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authorcvs2svn <>2000-08-28 17:45:57 +0000
committercvs2svn <>2000-08-28 17:45:57 +0000
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This commit was manufactured by cvs2svn to create branch 'gh'.github/ghgh
Sprout from master 2000-08-28 17:45:56 UTC Jeff Johnston <jjohnstn@redhat.com> '' Delete: COPYING COPYING.LIB ChangeLog MAINTAINERS Makefile.in README README-maintainer-mode config-ml.in config.guess config.if config.sub config/ChangeLog config/acinclude.m4 config/mh-a68bsd config/mh-aix386 config/mh-apollo68 config/mh-armpic config/mh-cxux config/mh-cygwin config/mh-decstation config/mh-delta88 config/mh-dgux config/mh-dgux386 config/mh-djgpp config/mh-elfalphapic config/mh-hp300 config/mh-hpux config/mh-hpux8 config/mh-i370pic config/mh-ia64pic config/mh-interix config/mh-irix4 config/mh-irix5 config/mh-irix6 config/mh-lynxos config/mh-lynxrs6k config/mh-m68kpic config/mh-mingw32 config/mh-ncr3000 config/mh-ncrsvr43 config/mh-necv4 config/mh-openedition config/mh-papic config/mh-ppcpic config/mh-riscos config/mh-sco config/mh-solaris config/mh-sparcpic config/mh-sun3 config/mh-sysv config/mh-sysv4 config/mh-sysv5 config/mh-vaxult2 config/mh-x86pic config/mpw-mh-mpw config/mpw/ChangeLog config/mpw/MoveIfChange config/mpw/README config/mpw/forward-include config/mpw/g-mpw-make.sed config/mpw/mpw-touch config/mpw/mpw-true config/mpw/null-command config/mpw/open-brace config/mpw/tr-7to8-src config/mpw/true config/mt-aix43 config/mt-armpic config/mt-d30v config/mt-elfalphapic config/mt-i370pic config/mt-ia64pic config/mt-linux config/mt-m68kpic config/mt-netware config/mt-ospace config/mt-papic config/mt-ppcpic config/mt-sparcpic config/mt-v810 config/mt-wince config/mt-x86pic configure configure.in djunpack.bat etc/ChangeLog etc/Makefile.in etc/add-log.el etc/add-log.vi etc/configbuild.ein etc/configbuild.fig etc/configbuild.jin etc/configbuild.tin etc/configdev.ein etc/configdev.fig etc/configdev.jin etc/configdev.tin etc/configure etc/configure.in etc/configure.texi etc/make-stds.texi etc/standards.texi include/COPYING include/ChangeLog include/MAINTAINERS include/ansidecl.h include/aout/ChangeLog include/aout/adobe.h include/aout/aout64.h include/aout/ar.h include/aout/dynix3.h include/aout/encap.h include/aout/host.h include/aout/hp.h include/aout/hp300hpux.h include/aout/hppa.h include/aout/ranlib.h include/aout/reloc.h include/aout/stab.def include/aout/stab_gnu.h include/aout/sun4.h include/bfdlink.h include/bin-bugs.h include/bout.h include/callback.h include/coff/ChangeLog include/coff/a29k.h include/coff/alpha.h include/coff/apollo.h include/coff/arm.h include/coff/aux-coff.h include/coff/ecoff.h include/coff/go32exe.h include/coff/h8300.h include/coff/h8500.h include/coff/i386.h include/coff/i860.h include/coff/i960.h include/coff/ia64.h include/coff/internal.h include/coff/m68k.h include/coff/m88k.h include/coff/mcore.h include/coff/mips.h include/coff/mipspe.h include/coff/pe.h include/coff/powerpc.h include/coff/rs6000.h include/coff/rs6k64.h include/coff/sh.h include/coff/sparc.h include/coff/sym.h include/coff/symconst.h include/coff/ti.h include/coff/tic30.h include/coff/tic54x.h include/coff/tic80.h include/coff/w65.h include/coff/we32k.h include/coff/z8k.h include/demangle.h include/dis-asm.h include/dyn-string.h include/elf/ChangeLog include/elf/alpha.h include/elf/arc.h include/elf/arm.h include/elf/avr.h include/elf/common.h include/elf/cris.h include/elf/d10v.h include/elf/d30v.h include/elf/dwarf.h include/elf/dwarf2.h include/elf/external.h include/elf/fr30.h include/elf/hppa.h include/elf/i370.h include/elf/i386.h include/elf/i860.h include/elf/i960.h include/elf/ia64.h include/elf/internal.h include/elf/m32r.h include/elf/m68hc11.h include/elf/m68k.h include/elf/mcore.h include/elf/mips.h include/elf/mn10200.h include/elf/mn10300.h include/elf/pj.h include/elf/ppc.h include/elf/reloc-macros.h include/elf/sh.h include/elf/sparc.h include/elf/v850.h include/filenames.h include/floatformat.h include/fnmatch.h include/fopen-bin.h include/fopen-same.h include/fopen-vms.h include/gdbm.h include/getopt.h include/hashtab.h include/hp-symtab.h include/ieee.h include/libiberty.h include/mpw/ChangeLog include/mpw/README include/mpw/dir.h include/mpw/dirent.h include/mpw/fcntl.h include/mpw/grp.h include/mpw/mpw.h include/mpw/pwd.h include/mpw/spin.h include/mpw/stat.h include/mpw/sys/file.h include/mpw/sys/param.h include/mpw/sys/resource.h include/mpw/sys/stat.h include/mpw/sys/time.h include/mpw/sys/types.h include/mpw/utime.h include/mpw/varargs.h include/nlm/ChangeLog include/nlm/alpha-ext.h include/nlm/common.h include/nlm/external.h include/nlm/i386-ext.h include/nlm/internal.h include/nlm/ppc-ext.h include/nlm/sparc32-ext.h include/oasys.h include/objalloc.h include/obstack.h include/opcode/ChangeLog include/opcode/a29k.h