-/*
- * Copyright (c) 1991, 1992, 1993, 1994 Larry Wall
+/* perl.c
+ *
+ * Copyright (c) 1987-1996 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.
*
- * $Log: perl.c,v $
- * Revision 4.1 92/08/07 18:25:50 lwall
- *
- * Revision 4.0.1.7 92/06/08 14:50:39 lwall
- * patch20: PERLLIB now supports multiple directories
- * patch20: running taintperl explicitly now does checks even if $< == $>
- * patch20: -e 'cmd' no longer fails silently if /tmp runs out of space
- * patch20: perl -P now uses location of sed determined by Configure
- * patch20: form feed for formats is now specifiable via $^L
- * patch20: paragraph mode now skips extra newlines automatically
- * patch20: oldeval "1 #comment" didn't work
- * patch20: couldn't require . files
- * patch20: semantic compilation errors didn't abort execution
- *
- * Revision 4.0.1.6 91/11/11 16:38:45 lwall
- * patch19: default arg for shift was wrong after first subroutine definition
- * patch19: op/regexp.t failed from missing arg to bcmp()
- *
- * Revision 4.0.1.5 91/11/05 18:03:32 lwall
- * patch11: random cleanup
- * patch11: $0 was being truncated at times
- * patch11: cppstdin now installed outside of source directory
- * patch11: -P didn't allow use of #elif or #undef
- * patch11: prepared for ctype implementations that don't define isascii()
- * patch11: added oldeval {}
- * patch11: oldeval confused by string containing null
- *
- * Revision 4.0.1.4 91/06/10 01:23:07 lwall
- * patch10: perl -v printed incorrect copyright notice
- *
- * Revision 4.0.1.3 91/06/07 11:40:18 lwall
- * patch4: changed old $^P to $^X
- *
- * Revision 4.0.1.2 91/06/07 11:26:16 lwall
- * patch4: new copyright notice
- * patch4: added $^P variable to control calling of perldb routines
- * patch4: added $^F variable to specify maximum system fd, default 2
- * patch4: debugger lost track of lines in oldeval
- *
- * Revision 4.0.1.1 91/04/11 17:49:05 lwall
- * patch1: fixed undefined environ problem
- *
- * Revision 4.0 91/03/20 01:37:44 lwall
- * 4.0 baseline.
- *
*/
-/*SUPPRESS 560*/
+/*
+ * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
+ */
#include "EXTERN.h"
#include "perl.h"
-#include "perly.h"
#include "patchlevel.h"
-char rcsid[] = "$RCSfile: perl.c,v $$Revision: 5.0 $$Date: 92/08/07 18:25:50 $\nPatch level: ###\n";
+/* Omit -- it causes too much grief on mixed systems.
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+*/
+
+dEXT char rcsid[] = "perl.c\nPatch level: ###\n";
#ifdef IAMSUID
#ifndef DOSUID
#endif
#endif
-static void incpush();
-static void validate_suid();
-static void find_beginning();
-static void init_main_stash();
-static void open_script();
-static void init_debugger();
-static void init_stack();
-static void init_lexer();
-static void init_context_stack();
-static void init_predump_symbols();
-static void init_postdump_symbols();
-static void init_perllib();
+static void find_beginning _((void));
+static void incpush _((char *));
+static void init_ids _((void));
+static void init_debugger _((void));
+static void init_lexer _((void));
+static void init_main_stash _((void));
+static void init_perllib _((void));
+static void init_postdump_symbols _((int, char **, char **));
+static void init_predump_symbols _((void));
+static void init_stacks _((void));
+static void open_script _((char *, bool, SV *));
+static void usage _((char *));
+static void validate_suid _((char *, char*));
+
+static int fdscript = -1;
PerlInterpreter *
perl_alloc()
{
PerlInterpreter *sv_interp;
- PerlInterpreter junk;
- curinterp = &junk;
- Zero(&junk, 1, PerlInterpreter);
+ curinterp = 0;
New(53, sv_interp, 1, PerlInterpreter);
return sv_interp;
}
if (!(curinterp = sv_interp))
return;
+#ifdef MULTIPLICITY
Zero(sv_interp, 1, PerlInterpreter);
+#endif
/* Init the real globals? */
if (!linestr) {
linestr = NEWSV(65,80);
+ sv_upgrade(linestr,SVt_PVIV);
SvREADONLY_on(&sv_undef);
SvNV(&sv_yes);
SvREADONLY_on(&sv_yes);
+ nrs = newSVpv("\n", 1);
+ rs = SvREFCNT_inc(nrs);
+
#ifdef MSDOS
/*
* There is no way we can refer to them from Perl so close them to save
#endif
}
-#ifdef EMBEDDED
+#ifdef MULTIPLICITY
chopset = " \n-";
copline = NOLINE;
curcop = &compiling;
- cxstack_ix = -1;
- cxstack_max = 128;
+ dbargs = 0;
dlmax = 128;
laststatval = -1;
laststype = OP_STAT;
maxscream = -1;
maxsysfd = MAXSYSFD;
- nrs = "\n";
- nrschar = '\n';
- nrslen = 1;
- rs = "\n";
- rschar = '\n';
rsfp = Nullfp;
- rslen = 1;
statname = Nullsv;
tmps_floor = -1;
- tmps_ix = -1;
- tmps_max = -1;
#endif
- uid = (int)getuid();
- euid = (int)geteuid();
- gid = (int)getgid();
- egid = (int)getegid();
- tainting = (euid != uid || egid != gid);
- sprintf(patchlevel,"%3.3s%2.2d", strchr(rcsid,'5'), PATCHLEVEL);
+ init_ids();
+
+#if defined(SUBVERSION) && SUBVERSION > 0
+ sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0)
+ + (SUBVERSION / 100000.0));
+#else
+ sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0));
+#endif
- (void)sprintf(strchr(rcsid,'#'), "%d\n", PATCHLEVEL);
+#if defined(LOCAL_PATCH_COUNT)
+ Ilocalpatches = local_patches; /* For possible -v */
+#endif
fdpid = newAV(); /* for remembering popen pids by fd */
pidstatus = newHV();/* for remembering status of dead pids */
+
+ init_stacks();
+ ENTER;
}
void
perl_destruct(sv_interp)
register PerlInterpreter *sv_interp;
{
+ int destruct_level; /* 0=none, 1=full, 2=full with checks */
+ I32 last_sv_count;
+ HV *hv;
+
if (!(curinterp = sv_interp))
return;
-#ifdef EMBEDDED
- if (main_root)
- op_free(main_root);
- main_root = 0;
+
+ destruct_level = perl_destruct_level;
+#ifdef DEBUGGING
+ {
+ char *s;
+ if (s = getenv("PERL_DESTRUCT_LEVEL"))
+ destruct_level = atoi(s);
+ }
#endif
+
+ LEAVE;
+ FREETMPS;
+
+ if (sv_objcount) {
+ /* We must account for everything. First the syntax tree. */
+ if (main_root) {
+ curpad = AvARRAY(comppad);
+ op_free(main_root);
+ main_root = 0;
+ }
+ }
+ if (sv_objcount) {
+ /*
+ * Try to destruct global references. We do this first so that the
+ * destructors and destructees still exist. Some sv's might remain.
+ * Non-referenced objects are on their own.
