2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@noos.fr>, 1999-2000
6 * Stelian Pop <pop@noos.fr> - AlcĂ´ve <www.alcove.fr>, 2000
10 * Copyright (c) 1980, 1991, 1993, 1994
11 * The Regents of the University of California. All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 static const char rcsid[] =
44 "$Id: main.c,v 1.31 2000/12/04 15:43:16 stelian Exp $";
47 #include <sys/param.h>
50 #include <linux/ext2_fs.h>
52 #include <bsdcompat.h>
55 #include <sys/vnode.h>
57 #include <ufs/inode.h>
60 #include <ufs/ufs/dinode.h>
61 #include <ufs/ffs/fs.h>
65 #include <protocols/dumprestore.h>
68 #include <compaterr.h>
78 #include <ext2fs/ext2fs.h>
82 #include "pathnames.h"
86 #define SBOFF (SBLOCK * DEV_BSIZE)
89 int notify = 0; /* notify operator flag */
90 int blockswritten = 0; /* number of blocks written on current tape */
91 int tapeno = 0; /* current tape number */
92 int density = 0; /* density in bytes/0.1" " <- this is for hilit19 */
93 int ntrec = NTREC; /* # tape blocks in each tape record */
94 int cartridge = 0; /* Assume non-cartridge tape */
95 int dokerberos = 0; /* Use Kerberos authentication */
96 long dev_bsize = 1; /* recalculated below */
97 long blocksperfile; /* output blocks per file */
98 char *host = NULL; /* remote host (if any) */
99 int sizest = 0; /* return size estimate only */
105 int maxbsize = 64*1024; /* XXX MAXBSIZE from sys/param.h */
106 static long numarg __P((const char *, long, long));
107 static void obsolete __P((int *, char **[]));
108 static void usage __P((void));
110 ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
111 int iexclude_num = 0; /* number of elements in the list */
114 main(int argc, char *argv[])
118 register struct dinode *dp;
119 register struct fstab *dt;
122 int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
126 char directory[MAXPATHLEN];
127 char pathname[MAXPATHLEN];
132 spcl.c_label[0] = '\0';
135 (void)time4(&spcl.c_date);
137 (void)time((time_t *)&spcl.c_date);
141 __progname = argv[0];
143 initialize_ext2_error_table();
146 tsize = 0; /* Default later, based on 'c' option for cart tapes */
149 if ((tapeprefix = getenv("TAPE")) == NULL)
150 tapeprefix = _PATH_DEFTAPE;
151 dumpdates = _PATH_DUMPDATES;
152 if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
153 quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
159 obsolete(&argc, &argv);
161 #define optstring "0123456789aB:b:cd:e:f:F:h:kL:Mns:ST:uWw"
163 #define optstring "0123456789aB:b:cd:e:f:F:h:L:Mns:ST:uWw"
165 while ((ch = getopt(argc, argv, optstring)) != -1)
169 case '0': case '1': case '2': case '3': case '4':
170 case '5': case '6': case '7': case '8': case '9':
174 case 'a': /* `auto-size', Write to EOM. */
178 case 'B': /* blocks per output file */
180 blocksperfile = numarg("number of blocks per file",
184 case 'b': /* blocks per tape write */
185 ntrec = numarg("number of blocks per write",
187 if (ntrec > maxbsize/1024) {
188 msg("Please choose a blocksize <= %dKB\n",
195 case 'c': /* Tape is cart. not 9-track */
200 case 'd': /* density, in bits per inch */
202 density = numarg("density", 10L, 327670L) / 10;
203 if (density >= 625 && !bflag)
204 ntrec = HIGHDENSITYTREC;
208 case 'e': /* exclude an inode */
209 if (iexclude_num == IEXCLUDE_MAXNUM) {
210 (void)fprintf(stderr, "Too many -e options\n");
213 iexclude_list[iexclude_num++] = numarg("inode to exclude",0L,0L);
214 if (iexclude_list[iexclude_num-1] <= ROOTINO) {
215 (void)fprintf(stderr, "Cannot exclude inode %ld\n", iexclude_list[iexclude_num-1]);
218 msg("Added %d to exclude list\n",
219 iexclude_list[iexclude_num-1]);
222 case 'f': /* output file */
226 case 'F': /* end of tape script */
231 honorlevel = numarg("honor level", 0L, 10L);
242 * Note that although there are LBLSIZE characters,
243 * the last must be '\0', so the limit on strlen()
244 * is really LBLSIZE-1.
