-           tmps = SvPV(*svp, PL_na);
+           tmps = SvPV(*svp, n_a);
     }
 #endif
     TAINT_PROPER("chdir");
@@ -2898,7 +2938,8 @@ PP(pp_chroot)
     djSP; dTARGET;
     char *tmps;
 #ifdef HAS_CHROOT
-    tmps = POPp;
+    STRLEN n_a;
+    tmps = POPpx;
     TAINT_PROPER("chroot");
     PUSHi( chroot(tmps) >= 0 );
     RETURN;
@@ -2941,9 +2982,10 @@ PP(pp_rename)
 {
     djSP; dTARGET;
     int anum;
+    STRLEN n_a;
 
-    char *tmps2 = POPp;
-    char *tmps = SvPV(TOPs, PL_na);
+    char *tmps2 = POPpx;
+    char *tmps = SvPV(TOPs, n_a);
     TAINT_PROPER("rename");
 #ifdef HAS_RENAME
     anum = PerlLIO_rename(tmps, tmps2);
@@ -2967,8 +3009,9 @@ PP(pp_link)
 {
     djSP; dTARGET;
 #ifdef HAS_LINK
-    char *tmps2 = POPp;
-    char *tmps = SvPV(TOPs, PL_na);
+    STRLEN n_a;
+    char *tmps2 = POPpx;
+    char *tmps = SvPV(TOPs, n_a);
     TAINT_PROPER("link");
     SETi( link(tmps, tmps2) >= 0 );
 #else
@@ -2981,8 +3024,9 @@ PP(pp_symlink)
 {
     djSP; dTARGET;
 #ifdef HAS_SYMLINK
-    char *tmps2 = POPp;
-    char *tmps = SvPV(TOPs, PL_na);
+    STRLEN n_a;
+    char *tmps2 = POPpx;
+    char *tmps = SvPV(TOPs, n_a);
     TAINT_PROPER("symlink");
     SETi( symlink(tmps, tmps2) >= 0 );
     RETURN;
@@ -2998,11 +3042,12 @@ PP(pp_readlink)
     char *tmps;
     char buf[MAXPATHLEN];
     int len;
+    STRLEN n_a;
 
 #ifndef INCOMPLETE_TAINTS
     TAINT;
 #endif
-    tmps = POPp;
+    tmps = POPpx;
     len = readlink(tmps, buf, sizeof buf);
     EXTEND(SP, 1);
     if (len < 0)
@@ -3111,7 +3156,8 @@ PP(pp_mkdir)
 #ifndef HAS_MKDIR
     int oldumask;
 #endif
-    char *tmps = SvPV(TOPs, PL_na);
+    STRLEN n_a;
+    char *tmps = SvPV(TOPs, n_a);
 
     TAINT_PROPER("mkdir");
 #ifdef HAS_MKDIR
@@ -3129,8 +3175,9 @@ PP(pp_rmdir)
 {
     djSP; dTARGET;
     char *tmps;
+    STRLEN n_a;
 
-    tmps = POPp;
+    tmps = POPpx;
     TAINT_PROPER("rmdir");
 #ifdef HAS_RMDIR
     XPUSHi( PerlDir_rmdir(tmps) >= 0 );
@@ -3146,7 +3193,8 @@ PP(pp_open_dir)
 {
     djSP;
 #if defined(Direntry_t) && defined(HAS_READDIR)
-    char *dirname = POPp;
+    STRLEN n_a;
+    char *dirname = POPpx;
     GV *gv = (GV*)POPs;
     register IO *io = GvIOn(gv);
 
@@ -3228,7 +3276,11 @@ PP(pp_telldir)
 {
     djSP; dTARGET;
 #if defined(HAS_TELLDIR) || defined(telldir)
-# ifdef NEED_TELLDIR_PROTO /* XXX does _anyone_ need this? --AD 2/20/1998 */
+ /* XXX does _anyone_ need this? --AD 2/20/1998 */
+ /* XXX netbsd still seemed to.
+    XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
+    --JHI 1999-Feb-02 */
+# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
     long telldir _((DIR *));
 # endif
     GV *gv = (GV*)POPs;
@@ -3391,10 +3443,11 @@ PP(pp_system)
     int result;
     int status;
     Sigsave_t ihand,qhand;     /* place to save signals during system() */
+    STRLEN n_a;
 
     if (SP - MARK == 1) {
        if (PL_tainting) {
-           char *junk = SvPV(TOPs, PL_na);
+           char *junk = SvPV(TOPs, n_a);
            TAINT_ENV();
            TAINT_PROPER("system");
        }
@@ -3430,7 +3483,7 @@ PP(pp_system)
     else if (SP - MARK != 1)
        value = (I32)do_aexec(Nullsv, MARK, SP);
     else {
-       value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
+       value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
     }
     PerlProc__exit(-1);
 #else /* ! FORK or VMS or OS/2 */
@@ -3441,7 +3494,7 @@ PP(pp_system)
     else if (SP - MARK != 1)
        value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
     else {
-       value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), PL_na));
+       value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
     }
     STATUS_NATIVE_SET(value);
     do_execfree();
@@ -3455,6 +3508,7 @@ PP(pp_exec)
 {
     djSP; dMARK; dORIGMARK; dTARGET;
     I32 value;
+    STRLEN n_a;
 