+ */
+
+ dirty = TRUE;
+ sv_clean_objs();
+ }
+
+ if (destruct_level == 0){
+
+ DEBUG_P(debprofdump());
+
+ /* The exit() function will do everything that needs doing. */
+ return;
+ }
+
+ /* Prepare to destruct main symbol table. */
+ hv = defstash;
+ defstash = 0;
+ SvREFCNT_dec(hv);
+
+ FREETMPS;
+ if (destruct_level >= 2) {
+ if (scopestack_ix != 0)
+ warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix);
+ if (savestack_ix != 0)
+ warn("Unbalanced saves: %d more saves than restores\n", savestack_ix);
+ if (tmps_floor != -1)
+ warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1);
+ if (cxstack_ix != -1)
+ warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1);
+ }
+
+ /* Now absolutely destruct everything, somehow or other, loops or no. */
+ last_sv_count = 0;
+ while (sv_count != 0 && sv_count != last_sv_count) {
+ last_sv_count = sv_count;
+ sv_clean_all();
+ }
+ if (sv_count != 0)
+ warn("Scalars leaked: %d\n", sv_count);
+ sv_free_arenas();
+
+ DEBUG_P(debprofdump());
}
void
return;
Safefree(sv_interp);
}
+#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
+char *getenv _((char *)); /* Usually in <stdlib.h> */
+#endif
int
-perl_parse(sv_interp, argc, argv, env)
+perl_parse(sv_interp, xsinit, argc, argv, env)
PerlInterpreter *sv_interp;
-register int argc;
-register char **argv;
+void (*xsinit)_((void));
+int argc;
+char **argv;
char **env;
{
register SV *sv;
register char *s;
- char *scriptname;
- char *getenv();
- bool dosearch = FALSE;
+ char *scriptname = NULL;
+ VOL bool dosearch = FALSE;
char *validarg = "";
+ AV* comppadlist;
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
#ifdef IAMSUID
if (!(curinterp = sv_interp))
return 255;
- if (main_root)
- op_free(main_root);
- main_root = 0;
-
origargv = argv;
origargc = argc;
+#ifndef VMS /* VMS doesn't have environ array */
origenviron = environ;
+#endif
+ e_tmpname = Nullch;
+
+ if (do_undump) {
+
+ /* Come here if running an undumped a.out. */
+
+ origfilename = savepv(argv[0]);
+ do_undump = FALSE;
+ cxstack_ix = -1; /* start label stack again */
+ init_ids();
+ init_postdump_symbols(argc,argv,env);
+ return 0;
+ }
- switch (setjmp(top_env)) {
+ if (main_root)
+ op_free(main_root);
+ main_root = 0;
+
+ switch (Sigsetjmp(top_env,1)) {
case 1:
+#ifdef VMS
statusvalue = 255;
+#else
+ statusvalue = 1;
+#endif
case 2:
+ curstash = defstash;
+ if (endav)
+ calllist(endav);
return(statusvalue); /* my_exit() was called */
case 3:
fprintf(stderr, "panic: top_env\n");
- exit(1);
+ return 1;
}
- if (do_undump) {
- origfilename = savestr(argv[0]);
- do_undump = FALSE;
- cxstack_ix = -1; /* start label stack again */
- goto just_doit;
- }
sv_setpvn(linestr,"",0);
sv = newSVpv("",0); /* first used for -I flags */
+ SAVEFREESV(sv);
init_main_stash();
for (argc--,argv++; argc > 0; argc--,argv++) {
if (argv[0][0] != '-' || !argv[0][1])
reswitch:
switch (*s) {
case '0':
+ case 'F':
case 'a':
case 'c':
case 'd':
case 'D':
+ case 'h':
case 'i':
case 'l':
+ case 'M':
+ case 'm':
case 'n':
case 'p':
case 's':
if (euid != uid || egid != gid)
croak("No -e allowed in setuid scripts");
if (!e_fp) {
- e_tmpname = savestr(TMPPATH);
+ e_tmpname = savepv(TMPPATH);
(void)mktemp(e_tmpname);
if (!*e_tmpname)
croak("Can't mktemp()");
sv_catpv(sv,s);
sv_catpv(sv," ");
if (*++s) {
- (void)av_push(GvAVn(incgv),newSVpv(s,0));
+ av_push(GvAVn(incgv),newSVpv(s,0));
}
else if (argv[1]) {
- (void)av_push(GvAVn(incgv),newSVpv(argv[1],0));
+ av_push(GvAVn(incgv),newSVpv(argv[1],0));
sv_catpv(sv,argv[1]);
argc--,argv++;
sv_catpv(sv," ");
dosearch = TRUE;
s++;
goto reswitch;
+ case 'V':
+ if (!preambleav)
+ preambleav = newAV();
+ av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
+ if (*++s != ':') {
+ Sv = newSVpv("print myconfig(),'@INC: '.\"@INC\\n\"",0);
+ }
+ else {
+ Sv = newSVpv("config_vars(qw(",0);
+ sv_catpv(Sv, ++s);
+ sv_catpv(Sv, "))");
+ s += strlen(s);
+ }
+ av_push(preambleav, Sv);
+ scriptname = BIT_BUCKET; /* don't look for script or read stdin */
+ goto reswitch;
case 'x':
doextract = TRUE;
s++;
if (*s)
- cddir = savestr(s);
+ cddir = savepv(s);
break;
case '-':
argc--,argv++;
}
}
switch_end:
- scriptname = argv[0];
+ if (!scriptname)
+ scriptname = argv[0];
if (e_fp) {
- if (fflush(e_fp) || ferror(e_fp) || fclose(e_fp))
- croak("Can't write to temp file for -e: %s", strerror(errno));
+ if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp))
+ croak("Can't write to temp file for -e: %s", Strerror(errno));
+ e_fp = Nullfp;
argc++,argv--;
scriptname = e_tmpname;
}
open_script(scriptname,dosearch,sv);
- sv_free(sv); /* free -I directories */
- sv = Nullsv;
-
- validate_suid(validarg);
+ validate_suid(validarg, scriptname);
if (doextract)
find_beginning();
- if (perldb)
- init_debugger();
+ compcv = (CV*)NEWSV(1104,0);
+ sv_upgrade((SV *)compcv, SVt_PVCV);
pad = newAV();
comppad = pad;
av_push(comppad, Nullsv);
curpad = AvARRAY(comppad);
padname = newAV();
- comppadname = padname;
- comppadnamefill = -1;
+ comppad_name = padname;
+ comppad_name_fill = 0;
+ min_intro_pending = 0;
padix = 0;
- init_stack();
+ comppadlist = newAV();
+ AvREAL_off(comppadlist);
+ av_store(comppadlist, 0, (SV*)comppad_name);
+ av_store(comppadlist, 1, (SV*)comppad);
