Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* |
2 | * "...we will have peace, when you and all your works have perished--and | |
3 | * the works of your dark master to whom you would deliver us. You are a | |
4 | * liar, Saruman, and a corrupter of men's hearts." --Theoden | |
5 | */ | |
6 | ||
463ee0b2 LW |
7 | #include "EXTERN.h" |
8 | #include "perl.h" | |
9 | ||
10 | void | |
79072805 | 11 | taint_proper(f, s) |
71be2cbc | 12 | const char *f; |
79072805 LW |
13 | char *s; |
14 | { | |
bbce6d69 | 15 | char *ug; |
16 | ||
1e422769 | 17 | DEBUG_u(PerlIO_printf(PerlIO_stderr(), |
18 | "%s %d %d %d\n", s, tainted, uid, euid)); | |
19 | ||
bbce6d69 | 20 | if (tainted) { |
bbce6d69 | 21 | if (euid != uid) |
22 | ug = " while running setuid"; | |
23 | else if (egid != gid) | |
24 | ug = " while running setgid"; | |
25 | else | |
26 | ug = " while running with -T switch"; | |
27 | if (!unsafe) | |
28 | croak(f, s, ug); | |
29 | else if (dowarn) | |
30 | warn(f, s, ug); | |
79072805 LW |
31 | } |
32 | } | |
33 | ||
34 | void | |
35 | taint_env() | |
36 | { | |
37 | SV** svp; | |
1e422769 | 38 | MAGIC *mg; |
39 | ||
40 | #ifdef VMS | |
41 | int i = 0; | |
42 | char name[14] = "DCL$PATH"; | |
43 | ||
44 | while (1) { | |
45 | if (i) | |
46 | (void)sprintf(name,"DCL$PATH;%d", i); | |
47 | svp = hv_fetch(GvHVn(envgv), name, strlen(name), FALSE); | |
48 | if (!svp || *svp == &sv_undef) | |
49 | break; | |
50 | if (SvTAINTED(*svp)) { | |
51 | TAINT; | |
52 | taint_proper("Insecure %s%s", "$ENV{DCL$PATH}"); | |
53 | } | |
54 | if ((mg = mg_find(*svp, 'e')) && MgTAINTEDDIR(mg)) { | |
55 | TAINT; | |
56 | taint_proper("Insecure directory in %s%s", "$ENV{DCL$PATH}"); | |
57 | } | |
58 | i++; | |
59 | } | |
60 | #endif /* VMS */ | |
79072805 | 61 | |
bbce6d69 | 62 | svp = hv_fetch(GvHVn(envgv),"PATH",4,FALSE); |
1e422769 | 63 | if (svp && *svp) { |
64 | if (SvTAINTED(*svp)) { | |
65 | TAINT; | |
bbce6d69 | 66 | taint_proper("Insecure %s%s", "$ENV{PATH}"); |
1e422769 | 67 | } |
68 | if ((mg = mg_find(*svp, 'e')) && MgTAINTEDDIR(mg)) { | |
69 | TAINT; | |
70 | taint_proper("Insecure directory in %s%s", "$ENV{PATH}"); | |
71 | } | |
79072805 | 72 | } |
79072805 | 73 | |
bbce6d69 | 74 | svp = hv_fetch(GvHVn(envgv),"IFS",3,FALSE); |
1e422769 | 75 | if (svp && *svp != &sv_undef && SvTAINTED(*svp)) { |
bbce6d69 | 76 | TAINT; |
77 | taint_proper("Insecure %s%s", "$ENV{IFS}"); | |
78 | } | |
79 | } |