include/opcode/alpha.h include/opcode/arc.h include/opcode/arm.h include/opcode/avr.h include/opcode/cgen.h include/opcode/convex.h include/opcode/cris.h include/opcode/d10v.h include/opcode/d30v.h include/opcode/h8300.h include/opcode/hppa.h include/opcode/i370.h include/opcode/i386.h include/opcode/i860.h include/opcode/i960.h include/opcode/ia64.h include/opcode/m68hc11.h include/opcode/m68k.h include/opcode/m88k.h include/opcode/mips.h include/opcode/mn10200.h include/opcode/mn10300.h include/opcode/np1.h include/opcode/ns32k.h include/opcode/pj.h include/opcode/pn.h include/opcode/ppc.h include/opcode/pyr.h include/opcode/sparc.h include/opcode/tahoe.h include/opcode/tic30.h include/opcode/tic54x.h include/opcode/tic80.h include/opcode/v850.h include/opcode/vax.h include/os9k.h include/partition.h include/progress.h include/regs/ChangeLog include/remote-sim.h include/sim-d10v.h include/sort.h include/splay-tree.h include/symcat.h install-sh libgloss/ChangeLog libgloss/Makefile.in libgloss/README libgloss/close.c libgloss/config/default.mh libgloss/config/default.mt libgloss/config/dos.mh libgloss/config/mips.mt libgloss/config/mn10200.mt libgloss/config/mn10300.mt libgloss/config/ppc.mh libgloss/configure libgloss/configure.in libgloss/d30v/Makefile.in libgloss/d30v/configure libgloss/d30v/configure.in libgloss/d30v/crt0.S libgloss/d30v/inbyte.c libgloss/d30v/outbyte.c libgloss/d30v/syscalls.c libgloss/debug.c libgloss/debug.h libgloss/doc/Makefile.in libgloss/doc/configure libgloss/doc/configure.in libgloss/doc/porting.texi libgloss/fr30/Makefile.in libgloss/fr30/configure libgloss/fr30/configure.in libgloss/fr30/crt0.s libgloss/fr30/syscalls.c libgloss/fstat.c libgloss/getpid.c libgloss/glue.h libgloss/hp74x/Makefile.in libgloss/hp74x/README libgloss/hp74x/checksum.c libgloss/hp74x/configure libgloss/hp74x/configure.in libgloss/hp74x/crt0.s libgloss/hp74x/debugger.h libgloss/hp74x/debugger.s libgloss/hp74x/diagnose.h libgloss/hp74x/hppa-defs.h libgloss/hp74x/hppa.ld libgloss/hp74x/io.c libgloss/hp74x/iva_table.h libgloss/hp74x/iva_table.s libgloss/hp74x/pa_stub.c libgloss/hp74x/test.c libgloss/i386/Makefile.in libgloss/i386/configure libgloss/i386/configure.in libgloss/i386/cygmon-crt0.S libgloss/i386/cygmon-gmon.c libgloss/i386/cygmon-gmon.h libgloss/i386/cygmon-salib.c libgloss/i386/cygmon-syscall.h libgloss/i386/cygmon.ld libgloss/i960/Makefile.in libgloss/i960/asm.h libgloss/i960/configure libgloss/i960/configure.in libgloss/i960/crt0.c libgloss/i960/mon-read.c libgloss/i960/mon-syscalls.S libgloss/i960/mon-write.c libgloss/i960/mon960.c libgloss/i960/mon960.ld libgloss/i960/syscall.h libgloss/isatty.c libgloss/kill.c libgloss/libnosys/Makefile.in libgloss/libnosys/acconfig.h libgloss/libnosys/close.c libgloss/libnosys/config.h.in libgloss/libnosys/configure libgloss/libnosys/configure.in libgloss/libnosys/environ.c libgloss/libnosys/execve.c libgloss/libnosys/fork.c libgloss/libnosys/fstat.c libgloss/libnosys/getpid.c libgloss/libnosys/gettod.c libgloss/libnosys/isatty.c libgloss/libnosys/kill.c libgloss/libnosys/link.c libgloss/libnosys/lseek.c libgloss/libnosys/open.c libgloss/libnosys/read.c libgloss/libnosys/sbrk.c libgloss/libnosys/stat.c libgloss/libnosys/times.c libgloss/libnosys/unlink.c libgloss/libnosys/wait.c libgloss/libnosys/warning.h libgloss/libnosys/write.c libgloss/lseek.c libgloss/m32r/Makefile.in libgloss/m32r/chmod.c libgloss/m32r/close.c libgloss/m32r/configure libgloss/m32r/configure.in libgloss/m32r/crt0.S libgloss/m32r/eit.h libgloss/m32r/eva-stub.ld libgloss/m32r/eva.ld libgloss/m32r/exit.c libgloss/m32r/fstat.c libgloss/m32r/getpid.c libgloss/m32r/isatty.c libgloss/m32r/kill.c libgloss/m32r/lseek.c libgloss/m32r/m32r-lib.c libgloss/m32r/mon.specs libgloss/m32r/open.c libgloss/m32r/raise.c libgloss/m32r/read.c libgloss/m32r/sbrk.c libgloss/m32r/stat.c libgloss/m32r/trap0.S libgloss/m32r/trapmon0.c libgloss/m32r/unlink.c libgloss/m32r/utime.c libgloss/m32r/write.c libgloss/m68k/Makefile.in libgloss/m68k/README libgloss/m68k/asm.h libgloss/m68k/bcc.ld libgloss/m68k/configure libgloss/m68k/configure.in libgloss/m68k/cpu32bug.S libgloss/m68k/cpu32bug.h libgloss/m68k/crt0.S libgloss/m68k/dbug-exit.S libgloss/m68k/dbug-inbyte.S libgloss/m68k/dbug-outbyte.S libgloss/m68k/dtor.C libgloss/m68k/idp-inbyte.c libgloss/m68k/idp-outbyte.c libgloss/m68k/idp.ld libgloss/m68k/leds.c libgloss/m68k/leds.h libgloss/m68k/mc68681reg.h libgloss/m68k/mc68ec.c libgloss/m68k/mvme-stub.c libgloss/m68k/mvme.S libgloss/m68k/mvme135-asm.S libgloss/m68k/mvme135.ld libgloss/m68k/mvme162.ld libgloss/m68k/mvme162lx-asm.S libgloss/m68k/sbc5204.ld libgloss/m68k/sbc5206.ld libgloss/m68k/test.c libgloss/mcore/Makefile.in libgloss/mcore/close.c libgloss/mcore/cmb-exit.c libgloss/mcore/cmb-inbyte.c libgloss/mcore/cmb-outbyte.c libgloss/mcore/configure libgloss/mcore/configure.in libgloss/mcore/crt0.S