+ CvPADLIST(compcv) = comppadlist;
- init_context_stack();
-
- perl_init_ext(); /* in case linked C routines want magical variables */
+ if (xsinit)
+ (*xsinit)(); /* in case linked C routines want magical variables */
+#ifdef VMS
+ init_os_extras();
+#endif
init_predump_symbols();
+ if (!do_undump)
+ init_postdump_symbols(argc,argv,env);
init_lexer();
curcop->cop_line = 0;
curstash = defstash;
preprocess = FALSE;
- if (e_fp) {
- e_fp = Nullfp;
+ if (e_tmpname) {
(void)UNLINK(e_tmpname);
+ Safefree(e_tmpname);
+ e_tmpname = Nullch;
}
/* now that script is parsed, we can modify record separator */
-
- rs = nrs;
- rslen = nrslen;
- rschar = nrschar;
- rspara = (nrslen == 2);
- sv_setpvn(GvSV(gv_fetchpv("/", TRUE)), rs, rslen);
+ SvREFCNT_dec(rs);
+ rs = SvREFCNT_inc(nrs);
+ sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs);
if (do_undump)
my_unexec();
- just_doit: /* come here if running an undumped a.out */
- init_postdump_symbols(argc,argv,env);
+ if (dowarn)
+ gv_check(defstash);
+
+ LEAVE;
+ FREETMPS;
+
+#ifdef DEBUGGING_MSTATS
+ if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
+ dump_mstats("after compilation:");
+#endif
+
+ ENTER;
+ restartop = 0;
return 0;
}
{
if (!(curinterp = sv_interp))
return 255;
- if (beginav)
- calllist(beginav);
- switch (setjmp(top_env)) {
+ switch (Sigsetjmp(top_env,1)) {
case 1:
cxstack_ix = -1; /* start context stack again */
break;
curstash = defstash;
if (endav)
calllist(endav);
+ FREETMPS;
+#ifdef DEBUGGING_MSTATS
+ if (getenv("PERL_DEBUG_MSTATS"))
+ dump_mstats("after execution: ");
+#endif
return(statusvalue); /* my_exit() was called */
case 3:
if (!restartop) {
fprintf(stderr, "panic: restartop\n");
- exit(1);
+ FREETMPS;
+ return 1;
}
if (stack != mainstack) {
dSP;
fprintf(stderr,"%s syntax OK\n", origfilename);
my_exit(0);
}
+ if (perldb && DBsingle)
+ sv_setiv(DBsingle, 1);
+ if (restartav)
+ calllist(restartav);
}
/* do it */
if (restartop) {
op = restartop;
restartop = 0;
- run();
+ runops();
}
else if (main_start) {
op = main_start;
- run();
+ runops();
}
my_exit(0);
+ return 0;
}
void
my_exit(status)
-int status;
+U32 status;
+{
+ register CONTEXT *cx;
+ I32 gimme;
+ SV **newsp;
+
+ statusvalue = FIXSTATUS(status);
+ if (cxstack_ix >= 0) {
+ if (cxstack_ix > 0)
+ dounwind(0);
+ POPBLOCK(cx,curpm);
+ LEAVE;
+ }
+ Siglongjmp(top_env, 2);
+}
+
+SV*
+perl_get_sv(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PV);
+ if (gv)
+ return GvSV(gv);
+ return Nullsv;
+}
+
+AV*
+perl_get_av(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVAV);
+ if (create)
+ return GvAVn(gv);
+ if (gv)
+ return GvAV(gv);
+ return Nullav;
+}
+
+HV*
+perl_get_hv(name, create)
+char* name;
+I32 create;
{
- statusvalue = (unsigned short)(status & 0xffff);
- longjmp(top_env, 2);
+ GV* gv = gv_fetchpv(name, create, SVt_PVHV);
+ if (create)
+ return GvHVn(gv);
+ if (gv)
+ return GvHV(gv);
+ return Nullhv;
+}
+
+CV*
+perl_get_cv(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVCV);
+ if (create && !GvCV(gv))
+ return newSUB(start_subparse(),
+ newSVOP(OP_CONST, 0, newSVpv(name,0)),
+ Nullop,
+ Nullop);
+ if (gv)
+ return GvCV(gv);
+ return Nullcv;
}
/* Be sure to refetch the stack pointer after calling these routines. */
-int
-perl_callback(subname, sp, gimme, hasargs, numargs)
+I32
+perl_call_argv(subname, flags, argv)
char *subname;
-I32 sp; /* stack pointer after args are pushed */
-I32 gimme; /* called in array or scalar context */
-I32 hasargs; /* whether to create a @_ array for routine */
-I32 numargs; /* how many args are pushed on the stack */
+I32 flags; /* See G_* flags in cop.h */
+register char **argv; /* null terminated arg list */
+{
+ dSP;
+
+ PUSHMARK(sp);
+ if (argv) {
+ while (*argv) {
+ XPUSHs(sv_2mortal(newSVpv(*argv,0)));
+ argv++;
+ }
+ PUTBACK;
+ }
+ return perl_call_pv(subname, flags);
+}
+
+I32
+perl_call_pv(subname, flags)
+char *subname; /* name of the subroutine */
+I32 flags; /* See G_* flags in cop.h */
+{
+ return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags);
+}
+
+I32
+perl_call_method(methname, flags)
+char *methname; /* name of the subroutine */
+I32 flags; /* See G_* flags in cop.h */
{
- BINOP myop; /* fake syntax tree node */
+ dSP;
+ OP myop;
+ if (!op)
+ op = &myop;
+ XPUSHs(sv_2mortal(newSVpv(methname,0)));
+ PUTBACK;
+ pp_method();
+ return perl_call_sv(*stack_sp--, flags);
+}
+
+/* May be called with any of a CV, a GV, or an SV containing the name. */
+I32
+perl_call_sv(sv, flags)
+SV* sv;
+I32 flags; /* See G_* flags in cop.h */
+{
+ LOGOP myop; /* fake syntax tree node */
+ SV** sp = stack_sp;
+ I32 oldmark = TOPMARK;
+ I32 retval;
+ Sigjmp_buf oldtop;
+ I32 oldscope;
- ENTER;
- SAVETMPS;
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
+
SAVESPTR(op);
- stack_base = AvARRAY(stack);
- stack_sp = stack_base + sp - numargs - 1;
op = (OP*)&myop;
- Zero(op, 1, BINOP);
- pp_pushmark(); /* doesn't look at op, actually, except to return */
- *++stack_sp = (SV*)gv_fetchpv(subname, FALSE);
- stack_sp += numargs;
+ Zero(op, 1, LOGOP);
+ EXTEND(stack_sp, 1);
+ *++stack_sp = sv;
+ oldscope = scopestack_ix;
- if (hasargs) {
+ if (!(flags & G_NOARGS))
myop.op_flags = OPf_STACKED;
- myop.op_last = (OP*)&myop;
- }
myop.op_next = Nullop;
+ myop.op_flags |= OPf_KNOW;
