_careful_ (feature) sync with oksh:
(3 weeks, 5 days ago) by millert Make ulimit able to get and set multiple limits in a single invocation like bash and zsh do. Requested by espie@, OK deraadt@
This commit is contained in:
tg
parent
92eb2aee78
commit
6c6be2a87e
4
check.t
4
check.t
@ -1,4 +1,4 @@
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# $MirOS: src/bin/mksh/check.t,v 1.174 2008/04/11 19:55:23 tg Exp $
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# $MirOS: src/bin/mksh/check.t,v 1.175 2008/04/16 21:56:00 tg Exp $
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# $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
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@ -7,7 +7,7 @@
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# http://www.research.att.com/~gsf/public/ifs.sh
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expected-stdout:
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@(#)MIRBSD KSH R33 2008/04/11
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@(#)MIRBSD KSH R33 2008/04/16
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description:
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Check version of shell.
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category: pdksh
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307
funcs.c
307
funcs.c
@ -1,11 +1,11 @@
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/* $OpenBSD: c_ksh.c,v 1.30 2007/08/02 10:50:25 fgsch Exp $ */
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/* $OpenBSD: c_sh.c,v 1.37 2007/09/03 13:54:23 otto Exp $ */
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/* $OpenBSD: c_test.c,v 1.17 2005/03/30 17:16:37 deraadt Exp $ */
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/* $OpenBSD: c_ulimit.c,v 1.16 2006/11/20 21:53:39 miod Exp $ */
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/* $OpenBSD: c_ulimit.c,v 1.17 2008/03/21 12:51:19 millert Exp $ */
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.75 2008/04/01 22:20:19 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.76 2008/04/16 21:56:01 tg Exp $");
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/* A leading = means assignments before command are kept;
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* a leading * means a POSIX special builtin;
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@ -2853,89 +2853,79 @@ ptest_error(Test_env *te, int ofs, const char *msg)
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#define SOFT 0x1
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#define HARD 0x2
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struct limits {
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const char *name;
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int resource; /* resource to get/set */
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int factor; /* multiply by to get rlim_{cur,max} values */
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char option;
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};
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static void print_ulimit(const struct limits *, int);
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static int set_ulimit(const struct limits *, const char *, int);
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int
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c_ulimit(const char **wp)
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{
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static const struct limits {
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const char *name;
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enum { RLIMIT, ULIMIT } which;
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int gcmd; /* get command */
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int scmd; /* set command (or -1, if no set command) */
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int factor; /* multiply by to get rlim_{cur,max} values */
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char option;
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} limits[] = {
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/* Do not use options -H, -S or -a */
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#ifdef RLIMIT_CORE
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{ "coredump(blocks)", RLIMIT, RLIMIT_CORE, RLIMIT_CORE,
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512, 'c' },
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#endif
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#ifdef RLIMIT_DATA
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{ "data(KiB)", RLIMIT, RLIMIT_DATA, RLIMIT_DATA,
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1024, 'd' },
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static const struct limits limits[] = {
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/* do not use options -H, -S or -a or change the order */
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#ifdef RLIMIT_CPU
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{ "time(cpu-seconds)", RLIMIT_CPU, 1, 't' },
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#endif
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#ifdef RLIMIT_FSIZE
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{ "file(blocks)", RLIMIT, RLIMIT_FSIZE, RLIMIT_FSIZE,
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512, 'f' },
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{ "file(blocks)", RLIMIT_FSIZE, 512, 'f' },
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#endif
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#ifdef RLIMIT_LOCKS
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{ "flocks", RLIMIT, RLIMIT_LOCKS, RLIMIT_LOCKS,
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-1, 'L' },
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#ifdef RLIMIT_CORE
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{ "coredump(blocks)", RLIMIT_CORE, 512, 'c' },
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#endif
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#ifdef RLIMIT_MEMLOCK
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{ "lockedmem(KiB)", RLIMIT, RLIMIT_MEMLOCK, RLIMIT_MEMLOCK,
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1024, 'l' },
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#endif
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#ifdef RLIMIT_RSS
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{ "memory(KiB)", RLIMIT, RLIMIT_RSS, RLIMIT_RSS,
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1024, 'm' },
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#endif
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#ifdef RLIMIT_NOFILE
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{ "nofiles(descriptors)", RLIMIT, RLIMIT_NOFILE, RLIMIT_NOFILE,
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1, 'n' },
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#endif
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#ifdef RLIMIT_NPROC
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{ "processes", RLIMIT, RLIMIT_NPROC, RLIMIT_NPROC,
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1, 'p' },
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#ifdef RLIMIT_DATA
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{ "data(KiB)", RLIMIT_DATA, 1024, 'd' },
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#endif
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#ifdef RLIMIT_STACK
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{ "stack(KiB)", RLIMIT, RLIMIT_STACK, RLIMIT_STACK,
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1024, 's' },
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{ "stack(KiB)", RLIMIT_STACK, 1024, 's' },
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#endif
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#ifdef RLIMIT_TIME
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{ "humantime(seconds)", RLIMIT, RLIMIT_TIME, RLIMIT_TIME,
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1, 'T' },
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#ifdef RLIMIT_MEMLOCK