libgloss/mcore/elf-cmb.ld libgloss/mcore/elf-cmb.specs libgloss/mcore/fstat.c libgloss/mcore/getpid.c libgloss/mcore/kill.c libgloss/mcore/lseek.c libgloss/mcore/open.c libgloss/mcore/pe-cmb.ld libgloss/mcore/pe-cmb.specs libgloss/mcore/print.c libgloss/mcore/putnum.c libgloss/mcore/raise.c libgloss/mcore/read.c libgloss/mcore/sbrk.c libgloss/mcore/stat.c libgloss/mcore/syscalls.S libgloss/mcore/unlink.c libgloss/mcore/write.c libgloss/mips/Makefile.in libgloss/mips/array-io.c libgloss/mips/array.ld libgloss/mips/cma101.c libgloss/mips/configure libgloss/mips/configure.in libgloss/mips/crt0.S libgloss/mips/ddb.ld libgloss/mips/dtor.C libgloss/mips/dve.ld libgloss/mips/dvemon.c libgloss/mips/entry.S libgloss/mips/idt.ld libgloss/mips/idtecoff.ld libgloss/mips/idtmon.S libgloss/mips/jmr3904-io.c libgloss/mips/jmr3904app-java.ld libgloss/mips/jmr3904app.ld libgloss/mips/jmr3904dram-java.ld libgloss/mips/jmr3904dram.ld libgloss/mips/lsi.ld libgloss/mips/lsi33k-stub.c libgloss/mips/lsi33k-stub.h libgloss/mips/lsipmon.S libgloss/mips/nullmon.c libgloss/mips/nullmon.ld libgloss/mips/pmon.S libgloss/mips/pmon.ld libgloss/mips/regs.S libgloss/mips/syscalls.c libgloss/mips/test.c libgloss/mips/vr4300.S libgloss/mips/vr5xxx.S libgloss/mn10200/Makefile.in libgloss/mn10200/_exit.c libgloss/mn10200/access.c libgloss/mn10200/chmod.c libgloss/mn10200/chown.c libgloss/mn10200/close.c 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libgloss/mn10300/crt0-eval.S libgloss/mn10300/crt0.S libgloss/mn10300/crt1.c libgloss/mn10300/eval.ld libgloss/mn10300/execv.c libgloss/mn10300/execve.c libgloss/mn10300/fork.c libgloss/mn10300/fstat.c libgloss/mn10300/getpid.c libgloss/mn10300/gettime.c libgloss/mn10300/isatty.c libgloss/mn10300/kill.c libgloss/mn10300/lseek.c libgloss/mn10300/open.c libgloss/mn10300/pipe.c libgloss/mn10300/read.c libgloss/mn10300/sbrk.c libgloss/mn10300/sim.ld libgloss/mn10300/stat.c libgloss/mn10300/test.c libgloss/mn10300/time.c libgloss/mn10300/times.c libgloss/mn10300/trap.S libgloss/mn10300/trap.h libgloss/mn10300/unlink.c libgloss/mn10300/utime.c libgloss/mn10300/wait.c libgloss/mn10300/write.c libgloss/open.c libgloss/pa/Makefile.in libgloss/pa/README libgloss/pa/configure libgloss/pa/configure.in libgloss/pa/crt0.S libgloss/pa/hp-milli.s libgloss/pa/op50n-io.S libgloss/pa/op50n.h libgloss/pa/op50n.ld libgloss/pa/op50nled.c libgloss/pa/setjmp.S libgloss/pa/test.c libgloss/pa/w89k-io.c libgloss/pa/w89k.h libgloss/pa/w89k.ld libgloss/print.c libgloss/putnum.c libgloss/read.c libgloss/rs6000/Makefile.in libgloss/rs6000/ads-exit.S libgloss/rs6000/ads-io.c libgloss/rs6000/ads.ld libgloss/rs6000/configure libgloss/rs6000/configure.in libgloss/rs6000/crt0.S libgloss/rs6000/mbx-exit.c libgloss/rs6000/mbx-inbyte.c libgloss/rs6000/mbx-outbyte.c libgloss/rs6000/mbx-print.c libgloss/rs6000/mbx.ld libgloss/rs6000/mbx.specs libgloss/rs6000/mcount.S libgloss/rs6000/mvme-errno.c libgloss/rs6000/mvme-exit.S libgloss/rs6000/mvme-inbyte.S libgloss/rs6000/mvme-outbyte.S libgloss/rs6000/mvme-print.c libgloss/rs6000/mvme-read.c libgloss/rs6000/sim-abort.c libgloss/rs6000/sim-crt0.S libgloss/rs6000/sim-errno.c libgloss/rs6000/sim-inbyte.c libgloss/rs6000/sim-print.c libgloss/rs6000/sim-sbrk.c libgloss/rs6000/simulator.S libgloss/rs6000/sol-cfuncs.c libgloss/rs6000/sol-syscall.S libgloss/rs6000/test.c libgloss/rs6000/yellowknife.ld libgloss/sbrk.c libgloss/sh/sh1lcevb.ld 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libgloss/sparc/libsys/template_r.S libgloss/sparc/salib-701.c libgloss/sparc/salib.c libgloss/sparc/slite.h libgloss/sparc/sparc-stub.c libgloss/sparc/sparc86x.ld libgloss/sparc/sparcl-stub.c libgloss/sparc/sparclet-stub.c libgloss/sparc/sparclite.h libgloss/sparc/sysc-701.c libgloss/sparc/syscalls.c libgloss/sparc/test.c libgloss/sparc/traps.S libgloss/sparc/tsc701.ld libgloss/stat.c libgloss/syscall.h libgloss/testsuite/Makefile.in libgloss/testsuite/config/hppa.mt libgloss/testsuite/config/m68k.mt libgloss/testsuite/config/mips.mt libgloss/testsuite/config/support.c libgloss/testsuite/configure.in libgloss/testsuite/lib/libgloss.exp libgloss/testsuite/libgloss.all/.gdbinit libgloss/testsuite/libgloss.all/Makefile.in libgloss/testsuite/libgloss.all/array.c libgloss/testsuite/libgloss.all/configure.in libgloss/testsuite/libgloss.all/div.c libgloss/testsuite/libgloss.all/double.c libgloss/testsuite/libgloss.all/float.c libgloss/testsuite/libgloss.all/func.c 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winsup/w32api/lib/wsock32.def winsup/w32api/lib/wst.def ylwrap
Diffstat (limited to 'winsup/cygwin/path.cc')
-rw-r--r--winsup/cygwin/path.cc3003
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diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
deleted file mode 100644
index 48da8c4..0000000
--- a/winsup/cygwin/path.cc
+++ /dev/null
@@ -1,3003 +0,0 @@
-/* path.cc: path support.