+ if (flags & G_ARRAY)
+ myop.op_flags |= OPf_LIST;
- if (op = pp_entersubr())
- run();
- free_tmps();
- LEAVE;
- return stack_sp - stack_base;
+ if (flags & G_EVAL) {
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+ cLOGOP->op_other = op;
+ markstack_ptr--;
+ /* we're trying to emulate pp_entertry() here */
+ {
+ register CONTEXT *cx;
+ I32 gimme = GIMME;
+
+ ENTER;
+ SAVETMPS;
+
+ push_return(op->op_next);
+ PUSHBLOCK(cx, CXt_EVAL, stack_sp);
+ PUSHEVAL(cx, 0, 0);
+ eval_root = op; /* Only needed so that goto works right. */
+
+ in_eval = 1;
+ if (flags & G_KEEPERR)
+ in_eval |= 4;
+ else
+ sv_setpv(GvSV(errgv),"");
+ }
+ markstack_ptr++;
+
+ restart:
+ switch (Sigsetjmp(top_env,1)) {
+ case 0:
+ break;
+ case 1:
+#ifdef VMS
+ statusvalue = 255; /* XXX I don't think we use 1 anymore. */
+#else
+ statusvalue = 1;
+#endif
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ curstash = defstash;
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (statusvalue)
+ croak("Callback called exit");
+ my_exit(statusvalue);
+ /* NOTREACHED */
+ case 3:
+ if (restartop) {
+ op = restartop;
+ restartop = 0;
+ goto restart;
+ }
+ stack_sp = stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++stack_sp = &sv_undef;
+ }
+ goto cleanup;
+ }
+ }
+
+ if (op == (OP*)&myop)
+ op = pp_entersub();
+ if (op)
+ runops();
+ retval = stack_sp - (stack_base + oldmark);
+ if ((flags & G_EVAL) && !(flags & G_KEEPERR))
+ sv_setpv(GvSV(errgv),"");
+
+ cleanup:
+ if (flags & G_EVAL) {
+ if (scopestack_ix > oldscope) {
+ SV **newsp;
+ PMOP *newpm;
+ I32 gimme;
+ register CONTEXT *cx;
+ I32 optype;
+
+ POPBLOCK(cx,newpm);
+ POPEVAL(cx);
+ pop_return();
+ curpm = newpm;
+ LEAVE;
+ }
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ }
+ if (flags & G_DISCARD) {
+ stack_sp = stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ return retval;
}
-int
-perl_callv(subname, sp, gimme, argv)
-char *subname;
-register I32 sp; /* current stack pointer */
-I32 gimme; /* called in array or scalar context */
-register char **argv; /* null terminated arg list, NULL for no arglist */
+/* Eval a string. */
+
+I32
+perl_eval_sv(sv, flags)
+SV* sv;
+I32 flags; /* See G_* flags in cop.h */
{
- register I32 items = 0;
- I32 hasargs = (argv != 0);
+ UNOP myop; /* fake syntax tree node */
+ SV** sp = stack_sp;
+ I32 oldmark = sp - stack_base;
+ I32 retval;
+ Sigjmp_buf oldtop;
+ I32 oldscope;
+
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
- av_store(stack, ++sp, Nullsv); /* reserve spot for 1st return arg */
- if (hasargs) {
- while (*argv) {
- av_store(stack, ++sp, sv_2mortal(newSVpv(*argv,0)));
- items++;
- argv++;
+ SAVESPTR(op);
+ op = (OP*)&myop;
+ Zero(op, 1, UNOP);
+ EXTEND(stack_sp, 1);
+ *++stack_sp = sv;
+ oldscope = scopestack_ix;
+
+ if (!(flags & G_NOARGS))
+ myop.op_flags = OPf_STACKED;
+ myop.op_next = Nullop;
+ myop.op_flags |= OPf_KNOW;
+ if (flags & G_ARRAY)
+ myop.op_flags |= OPf_LIST;
+
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+restart:
+ switch (Sigsetjmp(top_env,1)) {
+ case 0:
+ break;
+ case 1:
+#ifdef VMS
+ statusvalue = 255; /* XXX I don't think we use 1 anymore. */
+#else
+ statusvalue = 1;
+#endif
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ curstash = defstash;
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (statusvalue)
+ croak("Callback called exit");
+ my_exit(statusvalue);
+ /* NOTREACHED */
+ case 3:
+ if (restartop) {
+ op = restartop;
+ restartop = 0;
+ goto restart;
}
+ stack_sp = stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++stack_sp = &sv_undef;
+ }
+ goto cleanup;
}
- return perl_callback(subname, sp, gimme, hasargs, items);
+
+ if (op == (OP*)&myop)
+ op = pp_entereval();
+ if (op)
+ runops();
+ retval = stack_sp - (stack_base + oldmark);
+ if ((flags & G_EVAL) && !(flags & G_KEEPERR))
+ sv_setpv(GvSV(errgv),"");
+
+ cleanup:
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (flags & G_DISCARD) {
+ stack_sp = stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ return retval;
+}
+
+/* Require a module. */
+
+void
+perl_require_pv(pv)
+char* pv;
+{
+ SV* sv = sv_newmortal();
+ sv_setpv(sv, "require '");
+ sv_catpv(sv, pv);
+ sv_catpv(sv, "'");
+ perl_eval_sv(sv, G_DISCARD);
}
void
{
register GV *gv;
- if (gv = gv_fetchpv(sym,TRUE))
+ if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
}
-#ifdef DOSISH
-#define PERLLIB_SEP ';'
+#if defined(DOSISH)
+# define PERLLIB_SEP ';'
#else
-#define PERLLIB_SEP ':'
+# if defined(VMS)
+# define PERLLIB_SEP '|'
+# else
+# define PERLLIB_SEP ':'
+# endif
#endif
static void
/* First, skip any consecutive separators */
while ( *p == PERLLIB_SEP ) {
/* Uncomment the next line for PATH semantics */
- /* (void)av_push(GvAVn(incgv), newSVpv(".", 1)); */
+ /* av_push(GvAVn(incgv), newSVpv(".", 1)); */
p++;
}
if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
- (void)av_push(GvAVn(incgv), newSVpv(p, (I32)(s - p)));
+ av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p)));
p = s + 1;
} else {
- (void)av_push(GvAVn(incgv), newSVpv(p, 0));
+ av_push(GvAVn(incgv), newSVpv(p, 0));
break;
}
}
}
+static void
+usage(name) /* XXX move this out into a module ? */
+char *name;
+{
+ /* This message really ought to be max 23 lines.