246 strncpy(spcl.c_label, optarg, LBLSIZE);
247 spcl.c_label[LBLSIZE-1] = '\0';
248 if (strlen(optarg) > LBLSIZE-1) {
250 "WARNING Label `%s' is larger than limit of %d characters.\n",
252 msg("WARNING: Using truncated label `%s'.\n",
257 case 'M': /* multi-volume flag */
261 case 'n': /* notify operators */
265 case 's': /* tape size, feet */
267 tsize = numarg("tape size", 1L, 0L) * 12 * 10;
271 sizest = 1; /* return size estimate only */
274 case 'T': /* time of last dump */
275 spcl.c_ddate = unctime(optarg);
276 if (spcl.c_ddate < 0) {
277 (void)fprintf(stderr, "bad time \"%s\"\n",
285 case 'u': /* update dumpdates */
289 case 'W': /* what to do */
292 exit(X_FINOK); /* do nothing else */
301 (void)fprintf(stderr, "Must specify disk or filesystem\n");
305 if (strlen(diskparam) >= MAXPATHLEN) {
306 (void)fprintf(stderr, "Disk or filesystem name too long: %s\n", diskparam);
311 (void)fprintf(stderr, "Unknown arguments to dump:");
313 (void)fprintf(stderr, " %s", *argv++);
314 (void)fprintf(stderr, "\n");
317 if (Tflag && uflag) {
318 (void)fprintf(stderr,
319 "You cannot use the T and u flags together.\n");
322 if (strcmp(tapeprefix, "-") == 0) {
324 tapeprefix = "standard output";
328 blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
329 else if (!unlimited) {
331 * Determine how to default tape size and density
334 * 9-track 1600 bpi (160 bytes/.1") 2300 ft.
335 * 9-track 6250 bpi (625 bytes/.1") 2300 ft.
336 * cartridge 8000 bpi (100 bytes/.1") 1700 ft.
338 * hilit19 hits again: "
341 density = cartridge ? 100 : 160;
343 tsize = cartridge ? 1700L*120L : 2300L*120L;
346 if (strchr(tapeprefix, ':')) {
348 tapeprefix = strchr(host, ':');
349 *tapeprefix++ = '\0';
351 if (index(tapeprefix, '\n')) {
352 (void)fprintf(stderr, "invalid characters in tape\n");
355 if (rmthost(host) == 0)
358 (void)fprintf(stderr, "remote dump not enabled\n");
362 (void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
364 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
366 if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
367 signal(SIGTRAP, sig);
368 if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
370 if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
372 if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
373 signal(SIGSEGV, sig);
374 if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
375 signal(SIGTERM, sig);
376 if (signal(SIGINT, interrupt) == SIG_IGN)
377 signal(SIGINT, SIG_IGN);
378 set_operators(); /* /etc/group snarfed */
379 getfstab(); /* /etc/fstab snarfed */
381 disk = get_device_name(diskparam);
382 if (!disk) { /* null means the disk is some form
383 of LABEL= or UID= but it was not
385 msg("Cannot find a disk having %s\n", diskparam);
389 * disk may end in / and this can confuse
392 if (strlen(disk) > 1 && disk[strlen(disk) - 1] == '/')
393 disk[strlen(disk) - 1] = '\0';
395 * disk can be either the full special file name,
396 * the suffix of the special file name,
397 * the special name missing the leading '/',
398 * the file system name with or without the leading '/'.
400 if ((dt = fstabsearch(disk)) != NULL) {
401 disk = rawname(dt->fs_spec);
402 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
403 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
407 if (realpath(disk, pathname) == NULL)
409 strcpy(pathname, disk);
411 * The argument could be now a mountpoint of
412 * a filesystem specified in fstab. Search for it.
