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- /*
- * libdpkg - Debian packaging suite library routines
- * dpkg-db.h - declarations for in-core package database management
- *
- * Copyright (C) 1994,1995 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.
- */
-
- #ifndef DPKG_DB_H
- #define DPKG_DB_H
-
- #include <stdio.h>
- #include <stdlib.h>
-
- struct versionrevision {
- unsigned long epoch;
- const char *version;
- const char *revision;
- };
-
- enum deptype {
- dep_suggests,
- dep_recommends,
- dep_depends,
- dep_predepends,
- dep_conflicts,
- dep_provides,
- dep_replaces
- };
-
- enum depverrel {
- dvrf_earlier= 0001,
- dvrf_later= 0002,
- dvrf_strict= 0010,
- dvrf_orequal= 0020,
- dvrf_builtup= 0100,
- dvr_none= 0200,
- dvr_earlierequal= dvrf_builtup | dvrf_earlier | dvrf_orequal,
- dvr_earlierstrict= dvrf_builtup | dvrf_earlier | dvrf_strict,
- dvr_laterequal= dvrf_builtup | dvrf_later | dvrf_orequal,
- dvr_laterstrict= dvrf_builtup | dvrf_later | dvrf_strict,
- dvr_exact= 0400
- };
-
- struct dependency {
- struct pkginfo *up;
- struct dependency *next;
- struct deppossi *list;
- enum deptype type;
- };
-
- struct deppossi {
- struct dependency *up;
- struct pkginfo *ed;
- struct deppossi *next, *nextrev, *backrev;
- struct versionrevision version;
- enum depverrel verrel;
- int cyclebreak;
- };
-
- struct arbitraryfield {
- struct arbitraryfield *next;
- char *name;
- char *value;
- };
-
- struct conffile {
- struct conffile *next;
- char *name;
- char *hash;
- };
-
- struct filedetails {
- struct filedetails *next;
- char *name;
- char *msdosname;
- char *size;
- char *md5sum;
- };
-
- struct pkginfoperfile { /* pif */
- int valid;
- struct dependency *depends;
- struct deppossi *depended;
- int essential; /* The `essential' flag, 1=yes, 0=no (absent) */
- char *description, *maintainer, *source, *architecture, *installedsize;
- struct versionrevision version;
- struct conffile *conffiles;
- struct arbitraryfield *arbs;
- };
-
- struct perpackagestate; /* used by dselect only, but we keep a pointer here */
-
- struct pkginfo { /* pig */
- struct pkginfo *next;
- char *name;
- enum pkgwant {
- want_unknown, want_install, want_hold, want_deinstall, want_purge,
- want_sentinel /* Not allowed except as special sentinel value
- in some places */
- } want;
- enum pkgeflag {
- eflagf_reinstreq = 01,
- eflagf_obsoletehold = 02,
- eflagv_ok = 0,
- eflagv_reinstreq = eflagf_reinstreq,
- eflagv_obsoletehold = eflagf_obsoletehold,
- eflagv_obsoleteboth = eflagf_reinstreq | eflagf_obsoletehold
- } eflag; /* bitmask, but obsoletehold no longer used except when reading */
- enum pkgstatus {
- stat_notinstalled, stat_unpacked, stat_halfconfigured,
- stat_installed, stat_halfinstalled, stat_configfiles
- } status;
- enum pkgpriority {
- pri_required, pri_important, pri_standard, pri_recommended,
- pri_optional, pri_extra, pri_contrib,
- pri_other, pri_unknown, pri_unset=-1
- } priority;
- char *otherpriority;
- char *section;
- struct versionrevision configversion;
- struct filedetails *files;
- struct pkginfoperfile installed;
- struct pkginfoperfile available;
- struct perpackagestate *clientdata;
- };
-
- /*** from lock.c ***/
-
- void lockdatabase(const char *admindir);
- void unlockdatabase(const char *admindir);
-
- /*** from dbmodify.c ***/
-
- enum modstatdb_rw {
- /* Those marked with \*s*\ are possible returns from modstatdb_init. */
- msdbrw_readonly/*s*/, msdbrw_needsuperuserlockonly/*s*/,
- msdbrw_writeifposs,
- msdbrw_write/*s*/, msdbrw_needsuperuser,
- /* Now some optional flags: */
- msdbrw_flagsmask= ~077,
- /* ... of which there are currently none, but they'd start at 0100 */
- };
-
- enum modstatdb_rw modstatdb_init(const char *admindir, enum modstatdb_rw reqrwflags);
- void modstatdb_note(struct pkginfo *pkg);
- void modstatdb_shutdown(void);
-
- extern char *statusfile, *availablefile; /* initialised by modstatdb_init */
-
- /*** from database.c ***/
-
- struct pkginfo *findpackage(const char *name);
- void blankpackage(struct pkginfo *pp);
- void blankpackageperfile(struct pkginfoperfile *pifp);
- void blankversion(struct versionrevision*);
- int informative(struct pkginfo *pkg, struct pkginfoperfile *info);
- int countpackages(void);
- void resetpackages(void);
-
- struct pkgiterator *iterpkgstart(void);