+ * Removed -h because the user already knows that opton. Others? */
+ printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
+ printf("\n -0[octal] specify record separator (\\0, if no argument)");
+ printf("\n -a autosplit mode with -n or -p (splits $_ into @F)");
+ printf("\n -c check syntax only (runs BEGIN and END blocks)");
+ printf("\n -d[:debugger] run scripts under debugger");
+ printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)");
+ printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile].");
+ printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional.");
+ printf("\n -i[extension] edit <> files in place (make backup if extension supplied)");
+ printf("\n -Idirectory specify @INC/#include directory (may be used more then once)");
+ printf("\n -l[octal] enable line ending processing, specifies line teminator");
+ printf("\n -[mM][-]module.. executes `use/no module...' before executing your script.");
+ printf("\n -n assume 'while (<>) { ... }' loop arround your script");
+ printf("\n -p assume loop like -n but print line also like sed");
+ printf("\n -P run script through C preprocessor before compilation");
+#ifdef OS2
+ printf("\n -R enable REXX variable pool");
+#endif
+ printf("\n -s enable some switch parsing for switches after script name");
+ printf("\n -S look for the script using PATH environment variable");
+ printf("\n -T turn on tainting checks");
+ printf("\n -u dump core after parsing script");
+ printf("\n -U allow unsafe operations");
+ printf("\n -v print version number and patchlevel of perl");
+ printf("\n -V[:variable] print perl configuration information");
+ printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT.");
+ printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n");
+}
+
/* This routine handles any switches that can be given during run */
char *
char *s;
{
I32 numlen;
+ U32 rschar;
switch (*s) {
case '0':
- nrschar = scan_oct(s, 4, &numlen);
- nrs = nsavestr("\n",1);
- *nrs = nrschar;
- if (nrschar > 0377) {
- nrslen = 0;
- nrs = "";
- }
- else if (!nrschar && numlen >= 2) {
- nrslen = 2;
- nrs = "\n\n";
- nrschar = '\n';
+ rschar = scan_oct(s, 4, &numlen);
+ SvREFCNT_dec(nrs);
+ if (rschar & ~((U8)~0))
+ nrs = &sv_undef;
+ else if (!rschar && numlen >= 2)
+ nrs = newSVpv("", 0);
+ else {
+ char ch = rschar;
+ nrs = newSVpv(&ch, 1);
}
return s + numlen;
+ case 'F':
+ minus_F = TRUE;
+ splitstr = savepv(s + 1);
+ s += strlen(s);
+ return s;
case 'a':
minus_a = TRUE;
s++;
return s;
case 'd':
taint_not("-d");
- perldb = TRUE;
s++;
+ if (*s == ':' || *s == '=') {
+ sprintf(buf, "use Devel::%s;", ++s);
+ s += strlen(s);
+ my_setenv("PERL5DB",buf);
+ }
+ if (!perldb) {
+ perldb = TRUE;
+ init_debugger();
+ }
return s;
case 'D':
#ifdef DEBUGGING
taint_not("-D");
if (isALPHA(s[1])) {
- static char debopts[] = "psltocPmfrxuLHX";
+ static char debopts[] = "psltocPmfrxuLHXD";
char *d;
for (s++; *s && (d = strchr(debopts,*s)); s++)
debug = atoi(s+1);
for (s++; isDIGIT(*s); s++) ;
}
- debug |= 32768;
+ debug |= 0x80000000;
#else
warn("Recompile perl with -DDEBUGGING to use -D switch\n");
- for (s++; isDIGIT(*s); s++) ;
+ for (s++; isALNUM(*s); s++) ;
#endif
/*SUPPRESS 530*/
return s;
+ case 'h':
+ usage(origargv[0]);
+ exit(0);
case 'i':
if (inplace)
Safefree(inplace);
- inplace = savestr(s+1);
+ inplace = savepv(s+1);
/*SUPPRESS 530*/
for (s = inplace; *s && !isSPACE(*s); s++) ;
*s = '\0';
case 'I':
taint_not("-I");
if (*++s) {
- (void)av_push(GvAVn(incgv),newSVpv(s,0));
+ char *e;
+ for (e = s; *e && !isSPACE(*e); e++) ;
+ av_push(GvAVn(incgv),newSVpv(s,e-s));
+ if (*e)
+ return e;
}
else
croak("No space allowed after -I");
case 'l':
minus_l = TRUE;
s++;
+ if (ors)
+ Safefree(ors);
if (isDIGIT(*s)) {
- ors = savestr("\n");
+ ors = savepv("\n");
orslen = 1;
*ors = scan_oct(s, 3 + (*s == '0'), &numlen);
s += numlen;
}
else {
- ors = nsavestr(nrs,nrslen);
- orslen = nrslen;
+ if (RsPARA(nrs)) {
+ ors = savepvn("\n\n", 2);
+ orslen = 2;
+ }
+ else
+ ors = SvPV(nrs, orslen);
+ }
+ return s;
+ case 'M':
+ taint_not("-M"); /* XXX ? */
+ /* FALL THROUGH */
+ case 'm':
+ taint_not("-m"); /* XXX ? */
+ if (*++s) {
+ char *start;
+ char *use = "use ";
+ /* -M-foo == 'no foo' */
+ if (*s == '-') { use = "no "; ++s; }
+ Sv = newSVpv(use,0);
+ start = s;
+ /* We allow -M'Module qw(Foo Bar)' */
+ while(isALNUM(*s) || *s==':') ++s;
+ if (*s != '=') {
+ sv_catpv(Sv, start);
+ if (*(start-1) == 'm') {
+ if (*s != '\0')
+ croak("Can't use '%c' after -mname", *s);
+ sv_catpv( Sv, " ()");
+ }
+ } else {
+ sv_catpvn(Sv, start, s-start);
+ sv_catpv(Sv, " split(/,/,q{");
+ sv_catpv(Sv, ++s);
+ sv_catpv(Sv, "})");
+ }
+ s += strlen(s);
+ if (preambleav == NULL)
+ preambleav = newAV();
+ av_push(preambleav, Sv);
}
+ else
+ croak("No space allowed after -%c", *(s-1));
return s;
case 'n':
minus_n = TRUE;
s++;
return s;
case 'v':
- fputs("\nThis is perl, version 5.0, Alpha 4 (unsupported)\n\n",stdout);
- fputs(rcsid,stdout);
- fputs("\nCopyright (c) 1989, 1990, 1991, 1992, 1993, 1994 Larry Wall\n",stdout);
+#if defined(SUBVERSION) && SUBVERSION > 0
+ printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION);
+#else
+ printf("\nThis is perl, version %s",patchlevel);
+#endif
+
+#if defined(DEBUGGING) || defined(EMBED) || defined(MULTIPLICITY)
+ fputs(" with", stdout);
+#ifdef DEBUGGING
+ fputs(" DEBUGGING", stdout);
+#endif
+#ifdef EMBED
+ fputs(" EMBED", stdout);
+#endif
+#ifdef MULTIPLICITY
+ fputs(" MULTIPLICITY", stdout);
+#endif
+#endif
+
+#if defined(LOCAL_PATCH_COUNT)
+ if (LOCAL_PATCH_COUNT > 0)
+ { int i;
+ fputs("\n\tLocally applied patches:\n", stdout);
+ for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
+ if (Ilocalpatches[i])
+ fprintf(stdout, "\t %s\n", Ilocalpatches[i]);
+ }
+ }
+#endif
+ printf("\n\tbuilt under %s",OSNAME);
+#ifdef __DATE__
+# ifdef __TIME__
+ printf(" at %s %s",__DATE__,__TIME__);
+# else
+ printf(" on %s",__DATE__);
+# endif
+#endif
+ fputs("\n\t+ suidperl security patch", stdout);
+ fputs("\n\nCopyright 1987-1996, Larry Wall\n",stdout);
#ifdef MSDOS
fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n",
stdout);
-#ifdef OS2
- fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n",
- stdout);
#endif
+#ifdef OS2
+ fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
+ "Version 5 port Copyright (c) 1994-1995, Andreas Kaiser\n", stdout);
#endif
#ifdef atarist
- fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout);
+ fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout);
#endif
fputs("\n\
Perl may be copied only under the terms of either the Artistic License or the\n\
-GNU General Public License, which may be found in the Perl 5.0 source kit.\n",stdout);
+GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n",stdout);
#ifdef MSDOS
usage(origargv[0]);
#endif
dowarn = TRUE;
s++;
return s;
+ case '*':
case ' ':
if (s[1] == '-') /* Additional switches on #! line. */
return s+2;
break;
+ case '-':
case 0:
case '\n':
case '\t':
break;
+ case 'P':
+ if (preprocess)
+ return s+1;
+ /* FALL THROUGH */
default:
- croak("Switch meaningless after -x: -%s",s);
+ croak("Can't emulate -%.1s on #! line",s);
}
return Nullch;
}
status = unexec(buf, tokenbuf, &etext, sbrk(0), 0);
if (status)
fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf);
- my_exit(status);
+ exit(status);
+#else
+# ifdef VMS
+# include <lib$routines.h>
+ lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
#else
ABORT(); /* for use with undump */
#endif
+#endif
}
static void
GV *gv;
curstash = defstash = newHV();
curstname = newSVpv("main",4);
- GvHV(gv = gv_fetchpv("_main",TRUE)) = defstash;
+ gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
+ SvREFCNT_dec(GvHV(gv));
+ GvHV(gv) = (HV*)SvREFCNT_inc(defstash);
SvREADONLY_on(gv);
- HvNAME(defstash) = "main";
- incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE)));
- SvMULTI_on(incgv);
- defgv = gv_fetchpv("_",TRUE);
+ HvNAME(defstash) = savepv("main");
+ incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
+ GvMULTI_on(incgv);
+ defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
+ errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
+ GvMULTI_on(errgv);
+ curstash = defstash;
+ compiling.cop_stash = defstash;
+ debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
+ /* We must init $/ before switches are processed. */
+ sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
}
+#ifdef CAN_PROTOTYPE
+static void
+open_script(char *scriptname, bool dosearch, SV *sv)
+#else
static void
open_script(scriptname,dosearch,sv)
char *scriptname;
bool dosearch;
SV *sv;
+#endif
{
char *xfound = Nullch;
char *xfailed = Nullch;
register char *s;
I32 len;
+ int retval;
+#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
+#define SEARCH_EXTS ".bat", ".cmd", NULL
+#endif
+#ifdef VMS
+# define SEARCH_EXTS ".pl", ".com", NULL
+#endif
+ /* additional extensions to try in each dir if scriptname not found */
+#ifdef SEARCH_EXTS
+ char *ext[] = { SEARCH_EXTS };
+ int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */
+#endif
+#ifdef VMS
+ if (dosearch && !strpbrk(scriptname,":[</") && (my_getenv("DCL$PATH"))) {
+ int idx = 0;
+
+ while (my_trnlnm("DCL$PATH",tokenbuf,idx++)) {
+ strcat(tokenbuf,scriptname);
+#else /* !VMS */
if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) {
bufend = s + strlen(s);
#endif
(void)strcat(tokenbuf+len,"/");
(void)strcat(tokenbuf+len,scriptname);
- DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf));
- if (stat(tokenbuf,&statbuf) < 0) /* not there? */
+#endif /* !VMS */
+
+#ifdef SEARCH_EXTS
+ len = strlen(tokenbuf);
+ if (extidx > 0) /* reset after previous loop */
+ extidx = 0;
+ do {
+#endif
+ DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf));
+ retval = Stat(tokenbuf,&statbuf);
+#ifdef SEARCH_EXTS
+ } while ( retval < 0 /* not there */
+ && extidx>=0 && ext[extidx] /* try an extension? */
+ && strcpy(tokenbuf+len, ext[extidx++])
+ );
+#endif
+ if (retval < 0)
continue;
if (S_ISREG(statbuf.st_mode)
&& cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) {
break;
}
if (!xfailed)
- xfailed = savestr(tokenbuf);
+ xfailed = savepv(tokenbuf);
}
if (!xfound)
croak("Can't execute %s", xfailed ? xfailed : scriptname );
scriptname = xfound;
}
- origfilename = savestr(scriptname);
+ if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
+ char *s = scriptname + 8;
+ fdscript = atoi(s);
+ while (isDIGIT(*s))
+ s++;
+ if (*s)
+ scriptname = s + 1;
+ }
+ else
+ fdscript = -1;
+ origfilename = savepv(e_tmpname ? "-e" : scriptname);
curcop->cop_filegv = gv_fetchfile(origfilename);
if (strEQ(origfilename,"-"))
scriptname = "";
- if (preprocess) {
+ if (fdscript >= 0) {
+ rsfp = fdopen(fdscript,"r");
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
+ else if (preprocess) {
char *cpp = CPPSTDIN;
if (strEQ(cpp,"cppstdin"))
else
sprintf(tokenbuf, "%s", cpp);
sv_catpv(sv,"-I");
- sv_catpv(sv,PRIVLIB);
+ sv_catpv(sv,PRIVLIB_EXP);
#ifdef MSDOS
(void)sprintf(buf, "\
sed %s -e \"/^[^#]/b\" \
(doextract ? "-e '1,/^#/d\n'" : ""),
#endif
scriptname, tokenbuf, SvPV(sv, na), CPPMINUS);
- DEBUG_P(fprintf(stderr, "%s\n", buf));
doextract = FALSE;
#ifdef IAMSUID /* actually, this is caught earlier */
if (euid != uid && !euid) { /* if running suidperl */
(void)seteuid(uid); /* musn't stay setuid root */
#else
#ifdef HAS_SETREUID
- (void)setreuid(-1, uid);
+ (void)setreuid((Uid_t)-1, uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1, uid, (Uid_t)-1);
#else
setuid(uid);
#endif
#endif
+#endif
if (geteuid() != uid)
croak("Can't do seteuid!\n");
}
taint_not("program input from stdin");
rsfp = stdin;
}
- else
+ else {
rsfp = fopen(scriptname,"r");
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
if ((FILE*)rsfp == Nullfp) {
#ifdef DOSUID
#ifndef IAMSUID /* in case script is not readable before setuid */
- if (euid && stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
+ if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
statbuf.st_mode & (S_ISUID|S_ISGID)) {
(void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
execv(buf, origargv); /* try again */
#endif
#endif
croak("Can't open perl script \"%s\": %s\n",
- SvPVX(GvSV(curcop->cop_filegv)), strerror(errno));
+ SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno));
}
}
static void
-validate_suid(validarg)
+validate_suid(validarg, scriptname)
char *validarg;
+char *scriptname;
{
- char *s;
+ int which;
+
/* do we need to emulate setuid on scripts? */
/* This code is for those BSD systems that have setuid #! scripts disabled
*/
#ifdef DOSUID
- if (fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */
+ char *s;
+
+ if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */
croak("Can't stat script \"%s\"",origfilename);
- if (statbuf.st_mode & (S_ISUID|S_ISGID)) {
+ if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) {
I32 len;
#ifdef IAMSUID
{
struct stat tmpstatbuf;
