diff options
Diffstat (limited to 'shell/builtin_ulimit.c')
| -rw-r--r-- | shell/builtin_ulimit.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/shell/builtin_ulimit.c b/shell/builtin_ulimit.c deleted file mode 100644 index 9f9205eb6..000000000 --- a/shell/builtin_ulimit.c +++ /dev/null @@ -1,228 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * ulimit builtin - * - * Adapted from ash applet code - * - * This code, originally by Doug Gwyn, Doug Kingston, Eric Gisin, and - * Michael Rendell was ripped from pdksh 5.0.8 and hacked for use with - * ash by J.T. Conklin. - * - * Public domain. - * - * Copyright (c) 2010 Tobias Klauser - * Split from ash.c and slightly adapted. - * - * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. - */ -#include "libbb.h" -#include "builtin_ulimit.h" - - -struct limits { - uint8_t cmd; /* RLIMIT_xxx fit into it */ - uint8_t factor_shift; /* shift by to get rlim_{cur,max} values */ - char option; - const char *name; -}; - -static const struct limits limits_tbl[] = { -#ifdef RLIMIT_FSIZE - { RLIMIT_FSIZE, 9, 'f', "file size (blocks)" }, -#endif -#ifdef RLIMIT_CPU - { RLIMIT_CPU, 0, 't', "cpu time (seconds)" }, -#endif -#ifdef RLIMIT_DATA - { RLIMIT_DATA, 10, 'd', "data seg size (kb)" }, -#endif -#ifdef RLIMIT_STACK - { RLIMIT_STACK, 10, 's', "stack size (kb)" }, -#endif -#ifdef RLIMIT_CORE - { RLIMIT_CORE, 9, 'c', "core file size (blocks)" }, -#endif -#ifdef RLIMIT_RSS - { RLIMIT_RSS, 10, 'm', "resident set size (kb)" }, -#endif -#ifdef RLIMIT_MEMLOCK - { RLIMIT_MEMLOCK, 10, 'l', "locked memory (kb)" }, -#endif -#ifdef RLIMIT_NPROC - { RLIMIT_NPROC, 0, 'p', "processes" }, -#endif -#ifdef RLIMIT_NOFILE - { RLIMIT_NOFILE, 0, 'n', "file descriptors" }, -#endif -#ifdef RLIMIT_AS - { RLIMIT_AS, 10, 'v', "address space (kb)" }, -#endif -#ifdef RLIMIT_LOCKS - { RLIMIT_LOCKS, 0, 'w', "locks" }, -#endif -}; - -enum { - OPT_hard = (1 << 0), - OPT_soft = (1 << 1), -}; - -/* "-": treat args as parameters of option with ASCII code 1 */ -static const char ulimit_opt_string[] = "-HSa" -#ifdef RLIMIT_FSIZE - "f::" -#endif -#ifdef RLIMIT_CPU - "t::" -#endif -#ifdef RLIMIT_DATA - "d::" -#endif -#ifdef RLIMIT_STACK - "s::" -#endif -#ifdef RLIMIT_CORE - "c::" -#endif -#ifdef RLIMIT_RSS - "m::" -#endif -#ifdef RLIMIT_MEMLOCK - "l::" -#endif -#ifdef RLIMIT_NPROC - "p::" -#endif -#ifdef RLIMIT_NOFILE - "n::" -#endif -#ifdef RLIMIT_AS - "v::" -#endif -#ifdef RLIMIT_LOCKS - "w::" -#endif - ; - -static void printlim(unsigned opts, const struct rlimit *limit, - const struct limits *l) -{ - rlim_t val; - - val = limit->rlim_max; - if (!(opts & OPT_hard)) - val = limit->rlim_cur; - - if (val == RLIM_INFINITY) - printf("unlimited\n"); - else { - val >>= l->factor_shift; - printf("%llu\n", (long long) val); - } -} - -int FAST_FUNC shell_builtin_ulimit(char **argv) -{ - unsigned opts; - unsigned argc; - - /* We can't use getopt32: need to handle commands like - * ulimit 123 -c2 -l 456 - */ - - /* In case getopt was already called: - * reset the libc getopt() function, which keeps internal state. - */ -#ifdef __GLIBC__ - optind = 0; -#else /* BSD style */ - optind = 1; - /* optreset = 1; */ -#endif - /* optarg = NULL; opterr = 0; optopt = 0; - do we need this?? */ - - argc = 1; - while (argv[argc]) - argc++; - - opts = 0; - while (1) { - struct rlimit limit; - const struct limits *l; - int opt_char = getopt(argc, argv, ulimit_opt_string); - - if (opt_char == -1) - break; - if (opt_char == 'H') { - opts |= OPT_hard; - continue; - } - if (opt_char == 'S') { - opts |= OPT_soft; - continue; - } - - if (opt_char == 'a') { - for (l = limits_tbl; l != &limits_tbl[ARRAY_SIZE(limits_tbl)]; l++) { - getrlimit(l->cmd, &limit); - printf("-%c: %-30s ", l->option, l->name); - printlim(opts, &limit, l); - } - continue; - } - - if (opt_char == 1) - opt_char = 'f'; - for (l = limits_tbl; l != &limits_tbl[ARRAY_SIZE(limits_tbl)]; l++) { - if (opt_char == l->option) { - char *val_str; - - getrlimit(l->cmd, &limit); - - val_str = optarg; - if (!val_str && argv[optind] && argv[optind][0] != '-') - val_str = argv[optind++]; /* ++ skips NN in "-c NN" case */ - if (val_str) { - rlim_t val; - - if (strcmp(val_str, "unlimited") == 0) - val = RLIM_INFINITY; - else { - if (sizeof(val) == sizeof(int)) - val = bb_strtou(val_str, NULL, 10); - else if (sizeof(val) == sizeof(long)) - val = bb_strtoul(val_str, NULL, 10); - else - val = bb_strtoull(val_str, NULL, 10); - if (errno) { - bb_error_msg("bad number"); - return EXIT_FAILURE; - } - val <<= l->factor_shift; - } -//bb_error_msg("opt %c val_str:'%s' val:%lld", opt_char, val_str, (long long)val); - if (opts & OPT_hard) - limit.rlim_max = val; - if ((opts & OPT_soft) || opts == 0) - limit.rlim_cur = val; -//bb_error_msg("setrlimit(%d, %lld, %lld)", l->cmd, (long long)limit.rlim_cur, (long long)limit.rlim_max); - if (setrlimit(l->cmd, &limit) < 0) { - bb_perror_msg("error setting limit"); - return EXIT_FAILURE; - } - } else { - printlim(opts, &limit, l); - } - break; - } - } /* for (every possible opt) */ - - if (l == &limits_tbl[ARRAY_SIZE(limits_tbl)]) { - /* bad option. getopt already complained. */ - break; - } - - } /* while (there are options) */ - - return 0; -} |