1982ee69fd
options one would normally expect to set the realm, enable encryption, and whatnot, but this actually is able to contact the remote server, so at least it's a start. (As a bonus, the stripped static binary is unquestionably exportable.)
645 lines
16 KiB
C
645 lines
16 KiB
C
/*-
|
|
* Copyright (c) 1980, 1991, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#ifdef sunos
|
|
#include <sys/vnode.h>
|
|
|
|
#include <ufs/inode.h>
|
|
#include <ufs/fs.h>
|
|
#else
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ffs/fs.h>
|
|
#endif
|
|
|
|
#include <protocols/dumprestore.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <fstab.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "dump.h"
|
|
#include "pathnames.h"
|
|
|
|
#ifndef SBOFF
|
|
#define SBOFF (SBLOCK * DEV_BSIZE)
|
|
#endif
|
|
|
|
int notify = 0; /* notify operator flag */
|
|
int blockswritten = 0; /* number of blocks written on current tape */
|
|
int tapeno = 0; /* current tape number */
|
|
int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
|
|
int ntrec = NTREC; /* # tape blocks in each tape record */
|
|
int cartridge = 0; /* Assume non-cartridge tape */
|
|
int dokerberos = 0; /* Use Kerberos authentication */
|
|
long dev_bsize = 1; /* recalculated below */
|
|
long blocksperfile; /* output blocks per file */
|
|
char *host = NULL; /* remote host (if any) */
|
|
|
|
static long numarg __P((char *, long, long));
|
|
static void obsolete __P((int *, char **[]));
|
|
static void usage __P((void));
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
register ino_t ino;
|
|
register int dirty;
|
|
register struct dinode *dp;
|
|
register struct fstab *dt;
|
|
register char *map;
|
|
register int ch;
|
|
int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
|
|
ino_t maxino;
|
|
|
|
spcl.c_date = 0;
|
|
(void)time((time_t *)&spcl.c_date);
|
|
|
|
tsize = 0; /* Default later, based on 'c' option for cart tapes */
|
|
if ((tape = getenv("TAPE")) == NULL)
|
|
tape = _PATH_DEFTAPE;
|
|
dumpdates = _PATH_DUMPDATES;
|
|
temp = _PATH_DTMP;
|
|
if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
|
|
quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
|
|
level = '0';
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
|
|
obsolete(&argc, &argv);
|
|
#ifdef KERBEROS
|
|
#define optstring "0123456789aB:b:cd:f:h:kns:T:uWw"
|
|
#else
|
|
#define optstring "0123456789aB:b:cd:f:h:ns:T:uWw"
|
|
#endif
|
|
while ((ch = getopt(argc, argv, optstring)) != -1)
|
|
#undef optstring
|
|
switch (ch) {
|
|
/* dump level */
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
level = ch;
|
|
break;
|
|
|
|
case 'a': /* `auto-size', Write to EOM. */
|
|
unlimited = 1;
|
|
break;
|
|
|
|
case 'B': /* blocks per output file */
|
|
blocksperfile = numarg("number of blocks per file",
|
|
1L, 0L);
|
|
break;
|
|
|
|
case 'b': /* blocks per tape write */
|
|
ntrec = numarg("number of blocks per write",
|
|
1L, 1000L);
|
|
/*
|
|
* XXX
|
|
* physio(9) currently slices all requests to
|
|
* 64 KB chunks. So now, if somebody entered
|
|
* e.g. 96 KB block size here, he would effectively
|
|
* yield one 64 KB and one 32 KB block, which
|
|
* restore cannot handle.
|
|
* Thus we currently enforce pyhsio(9)'s limit
|
|
* here, too.