414 if ((dt = fstabsearch(pathname)) != NULL) {
415 disk = rawname(dt->fs_spec);
416 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
417 (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
420 * The argument was not found in the fstab
421 * assume that this is a subtree and search for it
423 dt = fstabsearchdir(pathname, directory);
425 char name[MAXPATHLEN];
426 (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
427 (void)snprintf(name, sizeof(name), "%s (dir %s)",
428 dt->fs_file, directory);
429 (void)strncpy(spcl.c_filesys, name, NAMELEN);
430 disk = rawname(dt->fs_spec);
432 (void)strncpy(spcl.c_dev, disk, NAMELEN);
433 (void)strncpy(spcl.c_filesys, "an unlisted file system",
438 (void)strncpy(spcl.c_dev, disk, NAMELEN);
439 (void)strncpy(spcl.c_filesys, "an unlisted file system",
444 if (directory[0] != 0) {
446 (void)fprintf(stderr, "Only level 0 dumps are allowed on a subdirectory\n");
450 (void)fprintf(stderr, "You can't update the dumpdates file when dumping a subdirectory\n");
454 spcl.c_dev[NAMELEN-1] = '\0';
455 spcl.c_filesys[NAMELEN-1] = '\0';
456 (void)gethostname(spcl.c_host, NAMELEN);
457 spcl.c_host[NAMELEN-1] = '\0';
458 spcl.c_level = level - '0';
459 spcl.c_type = TS_TAPE;
461 getdumptime(uflag); /* dumpdates snarfed */
463 if (spcl.c_ddate == 0 && spcl.c_level) {
464 msg("WARNING: There is no inferior level dump on this filesystem\n");
465 msg("WARNING: Assuming a level 0 dump by default\n");
471 snprintf(tape, MAXPATHLEN, "%s%03d", tapeprefix, tapeno + 1);
473 strncpy(tape, tapeprefix, MAXPATHLEN);
474 tape[MAXPATHLEN - 1] = '\0';
478 msg("Date of this level %c dump: %s", level,
480 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
482 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
484 msg("Date of last level %c dump: %s", lastlevel,
486 spcl.c_ddate == 0 ? "the epoch\n" : ctime4(&spcl.c_ddate));
488 spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
490 msg("Dumping %s (%s) ", disk, spcl.c_filesys);
492 msgtail("to %s on host %s\n", tape, host);
494 msgtail("to %s\n", tape);
495 } /* end of size estimate */
498 retval = dump_fs_open(disk, &fs);
500 com_err(disk, retval, "while opening filesystem");
501 if (retval == EXT2_ET_REV_TOO_HIGH)
502 printf ("Get a newer version of dump!\n");
505 if (fs->super->s_rev_level > DUMP_CURRENT_REV) {
506 com_err(disk, retval, "while opening filesystem");
507 printf ("Get a newer version of dump!\n");
510 if ((diskfd = open(disk, O_RDONLY)) < 0) {
511 msg("Cannot open %s\n", disk);
514 /* if no user label specified, use ext2 filesystem label if available */
515 if (spcl.c_label[0] == '\0') {
517 if ( (lbl = get_device_label(disk)) != NULL) {
518 strncpy(spcl.c_label, lbl, LBLSIZE);
519 spcl.c_label[LBLSIZE-1] = '\0';
522 strcpy(spcl.c_label, "none"); /* safe strcpy. */
525 dev_bsize = DEV_BSIZE;
526 dev_bshift = ffs(dev_bsize) - 1;
527 if (dev_bsize != (1 << dev_bshift))
528 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
529 tp_bshift = ffs(TP_BSIZE) - 1;
530 if (TP_BSIZE != (1 << tp_bshift))
531 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
532 maxino = fs->super->s_inodes_count;
534 spcl.c_flags |= DR_NEWINODEFMT;
536 #else /* __linux __*/
537 if ((diskfd = open(disk, O_RDONLY)) < 0) {
538 msg("Cannot open %s\n", disk);
542 sblock = (struct fs *)sblock_buf;
543 bread(SBOFF, (char *) sblock, SBSIZE);
544 if (sblock->fs_magic != FS_MAGIC)
545 quit("bad sblock magic number\n");
546 dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
547 dev_bshift = ffs(dev_bsize) - 1;
548 if (dev_bsize != (1 << dev_bshift))
549 quit("dev_bsize (%d) is not a power of 2", dev_bsize);
550 tp_bshift = ffs(TP_BSIZE) - 1;
