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Lines 24-102
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/* |
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/* |
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* AIX-specific login initialisation |
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* AIX-specific login initialisation |
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*/ |
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*/ |
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void |
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set_limit(char *user, char *soft, char *hard, int resource, int mult) |
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{ |
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struct rlimit rlim; |
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int slim, hlim; |
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getrlimit(resource, &rlim); |
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slim = 0; |
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if (getuserattr(user, soft, &slim, SEC_INT) != -1) { |
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if (slim < 0) { |
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rlim.rlim_cur = RLIM_INFINITY; |
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} else if (slim != 0) { |
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/* See the wackiness below */ |
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if (rlim.rlim_cur == slim * mult) |
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slim = 0; |
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else |
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rlim.rlim_cur = slim * mult; |
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} |
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} |
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hlim = 0; |
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if (getuserattr(user, hard, &hlim, SEC_INT) != -1) { |
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if (hlim < 0) { |
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rlim.rlim_max = RLIM_INFINITY; |
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} else if (hlim != 0) { |
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rlim.rlim_max = hlim * mult; |
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} |
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} |
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/* |
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* XXX For cpu and fsize the soft limit is set to the hard limit |
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* if the hard limit is left at its default value and the soft limit |
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* is changed from its default value, either by requesting it |
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* (slim == 0) or by setting it to the current default. At least |
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* that's how rlogind does it. If you're confused you're not alone. |
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* Bug or feature? AIX 4.3.1.2 |
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*/ |
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if ((!strcmp(soft, "fsize") || !strcmp(soft, "cpu")) |
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&& hlim == 0 && slim != 0) |
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rlim.rlim_max = rlim.rlim_cur; |
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/* A specified hard limit limits the soft limit */ |
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else if (hlim > 0 && rlim.rlim_cur > rlim.rlim_max) |
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rlim.rlim_cur = rlim.rlim_max; |
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/* A soft limit can increase a hard limit */ |
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else if (rlim.rlim_cur > rlim.rlim_max) |
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rlim.rlim_max = rlim.rlim_cur; |
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if (setrlimit(resource, &rlim) != 0) |
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error("setrlimit(%.10s) failed: %.100s", soft, strerror(errno)); |
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} |
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void |
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void |
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set_limits_from_userattr(char *user) |
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set_limits_from_userattr(char *user) |
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{ |
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{ |
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int mask; |
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/* |
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char buf[16]; |
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Set up the process credentials and process environment |
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based on the AIX userdatabase. |
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set_limit(user, S_UFSIZE, S_UFSIZE_HARD, RLIMIT_FSIZE, 512); |
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*/ |
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set_limit(user, S_UCPU, S_UCPU_HARD, RLIMIT_CPU, 1); |
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setpcred (user, NULL); |
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set_limit(user, S_UDATA, S_UDATA_HARD, RLIMIT_DATA, 512); |
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setpenv (user, PENV_INIT, NULL, NULL); |
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set_limit(user, S_USTACK, S_USTACK_HARD, RLIMIT_STACK, 512); |
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set_limit(user, S_URSS, S_URSS_HARD, RLIMIT_RSS, 512); |
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set_limit(user, S_UCORE, S_UCORE_HARD, RLIMIT_CORE, 512); |
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#if defined(S_UNOFILE) |
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set_limit(user, S_UNOFILE, S_UNOFILE_HARD, RLIMIT_NOFILE, 1); |
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#endif |
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if (getuserattr(user, S_UMASK, &mask, SEC_INT) != -1) { |
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/* Convert decimal to octal */ |
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(void) snprintf(buf, sizeof(buf), "%d", mask); |
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if (sscanf(buf, "%o", &mask) == 1) |
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umask(mask); |
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} |
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} |
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} |
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#endif /* defined(HAVE_GETUSERATTR) */ |
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#endif /* defined(HAVE_GETUSERATTR) */ |
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