|
|
*/
|
|
if ( ntrec > 64 ) {
|
|
msg("please choose a blocksize <= 64\n");
|
|
exit(X_ABORT);
|
|
}
|
|
break;
|
|
|
|
case 'c': /* Tape is cart. not 9-track */
|
|
cartridge = 1;
|
|
break;
|
|
|
|
case 'd': /* density, in bits per inch */
|
|
density = numarg("density", 10L, 327670L) / 10;
|
|
if (density >= 625 && !bflag)
|
|
ntrec = HIGHDENSITYTREC;
|
|
break;
|
|
|
|
case 'f': /* output file */
|
|
tape = optarg;
|
|
break;
|
|
|
|
case 'h':
|
|
honorlevel = numarg("honor level", 0L, 10L);
|
|
break;
|
|
|
|
#ifdef KERBEROS
|
|
case 'k':
|
|
dokerberos = 1;
|
|
break;
|
|
#endif
|
|
|
|
case 'n': /* notify operators */
|
|
notify = 1;
|
|
break;
|
|
|
|
case 's': /* tape size, feet */
|
|
tsize = numarg("tape size", 1L, 0L) * 12 * 10;
|
|
break;
|
|
|
|
case 'T': /* time of last dump */
|
|
spcl.c_ddate = unctime(optarg);
|
|
if (spcl.c_ddate < 0) {
|
|
(void)fprintf(stderr, "bad time \"%s\"\n",
|
|
optarg);
|
|
exit(X_ABORT);
|
|
}
|
|
Tflag = 1;
|
|
lastlevel = '?';
|
|
argc--;
|
|
argv++;
|
|
break;
|
|
|
|
case 'u': /* update /etc/dumpdates */
|
|
uflag = 1;
|
|
break;
|
|
|
|
case 'W': /* what to do */
|
|
case 'w':
|
|
lastdump(ch);
|
|
exit(0); /* do nothing else */
|
|
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc < 1) {
|
|
(void)fprintf(stderr, "Must specify disk or filesystem\n");
|
|
exit(X_ABORT);
|
|
}
|
|
disk = *argv++;
|
|
argc--;
|
|
if (argc >= 1) {
|
|
(void)fprintf(stderr, "Unknown arguments to dump:");
|
|
while (argc--)
|
|
(void)fprintf(stderr, " %s", *argv++);
|
|
(void)fprintf(stderr, "\n");
|
|
exit(X_ABORT);
|
|
}
|
|
if (Tflag && uflag) {
|
|
(void)fprintf(stderr,
|
|
"You cannot use the T and u flags together.\n");
|
|
exit(X_ABORT);
|
|
}
|
|
if (strcmp(tape, "-") == 0) {
|
|
pipeout++;
|
|
tape = "standard output";
|
|
}
|
|
|
|
if (blocksperfile)
|
|
blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
|
|
else if (!unlimited) {
|
|
/*
|
|
* Determine how to default tape size and density
|
|
*
|
|
* density tape size
|
|
* 9-track 1600 bpi (160 bytes/.1") 2300 ft.
|
|
* 9-track 6250 bpi (625 bytes/.1") 2300 ft.
|
|
* cartridge 8000 bpi (100 bytes/.1") 1700 ft.
|
|
* (450*4 - slop)
|
|
* hilit19 hits again: "
|
|
*/
|
|
if (density == 0)
|
|
density = cartridge ? 100 : 160;
|
|
if (tsize == 0)
|
|
tsize = cartridge ? 1700L*120L : 2300L*120L;
|
|
}
|
|
|
|
if (strchr(tape, ':')) {
|
|
host = tape;
|
|
tape = strchr(host, ':');
|
|
*tape++ = '\0';
|
|
#ifdef RDUMP
|
|
if (index(tape, '\n')) {
|
|
(void)fprintf(stderr, "invalid characters in tape\n");
|
|
exit(X_ABORT);
|
|
}
|
|
if (rmthost(host) == 0)
|
|
exit(X_ABORT);
|
|
#else
|
|
(void)fprintf(stderr, "remote dump not enabled\n");
|
|
exit(X_ABORT);
|
|
#endif
|
|
}
|
|
(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
|
|
|
|
if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
|
|
signal(SIGHUP, sig);
|
|
if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
|
|
signal(SIGTRAP, sig);
|
|
if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
|
|
signal(SIGFPE, sig);
|
|
if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
|
|
signal(SIGBUS, sig);
|
|
if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
|
|
signal(SIGSEGV, sig);
|
|
if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
|
|
signal(SIGTERM, sig);
|
|
if (signal(SIGINT, interrupt) == SIG_IGN)
|
|
signal(SIGINT, SIG_IGN);
|
|
|
|
set_operators(); /* /etc/group snarfed */
|
|
getfstab(); /* /etc/fstab snarfed */
|
|
/*
|
|
* disk can be either the full special file name,
|
|
* the suffix of the special file name,
|
|
* the special name missing the leading '/',
|
|
* the file system name with or without the leading '/'.
