/* $NetBSD: options.c,v 1.15 1999/01/20 14:45:09 mrg Exp $ */ /*- * Copyright (c) 1992 Keith Muller. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Keith Muller of the University of California, San Diego. * * 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. */ #include #ifndef lint #if 0 static char sccsid[] = "@(#)options.c 8.2 (Berkeley) 4/18/94"; #else __RCSID("$NetBSD: options.c,v 1.15 1999/01/20 14:45:09 mrg Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include "pax.h" #include "options.h" #include "cpio.h" #include "tar.h" #include "extern.h" /* * Routines which handle command line options */ int cpio_mode; /* set if we are in cpio mode */ char *chdir_dir; /* directory to chdir to before operating */ static char *flgch = FLGCH; /* list of all possible flags (pax) */ static OPLIST *ophead = NULL; /* head for format specific options -x */ static OPLIST *optail = NULL; /* option tail */ static int no_op __P((void)); static void printflg __P((unsigned int)); static int c_frmt __P((const void *, const void *)); static off_t str_offt __P((char *)); static void pax_options __P((int, char **)); static void pax_usage __P((void)); static void tar_options __P((int, char **)); static void tar_usage __P((void)); static void cpio_options __P((int, char **)); static void cpio_usage __P((void)); #define GZIP_CMD "gzip" /* command to run as gzip */ #define COMPRESS_CMD "compress" /* command to run as compress */ /* * Format specific routine table - MUST BE IN SORTED ORDER BY NAME * (see pax.h for description of each function) * * name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read, * read, end_read, st_write, write, end_write, trail, * rd_data, wr_data, options */ FSUB fsub[] = { /* 0: OLD BINARY CPIO */ { "bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd, bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, NULL, cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, /* 1: OLD OCTAL CHARACTER CPIO */ { "cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd, cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, NULL, cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, /* 2: SVR4 HEX CPIO */ { "sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd, vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, NULL, cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, /* 3: SVR4 HEX CPIO WITH CRC */ { "sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd, vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, NULL, cpio_subtrail, rd_wrfile, wr_rdfile, bad_opt }, /* 4: OLD TAR */ { "tar", 10240, BLKMULT, 0, 1, BLKMULT, 0, tar_id, no_op, tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, tar_trail, NULL, rd_wrfile, wr_rdfile, tar_opt }, /* 5: POSIX USTAR */ { "ustar", 10240, BLKMULT, 0, 1, BLKMULT, 0, ustar_id, ustar_strd, ustar_rd, tar_endrd, ustar_stwr, ustar_wr, tar_endwr, tar_trail, NULL, rd_wrfile, wr_rdfile, bad_opt } }; #define F_BCPIO 0 /* old binary cpio format */ #define F_CPIO 1 /* old octal character cpio format */ #define F_SV4CPIO 2 /* SVR4 hex cpio format */ #define F_SV4CRC 3 /* SVR4 hex with crc cpio format */ #define F_TAR 4 /* format when called as tar */ #define F_USTAR 5 /* ustar format */ #define DEFLT F_USTAR /* default write format from list above */ /* * ford is the archive search order used by get_arc() to determine what kind * of archive we are dealing with. This helps to properly id archive formats * some formats may be subsets of others.... */ int