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{ "lockedmem(KiB)", RLIMIT_MEMLOCK, 1024, 'l' },
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#endif
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#ifdef RLIMIT_CPU
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{ "time(cpu-seconds)", RLIMIT, RLIMIT_CPU, RLIMIT_CPU,
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1, 't' },
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#ifdef RLIMIT_RSS
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{ "memory(KiB)", RLIMIT_RSS, 1024, 'm' },
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#endif
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#ifdef RLIMIT_NOFILE
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{ "nofiles(descriptors)", RLIMIT_NOFILE, 1, 'n' },
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#endif
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#ifdef RLIMIT_NPROC
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{ "processes", RLIMIT_NPROC, 1, 'p' },
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#endif
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#ifdef RLIMIT_VMEM
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{ "vmemory(KiB)", RLIMIT, RLIMIT_VMEM, RLIMIT_VMEM,
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1024, 'v' },
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{ "vmemory(KiB)", RLIMIT_VMEM, 1024, 'v' },
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#endif
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#ifdef RLIMIT_SWAP
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{ "swap(KiB)", RLIMIT, RLIMIT_SWAP, RLIMIT_SWAP,
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1024, 'w' },
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{ "swap(KiB)", RLIMIT_SWAP, 1024, 'w' },
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#endif
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{ NULL, RLIMIT, 0, 0, 0, 0 }
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#ifdef RLIMIT_LOCKS
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{ "flocks", RLIMIT_LOCKS, -1, 'L' },
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#endif
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#ifdef RLIMIT_TIME
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{ "humantime(seconds)", RLIMIT_TIME, 1, 'T' },
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#endif
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{ NULL, 0, 0, 0 }
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};
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static char opts[3 + NELEM(limits)];
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rlim_t val = (rlim_t)0;
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int how = SOFT | HARD, optc, what;
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bool all = false, set;
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static char opts[4 + NELEM(limits) * 2];
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int how = SOFT | HARD, optc;
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bool all = false;
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const struct limits *l;
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struct rlimit limit;
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if (!opts[0]) {
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/* build options string on first call - yuck */
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char *p = opts;
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*p++ = 'H'; *p++ = 'S'; *p++ = 'a';
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for (l = limits; l->name; l++)
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for (l = limits; l->name; l++) {
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*p++ = l->option;
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*p++ = '#';
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}
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*p = '\0';
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}
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what = 'f';
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/* first check for -a, -H and -S */
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while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
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switch (optc) {
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case 'H':
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@ -2948,107 +2938,134 @@ c_ulimit(const char **wp)
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all = true;
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break;
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case '?':
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return 1;
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return (1);
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default:
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what = optc;
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break;
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}
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for (l = limits; l->name && l->option != what; l++)
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;
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if (!l->name) {
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internal_warningf("ulimit: %c", what);
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return 1;
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if (wp[builtin_opt.optind] != NULL) {
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bi_errorf("usage: ulimit [-acdfHLlmnpSsTtvw] [value]");
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return (1);
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}
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/* then parse and act on the actual limits, one at a time */
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ksh_getopt_reset(&builtin_opt, GF_ERROR);
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while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
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switch (optc) {
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case 'a':
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case 'H':
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case 'S':
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break;
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case '?':
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return (1);
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default:
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for (l = limits; l->name && l->option != optc; l++)
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;
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if (!l->name) {
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internal_warningf("ulimit: %c", optc);
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return (1);
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}
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if (!builtin_opt.optarg)
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print_ulimit(l, how);
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else if (set_ulimit(l, builtin_opt.optarg, how))
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return (1);
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break;
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}
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wp += builtin_opt.optind;
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if ((set = *wp ? true : false)) {
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if (all || wp[1]) {
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bi_errorf("too many arguments");
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return 1;
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}
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if (strcmp(wp[0], "unlimited") == 0)
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val = (rlim_t)RLIM_INFINITY;
