diff options
| -rw-r--r-- | Config.in | 1 | ||||
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | klibc-utils/Config.src | 10 | ||||
| -rw-r--r-- | klibc-utils/Kbuild.src | 9 | ||||
| -rw-r--r-- | klibc-utils/minips.c | 12 | ||||
| -rw-r--r-- | klibc-utils/nuke.c | 46 | ||||
| -rw-r--r-- | klibc-utils/resume.c | 115 | ||||
| -rw-r--r-- | procps/ps.c | 5 | ||||
| -rw-r--r-- | scripts/Makefile.IMA | 3 |
9 files changed, 201 insertions, 1 deletions
@@ -691,6 +691,7 @@ source archival/Config.in source coreutils/Config.in source console-tools/Config.in source debianutils/Config.in +source klibc-utils/Config.in source editors/Config.in source findutils/Config.in source init/Config.in @@ -470,6 +470,7 @@ libs-y := \ coreutils/ \ coreutils/libcoreutils/ \ debianutils/ \ + klibc-utils/ \ e2fsprogs/ \ editors/ \ findutils/ \ diff --git a/klibc-utils/Config.src b/klibc-utils/Config.src new file mode 100644 index 0000000..fe7cb13 --- /dev/null +++ b/klibc-utils/Config.src @@ -0,0 +1,10 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +menu "klibc-utils" + +INSERT + +endmenu diff --git a/klibc-utils/Kbuild.src b/klibc-utils/Kbuild.src new file mode 100644 index 0000000..6b4fb74 --- /dev/null +++ b/klibc-utils/Kbuild.src @@ -0,0 +1,9 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org> +# +# Licensed under GPLv2, see file LICENSE in this source tree. + +lib-y:= + +INSERT diff --git a/klibc-utils/minips.c b/klibc-utils/minips.c new file mode 100644 index 0000000..96ce886 --- /dev/null +++ b/klibc-utils/minips.c @@ -0,0 +1,12 @@ +/* + * Copyright (c) 2017 Denys Vlasenko <vda.linux@googlemail.com> + * + * Licensed under GPLv2, see file LICENSE in this source tree. + */ +//config:config MINIPS +//config: bool "minips (11 kb)" +//config: default n # for god's sake, just use "ps" name in your scripts +//config: help +//config: Alias to "ps". + +/* applet abd kbuild hooks are in ps.c */ diff --git a/klibc-utils/nuke.c b/klibc-utils/nuke.c new file mode 100644 index 0000000..363e03c --- /dev/null +++ b/klibc-utils/nuke.c @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2017 Denys Vlasenko <vda.linux@googlemail.com> + * + * Licensed under GPLv2 or later, see file LICENSE in this source tree. + */ +//config:config NUKE +//config: bool "nuke" +//config: default y +//config: help +//config: Alias to "rm -rf". + +//applet:IF_NUKE(APPLET_NOEXEC(nuke, nuke, BB_DIR_BIN, BB_SUID_DROP, nuke)) + +//kbuild:lib-$(CONFIG_NUKE) += nuke.o + +//usage:#define nuke_trivial_usage +//usage: "DIR..." +//usage:#define nuke_full_usage "\n\n" +//usage: "Resursively remove DIRs" + +#include "libbb.h" + +/* This is a NOEXEC applet. Be very careful! */ + +int nuke_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int nuke_main(int argc UNUSED_PARAM, char **argv) +{ +// klibc-utils do not check opts, will try to delete "-dir" args + //opt = getopt32(argv, ""); + //argv += optind; + + while (*++argv) { +#if 0 +// klibc-utils do not check this, will happily operate on ".." + const char *base = bb_get_last_path_component_strip(*argv); + if (DOT_OR_DOTDOT(base)) { + bb_error_msg("can't remove '.' or '..'"); + continue; + } +#endif + remove_file(*argv, FILEUTILS_FORCE | FILEUTILS_RECUR); + } + +// klibc-utils do not indicate errors + return EXIT_SUCCESS; +} diff --git a/klibc-utils/resume.c b/klibc-utils/resume.c new file mode 100644 index 0000000..de142f3 --- /dev/null +++ b/klibc-utils/resume.