ford[] = {F_USTAR, F_TAR, F_SV4CRC, F_SV4CPIO, F_CPIO, F_BCPIO, -1}; /* * options() * figure out if we are pax, tar or cpio. Call the appropriate options * parser */ #if __STDC__ void options(int argc, char **argv) #else void options(argc, argv) int argc; char **argv; #endif { /* * Are we acting like pax, tar or cpio (based on argv[0]) */ if ((argv0 = strrchr(argv[0], '/')) != NULL) argv0++; else argv0 = argv[0]; if (strcmp(NM_TAR, argv0) == 0) tar_options(argc, argv); else if (strcmp(NM_CPIO, argv0) == 0) cpio_options(argc, argv); else { argv0 = NM_PAX; pax_options(argc, argv); } } /* * pax_options() * look at the user specified flags. set globals as required and check if * the user specified a legal set of flags. If not, complain and exit */ #if __STDC__ static void pax_options(int argc, char **argv) #else static void pax_options(argc, argv) int argc; char **argv; #endif { int c; int i; unsigned int flg = 0; unsigned int bflg = 0; char *pt; FSUB tmp; extern char *optarg; extern int optind; /* * process option flags */ while ((c=getopt(argc,argv,"ab:cdf:iklno:p:rs:tuvwx:zB:DE:G:HLPT:U:XYZ")) != -1) { switch (c) { case 'a': /* * append */ flg |= AF; break; case 'b': /* * specify blocksize */ flg |= BF; if ((wrblksz = (int)str_offt(optarg)) <= 0) { tty_warn(1, "Invalid block size %s", optarg); pax_usage(); } break; case 'c': /* * inverse match on patterns */ cflag = 1; flg |= CF; break; case 'd': /* * match only dir on extract, not the subtree at dir */ dflag = 1; flg |= DF; break; case 'f': /* * filename where the archive is stored */ arcname = optarg; flg |= FF; break; case 'i': /* * interactive file rename */ iflag = 1; flg |= IF; break; case 'k': /* * do not clobber files that exist */ kflag = 1; flg |= KF; break; case 'l': /* * try to link src to dest with copy (-rw) */ lflag = 1; flg |= LF; break; case 'n': /* * select first match for a pattern only */ nflag = 1; flg |= NF; break; case 'o': /* * pass format specific options */ flg |= OF; if (opt_add(optarg) < 0) pax_usage(); break; case 'p': /* * specify file characteristic options */ for (pt = optarg; *pt != '\0'; ++pt) { switch(*pt) { case 'a': /* * do not preserve access time */ patime = 0; break; case 'e': /* * preserve user id, group id, file * mode, access/modification times */ pids = 1; pmode = 1; patime = 1; pmtime = 1; break; case 'm': /* * do not preserve modification time */ pmtime = 0; break; case 'o': /* * preserve uid/gid */ pids = 1; break; case 'p': /* * preserver file mode bits */ pmode = 1; break; default: tty_warn(1, "Invalid -p string: %c", *pt); pax_usage(); break; } } flg |= PF; break; case 'r': /* * read the archive */ flg |= RF; break; case 's': /* * file name substitution name pattern */ if (rep_add(optarg) < 0) { pax_usage(); break; } flg |= SF; break; case 't': /* * preserve access time on filesystem nodes we read */ tflag = 1; flg |= TF; break; case 'u': /* * ignore those older files */ uflag = 1; flg |= UF; break; case 'v': /* * verbose operation mode */ vflag = 1; flg |= VF; break; case 'w': /* * write an archive */ flg |= WF; break; case 'x': /* * specify an archive format on write */ tmp.name = optarg; frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); if (frmt != NULL) { flg |= XF; break; } tty_warn(1, "Unknown -x format: %s", optarg); (void)fputs("pax: Known -x formats are:", stderr); for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) (void)fprintf(stderr, " %s", fsub[i].name); (void)fputs("\n\n", stderr); pax_usage(); break; case 