X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=taint.c;h=e163eb4135514914fb100482a78f51e17b8ec6b6;hb=ef54e1a45e68bbd668c909c97e266f20578d5516;hp=2dc43a4ab4f2bab0c0dcabf11baccfb0e16fc621;hpb=af702f0e61214b54e323d12ffeaff4e64bee707c;p=p5sagit%2Fp5-mst-13.2.git diff --git a/taint.c b/taint.c index 2dc43a4..e163eb4 100644 --- a/taint.c +++ b/taint.c @@ -14,19 +14,21 @@ taint_proper(const char *f, char *s) 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 = PL_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) - warn(f, s, ug); + else if (ckWARN(WARN_TAINT)) + warner(WARN_TAINT, f, s, ug); } } @@ -44,29 +46,36 @@ taint_env(void) NULL }; + 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; @@ -82,13 +91,14 @@ taint_env(void) #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)) { dTHR; /* just for taint */ - bool was_tainted = tainted; - char *t = SvPV(*svp, na); - char *e = t + na; - tainted = was_tainted; + 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 == ':')) @@ -101,8 +111,8 @@ taint_env(void) #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);