- if (setreuid(euid,uid) < 0 || getuid() != euid || geteuid() != uid)
+ if (
+#ifdef HAS_SETREUID
+ setreuid(euid,uid) < 0
+#else
+# if HAS_SETRESUID
+ setresuid(euid,uid,(Uid_t)-1) < 0
+# endif
+#endif
+ || getuid() != euid || geteuid() != uid)
croak("Can't swap uid and euid"); /* really paranoid */
- if (stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
+ if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
croak("Permission denied"); /* testing full pathname here */
if (tmpstatbuf.st_dev != statbuf.st_dev ||
tmpstatbuf.st_ino != statbuf.st_ino) {
}
croak("Permission denied\n");
}
- if (setreuid(uid,euid) < 0 || getuid() != uid || geteuid() != euid)
+ if (
+#ifdef HAS_SETREUID
+ setreuid(uid,euid) < 0
+#else
+# if defined(HAS_SETRESUID)
+ setresuid(uid,euid,(Uid_t)-1) < 0
+# endif
+#endif
+ || getuid() != uid || geteuid() != euid)
croak("Can't reswap uid and euid");
if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */
croak("Permission denied\n");
(void)setegid(statbuf.st_gid);
#else
#ifdef HAS_SETREGID
- (void)setregid((GIDTYPE)-1,statbuf.st_gid);
+ (void)setregid((Gid_t)-1,statbuf.st_gid);
+#else
+#ifdef HAS_SETRESGID
+ (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1);
#else
setgid(statbuf.st_gid);
#endif
#endif
+#endif
if (getegid() != statbuf.st_gid)
croak("Can't do setegid!\n");
}
(void)seteuid(statbuf.st_uid); /* all that for this */
#else
#ifdef HAS_SETREUID
- (void)setreuid((UIDTYPE)-1,statbuf.st_uid);
+ (void)setreuid((Uid_t)-1,statbuf.st_uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1);
#else
setuid(statbuf.st_uid);
#endif
#endif
+#endif
if (geteuid() != statbuf.st_uid)
croak("Can't do seteuid!\n");
}
else if (uid) { /* oops, mustn't run as root */
#ifdef HAS_SETEUID
- (void)seteuid((UIDTYPE)uid);
+ (void)seteuid((Uid_t)uid);
#else
#ifdef HAS_SETREUID
- (void)setreuid((UIDTYPE)-1,(UIDTYPE)uid);
+ (void)setreuid((Uid_t)-1,(Uid_t)uid);
#else
- setuid((UIDTYPE)uid);
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1);
+#else
+ setuid((Uid_t)uid);
+#endif
#endif
#endif
if (geteuid() != uid)
croak("Can't do seteuid!\n");
}
- uid = (int)getuid();
- euid = (int)geteuid();
- gid = (int)getgid();
- egid = (int)getegid();
- tainting |= (euid != uid || egid != gid);
+ init_ids();
if (!cando(S_IXUSR,TRUE,&statbuf))
croak("Permission denied\n"); /* they can't do this */
}
#ifdef IAMSUID
else if (preprocess)
croak("-P not allowed for setuid/setgid script\n");
+ else if (fdscript >= 0)
+ croak("fd script not allowed in suidperl\n");
else
croak("Script is not setuid/setgid in suidperl\n");
+
+ /* We absolutely must clear out any saved ids here, so we */
+ /* exec the real perl, substituting fd script for scriptname. */
+ /* (We pass script name as "subdir" of fd, which perl will grok.) */
+ rewind(rsfp);
+ for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ;
+ if (!origargv[which])
+ croak("Permission denied");
+ (void)sprintf(buf, "/dev/fd/%d/%.127s", fileno(rsfp), origargv[which]);
+ origargv[which] = buf;
+
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */
+#endif
+
+ (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel);
+ execv(tokenbuf, origargv); /* try again */
+ croak("Can't do setuid\n");
#endif /* IAMSUID */
#else /* !DOSUID */
if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */
#ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
- fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */
+ Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */
if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID)
||
(egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID)
}
static void
-init_debugger()
+init_ids()
{
- GV* tmpgv;
+ uid = (int)getuid();
+ euid = (int)geteuid();
+ gid = (int)getgid();
+ egid = (int)getegid();
+#ifdef VMS
+ uid |= gid << 16;
+ euid |= egid << 16;
+#endif
+ tainting |= (uid && (euid != uid || egid != gid));
+}
- debstash = newHV();
- GvHV(gv_fetchpv("_DB",TRUE)) = debstash;
+static void
+init_debugger()
+{
curstash = debstash;
- dbargs = GvAV(gv_AVadd((tmpgv = gv_fetchpv("args",TRUE))));
- SvMULTI_on(tmpgv);
+ dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
AvREAL_off(dbargs);
- DBgv = gv_fetchpv("DB",TRUE);
- SvMULTI_on(DBgv);
- DBline = gv_fetchpv("dbline",TRUE);
- SvMULTI_on(DBline);
- DBsub = gv_HVadd(tmpgv = gv_fetchpv("sub",TRUE));
- SvMULTI_on(tmpgv);
- DBsingle = GvSV((tmpgv = gv_fetchpv("single",TRUE)));
- SvMULTI_on(tmpgv);
- DBtrace = GvSV((tmpgv = gv_fetchpv("trace",TRUE)));
- SvMULTI_on(tmpgv);
- DBsignal = GvSV((tmpgv = gv_fetchpv("signal",TRUE)));
- SvMULTI_on(tmpgv);
+ DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
+ DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
+ DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
+ DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBsingle, 0);
+ DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBtrace, 0);
+ DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBsignal, 0);
curstash = defstash;
}
static void
-init_stack()
+init_stacks()
{
stack = newAV();
mainstack = stack; /* remember in case we switch stacks */
AvREAL_off(stack); /* not a real array */
- av_fill(stack,127); av_fill(stack,-1); /* preextend stack */
+ av_extend(stack,127);
stack_base = AvARRAY(stack);
stack_sp = stack_base;
- stack_max = stack_base + 128;
+ stack_max = stack_base + 127;
- New(54,markstack,64,int);
+ New(54,markstack,64,I32);
markstack_ptr = markstack;
markstack_max = markstack + 64;
- New(54,scopestack,32,int);
+ New(54,scopestack,32,I32);
scopestack_ix = 0;
scopestack_max = 32;
New(54,retstack,16,OP*);
retstack_ix = 0;
retstack_max = 16;
-}
-static void
-init_lexer()
-{
- bufend = bufptr = SvPV(linestr, na);
- subname = newSVpv("main",4);
- lex_start(); /* we never leave */
-}
+ cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */
+ New(50,cxstack,cxstack_max + 1,CONTEXT);
+ cxstack_ix = -1;
+
+ New(50,tmps_stack,128,SV*);
+ tmps_ix = -1;
+ tmps_max = 128;
-static void
-init_context_stack()
-{
- New(50,cxstack,128,CONTEXT);
DEBUG( {
New(51,debname,128,char);
New(52,debdelim,128,char);
} )
}
+static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
+static void
+init_lexer()
+{
+ tmpfp = rsfp;
+
+ lex_start(linestr);
+ rsfp = tmpfp;
+ subname = newSVpv("main",4);
+}
+
static void
init_predump_symbols()
{
GV *tmpgv;
-
- sv_setpvn(GvSV(gv_fetchpv("\"", TRUE)), " ", 1);
-
- stdingv = gv_fetchpv("STDIN",TRUE);
- SvMULTI_on(stdingv);
