(c192844eb)

#include <stdbool.h>
#include <dpkg/tarfn.h>

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Data Structures
struct	tarcontext

struct	pkg_deconf_list

Functions
void	clear_deconfigure_queue (void)

void	enqueue_deconfigure (struct pkginfo pkg, struct pkginfo pkg_removal, enum pkgwant reason)

void	enqueue_conflictor (struct pkginfo *pkg)

void	cu_pathname (int argc, void **argv)

void	cu_cidir (int argc, void **argv)

void	cu_fileslist (int argc, void **argv)

void	cu_backendpipe (int argc, void **argv)

void	cu_installnew (int argc, void **argv)
	Something went wrong and we're undoing.

void	cu_prermupgrade (int argc, void **argv)

void	cu_prerminfavour (int argc, void **argv)

void	cu_preinstverynew (int argc, void **argv)

void	cu_preinstnew (int argc, void **argv)

void	cu_preinstupgrade (int argc, void **argv)

void	cu_postrmupgrade (int argc, void **argv)

void	cu_prermdeconfigure (int argc, void **argv)

void	ok_prermdeconfigure (int argc, void **argv)

void	setupfnamevbs (const char *filename)

int	tarobject (struct tar_archive tar, struct tar_entry ti)

int	tarfileread (struct tar_archive tar, char buf, int len)

void	tar_deferred_extract (struct fsys_namenode_list files, struct pkginfo pkg)

struct fsys_namenode_list *	tar_fsys_namenode_queue_push (struct fsys_namenode_queue queue, struct fsys_namenode namenode)

bool	filesavespackage (struct fsys_namenode_list , struct pkginfo , struct pkginfo *pkgbeinginstalled)
	Check if a file or directory will save a package from disappearance.

void	check_conflict (struct dependency dep, struct pkginfo pkg, const char *pfilename)

void	check_breaks (struct dependency dep, struct pkginfo pkg, const char *pfilename)

Variables
struct varbuf_state	fname_state

struct varbuf_state	fnametmp_state

struct varbuf_state	fnamenew_state

struct varbuf	fnamevb

struct varbuf	fnametmpvb

struct varbuf	fnamenewvb

struct pkg_deconf_list *	deconfigure

int	cleanup_pkg_failed

int	cleanup_conflictor_failed

Function Documentation

◆ check_breaks()

void check_breaks	(	struct dependency *	dep,
		struct pkginfo *	pkg,
		const char *	pfilename
	)

References _, pkginfo::available, pkginfo::clientdata, depisok(), ensure_package_clientdata(), f_autodeconf, force_breaks(), internerr, perpackagestate::istobe, dependency::list, notice(), ohshit(), PKG_ISTOBE_NORMAL, pkg_name(), pkgbin_name(), pnaw_always, pnaw_nonambig, varbuf_destroy(), VARBUF_INIT, varbuf_str(), and warning().

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◆ check_conflict()

void check_conflict	(	struct dependency *	dep,
		struct pkginfo *	pkg,
		const char *	pfilename
	)

References _, pkginfo::available, dep_depends, dep_predepends, dep_provides, depisok(), enqueue_conflictor(), ensure_package_clientdata(), pkgbin::essential, force_conflicts(), FORCE_REMOVE_ESSENTIAL, FORCE_REMOVE_PROTECTED, FORCE_REMOVE_REINSTREQ, in_force(), internerr, pkgbin::is_protected, notice(), ohshit(), PKG_EFLAG_REINSTREQ, PKG_ISTOBE_DECONFIGURE, PKG_ISTOBE_INSTALLNEW, PKG_ISTOBE_NORMAL, PKG_ISTOBE_REMOVE, pkg_name(), PKG_STAT_INSTALLED, PKG_STAT_TRIGGERSAWAITED, PKG_STAT_TRIGGERSPENDING, PKG_WANT_HOLD, PKG_WANT_INSTALL, pkgbin_name(), pnaw_always, pnaw_nonambig, skip_due_to_hold(), dependency::type, varbuf_destroy(), VARBUF_INIT, varbuf_str(), and warning().

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◆ clear_deconfigure_queue()

void clear_deconfigure_queue ( void )

References deconfigure, and pkg_deconf_list::next.

Referenced by process_archive().

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◆ cu_backendpipe()

void cu_backendpipe	(	int	argc,
		void **	argv
	)

◆ cu_cidir()

void cu_cidir	(	int	argc,
		void **	argv
	)

References path_remove_tree(), and dependency::type.

Referenced by process_archive().

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◆ cu_fileslist()

void cu_fileslist	(	int	argc,
		void **	argv
	)

Referenced by process_archive().

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◆ cu_installnew()

void cu_installnew	(	int	argc,
		void **	argv
	)

Something went wrong and we're undoing.

We have the following possible situations for non-conffiles: «pathname».dpkg-tmp exists - in this case we want to remove «pathname» if it exists and replace it with «pathname».dpkg-tmp. This undoes the backup operation. «pathname».dpkg-tmp does not exist - «pathname» may be on the disk, as a new file which didn't fail, remove it if it is.

In both cases, we also make sure we delete «pathname».dpkg-new in case that's still hanging around.

