From 9d7518c2cb43f1fb1eb54495899945523fd5dc99 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sun, 25 Feb 2018 13:53:05 +0000 Subject: toolbox: add OpenADK toolbox for very small systems, thx Thorsten Glaser --- package/toolbox/src/mknod/Makefile | 6 + package/toolbox/src/mknod/mknod.c | 190 +++++++++++++++ package/toolbox/src/mknod/setmode.c | 462 ++++++++++++++++++++++++++++++++++++ 3 files changed, 658 insertions(+) create mode 100644 package/toolbox/src/mknod/Makefile create mode 100644 package/toolbox/src/mknod/mknod.c create mode 100644 package/toolbox/src/mknod/setmode.c (limited to 'package/toolbox/src/mknod') diff --git a/package/toolbox/src/mknod/Makefile b/package/toolbox/src/mknod/Makefile new file mode 100644 index 000000000..35956fad6 --- /dev/null +++ b/package/toolbox/src/mknod/Makefile @@ -0,0 +1,6 @@ +PROG= mknod +SRCS= mknod.c setmode.c + +include ../tool.mk + +CPPFLAGS+= -D'__SCCSID(x)=' diff --git a/package/toolbox/src/mknod/mknod.c b/package/toolbox/src/mknod/mknod.c new file mode 100644 index 000000000..f09dfe8c4 --- /dev/null +++ b/package/toolbox/src/mknod/mknod.c @@ -0,0 +1,190 @@ +/* $OpenBSD: mknod.c,v 1.13 2003/06/02 20:06:15 millert Exp $ */ +/* $NetBSD: mknod.c,v 1.8 1995/08/11 00:08:18 jtc Exp $ */ + +/* + * Copyright (c) 1989, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kevin Fall. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +__COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\ + The Regents of the University of California. All rights reserved.\n"); +__SCCSID("@(#)mknod.c 8.1 (Berkeley) 6/5/93"); +__RCSID("$MirOS: src/sbin/mknod/mknod.c,v 1.3 2016/01/02 21:33:04 tg Exp $"); + +#include +#include +#include +#include +#include +#include +#include +#include + +extern char *__progname; + +int domknod(int, char **, mode_t); +int domkfifo(int, char **, mode_t); +void usage(int); + +extern mode_t getmode(const void *, mode_t); +extern void *setmode(const char *); + +int +main(int argc, char *argv[]) +{ + int ch, ismkfifo = 0; + void *set = NULL; + mode_t mode = 0; + + if (strcmp(__progname, "mkfifo") == 0) + ismkfifo = 1; + + while ((ch = getopt(argc, argv, "m:")) != -1) + switch(ch) { + case 'm': + if (!(set = setmode(optarg))) { + errx(1, "invalid file mode."); + /* NOTREACHED */ + } + + /* + * In symbolic mode strings, the + and - operators are + * interpreted relative to an assumed initial mode of + * a=rw. + */ + mode = getmode(set, DEFFILEMODE); + free(set); + break; + case '?': + default: + usage(ismkfifo); + } + argc -= optind; + argv += optind; + + if (argv[0] == NULL) + usage(ismkfifo); + if (!ismkfifo) { + if (argc == 2 && argv[1][0] == 'p') { + ismkfifo = 2; + argc--; + argv[1] = NULL; + } else if (argc != 4) { + usage(ismkfifo); + /* NOTREACHED */ + } + } + + /* + * If the user specified a mode via `-m', don't allow the umask + * to modified it. If no `-m' flag was specified, the default + * mode is the value of the bitwise inclusive or of S_IRUSR, + * S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH as modified by + * the umask. + */ + if (set) + (void)umask(0); + else + mode = DEFFILEMODE; + + if (ismkfifo) + exit(domkfifo(argc, argv, mode)); + else + exit(domknod(argc, argv, mode)); +} + +int +domknod(int argc, char **argv, mode_t mode) +{ + dev_t dev; + char *endp; + u_int major, minor; + + if (argv[1][0] == 'c') + mode |= S_IFCHR; + else if (argv[1][0] == 'b') + mode |= S_IFBLK; + else { + errx(1, "node must be type 'b' or 'c'."); + /* NOTREACHED */ + } + + major = (long)strtoul(argv[2], &endp, 