- if (!GvIO(stdingv))
- GvIO(stdingv) = newIO();
- GvIO(stdingv)->ifp = stdin;
- tmpgv = gv_fetchpv("stdin",TRUE);
- GvIO(tmpgv) = GvIO(stdingv);
- SvMULTI_on(tmpgv);
-
- tmpgv = gv_fetchpv("STDOUT",TRUE);
- SvMULTI_on(tmpgv);
- if (!GvIO(tmpgv))
- GvIO(tmpgv) = newIO();
- GvIO(tmpgv)->ofp = GvIO(tmpgv)->ifp = stdout;
- defoutgv = tmpgv;
- tmpgv = gv_fetchpv("stdout",TRUE);
- GvIO(tmpgv) = GvIO(defoutgv);
- SvMULTI_on(tmpgv);
-
- curoutgv = gv_fetchpv("STDERR",TRUE);
- SvMULTI_on(curoutgv);
- if (!GvIO(curoutgv))
- GvIO(curoutgv) = newIO();
- GvIO(curoutgv)->ofp = GvIO(curoutgv)->ifp = stderr;
- tmpgv = gv_fetchpv("stderr",TRUE);
- GvIO(tmpgv) = GvIO(curoutgv);
- SvMULTI_on(tmpgv);
- curoutgv = defoutgv; /* switch back to STDOUT */
+ GV *othergv;
+
+ sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1);
+
+ stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
+ GvMULTI_on(stdingv);
+ IoIFP(GvIOp(stdingv)) = stdin;
+ tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv));
+
+ tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
+ GvMULTI_on(tmpgv);
+ IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout;
+ setdefout(tmpgv);
+ tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv));
+
+ othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
+ GvMULTI_on(othergv);
+ IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr;
+ tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
statname = NEWSV(66,0); /* last filename we did stat on */
+
+ osname = savepv(OSNAME);
}
static void
}
if (s = strchr(argv[0], '=')) {
*s++ = '\0';
- sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE)),s);
+ sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
}
else
- sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE)),1);
+ sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
}
}
toptarget = NEWSV(0,0);
formtarget = bodytarget;
tainted = 1;
- if (tmpgv = gv_fetchpv("0",TRUE)) {
+ if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
sv_setpv(GvSV(tmpgv),origfilename);
magicname("0", "0", 1);
}
- if (tmpgv = gv_fetchpv("\024",TRUE))
+ if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV))
time(&basetime);
- if (tmpgv = gv_fetchpv("\030",TRUE))
+ if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
sv_setpv(GvSV(tmpgv),origargv[0]);
- if (argvgv = gv_fetchpv("ARGV",TRUE)) {
- SvMULTI_on(argvgv);
+ if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
+ GvMULTI_on(argvgv);
(void)gv_AVadd(argvgv);
av_clear(GvAVn(argvgv));
for (; argc > 0; argc--,argv++) {
- (void)av_push(GvAVn(argvgv),newSVpv(argv[0],0));
+ av_push(GvAVn(argvgv),newSVpv(argv[0],0));
}
}
- if (envgv = gv_fetchpv("ENV",TRUE)) {
+ if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
HV *hv;
- SvMULTI_on(envgv);
+ GvMULTI_on(envgv);
hv = GvHVn(envgv);
hv_clear(hv);
- hv_magic(hv, envgv, 'E');
- if (env != environ)
+#ifndef VMS /* VMS doesn't have environ array */
+ /* Note that if the supplied env parameter is actually a copy
+ of the global environ then it may now point to free'd memory
+ if the environment has been modified since. To avoid this
+ problem we treat env==NULL as meaning 'use the default'
+ */
+ if (!env)
+ env = environ;
+ if (env != environ) {
environ[0] = Nullch;
+ hv_magic(hv, envgv, 'E');
+ }
for (; *env; env++) {
if (!(s = strchr(*env,'=')))
continue;
*s++ = '\0';
sv = newSVpv(s--,0);
+ sv_magic(sv, sv, 'e', *env, s - *env);
(void)hv_store(hv, *env, s - *env, sv, 0);
*s = '=';
}
+#endif
+#ifdef DYNAMIC_ENV_FETCH
+ HvNAME(hv) = savepv(ENV_HV_NAME);
+#endif
+ hv_magic(hv, envgv, 'E');
}
tainted = 0;
- if (tmpgv = gv_fetchpv("$",TRUE))
+ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
sv_setiv(GvSV(tmpgv),(I32)getpid());
- if (dowarn)
- gv_check(defstash);
}
static void
init_perllib()
{
- if (!tainting)
- incpush(getenv("PERLLIB"));
+ char *s;
+ if (!tainting) {
+ s = getenv("PERL5LIB");
+ if (s)
+ incpush(s);
+ else
+ incpush(getenv("PERLLIB"));
+ }
-#ifndef PRIVLIB
-#define PRIVLIB "/usr/local/lib/perl"
+#ifdef APPLLIB_EXP
+ incpush(APPLLIB_EXP);
#endif
- incpush(PRIVLIB);
- (void)av_push(GvAVn(incgv),newSVpv(".",1));
+
+#ifdef ARCHLIB_EXP
+ incpush(ARCHLIB_EXP);
+#endif
+#ifndef PRIVLIB_EXP
+#define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+ incpush(PRIVLIB_EXP);
+
+#ifdef SITEARCH_EXP
+ incpush(SITEARCH_EXP);
+#endif
+#ifdef SITELIB_EXP
+ incpush(SITELIB_EXP);
+#endif
+#ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */
+ incpush(OLDARCHLIB_EXP);
+#endif
+
+ if (!tainting)
+ incpush(".");
}
void
calllist(list)
AV* list;
{
- I32 i;
- I32 fill = AvFILL(list);
- jmp_buf oldtop;
- I32 sp = stack_sp - stack_base;
-
- av_store(stack, ++sp, Nullsv); /* reserve spot for 1st return arg */
- Copy(top_env, oldtop, 1, jmp_buf);
-
- for (i = 0; i <= fill; i++)
- {
- GV *gv = (GV*)av_shift(list);
- SV* tmpsv = NEWSV(0,0);
-
- if (gv && GvCV(gv)) {
- gv_efullname(tmpsv, gv);
- if (setjmp(top_env)) {
+ Sigjmp_buf oldtop;
+ STRLEN len;
+ line_t oldline = curcop->cop_line;
+
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+ while (AvFILL(list) >= 0) {
+ CV *cv = (CV*)av_shift(list);
+
+ SAVEFREESV(cv);
+
+ switch (Sigsetjmp(top_env,1)) {
+ case 0: {
+ SV* atsv = GvSV(errgv);
+ PUSHMARK(stack_sp);
+ perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
+ (void)SvPV(atsv, len);
+ if (len) {
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ if (list == beginav)
+ sv_catpv(atsv, "BEGIN failed--compilation aborted");
+ else
+ sv_catpv(atsv, "END failed--cleanup aborted");
+ croak("%s", SvPVX(atsv));
+ }
+ }
+ break;
+ case 1:
+#ifdef VMS
+ statusvalue = 255; /* XXX I don't think we use 1 anymore. */
+#else
+ statusvalue = 1;
+#endif
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ curstash = defstash;
+ if (endav)
+ calllist(endav);
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ if (statusvalue) {
if (list == beginav)
- exit(1);
+ croak("BEGIN failed--compilation aborted");
+ else
+ croak("END failed--cleanup aborted");
}
- else {
- perl_callback(SvPVX(tmpsv), sp, G_SCALAR, 0, 0);
+ my_exit(statusvalue);
+ /* NOTREACHED */
+ return;
+ case 3:
+ if (!restartop) {
+ fprintf(stderr, "panic: restartop\n");
+ FREETMPS;
+ break;
}
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ Siglongjmp(top_env, 3);
}
- sv_free(tmpsv);
- sv_free(gv);
}
- Copy(oldtop, top_env, 1, jmp_buf);
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
}
https://perl5.git.perl.org / perl5.git / blobdiff