-
- Copyright 1996, 1997, 1998, 1999, 2000 Cygnus Solutions.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license. Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-/* This module's job is to
- - convert between POSIX and Win32 style filenames,
- - support the `mount' functionality,
- - support symlinks for files and directories
-
- Pathnames are handled as follows:
-
- - / is equivalent to \
- - Paths beginning with // (or \\) are not translated (i.e. looked
- up in the mount table) and are assumed to be UNC path names.
- - Paths containing a : are not translated (paths like
- /foo/bar/baz:qux: don't make much sense but having the rule written
- this way allows one to use strchr).
-
- The goal in the above set of rules is to allow both POSIX and Win32
- flavors of pathnames without either interfering. The rules are
- intended to be as close to a superset of both as possible.
-
- A possible future enhancement would be to allow people to
- disable/enable the mount table handling to support pure Win32
- pathnames. Hopefully this won't be needed. The suggested way to
- do this would be an environment variable because
- a) we need something that is inherited from parent to child,
- b) environment variables can be passed from the DOS shell to a
- cygwin app,
- c) it allows disabling the feature on an app by app basis within
- the same session (whereas playing about with the registry wouldn't
- -- without getting too complicated). Example:
- CYGWIN=pathrules[=@]{win32,posix}. If CYGWIN=pathrules=win32,
- mount table handling is disabled. [The intent is to have CYGWIN be
- a catchall for tweaking various cygwin.dll features].
-
- Note that you can have more than one path to a file. The mount
- table is always prefered when translating Win32 paths to POSIX
- paths. Win32 paths in mount table entries may be UNC paths or
- standard Win32 paths starting with <drive-letter>:
-
- Text vs Binary issues are not considered here in path style
- decisions.
-
- / and \ are treated as equivalent. One or the other is prefered in
- certain situations (e.g. / is preferred in result of getcwd, \ is
- preferred in arguments to Win32 api calls), but this code will
- translate as necessary.
-
- Apps wishing to translate to/from pure Win32 and POSIX-like
- pathnames can use cygwin_foo.
-
- Removing mounted filesystem support would simplify things greatly,
- but having it gives us a mechanism of treating disk that lives on a
- UNIX machine as having UNIX semantics [it allows one to edit a text
- file on that disk and not have cr's magically appear and perhaps
- break apps running on UNIX boxes]. It also useful to be able to
- layout a hierarchy without changing the underlying directories.
-
- The semantics of mounting file systems is not intended to precisely
- follow normal UNIX systems.
-
- Each DOS drive is defined to have a current directory. Supporting
- this would complicate things so for now things are defined so that
- c: means c:\.
-*/
-
-#include "winsup.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mount.h>
-#include <mntent.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <ctype.h>
-#include <winioctl.h>
-#include "cygerrno.h"
-#include "fhandler.h"
-#include "path.h"
-#include "thread.h"
-#include "sync.h"
-#include "sigproc.h"
-#include "pinfo.h"
-
-static int normalize_win32_path (const char *cwd, const char *src, char *dst);
-static char *getcwd_inner (char *buf, size_t ulen, int posix_p, int with_chroot);
-static void slashify (const char *src, char *dst, int trailing_slash_p);
-static void backslashify (const char *src, char *dst, int trailing_slash_p);
-static int path_prefix_p_ (const char *path1, const char *path2, int len1);
-static int get_cwd_win32 ();
-
-static NO_COPY const char escape_char = '^';
-
-struct symlink_info
-{
- char buf[3 + MAX_PATH * 3];
- char *known_suffix;
- char *ext_here;
- char *contents;
- unsigned pflags;
- DWORD fileattr;
- int is_symlink;
- int error;
- symlink_info (): known_suffix (NULL), contents (buf + MAX_PATH + 1) {}
- int check (const char *path, const suffix_info *suffixes);
-};
-
-/********************** Path Helper Functions *************************/
-
-#define path_prefix_p(p1, p2, l1) \
- ((tolower(*(p1))==tolower(*(p2))) && \
- path_prefix_p_(p1, p2, l1))
-
-#define SYMLINKATTR(x) \
- (((x) & (FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_DIRECTORY)) == \
- FILE_ATTRIBUTE_SYSTEM)
-
-/* Return non-zero if PATH1 is a prefix of PATH2.
- Both are assumed to be of the same path style and / vs \ usage.
- Neither may be "".
- LEN1 = strlen (PATH1). It's passed because often it's already known.
-
- Examples:
- /foo/ is a prefix of /foo <-- may seem odd, but desired
- /foo is a prefix of /foo/
- / is a prefix of /foo/bar
- / is not a prefix of foo/bar
- foo/ is a prefix foo/bar
- /foo is not a prefix of /foobar
-*/
-
-/* Determine if path prefix matches current cygdrive */
-#define iscygdrive(path) \
- (path_prefix_p (cygwin_shared->mount.cygdrive, (path), cygwin_shared->mount.cygdrive_len))
-
-#define iscygdrive_device(path) \
- (iscygdrive(path) && isalpha(path[cygwin_shared->mount.cygdrive_len]) && \
- (isdirsep(path[cygwin_shared->mount.cygdrive_len + 1]) || \
- !path[cygwin_shared->mount.cygdrive_len + 1]))
-
-/******************** Directory-related Support **************************/
-
-/* Cache getcwd value. FIXME: We need a lock for these in order to
- support multiple threads. */
-
-#ifdef _MT_SAFE
-#define cwd_win32 _reent_winsup()->_cwd_win32
-#define cwd_posix _reent_winsup()->_cwd_posix
-#define cwd_hash _reent_winsup()->_cwd_hash
-#else
-static char *cwd_win32;
-static char *cwd_posix;
-static unsigned long cwd_hash;
-#endif
-
-#define ischrootpath(path) \
- (myself->rootlen && \
- strncasematch (myself->root, path, myself->rootlen) && \
- (path[myself->rootlen] == '/' || path[myself->rootlen] == '\0'))
-
-static int
-path_prefix_p_ (const char *path1, const char *path2, int len1)
-{
- /* Handle case where PATH1 has trailing '/' and when it doesn't. */
- if (len1 > 0 && SLASH_P (path1[len1 - 1]))
- len1--;
-
- if (len1 == 0)
- return SLASH_P (path2[0]) && !SLASH_P (path2[1]);
-
- if (!strncasematch (path1, path2, len1))
- return 0;
-
- return SLASH_P (path2[len1]) || path2[len1] == 0 || path1[len1 - 1] == ':';
-}
-
-/* Convert an arbitrary path SRC to a pure Win32 path, suitable for
- passing to Win32 API routines.