0); + if (endp == argv[2] || *endp != '\0') { + errx(1, "non-numeric major number."); + /* NOTREACHED */ + } + minor = (long)strtoul(argv[3], &endp, 0); + if (endp == argv[3] || *endp != '\0') { + errx(1, "non-numeric minor number."); + /* NOTREACHED */ + } + dev = makedev(major, minor); + if (major(dev) != major || minor(dev) != minor) { + errx(1, "major or minor number too large"); + /* NOTREACHED */ + } + if (mknod(argv[0], mode, dev) < 0) { + err(1, "%s", argv[0]); + /* NOTREACHED */ + } + return(0); +} + +int +domkfifo(int argc, char **argv, mode_t mode) +{ + int rv; + + for (rv = 0; *argv; ++argv) { + if (mkfifo(*argv, mode) < 0) { + warn("%s", *argv); + rv = 1; + } + } + return(rv); +} + +void +usage(int ismkfifo) +{ + + if (ismkfifo == 1) + (void)fprintf(stderr, "usage: %s [-m mode] fifoname ...\n", + __progname); + else { + (void)fprintf(stderr, "usage: %s [-m mode] name [b | c] major minor\n", + __progname); + (void)fprintf(stderr, "usage: %s [-m mode] name p\n", + __progname); + } + exit(1); +} diff --git a/package/toolbox/src/mknod/setmode.c b/package/toolbox/src/mknod/setmode.c new file mode 100644 index 000000000..afef02d81 --- /dev/null +++ b/package/toolbox/src/mknod/setmode.c @@ -0,0 +1,462 @@ +/* $OpenBSD: setmode.c,v 1.17 2005/08/08 08:05:34 espie Exp $ */ +/* $NetBSD: setmode.c,v 1.15 1997/02/07 22:21:06 christos Exp $ */ + +/* + * Copyright (c) 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Dave Borman at Cray Research, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include + +#ifdef SETMODE_DEBUG +#include +#endif + +__SCCSID("@(#)setmode.c 8.2 (Berkeley) 3/25/94"); +__RCSID("$MirOS: src/lib/libc/gen/setmode.c,v 1.15 2010/10/08 17:57:00 tg Exp $"); + +#define SET_LEN 6 /* initial # of bitcmd struct to malloc */ +#define SET_LEN_INCR 4 /* # of bitcmd structs to add as needed */ + +#if !defined(S_ISTXT) && defined(S_ISVTX) +#define S_ISTXT S_ISVTX +#endif + +typedef struct bitcmd { + mode_t bits; + char cmd; + char cmd2; +} BITCMD; + +#define CMD2_CLR 0x01 +#define CMD2_SET 0x02 +#define CMD2_GBITS 0x04 +#define CMD2_OBITS 0x08 +#define CMD2_UBITS 0x10 + +static BITCMD *addcmd(BITCMD *, int, int, int, u_int); +static void compress_mode(BITCMD *); +#ifdef SETMODE_DEBUG +static void dumpmode(BITCMD *); +#endif + +/* + * Given the old mode and an array of bitcmd structures, apply the operations + * described in the bitcmd structures to the old mode, and return the new mode. + * Note that there is no '=' command; a strict assignment is just a '-' (clear + * bits) followed by a '+' (set bits). + */ +mode_t +getmode(const void *bbox, mode_t omode) +{ + const BITCMD *set; + mode_t clrval, newmode, value; + + set = (const BITCMD *)bbox; + newmode = omode; + for (value = 0;; set++) + switch(set->cmd) { + /* + * When copying the user, group or other bits around, we "know" + * where the bits are in the mode so that we can do shifts to + * copy them around. If we don't use shifts, it gets real + * grundgy with lots of single bit checks and bit sets. + */ + case 'u': + value = (newmode & S_IRWXU) >> 6; + goto common; + + case 'g': + value = (newmode & S_IRWXG) >> 3; + goto common; + + case 'o': + value = newmode & S_IRWXO; + common: + if (set->cmd2 & CMD2_CLR) { + clrval = + (set->cmd2 & CMD2_SET) ? S_IRWXO : value; + if (set->cmd2 & CMD2_UBITS) + newmode &= ~((clrval<<6) & set->bits); + if (set->cmd2 & CMD2_GBITS) + newmode &= ~((clrval<<3) & set->bits); + if (set->cmd2 & CMD2_OBITS) + newmode &= ~(clrval & set->bits); + } + if (set->cmd2 & CMD2_SET) { + if (set->cmd2 & CMD2_UBITS) + newmode |= (value<<6) & set->bits; + if (set->cmd2 & CMD2_GBITS) + newmode |= (value<<3) & set->bits; + if (set->cmd2 & CMD2_OBITS) + newmode |= value & set->bits; + } + break; + + case '+': + newmode |= set->bits; + break; + + case '-': + newmode &= ~set->bits; + break; + + case 'X': + if (omode & (S_IFDIR|S_IXUSR|S_IXGRP|S_IXOTH)) + newmode |= set->bits; + break; + + case '\0': + default: +#ifdef SETMODE_DEBUG + (void)printf("getmode:%04o -> %04o\n", omode, newmode); +#endif + return (newmode); + } +} + +#define notoktomul(a, b) ((a) && (b) && (SIZE_MAX / (a) < (b))) + +#define ADDCMD(a, b, c, d) \ + if (set >= endset) { \ + BITCMD *newset; \ + setlen += SET_LEN_INCR; \ + if (notoktomul(setlen, sizeof(BITCMD)) || \ + (newset = realloc(saveset, setlen * \ + sizeof(BITCMD))) == NULL) { \ + free(saveset); \ + return (NULL); \ + } \ + set = newset + (set - saveset); \ + saveset = newset; \ + endset = newset + (setlen - 2); \ + } \ + set = addcmd(set, (a), (b), (c), (d)) + +#define STANDARD_BITS (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) + +void * +setmode(const char *p) +{ + int perm, who; + char op, *ep; + BITCMD *set, *saveset, *endset; + sigset_t signset, sigoset; + mode_t mask; + int equalopdone = 0, permXbits, setlen; + u_long perml; + + if (!*p) + return (NULL); + + /* + * Get a copy of the mask for the permissions that are mask relative. + * Flip the bits, we want what's not set. Since it's possible that + * the caller is opening files inside a signal handler, protect them + * as best we can. + */ + sigfillset(&signset); + (void)sigprocmask(SIG_BLOCK, &signset, &sigoset); + (void)umask(mask = umask(0)); + mask = ~mask; + (void)sigprocmask(SIG_SETMASK, &sigoset, NULL); + + setlen = SET_LEN + 2; + + if (notoktomul(setlen, sizeof(BITCMD)) || + (set = malloc(setlen * sizeof(BITCMD))) == NULL) + return (NULL); + saveset = set; + endset = set + (setlen - 2); + + /* + * If an absolute number, get it and return; disallow non-octal digits + * or illegal bits. + */ + if (isdigit((unsigned char)*p)) { + perml = strtoul(p, &ep, 8); + /* The test on perml will also catch overflow. */ + if (*ep != '\0' || (perml & ~(STANDARD_BITS|S_ISTXT))) { + free(saveset); + errno = ERANGE; + return (NULL); + } + perm = (mode_t)perml; + ADDCMD('=', (STANDARD_BITS|S_ISTXT), perm, mask); + set->cmd = 0; + return (saveset); + } + + /* + * Build list of structures to set/clear/copy bits as described by + * each clause of the symbolic mode. + */ + for (;;) { + /* First, find out which bits might be modified. */ + for (who = 0;; ++p) { + switch (*p) { + case 'a': + who |= STANDARD_BITS; + break; + case 'u': + who |= S_ISUID|S_IRWXU; + break; + case 'g': + who |= S_ISGID|S_IRWXG; + break; + case 'o': + who |= S_IRWXO; + break; + default: + goto getop; + } + } + + getop: + if ((op = *p++) != '+' && op != '-' && op != '=') { + free(saveset); + return (NULL); + } + if (op == '=') + equalopdone = 0; + + who &= ~S_ISTXT; + for (perm = 0, permXbits = 0;; ++p) { + switch (*p) { + case 'r': + perm |= S_IRUSR|S_IRGRP|S_IROTH; + break; + case 's': + /* + * If specific bits where requested and + * only "other" bits ignore set-id. + */ + if (who == 0 || (who & ~S_IRWXO)) + perm |= S_ISUID|S_ISGID; + break; + case 't': + /* + * If specific bits where requested and + * only "other" bits ignore sticky. + */ + if (who == 0 || (who & ~S_IRWXO)) { + who |= S_ISTXT; + perm |= S_ISTXT; + } + break; + case 'w': + perm |= S_IWUSR|S_IWGRP|S_IWOTH; + break; + case 'X': + permXbits = S_IXUSR|S_IXGRP|S_IXOTH; + break; + case 'x': + perm |= S_IXUSR|S_IXGRP|S_IXOTH; + break; + case 'u': + case 'g': + case 'o': + /* + * When ever we hit 'u', 'g', or 'o', we have + * to flush out any partial mode that we have, + * and then do the copying of the mode bits. + */ + if (perm) { + ADDCMD(op, who, perm, mask); + perm = 0; + } + if (op == '=') + equalopdone = 1; + if (op == '+' && permXbits) { + ADDCMD('X', who, permXbits, mask); + permXbits = 0; + } + ADDCMD(*p, who, op, mask); + break; + + default: + /* + * Add any permissions that we haven't already + * done. + */ + if (perm || (op == '=' && !equalopdone)) { + if (op == '=') + equalopdone = 1; + ADDCMD(op, who, perm, mask); + perm = 0; + } + if (permXbits) { + ADDCMD('X', who, permXbits, mask); + permXbits = 0; + } + goto apply; + } + } + + apply: + if (!*p) + break; + if (*p != ',') + goto getop; + ++p; + } + set->cmd = 0; +#ifdef SETMODE_DEBUG + (void)printf("Before compress_mode()\n"); + dumpmode(saveset); +#endif + compress_mode(saveset); +#ifdef SETMODE_DEBUG + (void)printf("After compress_mode()\n"); + dumpmode(saveset); +#endif + return (saveset); +} + +static BITCMD * +addcmd(BITCMD *set, int op, int who, int oparg, u_int mask) +{ + switch (op) { + case '=': + set->cmd = '-'; + set->bits = who ? who : STANDARD_BITS; + set++; + + op = '+'; + /* FALLTHROUGH */ + case '+': + case '-': + case 'X': + set->cmd = op; + set->bits = (who ? who : (int)mask) & oparg; + break; + + case 'u': + case 'g': + case 'o': + set->cmd = op; + if (who) { + set->cmd2 = ((who & S_IRUSR) ? CMD2_UBITS : 0) | + ((who & S_IRGRP) ? CMD2_GBITS : 0) | + ((who & S_IROTH) ? CMD2_OBITS : 0); + set->bits = (mode_t)~0; + } else { + set->cmd2 = CMD2_UBITS | CMD2_GBITS | CMD2_OBITS; + set->bits = mask; + } + + if (oparg == '+') + set->cmd2 |= CMD2_SET; + else if (oparg == '-') + set->cmd2 |= CMD2_CLR; + else if (oparg == '=') + set->cmd2 |= CMD2_SET|CMD2_CLR; + break; + } + return (set + 1); +} + +#ifdef SETMODE_DEBUG +static void +dumpmode(BITCMD *set) +{ + for (; set->cmd; ++set) + (void)printf("cmd: '%c' bits %04o%s%s%s%s%s%s\n", + set->cmd, set->bits, set->cmd2 ? " cmd2:" : "", + set->cmd2 & CMD2_CLR ? " CLR" : "", + set->cmd2 & CMD2_SET ? " SET" : "", + set->cmd2 & CMD2_UBITS ? " UBITS" : "", + set->cmd2 & CMD2_GBITS ? " GBITS" : "", + set->cmd2 & CMD2_OBITS ? " OBITS" : ""); +} +#endif + +/* + * Given an array of bitcmd structures, compress by compacting consecutive + * '+', '-' and 'X' commands into at most 3 commands, one of each. The 'u', + * 'g' and 'o' commands continue to be separate. They could probably be + * compacted, but it's not worth the effort. + */ +static void +compress_mode(BITCMD *set) +{ + BITCMD *nset; + int setbits, clrbits, Xbits, op; + + for (nset = set;;) { + /* Copy over any 'u', 'g' and 'o' commands. */ + while ((op = nset->cmd) != '+' && op != '-' && op != 'X') { + *set++ = *nset++; + if (!op) + return; + } + + for (setbits = clrbits = Xbits = 0;; nset++) { + if ((op = nset->cmd) == '-') { + clrbits |= nset->bits; + setbits &= ~nset->bits; + Xbits &= ~nset->bits; + } else if (op == '+') { + setbits |= nset->bits; + clrbits &= ~nset->bits; + Xbits &= ~nset->bits; + } else if (op == 'X') + Xbits |= nset->bits & ~setbits; + else + break; + } + if (clrbits) { + set->cmd = '-'; + set->cmd2 = 0; + set->bits = clrbits; + set++; + } + if (setbits) { + set->cmd = '+'; + set->cmd2 = 0; + set->bits = setbits; + set++; + } + if (Xbits) { + set->cmd = 'X'; + set->cmd2 = 0; + set->bits = Xbits; + set++; + } + } +} -- cgit v1.2.3