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else {
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long rval;
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if (!evaluate(wp[0], &rval, KSH_RETURN_ERROR, false))
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return 1;
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/* Avoid problems caused by typos that
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* evaluate misses due to evaluating unset
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* parameters to 0...
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* If this causes problems, will have to
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* add parameter to evaluate() to control
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* if unset params are 0 or an error.
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*/
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if (!rval && !ksh_isdigit(wp[0][0])) {
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bi_errorf("invalid limit: %s", wp[0]);
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return 1;
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}
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val = (rlim_t)((rlim_t)rval * l->factor);
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}
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}
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if (all) {
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if (all)
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for (l = limits; l->name; l++) {
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if (l->which == RLIMIT) {
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#ifdef RLIMIT_LOCKS
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if (getrlimit(l->gcmd, &limit) < 0)
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if ((errno == EINVAL) &&
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(l->gcmd == RLIMIT_LOCKS)) {
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limit.rlim_cur = RLIM_INFINITY;
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limit.rlim_max = RLIM_INFINITY;
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}
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#else
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getrlimit(l->gcmd, &limit);
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#endif
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if (how & SOFT)
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val = limit.rlim_cur;
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else if (how & HARD)
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val = limit.rlim_max;
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}
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shprintf("%-20s ", l->name);
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if (val == (rlim_t)RLIM_INFINITY)
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shf_puts("unlimited\n", shl_stdout);
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else {
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val = (rlim_t)(val / l->factor);
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shprintf("%ld\n", (long)val);
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}
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}
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return 0;
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}
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if (l->which == RLIMIT) {
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getrlimit(l->gcmd, &limit);
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if (set) {
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if (how & SOFT)
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limit.rlim_cur = val;
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if (how & HARD)
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limit.rlim_max = val;
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if (setrlimit(l->scmd, &limit) < 0) {
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how = errno;
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if (how == EPERM)
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bi_errorf("exceeds allowable limit");
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else
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bi_errorf("bad limit: %s",
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strerror(how));
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return 1;
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}
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} else {
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if (how & SOFT)
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val = limit.rlim_cur;
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else if (how & HARD)
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val = limit.rlim_max;
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}
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}
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if (!set) {
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if (val == (rlim_t)RLIM_INFINITY)
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shf_puts("unlimited\n", shl_stdout);
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else {
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val = (rlim_t)(val / l->factor);
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shprintf("%ld\n", (long)val);
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print_ulimit(l, how);
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}
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else if (builtin_opt.optind == 1) {
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/* no limit specified, use file size as default */
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#ifndef RLIMIT_FSIZE
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internal_warningf("ulimit: need argument");
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return (1);
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#else
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#ifdef RLIMIT_CPU
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l = &limits[1];
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#else
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l = &limits[0];
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#endif
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if (!wp[0])
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print_ulimit(l, how);
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else if (set_ulimit(l, wp[0], how))
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return(1);
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#endif
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}
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return (0);
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}
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static int
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set_ulimit(const struct limits *l, const char *v, int how)
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{
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rlim_t val = (rlim_t)0;
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struct rlimit limit;
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if (strcmp(v, "unlimited") == 0)
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val = (rlim_t)RLIM_INFINITY;
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else {
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long rval;
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if (!evaluate(v, &rval, KSH_RETURN_ERROR, false))
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return (1);
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/*
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* Avoid problems caused by typos that evaluate misses due
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* to evaluating unset parameters to 0...