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2017 Denys Vlasenko <vda.linux@googlemail.com> + * + * Licensed under GPLv2 or later, see file LICENSE in this source tree. + */ +//config:config RESUME +//config: bool "resume" +//config: default y +//config: help +//config: Resume from saved "suspend-to-disk" image + +//applet:IF_RESUME(APPLET_NOEXEC(resume, resume, BB_DIR_BIN, BB_SUID_DROP, resume)) + +//kbuild:lib-$(CONFIG_RESUME) += resume.o + +#include "libbb.h" + +/* This is a NOEXEC applet. Be very careful! */ + +/* name_to_dev_t() in klibc-utils supports extended device name formats, + * apart from the usual case where /dev/NAME already exists. + * + * - device number in hexadecimal represents itself (in dev_t layout). + * - device number in major:minor decimal represents itself. + * - if block device (or partition) with this name is found in sysfs. + * - if /dev/ prefix is not given, it is assumed. + * + * klibc-utils also recognizes these, but they don't work + * for "resume" tool purposes (thus we don't support them (yet?)): + * - /dev/nfs + * - /dev/ram (alias to /dev/ram0) + * - /dev/mtd + */ +static dev_t name_to_dev_t(const char *devname) +{ + char devfile[sizeof(int)*3 * 2 + 4]; + char *sysname; + unsigned major_num, minor_num; + struct stat st; + int r; + + if (strncmp(devname, "/dev/", 5) != 0) { + char *cptr; + + cptr = strchr(devname, ':'); + if (cptr) { + /* Colon-separated decimal device number? */ + *cptr = '\0'; + major_num = bb_strtou(devname, NULL, 10); + if (!errno) + minor_num = bb_strtou(cptr + 1, NULL, 10); + *cptr = ':'; + if (!errno) + return makedev(major_num, minor_num); + } else { + /* Hexadecimal device number? */ + dev_t res = (dev_t) bb_strtoul(devname, NULL, 16); + if (!errno) + return res; + } + + devname = xasprintf("/dev/%s", devname); + } + /* Now devname is always "/dev/FOO" */ + + if (stat(devname, &st) == 0 && S_ISBLK(st.st_mode)) + return st.st_rdev; + + /* Full blockdevs as well as partitions may be visible + * in /sys/class/block/ even if /dev is not populated. + */ + sysname = xasprintf("/sys/class/block/%s/dev", devname + 5); + r = open_read_close(sysname, devfile, sizeof(devfile) - 1); + //free(sysname); + if (r > 0) { + devfile[r] = '\0'; + if (sscanf(devfile, "%u:%u", &major_num, &minor_num) == 2) { + return makedev(major_num, minor_num); + } + } + + return (dev_t) 0; +} + +//usage:#define resume_trivial_usage +//usage: "BLOCKDEV [OFFSET]" +//usage:#define resume_full_usage "\n" +//usage: "\n""Restore system state from 'suspend-to-disk' data in BLOCKDEV" + +int resume_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int resume_main(int argc UNUSED_PARAM, char **argv) +{ + unsigned long long ofs; + dev_t resume_device; + char *s; + int fd; + + argv++; + if (!argv[0]) + bb_show_usage(); + + resume_device = name_to_dev_t(argv[0]); + if (major(resume_device) == 0) { + bb_error_msg_and_die("invalid resume device: %s", argv[0]); + } + ofs = (argv[1] ? xstrtoull(argv[1], 0) : 0); + + fd = xopen("/sys/power/resume", O_WRONLY); + s = xasprintf("%u:%u:%llu", major(resume_device), minor(resume_device), ofs); + + xwrite_str(fd, s); + /* if write() returns, resume did not succeed */ + + return EXIT_FAILURE; /* klibc-utils exits -1 aka 255 */ +} diff --git a/procps/ps.c b/procps/ps.c index 646b114..7edf6db 100644 --- a/procps/ps.c +++ b/procps/ps.c @@ -50,9 +50,12 @@ //config: Include support for measuring HZ on old kernels and non-ELF systems //config: (if you are on Linux 2.4.0+ and use ELF, you don't need this) -//applet:IF_PS(APPLET_NOEXEC(ps, ps, BB_DIR_BIN, BB_SUID_DROP, ps)) +// APPLET_NOEXEC:name main location suid_type help +//applet:IF_PS( APPLET_NOEXEC(ps, ps, BB_DIR_BIN, BB_SUID_DROP, ps)) +//applet:IF_MINIPS(APPLET_NOEXEC(minips, ps, BB_DIR_BIN, BB_SUID_DROP, ps)) //kbuild:lib-$(CONFIG_PS) += ps.o +//kbuild:lib-$(CONFIG_MINIPS) += ps.o //usage:#if ENABLE_DESKTOP //usage: diff --git a/scripts/Makefile.IMA b/scripts/Makefile.IMA index 0eced29..f155108 100644 --- a/scripts/Makefile.IMA +++ b/scripts/Makefile.IMA @@ -115,6 +115,9 @@ lib-y:= include debianutils/Kbuild lib-all-y += $(patsubst %,debianutils/%,$(sort $(lib-y))) lib-y:= +include klibc-utils/Kbuild +lib-all-y += $(patsubst %,klibc-utils/%,$(sort $(lib-y))) +lib-y:= include runit/Kbuild lib-all-y += $(patsubst %,runit/%,$(sort $(lib-y))) lib-y:= |