diff options
Diffstat (limited to 'tools/cpio/src/flags.c')
| -rw-r--r-- | tools/cpio/src/flags.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/tools/cpio/src/flags.c b/tools/cpio/src/flags.c new file mode 100644 index 000000000..e06c8e80d --- /dev/null +++ b/tools/cpio/src/flags.c @@ -0,0 +1,257 @@ +/* + * cpio - copy file archives in and out + * + * Gunnar Ritter, Freiburg i. Br., Germany, April 2003. + */ +/* + * Copyright (c) 2003 Gunnar Ritter + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute + * it freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source distribution. + */ + +/* Sccsid @(#)flags.c 1.6 (gritter) 3/26/07 */ + +#include <unistd.h> +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> + +#include "cpio.h" + +void +flags(int ac, char **av) +{ + const char optstring[] = + "iopaAbBcC:dDeE:fH:I:kKlLmM:O:PrR:sStTuvV6"; + int i, illegal = 0; + + if (getenv("SYSV3") != NULL) + sysv3 = printsev = 1; + while ((i = getopt(ac, av, optstring)) != EOF) { + switch (i) { + case 'i': + case 'o': + case 'p': + if (action && action != i) + illegal = 1; + action = i; + break; + case 'a': + aflag = 1; + break; + case 'A': + Aflag = 1; + break; + case 'b': + bflag = 1; + break; + case 'B': + blksiz = 5120; + Bflag = 1; + break; + case 'c': + fmttype = sysv3 ? FMT_ODC : FMT_ASC; + cflag = 1; + break; + case 'C': + if ((blksiz = atol(optarg)) <= 0) + msg(4, -2, + "Illegal size given for -C option.\n"); + Cflag = 1; + break; + case 'd': + dflag = 1; + break; + case 'D': + Dflag = 1; + break; + case 'e': + /* + * This option is accepted for compatibility only, + * -Hdec should be used instead. + */ + fmttype = FMT_DEC; + eflag = 1; + break; + case 'E': + Eflag = optarg; + break; + case 'f': + fflag = 1; + break; + case 'H': + if (setfmt(optarg) < 0) + illegal = 1; + Hflag = 1; + break; + case 'I': + Iflag = optarg; + break; + case 'k': + kflag = 1; + break; + case 'K': + /* + * This option is accepted for compatibility only, + * -Hsgi should be used instead. + */ + fmttype = FMT_SGIBE; + Kflag = 1; + break; + case 'l': + lflag = 1; + break; + case 'L': + Lflag = 1; + break; + case 'm': + mflag = 1; + break; + case 'M': + Mflag = oneintfmt(optarg); + break; + case 'O': + Oflag = optarg; + break; + case 'P': + Pflag = 1; + break; + case 'r': + rflag = 1; + break; + case 'R': + if (setreassign(Rflag = optarg) < 0) + illegal = 1; + break; + case 's': + sflag = 1; + break; + case 'S': + Sflag = 1; + break; + case 't': + tflag = 1; + break; + case 'u': + uflag = 1; + break; + case 'v': + vflag++; + break; + case 'V': + Vflag = 1; + break; + case '6': + sixflag = 1; + fmttype = FMT_BINLE; + break; + default: + if (sysv3) + usage(); + illegal = 1; + } + } + switch (action) { + case 'i': + if (Oflag || Kflag || eflag || Lflag || lflag || aflag || + Aflag || Pflag) + illegal = 1; + for (i = optind; i < ac; i++) + addg(av[i], 0); + break; + case 'o': + if (Iflag || dflag || fflag || kflag || mflag || + rflag || tflag || uflag || + sixflag || Eflag || Rflag) + illegal = 1; + if (optind != ac) + illegal = 1; + break; + case 'p': + if (Iflag || Oflag || blksiz || Eflag || fmttype != FMT_NONE || + Mflag || bflag || fflag || kflag || sflag || + tflag || Sflag || sixflag) + illegal = 1; + if (optind + 1 != ac) + illegal = 1; + break; + default: + if (sysv3 == 0) + msg(3, 0, "One of -i, -o or -p must be specified.\n"); + else if (ac > 1) + msg(3, -2, "Options must include one: -o, -i, -p.\n"); + illegal = 1; + } + /* + * Sanity checks. No check for multiple occurences of options + * since they can make sense, behave as other programs and use + * the latter one. + */ + /*if (aflag && mflag) { + msg(3, 0, "-a and -m are mutually exclusive.\n"); + illegal = 1; + } why? */ + /*if (cflag && (Hflag || Kflag || eflag)) { + msg(3, 0, "-c and -H are mutually exclusive.\n"); + illegal = 1; + } allow overriding -c with -H and vice versa */ + if ((vflag || tflag) && Vflag) { + msg(3, 0, "-v and -V are mutually exclusive.\n"); + illegal = 1; + } + /*if (Bflag && Cflag) { + msg(3, 0, "-B and -C are mutually exclusive.\n"); + illegal = 1; + } allow overriding of block sizes */ + if ((Hflag || cflag || Kflag || eflag) && sixflag) { + msg(3, 0, "-H and -6 are mutually exclusive.\n"); + illegal = 1; + } + if (!sysv3 && Mflag && Oflag == NULL && Iflag == NULL) { + msg(3, 0, "-M not meaningful without -O or -I.\n"); + illegal = 1; + } + if (!sysv3 && Aflag && Oflag == NULL) { + msg(3, 0, "-A requires the -O option\n"); + illegal = 1; + } + if (illegal) + usage(); +} + +void +usage(void) +{ + if (sysv3) + fprintf(stderr, "\ +Usage: %s -o[acvVABL] [-Csize] [-Hhdr] [-Mmsg] <name-list >collection\n\ +\t%s -o[acvVABL] -Ocollection [-Csize] [-Hhdr] [-Mmsg] <name-list\n\ +\t%s -i[bcdkmrsStuvVfB6] [-Csize] [-Efile] [-Hhdr] [-Mmsg] [-Rid] [pattern ...] <collection\n\ +\t%s -i[bcdkmrsStuvVfB6] -Icollection [-Csize] [-Efile] [-Hhdr] [-Mmsg] [-Rid] [pattern ...]\n\ +\t%s -p[adlmruvVL] [-Rid] directory <name-list\n", + progname, progname, progname, progname, progname); + else + fprintf(stderr, "USAGE:\n\ +\t%s -i[bcdfkmrstuvBSV6] [-C size] [-E file] [-H hdr] [[-I file] [-M msg]] \ +[-R id] [patterns]\n\ +\t%s -o[acvABLV] [-C size] [-H hdr] [[-M msg] [-O file]]\n\ +\t%s -p[adlmuvLV] [-R id] directory\n", + progname, progname, progname); + exit(1); +} |