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* If this causes problems, will have to add parameter to
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* evaluate() to control if unset params are 0 or an error.
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*/
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if (!rval && !ksh_isdigit(v[0])) {
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bi_errorf("invalid limit: %s", v);
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return (1);
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}
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val = (rlim_t)rval * l->factor;
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}
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if (getrlimit(l->resource, &limit) < 0) {
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/* some cannot be read, e.g. Linux RLIMIT_LOCKS */
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limit.rlim_cur = RLIM_INFINITY;
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limit.rlim_max = RLIM_INFINITY;
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}
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if (how & SOFT)
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limit.rlim_cur = val;
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if (how & HARD)
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limit.rlim_max = val;
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if (setrlimit(l->resource, &limit) < 0) {
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if (errno == EPERM)
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bi_errorf("%s exceeds allowable limit", l->name);
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else
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bi_errorf("bad %s limit: %s", l->name, strerror(errno));
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return (1);
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}
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return (0);
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}
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static void
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print_ulimit(const struct limits *l, int how)
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{
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rlim_t val = (rlim_t)0;
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struct rlimit limit;
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if (getrlimit(l->resource, &limit)) {
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shf_puts("unknown\n", shl_stdout);
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return;
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}
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if (how & SOFT)
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val = limit.rlim_cur;
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else if (how & HARD)
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val = limit.rlim_max;
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if (val == RLIM_INFINITY)
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shf_puts("unlimited\n", shl_stdout);
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else {
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val /= l->factor;
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shprintf("%ld\n", (long)val);
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}
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}
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int
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c_rename(const char **wp)
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{
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19
misc.c
19
misc.c
@ -1,4 +1,4 @@
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/* $OpenBSD: misc.c,v 1.32 2007/08/02 11:05:54 fgsch Exp $ */
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/* $OpenBSD: misc.c,v 1.33 2008/03/21 12:51:19 millert Exp $ */
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/* $OpenBSD: path.c,v 1.12 2005/03/30 17:16:37 deraadt Exp $ */
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#include "sh.h"
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@ -6,7 +6,7 @@
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#include <grp.h>
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#endif
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__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.72 2008/04/11 19:55:23 tg Exp $\t"
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__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.73 2008/04/16 21:56:02 tg Exp $\t"
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MKSH_SH_H_ID);
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#undef USE_CHVT
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@ -810,10 +810,10 @@ ksh_getopt_reset(Getopt *go, int flags)
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* the option is missing).
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* Used for 'read -u2', 'print -u2' and fc -40.
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* - '#' is like ':' in options, expect that the argument is optional
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* and must start with a digit. If the argument doesn't start with a
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* digit, it is assumed to be missing and normal option processing
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* continues (optarg is set to 0 if the option is missing).
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* Used for 'typeset -LZ4'.
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* and must start with a digit or be the string "unlimited". If the
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* argument doesn't match, it is assumed to be missing and normal option
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* processing continues (optarg is set to 0 if the option is missing).
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* Used for 'typeset -LZ4' and 'ulimit -adunlimited'.
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* - accepts +c as well as -c IF the GF_PLUSOPT flag is present. If an
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* option starting with + is accepted, the GI_PLUS flag will be set
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* in go->info.
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@ -896,13 +896,16 @@ ksh_getopt(const char **argv, Getopt *go, const char *optionsp)
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* argument is missing.