     if (PL_op->op_flags & OPf_STACKED) {
        SV *really = *++MARK;
@@ -3475,18 +3529,18 @@ PP(pp_exec)
 #endif
     else {
        if (PL_tainting) {
-           char *junk = SvPV(*SP, PL_na);
+           char *junk = SvPV(*SP, n_a);
            TAINT_ENV();
            TAINT_PROPER("exec");
        }
 #ifdef VMS
-       value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
+       value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
 #else
 #  ifdef __OPEN_VM
-       (void) do_spawn(SvPVx(sv_mortalcopy(*SP), PL_na));
+       (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
        value = 0;
 #  else
-       value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), PL_na));
+       value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
 #  endif
 #endif
     }
@@ -3910,11 +3964,12 @@ PP(pp_ghostent)
 #endif
     struct hostent *hent;
     unsigned long len;
+    STRLEN n_a;
 
     EXTEND(SP, 10);
     if (which == OP_GHBYNAME)
 #ifdef HAS_GETHOSTBYNAME
-       hent = PerlSock_gethostbyname(POPp);
+       hent = PerlSock_gethostbyname(POPpx);
 #else
        DIE(PL_no_sock_func, "gethostbyname");
 #endif
@@ -4017,10 +4072,11 @@ PP(pp_gnetent)
     struct netent *PerlSock_getnetent(void);
 #endif
     struct netent *nent;
+    STRLEN n_a;
 
     if (which == OP_GNBYNAME)
 #ifdef HAS_GETNETBYNAME
-       nent = PerlSock_getnetbyname(POPp);
+       nent = PerlSock_getnetbyname(POPpx);
 #else
         DIE(PL_no_sock_func, "getnetbyname");
 #endif
@@ -4104,10 +4160,11 @@ PP(pp_gprotoent)
     struct protoent *PerlSock_getprotoent(void);
 #endif
     struct protoent *pent;
+    STRLEN n_a;
 
     if (which == OP_GPBYNAME)
 #ifdef HAS_GETPROTOBYNAME
-       pent = PerlSock_getprotobyname(POPp);
+       pent = PerlSock_getprotobyname(POPpx);
 #else
        DIE(PL_no_sock_func, "getprotobyname");
 #endif
@@ -4186,11 +4243,12 @@ PP(pp_gservent)
     struct servent *PerlSock_getservent(void);
 #endif
     struct servent *sent;
+    STRLEN n_a;
 
     if (which == OP_GSBYNAME) {
 #ifdef HAS_GETSERVBYNAME
-       char *proto = POPp;
-       char *name = POPp;
+       char *proto = POPpx;
+       char *name = POPpx;
 
        if (proto && !*proto)
            proto = Nullch;
@@ -4202,7 +4260,7 @@ PP(pp_gservent)
     }
     else if (which == OP_GSBYPORT) {
 #ifdef HAS_GETSERVBYPORT
-       char *proto = POPp;
+       char *proto = POPpx;
        unsigned short port = POPu;
 
 #ifdef HAS_HTONS
@@ -4379,9 +4437,10 @@ PP(pp_gpwent)
     I32 which = PL_op->op_type;
     register SV *sv;
     struct passwd *pwent;
+    STRLEN n_a;
 
     if (which == OP_GPWNAM)
-       pwent = getpwnam(POPp);
+       pwent = getpwnam(POPpx);
     else if (which == OP_GPWUID)
        pwent = getpwuid(POPi);
     else
@@ -4512,9 +4571,10 @@ PP(pp_ggrent)
     register char **elem;
     register SV *sv;
     struct group *grent;
+    STRLEN n_a;
 
     if (which == OP_GGRNAM)
-       grent = (struct group *)getgrnam(POPp);
+       grent = (struct group *)getgrnam(POPpx);
     else if (which == OP_GGRGID)
        grent = (struct group *)getgrgid(POPi);
     else
@@ -4606,6 +4666,7 @@ PP(pp_syscall)
     register I32 i = 0;
     I32 retval = -1;
     MAGIC *mg;
+    STRLEN n_a;
 
     if (PL_tainting) {
        while (++MARK <= SP) {
@@ -4628,7 +4689,7 @@ PP(pp_syscall)
        else if (*MARK == &PL_sv_undef)
            a[i++] = 0;
        else 
-           a[i++] = (unsigned long)SvPV_force(*MARK, PL_na);
+           a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
        if (i > 15)
            break;
     }