|
Lines 24-102
Link Here
|
| 24 |
/* |
24 |
/* |
| 25 |
* AIX-specific login initialisation |
25 |
* AIX-specific login initialisation |
| 26 |
*/ |
26 |
*/ |
| 27 |
void |
|
|
| 28 |
set_limit(char *user, char *soft, char *hard, int resource, int mult) |
| 29 |
{ |
| 30 |
struct rlimit rlim; |
| 31 |
int slim, hlim; |
| 32 |
|
| 33 |
getrlimit(resource, &rlim); |
| 34 |
|
| 35 |
slim = 0; |
| 36 |
if (getuserattr(user, soft, &slim, SEC_INT) != -1) { |
| 37 |
if (slim < 0) { |
| 38 |
rlim.rlim_cur = RLIM_INFINITY; |
| 39 |
} else if (slim != 0) { |
| 40 |
/* See the wackiness below */ |
| 41 |
if (rlim.rlim_cur == slim * mult) |
| 42 |
slim = 0; |
| 43 |
else |
| 44 |
rlim.rlim_cur = slim * mult; |
| 45 |
} |
| 46 |
} |
| 47 |
hlim = 0; |
| 48 |
if (getuserattr(user, hard, &hlim, SEC_INT) != -1) { |
| 49 |
if (hlim < 0) { |
| 50 |
rlim.rlim_max = RLIM_INFINITY; |
| 51 |
} else if (hlim != 0) { |
| 52 |
rlim.rlim_max = hlim * mult; |
| 53 |
} |
| 54 |
} |
| 55 |
|
| 56 |
/* |
| 57 |
* XXX For cpu and fsize the soft limit is set to the hard limit |
| 58 |
* if the hard limit is left at its default value and the soft limit |
| 59 |
* is changed from its default value, either by requesting it |
| 60 |
* (slim == 0) or by setting it to the current default. At least |
| 61 |
* that's how rlogind does it. If you're confused you're not alone. |
| 62 |
* Bug or feature? AIX 4.3.1.2 |
| 63 |
*/ |
| 64 |
if ((!strcmp(soft, "fsize") || !strcmp(soft, "cpu")) |
| 65 |
&& hlim == 0 && slim != 0) |
| 66 |
rlim.rlim_max = rlim.rlim_cur; |
| 67 |
/* A specified hard limit limits the soft limit */ |
| 68 |
else if (hlim > 0 && rlim.rlim_cur > rlim.rlim_max) |
| 69 |
rlim.rlim_cur = rlim.rlim_max; |
| 70 |
/* A soft limit can increase a hard limit */ |
| 71 |
else if (rlim.rlim_cur > rlim.rlim_max) |
| 72 |
rlim.rlim_max = rlim.rlim_cur; |
| 73 |
|
| 74 |
if (setrlimit(resource, &rlim) != 0) |
| 75 |
error("setrlimit(%.10s) failed: %.100s", soft, strerror(errno)); |
| 76 |
} |
| 77 |
|
27 |
|
| 78 |
void |
28 |
void |
| 79 |
set_limits_from_userattr(char *user) |
29 |
set_limits_from_userattr(char *user) |
| 80 |
{ |
30 |
{ |
| 81 |
int mask; |
31 |
/* |
| 82 |
char buf[16]; |
32 |
Set up the process credentials and process environment |
| 83 |
|
33 |
based on the AIX userdatabase. |
| 84 |
set_limit(user, S_UFSIZE, S_UFSIZE_HARD, RLIMIT_FSIZE, 512); |
34 |
*/ |
| 85 |
set_limit(user, S_UCPU, S_UCPU_HARD, RLIMIT_CPU, 1); |
35 |
if (setpcred (user, NULL)) |
| 86 |
set_limit(user, S_UDATA, S_UDATA_HARD, RLIMIT_DATA, 512); |
36 |
fatal("Failed to set AIX process credentials."); |
| 87 |
set_limit(user, S_USTACK, S_USTACK_HARD, RLIMIT_STACK, 512); |
|
|
| 88 |
set_limit(user, S_URSS, S_URSS_HARD, RLIMIT_RSS, 512); |
| 89 |
set_limit(user, S_UCORE, S_UCORE_HARD, RLIMIT_CORE, 512); |
| 90 |
#if defined(S_UNOFILE) |
| 91 |
set_limit(user, S_UNOFILE, S_UNOFILE_HARD, RLIMIT_NOFILE, 1); |
| 92 |
#endif |
| 93 |
|
| 94 |
if (getuserattr(user, S_UMASK, &mask, SEC_INT) != -1) { |
| 95 |
/* Convert decimal to octal */ |
| 96 |
(void) snprintf(buf, sizeof(buf), "%d", mask); |
| 97 |
if (sscanf(buf, "%o", &mask) == 1) |
| 98 |
umask(mask); |
| 99 |
} |
| 100 |
} |
37 |
} |
| 101 |
#endif /* defined(HAVE_GETUSERATTR) */ |
38 |
#endif /* defined(HAVE_GETUSERATTR) */ |
| 102 |
|
39 |
|