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*/
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if (argv[go->optind - 1][go->p]) {
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if (ksh_isdigit(argv[go->optind - 1][go->p])) {
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if (ksh_isdigit(argv[go->optind - 1][go->p]) ||
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!strcmp(&argv[go->optind - 1][go->p], "unlimited")) {
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go->optarg = argv[go->optind - 1] + go->p;
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go->p = 0;
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} else
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go->optarg = NULL;
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} else {
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if (argv[go->optind] && ksh_isdigit(argv[go->optind][0])) {
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if (argv[go->optind] &&
|
||||
(ksh_isdigit(argv[go->optind][0]) ||
|
||||
!strcmp(argv[go->optind], "unlimited"))) {
|
||||
go->optarg = argv[go->optind++];
|
||||
go->p = 0;
|
||||
} else
|
||||
|
||||
15
mksh.1
15
mksh.1
@ -1,5 +1,5 @@
|
||||
.\" $MirOS: src/bin/mksh/mksh.1,v 1.115 2008/04/01 21:07:20 tg Exp $
|
||||
.\" $OpenBSD: ksh.1,v 1.120 2007/05/31 20:47:44 otto Exp $
|
||||
.\" $MirOS: src/bin/mksh/mksh.1,v 1.116 2008/04/16 21:56:02 tg Exp $
|
||||
.\" $OpenBSD: ksh.1,v 1.121 2008/03/21 12:51:19 millert Exp $
|
||||
.\"-
|
||||
.\" Try to make GNU groff and AT&T nroff more compatible
|
||||
.\" * ` generates ‘ in groff, so use \`
|
||||
@ -30,7 +30,7 @@
|
||||
.el .xD \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8
|
||||
..
|
||||
.\"-
|
||||
.Dd $Mdocdate: April 1 2008 $
|
||||
.Dd $Mdocdate: April 16 2008 $
|
||||
.Dt MKSH 1
|
||||
.Os MirBSD
|
||||
.Sh NAME
|
||||
@ -4077,15 +4077,16 @@ unless they are also given on the same command line.
|
||||
.Pp
|
||||
.It Xo
|
||||
.Ic ulimit
|
||||
.Op Fl acdfHLlmnpSsTtvw
|
||||
.Op Ar value
|
||||
.Op Fl acdfHLlmnpSsTtvw Op Ar value
|
||||
.Ar ...
|
||||
.Xc
|
||||
Display or set process limits.
|
||||
If no options are used, the file size limit
|
||||
.Pq Fl f
|
||||
is assumed.
|
||||
.Ar value ,
|
||||
if specified, may be either an arithmetic expression or the word
|
||||
if specified, may be either an arithmetic expression starting with a
|
||||
number or the word
|
||||
.Dq unlimited .
|
||||
The limits affect the shell and any processes created by the shell after a
|
||||
limit is imposed.
|
||||
@ -5454,7 +5455,7 @@ and many other persons, and is currently maintained by
|
||||
.An Thorsten Glaser Aq tg@mirbsd.de .
|
||||
.Sh BUGS
|
||||
This document attempts to describe
|
||||
.Nm mksh\ R33c
|
||||
.Nm mksh\ R34
|
||||
and up,
|
||||
compiled without any options impacting functionality, such as
|
||||
.Dv MKSH_SMALL ,
|
||||
|
||||
4
sh.h
4
sh.h
@ -8,8 +8,8 @@
|
||||
/* $OpenBSD: c_test.h,v 1.4 2004/12/20 11:34:26 otto Exp $ */
|
||||
/* $OpenBSD: tty.h,v 1.5 2004/12/20 11:34:26 otto Exp $ */
|
||||
|
||||
#define MKSH_SH_H_ID "$MirOS: src/bin/mksh/sh.h,v 1.204 2008/04/11 19:55:24 tg Exp $"
|
||||
#define MKSH_VERSION "R33 2008/04/11"
|
||||
#define MKSH_SH_H_ID "$MirOS: src/bin/mksh/sh.h,v 1.205 2008/04/16 21:56:03 tg Exp $"
|
||||
#define MKSH_VERSION "R33 2008/04/16"
|
||||
|
||||
#if HAVE_SYS_PARAM_H
|
||||
#include <sys/param.h>
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user