551 if (TP_BSIZE != (1 << tp_bshift))
552 quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
554 if (sblock->fs_inodefmt >= FS_44INODEFMT)
555 spcl.c_flags |= DR_NEWINODEFMT;
557 maxino = sblock->fs_ipg * sblock->fs_ncg;
558 #endif /* __linux__ */
559 mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
560 usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
561 dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
562 dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
563 if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
564 quit("out of memory allocating inode maps\n");
565 tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
567 nonodump = spcl.c_level < honorlevel;
569 msg("Label: %s\n", spcl.c_label);
572 (void)signal(SIGINFO, statussig);
576 msg("mapping (Pass I) [regular files]\n");
578 if (directory[0] == 0)
579 anydirskipped = mapfiles(maxino, &tapesize);
581 anydirskipped = mapfilesfromdir(maxino, &tapesize, directory);
583 anydirskipped = mapfiles(maxino, &tapesize);
587 msg("mapping (Pass II) [directories]\n");
588 while (anydirskipped) {
589 anydirskipped = mapdirs(maxino, &tapesize);
593 printf("%.0f\n", ((double)tapesize + 11) * TP_BSIZE);
595 } /* stop here for size estimate */
597 if (pipeout || unlimited) {
598 tapesize += 11; /* 10 trailer blocks + 1 map header */
599 msg("estimated %ld tape blocks.\n", tapesize);
604 fetapes = (double) tapesize / blocksperfile;
605 else if (cartridge) {
606 /* Estimate number of tapes, assuming streaming stops at
607 the end of each block written, and not in mid-block.
608 Assume no erroneous blocks; this can be compensated
609 for with an artificially low tape size. */
611 ( (double) tapesize /* blocks */
612 * TP_BSIZE /* bytes/block */
613 * (1.0/density) /* 0.1" / byte " */
615 (double) tapesize /* blocks */
616 * (1.0/ntrec) /* streaming-stops per block */
617 * 15.48 /* 0.1" / streaming-stop " */
618 ) * (1.0 / tsize ); /* tape / 0.1" " */
620 /* Estimate number of tapes, for old fashioned 9-track
622 int tenthsperirg = (density == 625) ? 3 : 7;
624 ( (double) tapesize /* blocks */
625 * TP_BSIZE /* bytes / block */
626 * (1.0/density) /* 0.1" / byte " */
628 (double) tapesize /* blocks */
629 * (1.0/ntrec) /* IRG's / block */
630 * tenthsperirg /* 0.1" / IRG " */
631 ) * (1.0 / tsize ); /* tape / 0.1" " */
633 etapes = fetapes; /* truncating assignment */
635 /* count the dumped inodes map on each additional tape */
636 tapesize += (etapes - 1) *
637 (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
638 tapesize += etapes + 10; /* headers + 10 trailer blks */
639 msg("estimated %ld tape blocks on %3.2f tape(s).\n",
644 * Allocate tape buffer.
648 "can't allocate tape buffers - try a smaller blocking factor.\n");
652 (void)time4(&(tstart_writing));
654 (void)time((time_t *)&(tstart_writing));
656 dumpmap(usedinomap, TS_CLRI, maxino - 1);
658 msg("dumping (Pass III) [directories]\n");
659 dirty = 0; /* XXX just to get gcc to shut up */
660 for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
661 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
665 if ((dirty & 1) == 0)
668 * Skip directory inodes deleted and maybe reallocated
671 if ((dp->di_mode & IFMT) != IFDIR)
675 * Skip directory inodes deleted and not yes reallocated...
677 if (dp->di_nlink == 0 || dp->di_dtime != 0)
679 (void)dumpdirino(dp, ino);
681 (void)dumpino(dp, ino);
685 msg("dumping (Pass IV) [regular files]\n");
686 for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
687 if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
691 if ((dirty & 1) == 0)
694 * Skip inodes deleted and reallocated as directories.