- struct pkginfo *iterpkgnext(struct pkgiterator*);
- void iterpkgend(struct pkgiterator*);
-
- void hashreport(FILE*);
-
- /*** from parse.c ***/
-
- enum parsedbflags {
- pdb_recordavailable =001, /* Store in `available' in-core structures, not `status' */
- pdb_rejectstatus =002, /* Throw up an error if `Status' encountered */
- pdb_weakclassification=004 /* Ignore priority/section info if we already have any */
- };
-
- const char *illegal_packagename(const char *p, const char **ep);
- int parsedb(const char *filename, enum parsedbflags, struct pkginfo **donep,
- FILE *warnto, int *warncount);
- void copy_dependency_links(struct pkginfo *pkg,
- struct dependency **updateme,
- struct dependency *newdepends,
- int available);
-
- /*** from parsehelp.c ***/
-
- struct namevalue {
- const char *name;
- int value;
- };
-
- extern const struct namevalue booleaninfos[];
- extern const struct namevalue priorityinfos[];
- extern const struct namevalue statusinfos[];
- extern const struct namevalue eflaginfos[];
- extern const struct namevalue wantinfos[];
-
- const char *skip_slash_dotslash(const char *p);
-
- int informativeversion(const struct versionrevision *version);
-
- enum versiondisplayepochwhen { vdew_never, vdew_nonambig, vdew_always };
- void varbufversion(struct varbuf*, const struct versionrevision*,
- enum versiondisplayepochwhen);
- const char *parseversion(struct versionrevision *rversion, const char*);
- const char *versiondescribe(const struct versionrevision*,
- enum versiondisplayepochwhen);
-
- /*** from varbuf.c ***/
-
- struct varbuf;
-
- extern void varbufaddc(struct varbuf *v, int c);
- void varbufinit(struct varbuf *v);
- void varbufreset(struct varbuf *v);
- void varbufextend(struct varbuf *v);
- void varbuffree(struct varbuf *v);
- void varbufaddstr(struct varbuf *v, const char *s);
-
- /* varbufinit must be called exactly once before the use of each varbuf
- * (including before any call to varbuffree).
- *
- * However, varbufs allocated `static' are properly initialised anyway and
- * do not need varbufinit; multiple consecutive calls to varbufinit before
- * any use are allowed.
- *
- * varbuffree must be called after a varbuf is finished with, if anything
- * other than varbufinit has been done. After this you are allowed but
- * not required to call varbufinit again if you want to start using the
- * varbuf again.
- *
- * Callers using C++ need not worry about any of this.
- */
- struct varbuf {
- int used, size;
- char *buf;
-
- #ifdef __cplusplus
- void init() { varbufinit(this); }
- void free() { varbuffree(this); }
- varbuf() { varbufinit(this); }
- ~varbuf() { varbuffree(this); }
- inline void operator()(int c); // definition below
- void operator()(const char *s) { varbufaddstr(this,s); }
- inline void terminate(void/*to shut 2.6.3 up*/); // definition below
- void reset() { used=0; }
- const char *string() { terminate(); return buf; }
- #endif
- };
-
- #if HAVE_INLINE
- inline extern void varbufaddc(struct varbuf *v, int c) {
- if (v->used >= v->size) varbufextend(v);
- v->buf[v->used++]= c;
- }
- #endif
-
- #ifdef __cplusplus
- inline void varbuf::operator()(int c) { varbufaddc(this,c); }
- inline void varbuf::terminate(void/*to shut 2.6.3 up*/) { varbufaddc(this,0); used--; }
- #endif
-
- /*** from dump.c ***/
-
- void writerecord(FILE*, const char*,
- const struct pkginfo*, const struct pkginfoperfile*);
-
- void writedb(const char *filename, int available, int mustsync);
-
- void varbufrecord(struct varbuf*, const struct pkginfo*, const struct pkginfoperfile*);
- void varbufdependency(struct varbuf *vb, struct dependency *dep);
- void varbufprintf(struct varbuf *v, const char *fmt, ...) PRINTFFORMAT(2,3);
- /* NB THE VARBUF MUST HAVE BEEN INITIALISED AND WILL NOT BE NULL-TERMINATED */
-
- /*** from vercmp.c ***/
-
- int versionsatisfied(struct pkginfoperfile *it, struct deppossi *against);
- int versionsatisfied3(const struct versionrevision *it,
- const struct versionrevision *ref,
- enum depverrel verrel);
- int versioncompare(const struct versionrevision *version,
- const struct versionrevision *refversion);
- int epochsdiffer(const struct versionrevision *a,
- const struct versionrevision *b);
-
- /*** from nfmalloc.c ***/
-
- void *nfmalloc(size_t);
- char *nfstrsave(const char*);
- void nffreeall(void);
-
- #endif /* DPKG_DB_H */
-