|
|
*/
|
|
dt = fstabsearch(disk);
|
|
if (dt != NULL) {
|
|
disk = rawname(dt->fs_spec);
|
|
(void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
|
|
(void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
|
|
} else {
|
|
(void)strncpy(spcl.c_dev, disk, NAMELEN);
|
|
(void)strncpy(spcl.c_filesys, "an unlisted file system",
|
|
NAMELEN);
|
|
}
|
|
spcl.c_dev[NAMELEN-1]='\0';
|
|
spcl.c_filesys[NAMELEN-1]='\0';
|
|
(void)strcpy(spcl.c_label, "none");
|
|
(void)gethostname(spcl.c_host, NAMELEN);
|
|
spcl.c_level = level - '0';
|
|
spcl.c_type = TS_TAPE;
|
|
if (!Tflag)
|
|
getdumptime(); /* /etc/dumpdates snarfed */
|
|
|
|
msg("Date of this level %c dump: %s", level,
|
|
spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
|
|
msg("Date of last level %c dump: %s", lastlevel,
|
|
spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
|
|
msg("Dumping %s ", disk);
|
|
if (dt != NULL)
|
|
msgtail("(%s) ", dt->fs_file);
|
|
if (host)
|
|
msgtail("to %s on host %s\n", tape, host);
|
|
else
|
|
msgtail("to %s\n", tape);
|
|
|
|
if ((diskfd = open(disk, O_RDONLY)) < 0) {
|
|
msg("Cannot open %s\n", disk);
|
|
exit(X_ABORT);
|
|
}
|
|
sync();
|
|
sblock = (struct fs *)sblock_buf;
|
|
bread(SBOFF, (char *) sblock, SBSIZE);
|
|
if (sblock->fs_magic != FS_MAGIC)
|
|
quit("bad sblock magic number\n");
|
|
dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
|
|
dev_bshift = ffs(dev_bsize) - 1;
|
|
if (dev_bsize != (1 << dev_bshift))
|
|
quit("dev_bsize (%d) is not a power of 2", dev_bsize);
|
|
tp_bshift = ffs(TP_BSIZE) - 1;
|
|
if (TP_BSIZE != (1 << tp_bshift))
|
|
quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
|
|
#ifdef FS_44INODEFMT
|
|
if (sblock->fs_inodefmt >= FS_44INODEFMT)
|
|
spcl.c_flags |= DR_NEWINODEFMT;
|
|
#endif
|
|
maxino = sblock->fs_ipg * sblock->fs_ncg;
|
|
mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
|
|
usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
|
|
tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
|
|
|
nonodump = spcl.c_level < honorlevel;
|
|
|
|
msg("mapping (Pass I) [regular files]\n");
|
|
anydirskipped = mapfiles(maxino, &tapesize);
|
|
|
|
msg("mapping (Pass II) [directories]\n");
|
|
while (anydirskipped) {
|
|
anydirskipped = mapdirs(maxino, &tapesize);
|
|
}
|
|
|
|
if (pipeout || unlimited) {
|
|
tapesize += 10; /* 10 trailer blocks */
|
|
msg("estimated %ld tape blocks.\n", tapesize);
|
|
} else {
|
|
double fetapes;
|
|
|
|
if (blocksperfile)
|
|
fetapes = (double) tapesize / blocksperfile;
|
|
else if (cartridge) {
|
|
/* Estimate number of tapes, assuming streaming stops at
|
|
the end of each block written, and not in mid-block.