For conffiles, we simply delete «pathname».dpkg-new. For these, «pathname».dpkg-tmp shouldn't exist, as we don't make a backup at this stage. Just to be on the safe side, though, we don't look for it.

References _, varbuf::buf, cleanup_conflictor_failed, cleanup_pkg_failed, dbg_eachfile, dbg_eachfiledetail, debug(), fsys_namenode::flags, fnamenewvb, fnametmpvb, fnamevb, FNNF_NEW_CONFF, FNNF_NO_ATOMIC_OVERWRITE, FNNF_PLACED_ON_DISK, fsys_namenode::name, ohshite(), secure_remove(), and setupfnamevbs().

Referenced by tarobject().

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◆ cu_pathname()

void cu_pathname	(	int	argc,
		void **	argv
	)

References path_remove_tree().

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◆ cu_postrmupgrade()

void cu_postrmupgrade	(	int	argc,
		void **	argv
	)

References pkginfo::available, cleanup_pkg_failed, maintscript_installed(), PREINSTFILE, vdew_nonambig, pkgbin::version, and versiondescribe().

Referenced by process_archive().

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◆ cu_preinstnew()

void cu_preinstnew	(	int	argc,
		void **	argv
	)

References pkginfo::available, cleanup_pkg_failed, pkginfo::installed, maintscript_new(), modstatdb_note(), pkg_clear_eflags(), PKG_EFLAG_REINSTREQ, pkg_set_status(), PKG_STAT_CONFIGFILES, POSTRMFILE, vdew_nonambig, pkgbin::version, and versiondescribe().

Referenced by process_archive().

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◆ cu_preinstupgrade()

void cu_preinstupgrade	(	int	argc,
		void **	argv
	)

References pkginfo::available, cleanup_pkg_failed, pkginfo::installed, maintscript_new(), modstatdb_note(), pkg_clear_eflags(), PKG_EFLAG_REINSTREQ, pkg_set_status(), POSTRMFILE, vdew_nonambig, pkgbin::version, and versiondescribe().

Referenced by process_archive().

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◆ cu_preinstverynew()

void cu_preinstverynew	(	int	argc,
		void **	argv
	)

References cleanup_pkg_failed, pkginfo::installed, maintscript_new(), modstatdb_note(), pkg_clear_eflags(), PKG_EFLAG_REINSTREQ, pkg_set_status(), PKG_STAT_NOTINSTALLED, pkgbin_blank(), and POSTRMFILE.

Referenced by process_archive().

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◆ cu_prermdeconfigure()

void cu_prermdeconfigure	(	int	argc,
		void **	argv
	)

References pkginfo::available, pkginfo::installed, maintscript_postinst(), pkg_name(), PKG_STAT_INSTALLED, pkgbin_name(), pnaw_nonambig, post_postinst_tasks(), vdew_nonambig, pkgbin::version, and versiondescribe().

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◆ cu_prerminfavour()

void cu_prerminfavour	(	int	argc,
		void **	argv
	)

References pkginfo::available, cleanup_conflictor_failed, maintscript_postinst(), pkg_clear_eflags(), PKG_EFLAG_REINSTREQ, PKG_STAT_INSTALLED, pkgbin_name(), pnaw_nonambig, post_postinst_tasks(), vdew_nonambig, pkgbin::version, and versiondescribe().

Referenced by process_archive().

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◆ cu_prermupgrade()

void cu_prermupgrade	(	int	argc,
		void **	argv
	)

References pkginfo::available, cleanup_pkg_failed, maintscript_postinst(), pkg_clear_eflags(), PKG_EFLAG_REINSTREQ, PKG_STAT_INSTALLED, post_postinst_tasks(), vdew_nonambig, pkgbin::version, and versiondescribe().

Referenced by process_archive().

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◆ enqueue_conflictor()

void enqueue_conflictor ( struct pkginfo * pkg )

References pkg_queue_push().

Referenced by check_conflict().

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◆ enqueue_deconfigure()

void enqueue_deconfigure	(	struct pkginfo *	pkg,
		struct pkginfo *	pkg_removal,
		enum pkgwant	reason
	)

References pkginfo::clientdata, deconfigure, ensure_package_clientdata(), perpackagestate::istobe, m_malloc(), pkg_deconf_list::next, pkg_deconf_list::pkg, PKG_ISTOBE_DECONFIGURE, pkg_deconf_list::pkg_removal, and pkg_deconf_list::reason.

Referenced by process_archive().

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◆ filesavespackage()

bool filesavespackage	(	struct fsys_namenode_list *	file,
		struct pkginfo *	pkgtobesaved,
		struct pkginfo *	pkgbeinginstalled
	)

Check if a file or directory will save a package from disappearance.

A package can only be saved by a file or directory which is part only of itself - it must be neither part of the new package being installed nor part of any 3rd package (this is important so that shared directories don't stop packages from disappearing).

References dbg_eachfiledetail, debug(), pkginfo::files_list_valid, FNNF_NEW_INARCHIVE, fsys_node_pkgs_iter_free(), fsys_node_pkgs_iter_new(), fsys_node_pkgs_iter_next(), pkginfo::installed, pkgbin::multiarch, file::name, PKG_MULTIARCH_SAME, pkg_name(), pnaw_always, and pkginfo::set.