-
- If an error occurs, `error' is set to the errno value.
- Otherwise it is set to 0.
-
- follow_mode values:
- SYMLINK_FOLLOW - convert to PATH symlink points to
- SYMLINK_NOFOLLOW - convert to PATH of symlink itself
- SYMLINK_IGNORE - do not check PATH for symlinks
- SYMLINK_CONTENTS - just return symlink contents
-*/
-
-void
-path_conv::check (const char *src, unsigned opt,
- const suffix_info *suffixes)
-{
- /* This array is used when expanding symlinks. It is MAX_PATH * 2
- in length so that we can hold the expanded symlink plus a
- trailer. */
- char path_buf[MAX_PATH];
- char path_copy[MAX_PATH];
- char tmp_buf[MAX_PATH];
- symlink_info sym;
-
- char *rel_path, *full_path;
-
- if (!(opt & PC_NULLEMPTY))
- error = 0;
- else if ((error = check_null_empty_path (src)))
- return;
-
- if (opt & PC_FULL)
- rel_path = path_buf, full_path = this->path;
- else
- rel_path = this->path, full_path = path_buf;
-
- /* This loop handles symlink expansion. */
- int loop = 0;
- path_flags = 0;
- known_suffix = NULL;
- fileattr = (DWORD) -1;
- for (;;)
- {
- MALLOC_CHECK;
- /* Must look up path in mount table, etc. */
- error = cygwin_shared->mount.conv_to_win32_path (src, rel_path,
- full_path,
- devn, unit, &path_flags);
- MALLOC_CHECK;
- if (error)
- return;
- if (devn != FH_BAD)
- {
- fileattr = 0;
- return;
- }
-
- /* Eat trailing slashes */
- char *tail = strchr (full_path, '\0');
- /* If path is only a drivename, Windows interprets it as
- the current working directory on this drive instead of
- the root dir which is what we want. So we need
- the trailing backslash in this case. */
- while (tail > full_path + 3 && (*--tail == '\\'))
- *tail = '\0';
- if (full_path[0] && full_path[1] == ':' && full_path[2] == '\0')
- strcat (full_path, "\\");
-
- if (opt & PC_SYM_IGNORE)
- {
- fileattr = GetFileAttributesA (path);
- goto out;
- }
-
- /* Make a copy of the path that we can munge up */
- strcpy (path_copy, full_path);
-
- tail = path_copy + 1 + (tail - full_path); // Point to end of copy
-
- /* Scan path_copy from right to left looking either for a symlink
- or an actual existing file. If an existing file is found, just
- return. If a symlink is found exit the for loop.
- Also: be careful to preserve the errno returned from
- symlink.check as the caller may need it. */
- /* FIXME: Do we have to worry about multiple \'s here? */
- int component = 0; // Number of translated components
- sym.contents[0] = '\0';
-
- for (;;)
- {
- const suffix_info *suff;
-
- /* Don't allow symlink.check to set anything in the path_conv
- class if we're working on an inner component of the path */
- if (component)
- {
- suff = NULL;
- sym.pflags = 0;
- }
- else
- {
- suff = suffixes;
- sym.pflags = path_flags;
- }
-
- int len = sym.check (path_copy, suff);
-
- if (!component)
- path_flags = sym.pflags;
-
- /* If symlink.check found an existing non-symlink file, then
- it sets the appropriate flag. It also sets any suffix found
- into `ext_here'. */
- if (!sym.is_symlink && sym.fileattr != (DWORD) -1)
- {
- error = sym.error;
- if (component == 0)
- {
- fileattr = sym.fileattr;
- goto fillin;
- }
- goto out; // file found
- }
- /* Found a symlink if len > 0. If component == 0, then the
- src path itself was a symlink. If !follow_mode then
- we're done. Otherwise we have to insert the path found
- into the full path that we are building and perform all of
- these operations again on the newly derived path. */
- else if (len > 0)
- {
- if (component == 0 && !(opt & PC_SYM_FOLLOW))
- {
- set_symlink (); // last component of path is a symlink.
- fileattr = sym.fileattr;
- if (opt & PC_SYM_CONTENTS)
- strcpy (path, sym.contents);
- goto fillin;
- }
- break;
- }
-
- /* No existing file found. */
-
- if (!(tail = strrchr (path_copy, '\\')) ||
- (tail > path_copy && tail[-1] == ':'))
- goto out; // all done
-
- /* Haven't found a valid pathname component yet.
- Pinch off the tail and try again. */
- *tail = '\0';
- component++;
- }
-
- /* Arrive here if above loop detected a symlink. */
- if (++loop > MAX_LINK_DEPTH)
- {
- error = ELOOP; // Eep.
