diff options
author | Todd C. Miller <millert@cvs.openbsd.org> | 1999-04-29 22:53:00 +0000 |
---|---|---|
committer | Todd C. Miller <millert@cvs.openbsd.org> | 1999-04-29 22:53:00 +0000 |
commit | c25c5c3c87d89b68324dc98b7c8aaabc750c7cec (patch) | |
tree | 2943af9b1f84d88d863a9ba36a234877561bf5f0 /gnu/usr.bin/perl/taint.c | |
parent | 37583d269f066aa8aa04ea18126b188d12257e6d (diff) |
perl5.005_03 (stock)
Diffstat (limited to 'gnu/usr.bin/perl/taint.c')
-rw-r--r-- | gnu/usr.bin/perl/taint.c | 52 |
1 files changed, 31 insertions, 21 deletions
diff --git a/gnu/usr.bin/perl/taint.c b/gnu/usr.bin/perl/taint.c index cd3ec8e2813..d5f83399502 100644 --- a/gnu/usr.bin/perl/taint.c +++ b/gnu/usr.bin/perl/taint.c @@ -8,31 +8,32 @@ #include "perl.h" void -taint_proper(f, s) -const char *f; -char *s; +taint_proper(const char *f, char *s) { + dTHR; /* just for taint */ char *ug; DEBUG_u(PerlIO_printf(Perl_debug_log, - "%s %d %d %d\n", s, tainted, uid, euid)); + "%s %d %d %d\n", s, PL_tainted, PL_uid, PL_euid)); - if (tainted) { - if (euid != uid) + if (PL_tainted) { + if (!f) + f = no_security; + if (PL_euid != PL_uid) ug = " while running setuid"; - else if (egid != gid) + else if (PL_egid != PL_gid) ug = " while running setgid"; else ug = " while running with -T switch"; - if (!unsafe) + if (!PL_unsafe) croak(f, s, ug); - else if (dowarn) + else if (PL_dowarn) warn(f, s, ug); } } void -taint_env() +taint_env(void) { SV** svp; MAGIC* mg; @@ -45,38 +46,44 @@ taint_env() NULL }; - if (!envgv) + if(!PL_envgv) return; #ifdef VMS + { int i = 0; char name[10 + TYPE_DIGITS(int)] = "DCL$PATH"; while (1) { if (i) (void)sprintf(name,"DCL$PATH;%d", i); - svp = hv_fetch(GvHVn(envgv), name, strlen(name), FALSE); - if (!svp || *svp == &sv_undef) + svp = hv_fetch(GvHVn(PL_envgv), name, strlen(name), FALSE); + if (!svp || *svp == &PL_sv_undef) break; if (SvTAINTED(*svp)) { + dTHR; TAINT; taint_proper("Insecure %s%s", "$ENV{DCL$PATH}"); } if ((mg = mg_find(*svp, 'e')) && MgTAINTEDDIR(mg)) { + dTHR; TAINT; taint_proper("Insecure directory in %s%s", "$ENV{DCL$PATH}"); } i++; } + } #endif /* VMS */ - svp = hv_fetch(GvHVn(envgv),"PATH",4,FALSE); + svp = hv_fetch(GvHVn(PL_envgv),"PATH",4,FALSE); if (svp && *svp) { if (SvTAINTED(*svp)) { + dTHR; TAINT; taint_proper("Insecure %s%s", "$ENV{PATH}"); } if ((mg = mg_find(*svp, 'e')) && MgTAINTEDDIR(mg)) { + dTHR; TAINT; taint_proper("Insecure directory in %s%s", "$ENV{PATH}"); } @@ -84,12 +91,14 @@ taint_env() #ifndef VMS /* tainted $TERM is okay if it contains no metachars */ - svp = hv_fetch(GvHVn(envgv),"TERM",4,FALSE); + svp = hv_fetch(GvHVn(PL_envgv),"TERM",4,FALSE); if (svp && *svp && SvTAINTED(*svp)) { - bool was_tainted = tainted; - char *t = SvPV(*svp, na); - char *e = t + na; - tainted = was_tainted; + dTHR; /* just for taint */ + STRLEN n_a; + bool was_tainted = PL_tainted; + char *t = SvPV(*svp, n_a); + char *e = t + n_a; + PL_tainted = was_tainted; if (t < e && isALNUM(*t)) t++; while (t < e && (isALNUM(*t) || *t == '-' || *t == ':')) @@ -102,8 +111,9 @@ taint_env() #endif /* !VMS */ for (e = misc_env; *e; e++) { - svp = hv_fetch(GvHVn(envgv), *e, strlen(*e), FALSE); - if (svp && *svp != &sv_undef && SvTAINTED(*svp)) { + svp = hv_fetch(GvHVn(PL_envgv), *e, strlen(*e), FALSE); + if (svp && *svp != &PL_sv_undef && SvTAINTED(*svp)) { + dTHR; /* just for taint */ TAINT; taint_proper("Insecure $ENV{%s}%s", *e); } |