|
|
Assume no erroneous blocks; this can be compensated
|
|
for with an artificially low tape size. */
|
|
fetapes =
|
|
( (double) tapesize /* blocks */
|
|
* TP_BSIZE /* bytes/block */
|
|
* (1.0/density) /* 0.1" / byte " */
|
|
+
|
|
(double) tapesize /* blocks */
|
|
* (1.0/ntrec) /* streaming-stops per block */
|
|
* 15.48 /* 0.1" / streaming-stop " */
|
|
) * (1.0 / tsize ); /* tape / 0.1" " */
|
|
} else {
|
|
/* Estimate number of tapes, for old fashioned 9-track
|
|
tape */
|
|
int tenthsperirg = (density == 625) ? 3 : 7;
|
|
fetapes =
|
|
( (double) tapesize /* blocks */
|
|
* TP_BSIZE /* bytes / block */
|
|
* (1.0/density) /* 0.1" / byte " */
|
|
+
|
|
(double) tapesize /* blocks */
|
|
* (1.0/ntrec) /* IRG's / block */
|
|
* tenthsperirg /* 0.1" / IRG " */
|
|
) * (1.0 / tsize ); /* tape / 0.1" " */
|
|
}
|
|
etapes = fetapes; /* truncating assignment */
|
|
etapes++;
|
|
/* count the dumped inodes map on each additional tape */
|
|
tapesize += (etapes - 1) *
|
|
(howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
|
|
tapesize += etapes + 10; /* headers + 10 trailer blks */
|
|
msg("estimated %ld tape blocks on %3.2f tape(s).\n",
|
|
tapesize, fetapes);
|
|
}
|
|
|
|
/*
|
|
* Allocate tape buffer.
|
|
*/
|
|
if (!alloctape())
|
|
quit("can't allocate tape buffers - try a smaller blocking factor.\n");
|
|
|
|
startnewtape(1);
|
|
(void)time((time_t *)&(tstart_writing));
|
|
dumpmap(usedinomap, TS_CLRI, maxino - 1);
|
|
|
|
msg("dumping (Pass III) [directories]\n");
|
|
dirty = 0; /* XXX just to get gcc to shut up */
|
|
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
|
|
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
|
|
dirty = *map++;
|
|
else
|
|
dirty >>= 1;
|
|
if ((dirty & 1) == 0)
|
|
continue;
|
|
/*
|
|
* Skip directory inodes deleted and maybe reallocated
|
|
*/
|
|
dp = getino(ino);
|
|
if ((dp->di_mode & IFMT) != IFDIR)
|
|
continue;
|
|
(void)dumpino(dp, ino);
|
|
}
|
|
|
|
msg("dumping (Pass IV) [regular files]\n");
|
|
for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
|
|
int mode;
|
|
|
|
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
|
|
dirty = *map++;
|
|
else
|
|
dirty >>= 1;
|
|
if ((dirty & 1) == 0)
|
|
continue;
|
|
/*
|
|
* Skip inodes deleted and reallocated as directories.
|
|
*/
|
|
dp = getino(ino);
|
|
mode = dp->di_mode & IFMT;
|
|
if (mode == IFDIR)
|
|
continue;
|
|
(void)dumpino(dp, ino);
|
|
}
|
|
|
|
(void)time((time_t *)&(tend_writing));
|
|
spcl.c_type = TS_END;
|
|
for (i = 0; i < ntrec; i++)
|
|
writeheader(maxino - 1);
|
|
if (pipeout)
|
|
msg("DUMP: %ld tape blocks\n", spcl.c_tapea);
|
|
else
|
|
msg("DUMP: %ld tape blocks on %d volumes(s)\n",
|
|
spcl.c_tapea, spcl.c_volume);
|
|
|
|
/* report dump performance, avoid division through zero */
|
|
if (tend_writing - tstart_writing == 0)
|
|
msg("finished in less than a second\n");
|
|
else
|
|
msg("finished in %d seconds, throughput %d KBytes/sec\n",
|
|
tend_writing - tstart_writing,
|
|
spcl.c_tapea / (tend_writing - tstart_writing));
|
|
|
|
putdumptime();
|
|
trewind();
|
|
broadcast("DUMP IS DONE!\7\7\n");
|
|
msg("DUMP IS DONE\n");
|
|
Exit(X_FINOK);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
static void
|
|
usage()
|
|
{
|
|
fprintf(stderr, "usage: dump [-0123456789ac"
|
|
#ifdef KERBEROS
|
|
"k"
|
|
#endif
|
|
"nu] [-B records] [-b blocksize] [-d density] [-f file]\n"
|
|
" [-h level] [-s feet] [-T date] filesystem\n"
|
|
" dump [-W | -w]\n");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Pick up a numeric argument. It must be nonnegative and in the given
|
|
* range (except that a vmax of 0 means unlimited).