- return;
- }
- MALLOC_CHECK;
-
- tail = full_path + (tail - path_copy);
- int taillen = strlen (tail);
- int buflen = strlen (sym.contents);
- if (buflen + taillen > MAX_PATH)
- {
- error = ENAMETOOLONG;
- strcpy (path, "::ENAMETOOLONG::");
- return;
- }
-
- /* Copy tail of full_path to discovered symlink. */
- char *p;
- for (p = sym.contents + buflen; *tail; tail++)
- *p++ = *tail == '\\' ? '/' : *tail;
- *p = '\0';
-
- /* If symlink referred to an absolute path, then we
- just use sym.contents and loop. Otherwise tack the head of
- path_copy before sym.contents and translate it back from a
- Win32-style path to a POSIX-style one. */
- if (isabspath (sym.contents))
- src = sym.contents;
- else if (!(tail = strrchr (path_copy, '\\')))
- system_printf ("problem parsing %s - '%s'", src, full_path);
- else
- {
- int headlen = 1 + tail - path_copy;
- p = sym.contents - headlen;
- memcpy (p, path_copy, headlen);
- MALLOC_CHECK;
- error = cygwin_shared->mount.conv_to_posix_path (p, tmp_buf, 1);
- MALLOC_CHECK;
- if (error)
- return;
- src = tmp_buf;
- }
- }
-
-fillin:
- if (sym.known_suffix)
- known_suffix = this->path + (sym.known_suffix - path_copy);
- else if (sym.ext_here && !(opt & PC_SYM_CONTENTS))
- {
- known_suffix = strchr (this->path, '\0');
- strcpy (known_suffix, sym.ext_here);
- }
-
-out:
- DWORD serial, volflags;
-
- strcpy (tmp_buf, full_path);
- if (!rootdir (tmp_buf) ||
- !GetVolumeInformation (tmp_buf, NULL, 0, &serial, NULL, &volflags, NULL, 0))
- {
- debug_printf ("GetVolumeInformation(%s) = ERR, full_path(%s), set_has_acls(FALSE)",
- tmp_buf, full_path, GetLastError ());
- set_has_acls (FALSE);
- }
- else
- {
- debug_printf ("GetVolumeInformation(%s) = OK, full_path(%s), set_has_acls(%d)",
- tmp_buf, full_path, volflags & FS_PERSISTENT_ACLS);
- set_has_acls (volflags & FS_PERSISTENT_ACLS);
- }
-}
-
-#define deveq(s) (strcasematch (name, (s)))
-#define deveqn(s, n) (strncasematch (name, (s), (n)))
-
-static __inline int
-digits (const char *name)
-{
- char *p;
- int n = strtol(name, &p, 10);
-
- return p > name && !*p ? n : -1;
-}
-
-const char *windows_device_names[] =
-{
- NULL,
- "\\dev\\console",
- "conin",
- "conout",
- "\\dev\\ttym",
- "\\dev\\tty%d",
- "\\dev\\ptym",
- "\\\\.\\com%d",
- "\\dev\\pipe",
- "\\dev\\piper",
- "\\dev\\pipew",
- "\\dev\\socket",
- "\\dev\\windows",
-
- NULL, NULL, NULL,
-
- "\\dev\\disk",
- "\\dev\\fd%d",
- "\\dev\\st%d",
- "nul",
- "\\dev\\zero",
- "\\dev\\%srandom",
-};
-
-static int
-get_raw_device_number (const char *uxname, const char *w32path, int &unit)
-{
- DWORD devn = FH_BAD;
-
- if (strncasematch (w32path, "\\\\.\\tape", 8))
- {
- devn = FH_TAPE;
- unit = digits (w32path + 8);
- // norewind tape devices have leading n in name
- if (strncasematch (uxname, "/dev/n", 6))
- unit += 128;
- }
- else if (isdrive (w32path + 4))
- {
- devn = FH_FLOPPY;
- unit = tolower (w32path[4]) - 'a';
- }
- else if (strncasematch (w32path, "\\\\.\\physicaldrive", 17))
- {
- devn = FH_FLOPPY;
- unit = digits (w32path + 17) + 128;
- }
- return devn;
-}
-
-int __stdcall
-get_device_number (const char *name, int &unit, BOOL from_conv)
-{
- DWORD devn = FH_BAD;
- unit = 0;
-
- if ((*name == '/' && deveqn ("/dev/", 5)) ||
- (*name == '\\' && deveqn ("\\dev\\", 5)))
- {
- name += 5;
- if (deveq ("tty"))
- {
- if (tty_attached (myself))
- {
- unit = myself->ctty;
- devn = FH_TTYS;
- }
- else if (myself->ctty > 0)
- devn = FH_CONSOLE;
- }
- else if (deveqn ("tty", 3) && (unit = digits (name + 3)) >= 0)
- devn = FH_TTYS;
- else if (deveq ("ttym"))
- devn = FH_TTYM;
- else if (deveq ("ptmx"))
- devn = FH_PTYM;
- else if (deveq ("windows"))
- devn = FH_WINDOWS;
- else if (deveq ("conin"))
- devn = FH_CONIN;
- else if (deveq ("conout"))
- devn = FH_CONOUT;
- else if (deveq ("null"))
- devn = FH_NULL;
- else if (deveq ("zero"))
- devn = FH_ZERO;
- else if (deveq ("random") || deveq ("urandom"))
- {
- devn = FH_RANDOM;
- unit = 8 + (deveqn ("u", 1) ? 1 : 0); /* Keep unit Linux conformant */
- }
- else if (deveqn ("com", 3) && (unit = digits (name + 3)) >= 0)
- devn = FH_SERIAL;
- else if (deveq ("pipe") || deveq ("piper") || deveq ("pipew"))
- devn = FH_PIPE;
- else if (deveq ("tcp") || deveq ("udp") || deveq ("streamsocket")
- || deveq ("dgsocket"))
- devn = FH_SOCKET;
- else if (! from_conv)
- devn = get_raw_device_number (name - 5,
- path_conv (name - 5,
- PC_SYM_IGNORE).get_win32 (),
- unit);
- }
- else if (deveqn ("com", 3) && (unit = digits (name + 3)) >= 0)
- devn = FH_SERIAL;
-
- return devn;
-}
-
-/* Return TRUE if src_path is a Win32 device name, filling out the device
- name in win32_path */
-
-static BOOL
-win32_device_name (const char *src_path, char *win32_path,
- DWORD &devn, int &unit)
-{
- const char *devfmt;
-
- devn = get_device_number (src_path, unit, TRUE);
-
- if (devn == FH_BAD)
- return FALSE;
-
- if ((devfmt = windows_device_names[FHDEVN (devn)]) == NULL)
- return FALSE;
- if (devn == FH_RANDOM)
- __small_sprintf (win32_path, devfmt, unit == 8 ? "" : "u");
- else
- __small_sprintf (win32_path, devfmt, unit);
- return TRUE;
-}
-
-/* Normalize a POSIX path.
- \'s are converted to /'s in the process.
- All duplicate /'s, except for 2 leading /'s, are deleted.
- The result is 0 for success, or an errno error value. */
-
-#define isslash(c) ((c) == '/')
-
-static int
-normalize_posix_path (const char *cwd, const char *src, char *dst)
-{
- const char *src_start = src;
- char *dst_start = dst;
-
- syscall_printf ("cwd %s, src %s", cwd, src);
- if (isdrive (src) || strpbrk (src, "\\:"))
- {
- cygwin_conv_to_full_posix_path (src, dst);
- return 0;
- }
- if (!isslash (src[0]))
- {
- if (strlen (cwd) + 1 + strlen (src) >= MAX_PATH)
- {
- debug_printf ("ENAMETOOLONG = normalize_posix_path (%s)", src);
- return ENAMETOOLONG;
- }
- strcpy (dst, cwd);
- dst = strchr (dst, '\0');
- if (*src == '.')
