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Diffstat (limited to 'split/main.c')
| -rw-r--r-- | split/main.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/split/main.c b/split/main.c new file mode 100644 index 000000000..08645350f --- /dev/null +++ b/split/main.c @@ -0,0 +1,176 @@ +/* + * dpkg-split - splitting and joining of multipart *.deb archives + * main.c - main program + * + * Copyright (C) 1995 Ian Jackson <iwj10@cus.cam.ac.uk> + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2, + * or (at your option) any later version. + * + * This is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with dpkg; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> +#include <assert.h> + +#include "config.h" +#include "dpkg.h" +#include "dpkg-db.h" +#include "version.h" +#include "myopt.h" + +#include "dpkg-split.h" + +static void printversion(void) { + if (!fputs + ("Debian GNU/Linux `" SPLITTER "' package archive split/join tool;\n" + "version " DPKG_VERSION_ARCH + ". Copyright (C) 1994,1995 Ian Jackson. This is free\n" + "software; see the GNU General Public Licence version 2 or later for copying\n" + "conditions. There is NO warranty. See dpkg-split --licence for details.\n", + stderr)) werr("stderr"); +} + +static void usage(void) { + if (!fputs("\ +Usage: " SPLITTER " -s|--split <file> [<prefix>] Split an archive.\n\ + " SPLITTER " -j|--join <part> <part> ... Join parts together.\n\ + " SPLITTER " -I|--info <part> ... Display info about a part.\n\ + " SPLITTER " -h|--help|--version|--licence Show help/version/licence.\n\ +\n\ + " SPLITTER " -a|--auto -o <complete> <part> Auto-accumulate parts.\n\ + " SPLITTER " -l|--listq List unmatched pieces.\n\ + " SPLITTER " -d|--discard [<filename> ...] Discard unmatched pieces.\n\ +\n\ +Options: --depotdir <directory> (default is /var/lib/dpkg/parts)\n\ + -S|--partsize <size> (in Kb, for -s, default is 450)\n\ + -o|--output <file> (for -j, default is <package>-<version>.deb)\n\ + -Q|--npquiet (be quiet when -a is not a part)\n\ + --msdos (generate 8.3 filenames)\n\ +\n\ +Exit status: 0 = OK; 1 = -a is not a part; 2 = trouble!\n", + stderr)) werr("stderr"); +} + +const char thisname[]= SPLITTER; +const char printforhelp[]= "Type " SPLITTER " --help for help."; + +dofunction *action=0; +const struct cmdinfo *cipaction=0; +long maxpartsize= SPLITPARTDEFMAX; +const char *depotdir= ADMINDIR "/" PARTSDIR, *outputfile= 0; +struct partqueue *queue= 0; +int npquiet= 0, msdos= 0; + +void rerr(const char *fn) { + ohshite("error reading %s",fn); +} + +void rerreof(FILE *f, const char *fn) { + if (ferror(f)) ohshite("error reading %.250s",fn); + ohshit("unexpected end of file in %.250s",fn); +} + +static void helponly(const struct cmdinfo *cip, const char *value) { + usage(); exit(0); +} +static void versiononly(const struct cmdinfo *cip, const char *value) { + printversion(); exit(0); +} + +static void setaction(const struct cmdinfo *cip, const char *value); + +static void setpartsize(const struct cmdinfo *cip, const char *value) { + long newpartsize; + char *endp; + + newpartsize= strtol(value,&endp,10); + if (newpartsize <= 0 || newpartsize > (INT_MAX >> 10)) + badusage("part size is far too large or is not positive"); + + maxpartsize= newpartsize << 10; + if (maxpartsize <= HEADERALLOWANCE) + badusage("part size must be at least %dk (to allow for header)", + (HEADERALLOWANCE >> 10) + 1); +} + +static dofunction *const dofunctions[]= { + do_split, + do_join, + do_info, + do_auto, + do_queue, + do_discard, +}; + +/* NB: the entries using setaction must appear first and be in the + * same order as dofunctions: + */ +static const struct cmdinfo cmdinfos[]= { + { "split", 's', 0, 0, 0, setaction }, + { "join", 'j', 0, 0, 0, setaction }, + { "info", 'I', 0, 0, 0, setaction }, + { "auto", 'a', 0, 0, 0, setaction }, + { "listq", 'l', 0, 0, 0, setaction }, + { "discard", 'd', 0, 0, 0, setaction }, + { "help", 'h', 0, 0, 0, helponly }, + { "version", 0, 0, 0, 0, versiononly }, + { "licence", 0, 0, 0, 0, showcopyright }, /* UK spelling */ + { "license", 0, 0, 0, 0, showcopyright }, /* US spelling */ + { "depotdir", 0, 1, 0, &depotdir, 0 }, + { "partsize", 'S', 1, 0, 0, setpartsize }, + { "output", 'o', 1, 0, &outputfile, 0 }, + { "npquiet", 'Q', 0, &npquiet, 0, 0, 1 }, + { "msdos", 0, 0, &msdos, 0, 0, 1 }, + { 0, 0 } +}; + +static void setaction(const struct cmdinfo *cip, const char *value) { + if (cipaction) + badusage("conflicting actions --%s and --%s",cip->olong,cipaction->olong); + cipaction= cip; + assert(cip-cmdinfos < sizeof(dofunctions)*sizeof(dofunction*)); + action= dofunctions[cip-cmdinfos]; +} + +int main(int argc, const char *const *argv) { + jmp_buf ejbuf; + int l; + char *p; + + if (setjmp(ejbuf)) { /* expect warning about possible clobbering of argv */ + error_unwind(ehflag_bombout); exit(2); + } + push_error_handler(&ejbuf,print_error_fatal,0); + + myopt(&argv,cmdinfos); + if (!cipaction) badusage("need an action option"); + + l= strlen(depotdir); + if (l && depotdir[l-1] != '/') { + p= nfmalloc(l+2); + strcpy(p,depotdir); + strcpy(p+l,"/"); + depotdir= p; + } + + setvbuf(stdout,0,_IONBF,0); + action(argv); + + if (ferror(stderr)) werr("stderr"); + + set_error_display(0,0); + error_unwind(ehflag_normaltidy); + exit(0); +} |