|
|
*/
|
|
static long
|
|
numarg(meaning, vmin, vmax)
|
|
char *meaning;
|
|
long vmin, vmax;
|
|
{
|
|
char *p;
|
|
long val;
|
|
|
|
val = strtol(optarg, &p, 10);
|
|
if (*p)
|
|
errx(1, "illegal %s -- %s", meaning, optarg);
|
|
if (val < vmin || (vmax && val > vmax))
|
|
errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax);
|
|
return (val);
|
|
}
|
|
|
|
void
|
|
sig(signo)
|
|
int signo;
|
|
{
|
|
switch(signo) {
|
|
case SIGALRM:
|
|
case SIGBUS:
|
|
case SIGFPE:
|
|
case SIGHUP:
|
|
case SIGTERM:
|
|
case SIGTRAP:
|
|
if (pipeout)
|
|
quit("Signal on pipe: cannot recover\n");
|
|
msg("Rewriting attempted as response to unknown signal.\n");
|
|
(void)fflush(stderr);
|
|
(void)fflush(stdout);
|
|
close_rewind();
|
|
exit(X_REWRITE);
|
|
/* NOTREACHED */
|
|
case SIGSEGV:
|
|
msg("SIGSEGV: ABORTING!\n");
|
|
(void)signal(SIGSEGV, SIG_DFL);
|
|
(void)kill(0, SIGSEGV);
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
|
|
char *
|
|
rawname(cp)
|
|
char *cp;
|
|
{
|
|
static char rawbuf[MAXPATHLEN];
|
|
char *dp = strrchr(cp, '/');
|
|
|
|
if (dp == NULL)
|
|
return (NULL);
|
|
*dp = '\0';
|
|
(void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
|
|
rawbuf[MAXPATHLEN-1] = '\0';
|
|
*dp = '/';
|
|
(void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
|
|
(void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
|
|
return (rawbuf);
|
|
}
|
|
|
|
/*
|
|
* obsolete --
|
|
* Change set of key letters and ordered arguments into something
|
|
* getopt(3) will like.
|
|
*/
|
|
static void
|
|
obsolete(argcp, argvp)
|
|
int *argcp;
|
|
char **argvp[];
|
|
{
|
|
int argc, flags;
|
|
char *ap, **argv, *flagsp, **nargv, *p;
|
|
|
|
/* Setup. */
|
|
argv = *argvp;
|
|
argc = *argcp;
|
|
|
|
/* Return if no arguments or first argument has leading dash. */
|
|
ap = argv[1];
|
|
if (argc == 1 || *ap == '-')
|
|
return;
|
|
|
|
/* Allocate space for new arguments. */
|
|
if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
|
|
(p = flagsp = malloc(strlen(ap) + 2)) == NULL)
|
|
err(1, NULL);
|
|
|
|
*nargv++ = *argv;
|
|
argv += 2;
|
|
|
|
for (flags = 0; *ap; ++ap) {
|
|
switch (*ap) {
|
|
case 'B':
|
|
case 'b':
|
|
case 'd':
|
|
case 'f':
|
|
case 'h':
|
|
case 's':
|
|
case 'T':
|
|
if (*argv == NULL) {
|
|
warnx("option requires an argument -- %c", *ap);
|
|
usage();
|
|
}
|
|
if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
|
|
err(1, NULL);
|
|
nargv[0][0] = '-';
|
|
nargv[0][1] = *ap;
|
|
(void)strcpy(&nargv[0][2], *argv);
|
|
++argv;
|
|
++nargv;
|
|
break;
|
|
default:
|
|
if (!flags) {
|
|
*p++ = '-';
|
|
flags = 1;
|
|
}
|
|
*p++ = *ap;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Terminate flags. */
|
|
if (flags) {
|
|
*p = '\0';
|
|
*nargv++ = flagsp;
|
|
}
|
|
|
|
/* Copy remaining arguments. */
|
|
while (*nargv++ = *argv++);
|
|
|
|
/* Update argument count. */
|
|
*argcp = nargv - *argvp - 1;
|
|
}
|