'z': /* * use gzip. Non standard option. */ zflag = 1; gzip_program = GZIP_CMD; break; case 'B': /* * non-standard option on number of bytes written on a * single archive volume. */ if ((wrlimit = str_offt(optarg)) <= 0) { tty_warn(1, "Invalid write limit %s", optarg); pax_usage(); } if (wrlimit % BLKMULT) { tty_warn(1, "Write limit is not a %d byte multiple", BLKMULT); pax_usage(); } flg |= CBF; break; case 'D': /* * On extraction check file inode change time before the * modification of the file name. Non standard option. */ Dflag = 1; flg |= CDF; break; case 'E': /* * non-standard limit on read faults * 0 indicates stop after first error, values * indicate a limit, "NONE" try forever */ flg |= CEF; if (strcmp(NONE, optarg) == 0) maxflt = -1; else if ((maxflt = atoi(optarg)) < 0) { tty_warn(1, "Error count value must be positive"); pax_usage(); } break; case 'G': /* * non-standard option for selecting files within an * archive by group (gid or name) */ if (grp_add(optarg) < 0) { pax_usage(); break; } flg |= CGF; break; case 'H': /* * follow command line symlinks only */ Hflag = 1; flg |= CHF; break; case 'L': /* * follow symlinks */ Lflag = 1; flg |= CLF; break; case 'P': /* * do NOT follow symlinks (default) */ Lflag = 0; flg |= CPF; break; case 'T': /* * non-standard option for selecting files within an * archive by modification time range (lower,upper) */ if (trng_add(optarg) < 0) { pax_usage(); break; } flg |= CTF; break; case 'U': /* * non-standard option for selecting files within an * archive by user (uid or name) */ if (usr_add(optarg) < 0) { pax_usage(); break; } flg |= CUF; break; case 'X': /* * do not pass over mount points in the file system */ Xflag = 1; flg |= CXF; break; case 'Y': /* * On extraction check file inode change time after the * modification of the file name. Non standard option. */ Yflag = 1; flg |= CYF; break; case 'Z': /* * On extraction check modification time after the * modification of the file name. Non standard option. */ Zflag = 1; flg |= CZF; break; case '?': default: pax_usage(); break; } } /* * figure out the operation mode of pax read,write,extract,copy,append * or list. check that we have not been given a bogus set of flags * for the operation mode. */ if (ISLIST(flg)) { act = LIST; bflg = flg & BDLIST; } else if (ISEXTRACT(flg)) { act = EXTRACT; bflg = flg & BDEXTR; } else if (ISARCHIVE(flg)) { act = ARCHIVE; bflg = flg & BDARCH; } else if (ISAPPND(flg)) { act = APPND; bflg = flg & BDARCH; } else if (ISCOPY(flg)) { act = COPY; bflg = flg & BDCOPY; } else pax_usage(); if (bflg) { printflg(flg); pax_usage(); } /* * if we are writing (ARCHIVE) we use the default format if the user * did not specify a format. when we write during an APPEND, we will * adopt the format of the existing archive if none was supplied. */ if (!(flg & XF) && (act == ARCHIVE)) frmt = &(fsub[DEFLT]); /* * process the args as they are interpreted by the operation mode */ switch (act) { case LIST: case EXTRACT: for (; optind < argc; optind++) if (pat_add(argv[optind]) < 0) pax_usage(); break; case COPY: if (optind >= argc) { tty_warn(0, "Destination directory was not supplied"); pax_usage(); } --argc; dirptr = argv[argc]; /* FALLTHROUGH */ case ARCHIVE: case APPND: for (; optind < argc; optind++) if (ftree_add(argv[optind]) < 0) pax_usage(); /* * no read errors allowed on updates/append operation! */ maxflt = 0; break; } } /* * tar_options() * look at the user specified flags. set globals as required