697 if ((dp->di_mode & IFMT) == IFDIR)
701 * No need to check here for deleted and not yes reallocated inodes
702 * since this is done in dumpino().
705 (void)dumpino(dp, ino);
709 (void)time4(&(tend_writing));
711 (void)time((time_t *)&(tend_writing));
713 spcl.c_type = TS_END;
714 for (i = 0; i < ntrec; i++)
715 writeheader(maxino - 1);
720 msg("%ld tape blocks (%.2fMB)\n", spcl.c_tapea,
721 ((double)spcl.c_tapea * TP_BSIZE / 1048576));
723 msg("%ld tape blocks (%.2fMB) on %d volume(s)\n",
725 ((double)spcl.c_tapea * TP_BSIZE / 1048576),
728 /* report dump performance, avoid division through zero */
729 if (tend_writing - tstart_writing == 0)
730 msg("finished in less than a second\n");
732 msg("finished in %d seconds, throughput %d KBytes/sec\n",
733 tend_writing - tstart_writing,
734 spcl.c_tapea / (tend_writing - tstart_writing));
738 msg("Date of this level %c dump: %s", level,
739 spcl.c_date == 0 ? "the epoch\n" : ctime4(&spcl.c_date));
741 msg("Date of this level %c dump: %s", level,
742 spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
744 msg("Date this dump completed: %s", ctime(&tnow));
746 msg("Average transfer rate: %ld KB/s\n", xferrate / tapeno);
748 broadcast("DUMP IS DONE!\7\7\n");
749 msg("DUMP IS DONE\n");
752 return 0; /* gcc - shut up */
758 char white[MAXPATHLEN];
761 strncpy(white, __progname, MAXPATHLEN-1);
762 white[MAXPATHLEN-1] = '\0';
763 for (i=0; i<MAXPATHLEN; ++i)
764 if (white[i] != '\0') white[i] = ' ';
767 "%s %s\n", __progname, _DUMP_VERSION);
769 "usage:\t%s [-0123456789ac"
773 "MnSu] [-B records] [-b blocksize] [-d density]\n"
774 "\t%s [-e inode#] [-f file] [-h level] [-s feet] [-T date] filesystem\n"
775 "\t%s [-W | -w]\n", __progname, white, __progname);
780 * Pick up a numeric argument. It must be nonnegative and in the given
781 * range (except that a vmax of 0 means unlimited).
784 numarg(const char *meaning, long vmin, long vmax)
789 val = strtol(optarg, &p, 10);
791 errx(X_STARTUP, "illegal %s -- %s", meaning, optarg);
792 if (val < vmin || (vmax && val > vmax))
793 errx(X_STARTUP, "%s must be between %ld and %ld", meaning, vmin, vmax);
808 quit("Signal on pipe: cannot recover\n");
809 msg("Rewriting attempted as response to unknown signal.\n");
810 (void)fflush(stderr);
811 (void)fflush(stdout);
816 msg("SIGSEGV: ABORTING!\n");
817 (void)signal(SIGSEGV, SIG_DFL);
818 (void)kill(0, SIGSEGV);
828 #else /* __linux__ */
829 static char rawbuf[MAXPATHLEN];
830 char *dp = strrchr(cp, '/');
835 (void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
836 rawbuf[MAXPATHLEN-1] = '\0';
838 (void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
839 (void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
841 #endif /* __linux__ */
846 * Change set of key letters and ordered arguments into something
847 * getopt(3) will like.
850 obsolete(int *argcp, char **argvp[])
853 char *ap, **argv, *flagsp=NULL, **nargv, *p=NULL;
859 /* Return if no arguments or first argument has leading dash. */
861 if (argc == 1 || *ap == '-')
864 /* Allocate space for new arguments. */
865 if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
866 (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
867 err(X_STARTUP, "malloc new args");
872 for (flags = 0; *ap; ++ap) {
885 warnx("option requires an argument -- %c", *ap);
888 if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
889 err(X_STARTUP, "malloc arg");
892 (void)strcpy(&nargv[0][2], *argv);
906 /* Terminate flags. */
912 /* Copy remaining arguments. */
913 while ((*nargv++ = *argv++));
915 /* Update argument count. */
916 *argcp = nargv - *argvp - 1;