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/*
* 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);
}
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