and check if * the user specified a legal set of flags. If not, complain and exit */ #if __STDC__ static void tar_options(int argc, char **argv) #else static void tar_options(argc, argv) int argc; char **argv; #endif { int c; int fstdin = 0; /* * process option flags */ while ((c = getoldopt(argc, argv, "b:cef:lmoprutvwxzBC:HLPX:Z014578")) != -1) { switch(c) { case 'b': /* * specify blocksize */ if ((wrblksz = (int)str_offt(optarg)) <= 0) { tty_warn(1, "Invalid block size %s", optarg); tar_usage(); } break; case 'c': /* * create an archive */ act = ARCHIVE; break; case 'C': /* * chdir here before extracting. */ chdir_dir = optarg; break; case 'e': /* * stop after first error */ maxflt = 0; break; case 'f': /* * filename where the archive is stored */ if ((optarg[0] == '-') && (optarg[1]== '\0')) { /* * treat a - as stdin */ fstdin = 1; arcname = (char *)0; break; } fstdin = 0; arcname = optarg; break; case 'l': /* * do not pass over mount points in the file system */ Xflag = 1; break; case 'm': /* * do not preserve modification time */ pmtime = 0; break; case 'o': if (opt_add("write_opt=nodir") < 0) tar_usage(); break; case 'p': /* * preserve user id, group id, file * mode, access/modification times */ pids = 1; pmode = 1; patime = 1; pmtime = 1; break; case 'r': case 'u': /* * append to the archive */ act = APPND; break; case 't': /* * list contents of the tape */ act = LIST; break; case 'v': /* * verbose operation mode */ vflag = 1; break; case 'w': /* * interactive file rename */ iflag = 1; break; case 'x': /* * write an archive */ act = EXTRACT; break; case 'z': /* * use gzip. Non standard option. */ zflag = 1; gzip_program = GZIP_CMD; break; case 'B': /* * Nothing to do here, this is pax default */ break; case 'H': /* * follow command line symlinks only */ Hflag = 1; break; case 'L': /* * follow symlinks */ Lflag = 1; break; case 'P': /* * do not follow symlinks */ Lflag = 0; break; case 'X': /* * GNU tar compat: exclude the files listed in optarg */ if (tar_gnutar_X_compat(optarg) != 0) tar_usage(); break; case 'Z': /* * use compress. */ zflag = 1; gzip_program = COMPRESS_CMD; break; case '0': arcname = DEV_0; break; case '1': arcname = DEV_1; break; case '4': arcname = DEV_4; break; case '5': arcname = DEV_5; break; case '7': arcname = DEV_7; break; case '8': arcname = DEV_8; break; default: tar_usage(); break; } } argc -= optind; argv += optind; /* * if we are writing (ARCHIVE) specify tar, otherwise run like pax */ if (act == ARCHIVE) frmt = &(fsub[F_TAR]); /* * process the args as they are interpreted by the operation mode */ switch (act) { case LIST: case EXTRACT: default: while (*argv != (char *)NULL) if (pat_add(*argv++) < 0) tar_usage(); break; case ARCHIVE: case APPND: while (*argv != (char *)NULL) if (ftree_add(*argv++) < 0) tar_usage(); /* * no read errors allowed on updates/append operation! */ maxflt = 0; break; } if (!fstdin && ((arcname == (char *)NULL) || (*arcname == '\0'))) { arcname = getenv("TAPE"); if ((arcname == (char *)NULL) || (*arcname == '\0')) arcname = DEV_8; } } /* * cpio_options() * look at the user specified flags. set globals as required and check if * the user specified a legal set of flags. If not, complain and exit */ #if __STDC__ static void cpio_options(int argc, char **argv) #else static void cpio_options(argc, argv) int argc; char **argv; #endif { FSUB tmp; unsigned int flg = 0; unsigned int bflg = 0; int c, i; cpio_mode = uflag = 1; /* * process option flags */ while ((c = getoldopt(argc, argv, "ABC:E:H:I:LM:O:R:SVabcdfiklmoprstuv")) != -1) { switch(c) { case 'A': /* * append to an archive */ act = APPND; flg |= AF; break; case 'B': /* * set blocksize to 5120 */ blksz = 5120; break; case 'C': /* * specify blocksize */ if ((blksz = (int)str_offt(optarg)) <= 0) { tty_warn(1, "Invalid block size %s", optarg); tar_usage(); } break; #ifdef notyet case 'E': arg = optarg; break; #endif case 'H': /* * specify an archive format on write */ tmp.name = optarg; frmt = (FSUB *)bsearch((void *)&tmp, (void *)fsub, sizeof(fsub)/sizeof(FSUB), sizeof(FSUB), c_frmt); if (frmt != NULL) { flg |= XF; break; } tty_warn(1, "Unknown -H format: %s", optarg); (void)fputs("cpio: Known -H formats are:", stderr); for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) (void)fprintf(stderr, " %s", fsub[i].name); (void)fputs("\n\n", stderr); tar_usage(); break; case 'I': case 'O': /* * filename where the archive is stored */ if ((optarg[0] == '-') && (optarg[1]== '\0')) { /* * treat a - as stdin */ arcname = (char *)0; break; } arcname = optarg; break; case 'L': /* * follow symlinks */ Lflag = 1; flg |= CLF; break; #ifdef notyet case 'M': arg = optarg; break; case 'R': arg = optarg; break; #endif case 'S': cpio_swp_head = 1; break; #ifdef notyet case 'V': break; #endif case 'a': /* * preserve access time on filesystem nodes we read */ tflag = 1; flg |= TF; break; #ifdef notyet case 'b': break; #endif case 'c': frmt = &fsub[F_SV4CPIO]; break; case 'd': /* * pax does this by default .. */ flg |= RF; break; case 'f': /* * inverse match on patterns */ cflag = 1; flg |= CF; break; case 'i': /* * read the archive */ flg |= RF; break; #ifdef notyet case 'k': break; #endif case 'l': /* * try to link src to dest with copy (-rw) */ lflag = 1; flg |= LF; break; case 'm': /* * preserve mtime */ flg |= PF; pmtime = 1; break; case 'o': /* * write an archive */ flg |= WF; break; case 'p': /* * cpio -p is like pax -rw */ flg |= RF | WF; break; case 'r': /* * interactive file rename */ iflag = 1; flg |= IF; break; #ifdef notyet case 's': break; #endif case 't': act = LIST; break; case 'u': /* * don't ignore those older files */ uflag = 0; flg |= UF; break; case 'v': /* * verbose operation mode */ vflag = 1; flg |= VF; break; default: cpio_usage(); break; } } /* * figure out the operation mode of cpio. check that we have not been * given a bogus set of flags for the operation mode. */ if (ISLIST(flg)) { act = LIST; bflg = flg & BDLIST; } else if (ISEXTRACT(flg)) { act = EXTRACT; bflg = flg & BDEXTR; } else if (ISARCHIVE(flg)) { act = ARCHIVE; bflg = flg & BDARCH; } else if (ISAPPND(flg)) { act = APPND; bflg = flg & BDARCH; } else if (ISCOPY(flg)) { act = COPY; bflg = flg & BDCOPY; } else cpio_usage(); if (bflg) { cpio_usage(); } /* * if we are writing (ARCHIVE) we use the default format if the user * did not specify a format. when we write during an APPEND, we will * adopt the format of the existing archive if none was supplied. */ if (!