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/*
* "...we will have peace, when you and all your works have perished--and
* the works of your dark master to whom you would deliver us. You are a
* liar, Saruman, and a corrupter of men's hearts." --Theoden
*/
#include "EXTERN.h"
#include "perl.h"
void
taint_not(s)
char *s;
{
if (euid != uid)
croak("No %s allowed while running setuid", s);
if (egid != gid)
croak("No %s allowed while running setgid", s);
}
void
taint_proper(f, s)
char *f;
char *s;
{
if (tainting) {
DEBUG_u(fprintf(stderr,"%s %d %d %d\n",s,tainted,uid, euid));
if (tainted) {
char *ug = 0;
if (euid != uid)
ug = " while running setuid";
else if (egid != gid)
ug = " while running setgid";
else if (tainting)
ug = " while running with -T switch";
if (ug) {
if (!unsafe)
croak(f, s, ug);
else if (dowarn)
warn(f, s, ug);
}
}
}
}
void
taint_env()
{
SV** svp;
if (tainting) {
MAGIC *mg = 0;
svp = hv_fetch(GvHVn(envgv),"PATH",4,FALSE);
if (!svp || *svp == &sv_undef ||
((mg = mg_find(*svp, 't')) && mg->mg_len & 1))
{
tainted = TRUE;
if (mg && MgTAINTEDDIR(mg))
taint_proper("Insecure directory in %s%s", "$ENV{PATH}");
else
taint_proper("Insecure %s%s", "$ENV{PATH}");
}
svp = hv_fetch(GvHVn(envgv),"IFS",3,FALSE);
if (svp && *svp != &sv_undef &&
(mg = mg_find(*svp, 't')) && mg->mg_len & 1)
{
tainted = TRUE;
taint_proper("Insecure %s%s", "$ENV{IFS}");
}
}
}
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