- {
- if (dst == dst_start + 1)
- dst--;
- goto sawdot;
- }
- if (dst > dst_start && !isslash (dst[-1]))
- *dst++ = '/';
- }
- /* Two leading /'s? If so, preserve them. */
- else if (isslash (src[1]))
- {
- if (myself->rootlen)
- {
- debug_printf ("ENOENT = normalize_posix_path (%s)", src);
- return ENOENT;
- }
- *dst++ = '/';
- *dst++ = '/';
- src += 2;
- if (isslash (*src))
- { /* Starts with three or more slashes - reset. */
- dst = dst_start;
- *dst++ = '/';
- src = src_start + 1;
- }
- }
- /* Exactly one leading slash. Absolute path. Check for chroot. */
- else if (myself->rootlen)
- {
- strcpy (dst, myself->root);
- dst += myself->rootlen;
- }
-
- while (*src)
- {
- /* Strip runs of /'s. */
- if (!isslash (*src))
- *dst++ = *src++;
- else
- {
- while (*++src)
- {
- while (isslash (*src))
- src++;
-
- if (*src != '.')
- break;
-
- sawdot:
- if (src[1] != '.')
- {
- if (!src[1] || !isslash (src[1]))
- break;
- }
- else
- {
- if (src[2] && !isslash (src[2]))
- break;
- if (!ischrootpath (dst_start) ||
- dst - dst_start != (int) myself->rootlen)
- while (dst > dst_start && !isslash (*--dst))
- continue;
- src++;
- }
- }
-
- *dst++ = '/';
- }
- }
-
- *dst = '\0';
- if (--dst > dst_start && isslash (*dst))
- *dst = '\0';
-
- debug_printf ("%s = normalize_posix_path (%s)", dst_start, src_start);
- return 0;
-}
-
-/* Normalize a Win32 path.
- /'s are converted to \'s in the process.
- All duplicate \'s, except for 2 leading \'s, are deleted.
-
- The result is 0 for success, or an errno error value.
- FIXME: A lot of this should be mergeable with the POSIX critter. */
-static int
-normalize_win32_path (const char *cwd, const char *src, char *dst)
-{
- const char *src_start = src;
- char *dst_start = dst;
- char *dst_root_start = dst;
-
- if (!SLASH_P (src[0]) && strchr (src, ':') == NULL)
- {
- if (strlen (cwd) + 1 + strlen (src) >= MAX_PATH)
- {
- debug_printf ("ENAMETOOLONG = normalize_win32_path (%s)", src);
- return ENAMETOOLONG;
- }
- strcpy (dst, cwd);
- dst += strlen (dst);
- if (!*cwd || !SLASH_P (dst[-1]))
- *dst++ = '\\';
- }
- /* Two leading \'s? If so, preserve them. */
- else if (SLASH_P (src[0]) && SLASH_P (src[1]))
- {
- if (myself->rootlen)
- {
- debug_printf ("ENOENT = normalize_win32_path (%s)", src);
- return ENOENT;
- }
- *dst++ = '\\';
- ++src;
- }
- /* If absolute path, care for chroot. */
- else if (SLASH_P (src[0]) && !SLASH_P (src[1]) && myself->rootlen)
- {
- strcpy (dst, myself->root);
- char *c;
- while ((c = strchr (dst, '/')) != NULL)
- *c = '\\';
- dst += myself->rootlen;
- dst_root_start = dst;
- *dst++ = '\\';
- }
-
- while (*src)
- {
- /* Strip duplicate /'s. */
- if (SLASH_P (src[0]) && SLASH_P (src[1]))
- src++;
- /* Ignore "./". */
- else if (src[0] == '.' && SLASH_P (src[1])
- && (src == src_start || SLASH_P (src[-1])))
- {
- src += 2;
- }
-
- /* Backup if "..". */
- else if (src[0] == '.' && src[1] == '.'
- /* dst must be greater than dst_start */
- && dst[-1] == '\\'
- && (SLASH_P (src[2]) || src[2] == 0))
- {
- /* Back up over /, but not if it's the first one. */
- if (dst > dst_root_start + 1)
- dst--;
- /* Now back up to the next /. */
- while (dst > dst_root_start + 1 && dst[-1] != '\\' && dst[-2] != ':')
- dst--;
- src += 2;
- if (SLASH_P (*src))
- src++;
- }
- /* Otherwise, add char to result. */
- else
- {
- if (*src == '/')
- *dst++ = '\\';
- else
- *dst++ = *src;
- ++src;
- }
- }
- *dst = 0;
- debug_printf ("%s = normalize_win32_path (%s)", dst_start, src_start);
- return 0;
-}
-
-
-/* Various utilities. */
-
-/* slashify: Convert all back slashes in src path to forward slashes
- in dst path. Add a trailing slash to dst when trailing_slash_p arg
- is set to 1. */
-
-static void
-slashify (const char *src, char *dst, int trailing_slash_p)
-{
- const char *start = src;
-
- while (*src)
- {
- if (*src == '\\')
- *dst++ = '/';
- else
- *dst++ = *src;
- ++src;
- }
- if (trailing_slash_p
- && src > start
- && !isdirsep (src[-1]))
- *dst++ = '/';
- *dst++ = 0;
-}
-
-/* backslashify: Convert all forward slashes in src path to back slashes
- in dst path. Add a trailing slash to dst when trailing_slash_p arg
- is set to 1. */
-
-static void
-backslashify (const char *src, char *dst, int trailing_slash_p)
-{
- const char *start = src;
-
- while (*src)
- {
- if (*src == '/')
- *dst++ = '\\';
- else
- *dst++ = *src;
- ++src;
- }
- if (trailing_slash_p
- && src > start
- && !isdirsep (src[-1]))
- *dst++ = '\\';
- *dst++ = 0;
-}
-
-/* nofinalslash: Remove trailing / and \ from SRC (except for the
- first one). It is ok for src == dst. */
-
-void __stdcall
-nofinalslash (const char *src, char *dst)
-{
- int len = strlen (src);
- if (src != dst)
- memcpy (dst, src, len + 1);
- while (len > 1 && SLASH_P (dst[--len]))
- dst[len] = '\0';
-}
-
-/* slash_drive_prefix_p: Return non-zero if PATH begins with
- //<letter>. */
-
-static int
-slash_drive_prefix_p (const char *path)
-{
- return (isdirsep(path[0])
- && isdirsep(path[1])
- && isalpha (path[2])
- && (path[3] == 0 || path[3] == '/'));
-}
-
-/* slash_unc_prefix_p: Return non-zero if PATH begins with //UNC/SHARE */
-
-int __stdcall
-slash_unc_prefix_p (const char *path)
-{
- char *p = NULL;
- int ret = (isdirsep (path[0])
- && isdirsep (path[1])
- && isalpha (path[2])
- && path[3] != 0
- && !isdirsep (path[3])
- && ((p = strchr(&path[3], '/')) != NULL));
- if (!ret || p == NULL)
- return ret;
- return ret && isalnum (p[1]);
-}
-
-/* conv_path_list: Convert a list of path names to/from Win32/POSIX.