(flg & XF) && (act == ARCHIVE)) frmt = &(fsub[F_BCPIO]); /* * process the args as they are interpreted by the operation mode */ switch (act) { case LIST: case EXTRACT: for (; optind < argc; optind++) if (pat_add(argv[optind]) < 0) cpio_usage(); break; case COPY: if (optind >= argc) { tty_warn(0, "Destination directory was not supplied"); cpio_usage(); } --argc; dirptr = argv[argc]; /* FALLTHROUGH */ case ARCHIVE: case APPND: for (; optind < argc; optind++) if (ftree_add(argv[optind]) < 0) cpio_usage(); /* * no read errors allowed on updates/append operation! */ maxflt = 0; break; } } /* * printflg() * print out those invalid flag sets found to the user */ #if __STDC__ static void printflg(unsigned int flg) #else static void printflg(flg) unsigned int flg; #endif { int nxt; int pos = 0; (void)fprintf(stderr,"%s: Invalid combination of options:", argv0); while ((nxt = ffs(flg)) != 0) { flg = flg >> nxt; pos += nxt; (void)fprintf(stderr, " -%c", flgch[pos-1]); } (void)putc('\n', stderr); } /* * c_frmt() * comparison routine used by bsearch to find the format specified * by the user */ #if __STDC__ static int c_frmt(const void *a, const void *b) #else static int c_frmt(a, b) void *a; void *b; #endif { return(strcmp(((FSUB *)a)->name, ((FSUB *)b)->name)); } /* * opt_next() * called by format specific options routines to get each format specific * flag and value specified with -o * Return: * pointer to next OPLIST entry or NULL (end of list). */ #if __STDC__ OPLIST * opt_next(void) #else OPLIST * opt_next() #endif { OPLIST *opt; if ((opt = ophead) != NULL) ophead = ophead->fow; return(opt); } /* * bad_opt() * generic routine used to complain about a format specific options * when the format does not support options. */ #if __STDC__ int bad_opt(void) #else int bad_opt() #endif { OPLIST *opt; if (ophead == NULL) return(0); /* * print all we were given */ tty_warn(1,"These format options are not supported"); while ((opt = opt_next()) != NULL) (void)fprintf(stderr, "\t%s = %s\n", opt->name, opt->value); pax_usage(); return(0); } /* * opt_add() * breaks the value supplied to -o into a option name and value. options * are given to -o in the form -o name-value,name=value * mulltiple -o may be specified. * Return: * 0 if format in name=value format, -1 if -o is passed junk */ #if __STDC__ int opt_add(char *str) #else int opt_add(str) char *str; #endif { OPLIST *opt; char *frpt; char *pt; char *endpt; if ((str == NULL) || (*str == '\0')) { tty_warn(0, "Invalid option name"); return(-1); } frpt = endpt = str; /* * break into name and values pieces and stuff each one into a * OPLIST structure. When we know the format, the format specific * option function will go through this list */ while ((frpt != NULL) && (*frpt != '\0')) { if ((endpt = strchr(frpt, ',')) != NULL) *endpt = '\0'; if ((pt = strchr(frpt, '=')) == NULL) { tty_warn(0, "Invalid options format"); return(-1); } if ((opt = (OPLIST *)malloc(sizeof(OPLIST))) == NULL) { tty_warn(0, "Unable to allocate space for option list"); return(-1); } *pt++ = '\0'; opt->name = frpt; opt->value = pt; opt->fow = NULL; if (endpt != NULL) frpt = endpt + 1; else frpt = NULL; if (ophead == NULL) { optail = ophead = opt; continue; } optail->fow = opt; optail = opt; } return(0); } /* * str_offt() * Convert an expression of the following forms to an off_t > 0. * 1) A positive decimal number. * 2) A positive decimal number followed by a b (mult by 512). * 3) A positive decimal number followed by a k (mult by 1024). * 4) A positive decimal number followed by a m (mult by 512). * 5) A positive decimal number followed by a w (mult by sizeof int) * 6) Two or more positive decimal numbers (with/without k,b or w). * seperated by x (also * for backwards compatibility), specifying * the product of the indicated values. * Return: * 0 for an error, a positive value o.w. */ #if __STDC__ static off_t str_offt(char *val) #else static off_t str_offt(val) char *val; #endif { char *expr; off_t num, t; # ifdef NET2_STAT