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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_proper(f, s)
const char *f;
char *s;
{
char *ug;
if (tainted) {
DEBUG_u(PerlIO_printf(PerlIO_stderr(),
"%s %d %d %d\n", s, tainted, uid, euid));
if (euid != uid)
ug = " while running setuid";
else if (egid != gid)
ug = " while running setgid";
else
ug = " while running with -T switch";
if (!unsafe)
croak(f, s, ug);
else if (dowarn)
warn(f, s, ug);
}
}
void
taint_env()
{
SV** svp;
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))
{
TAINT;
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)
{
TAINT;
taint_proper("Insecure %s%s", "$ENV{IFS}");
}
}
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