num = strtol(val, &expr, 0); if ((num == LONG_MAX) || (num <= 0) || (expr == val)) # else num = strtoq(val, &expr, 0); if ((num == QUAD_MAX) || (num <= 0) || (expr == val)) # endif return(0); switch(*expr) { case 'b': t = num; num *= 512; if (t > num) return(0); ++expr; break; case 'k': t = num; num *= 1024; if (t > num) return(0); ++expr; break; case 'm': t = num; num *= 1048576; if (t > num) return(0); ++expr; break; case 'w': t = num; num *= sizeof(int); if (t > num) return(0); ++expr; break; } switch(*expr) { case '\0': break; case '*': case 'x': t = num; num *= str_offt(expr + 1); if (t > num) return(0); break; default: return(0); } return(num); } /* * no_op() * for those option functions where the archive format has nothing to do. * Return: * 0 */ #if __STDC__ static int no_op(void) #else static int no_op() #endif { return(0); } /* * pax_usage() * print the usage summary to the user */ #if __STDC__ void pax_usage(void) #else void pax_usage() #endif { (void)fputs("usage: pax [-cdnv] [-E limit] [-f archive] ", stderr); (void)fputs("[-s replstr] ... [-U user] ...", stderr); (void)fputs("\n [-G group] ... ", stderr); (void)fputs("[-T [from_date][,to_date]] ... ", stderr); (void)fputs("[pattern ...]\n", stderr); (void)fputs(" pax -r [-cdiknuvDYZ] [-E limit] ", stderr); (void)fputs("[-f archive] [-o options] ... \n", stderr); (void)fputs(" [-p string] ... [-s replstr] ... ", stderr); (void)fputs("[-U user] ... [-G group] ...\n ", stderr); (void)fputs("[-T [from_date][,to_date]] ... ", stderr); (void)fputs(" [pattern ...]\n", stderr); (void)fputs(" pax -w [-dituvHLPX] [-b blocksize] ", stderr); (void)fputs("[ [-a] [-f archive] ] [-x format] \n", stderr); (void)fputs(" [-B bytes] [-s replstr] ... ", stderr); (void)fputs("[-o options] ... [-U user] ...", stderr); (void)fputs("\n [-G group] ... ", stderr); (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr); (void)fputs("[file ...]\n", stderr); (void)fputs(" pax -r -w [-diklntuvDHLPXYZ] ", stderr); (void)fputs("[-p string] ... [-s replstr] ...", stderr); (void)fputs("\n [-U user] ... [-G group] ... ", stderr); (void)fputs("[-T [from_date][,to_date][/[c][m]]] ... ", stderr); (void)fputs("\n [file ...] directory\n", stderr); exit(1); /* NOTREACHED */ } /* * tar_usage() * print the usage summary to the user */ #if __STDC__ void tar_usage(void) #else void tar_usage() #endif { (void)fputs("usage: tar -{txru}[cevfblmopwBHLPX014578] [tapefile] ", stderr); (void)fputs("[blocksize] [exclude-file] file1 file2...\n", stderr); exit(1); /* NOTREACHED */ } /* * cpio_usage() * print the usage summary to the user */ #if __STDC__ void cpio_usage(void) #else void cpio_usage() #endif { #if 1 (void)fputs( "usage: cpio -i [-BcdfmrStuv] [ -C blksize ] [ -H header ]\n", stderr); (void)fputs(" [ -I file ] [ pattern ... ]\n", stderr); (void)fputs("usage: cpio -o [-aABcLv] [ -C bufsize ] [ -H header ]\n", stderr); (void)fputs(" [ -O file ]\n", stderr); (void)fputs("usage: cpio -p [ adlLmuv ] directory\n", stderr); #else /* no E, M, R, V, b, k or s */ (void)fputs("usage: cpio -i [-bBcdfkmrsStuvV] [ -C bufsize ]\n", stderr); (void)fputs(" [ -E file ] [ -H header ] [ -I file [ -M message ] ]\n", stderr); (void)fputs(" [ -R id ] [ pattern ... ]\n", stderr); (void)fputs("usage: cpio -o [-aABcLvV] [ -C bufsize ] [ -H header ]\n", stderr); (void)fputs(" [ -O file [ -M message ] ]\n", stderr); (void)fputs("usage: cpio -p [ adlLmuvV ] [ -R id ] directory\n", stderr); #endif exit(1); /* NOTREACHED */ }