-
- SRC is not a const char * because we temporarily modify it to ease
- the implementation.
-
- I believe Win32 always has '.' in $PATH. POSIX obviously doesn't.
- We certainly don't want to handle that here, but it is something for
- the caller to think about. */
-
-static void
-conv_path_list (const char *src, char *dst, int to_posix_p)
-{
- char *s;
- char *d = dst;
- char src_delim = to_posix_p ? ';' : ':';
- char dst_delim = to_posix_p ? ':' : ';';
- int (*conv_fn) (const char *, char *) = (to_posix_p
- ? cygwin_conv_to_posix_path
- : cygwin_conv_to_win32_path);
-
- do
- {
- s = strchr (src, src_delim);
- if (s)
- {
- *s = 0;
- (*conv_fn) (src[0] != 0 ? src : ".", d);
- d += strlen (d);
- *d++ = dst_delim;
- *s = src_delim;
- src = s + 1;
- }
- else
- {
- /* Last one. */
- (*conv_fn) (src[0] != 0 ? src : ".", d);
- }
- }
- while (s != NULL);
-}
-
-/************************* mount_info class ****************************/
-
-/* init: Initialize the mount table. */
-
-void
-mount_info::init ()
-{
- nmounts = 0;
- had_to_create_mount_areas = 0;
-
- /* Fetch the mount table and cygdrive-related information from
- the registry. */
- from_registry ();
-}
-
-/* conv_to_win32_path: Ensure src_path is a pure Win32 path and store
- the result in win32_path.
-
- If win32_path != NULL, the relative path, if possible to keep, is
- stored in win32_path. If the relative path isn't possible to keep,
- the full path is stored.
-
- If full_win32_path != NULL, the full path is stored there.
-
- The result is zero for success, or an errno value.
-
- {,full_}win32_path must have sufficient space (i.e. MAX_PATH bytes). */
-
-int
-mount_info::conv_to_win32_path (const char *src_path, char *win32_path,
- char *full_win32_path, DWORD &devn, int &unit,
- unsigned *flags)
-{
- int src_path_len = strlen (src_path);
- int trailing_slash_p = (src_path_len > 1
- && SLASH_P (src_path[src_path_len - 1]));
- MALLOC_CHECK;
- int isrelpath;
- unsigned dummy_flags;
-
- devn = FH_BAD;
- unit = 0;
-
- if (!flags)
- flags = &dummy_flags;
-
- *flags = 0;
- debug_printf ("conv_to_win32_path (%s)", src_path);
-
- if (src_path_len >= MAX_PATH)
- {
- debug_printf ("ENAMETOOLONG = conv_to_win32_path (%s)", src_path);
- return ENAMETOOLONG;
- }
-
- int i, rc;
- char *dst = NULL;
- mount_item *mi = NULL; /* initialized to avoid compiler warning */
- char pathbuf[MAX_PATH];
-
- char cwd[MAX_PATH];
- getcwd_inner (cwd, MAX_PATH, TRUE, 0); /* FIXME: check rc */
-
- /* Determine where the destination should be placed. */
- if (full_win32_path != NULL)
- dst = full_win32_path;
- else if (win32_path != NULL)
- dst = win32_path;
-
- if (dst == NULL)
- goto out; /* Sanity check. */
-
- /* An MS-DOS spec has either a : or a \. If this is found, short
- circuit most of the rest of this function. */
- if (strpbrk (src_path, ":\\") != NULL)
- {
- debug_printf ("%s already win32", src_path);
- rc = normalize_win32_path (cwd_win32, src_path, dst);
- if (rc)
- {
- debug_printf ("normalize_win32_path failed, rc %d", rc);
- return rc;
- }
- isrelpath = !isabspath (src_path);
- *flags = set_flags_from_win32_path (dst);
- if (myself->rootlen && dst[0] && dst[1] == ':')
- {
- char posix_path[MAX_PATH + 1];
-
- rc = cygwin_shared->mount.conv_to_posix_path (dst, posix_path, 0);
- if (rc)
- {
- debug_printf ("conv_to_posix_path failed, rc %d", rc);
- return rc;
- }
- if (!ischrootpath (posix_path))
- {
- debug_printf ("ischrootpath failed");
- return ENOENT;
- }
- }
- goto fillin;
- }
-
- /* Normalize the path, taking out ../../ stuff, we need to do this
- so that we can move from one mounted directory to another with relative
- stuff.
-
- eg mounting c:/foo /foo
- d:/bar /bar
-
- cd /bar
- ls ../foo
-
- should look in c:/foo, not d:/foo.
-
- We do this by first getting an absolute UNIX-style path and then
- converting it to a DOS-style path, looking up the appropriate drive
- in the mount table. */
-
- /* No need to fetch cwd if path is absolute. */
- isrelpath = !isslash (*src_path);
-
- rc = normalize_posix_path (cwd, src_path, pathbuf);
-
- if (rc)
- {
- debug_printf ("%d = conv_to_win32_path (%s)", rc, src_path);
- *flags = 0;
- return rc;
- }
-
- /* See if this is a cygwin "device" */
- if (win32_device_name (pathbuf, dst, devn, unit))
- {
- *flags = MOUNT_BINARY; /* FIXME: Is this a sensible default for devices? */
- goto fillin;
- }
-
- /* Check if the cygdrive prefix was specified. If so, just strip
- off the prefix and transform it into an MS-DOS path. */
- MALLOC_CHECK;
- if (iscygdrive_device (pathbuf))
- {
- if (!cygdrive_win32_path (pathbuf, dst, trailing_slash_p))
- return ENOENT;
- *flags = cygdrive_flags;
- goto fillin;
- }
-
- /* Check the mount table for prefix matches. */
- for (i = 0; i < nmounts; i++)
- {
- mi = mount + posix_sorted[i];
- if (path_prefix_p (mi->posix_path, pathbuf, mi->posix_pathlen))
- break;
- }
-
- if (i >= nmounts)
- {
- if (slash_drive_prefix_p (pathbuf))
- slash_drive_to_win32_path (pathbuf, dst, trailing_slash_p);
- else
- backslashify (pathbuf, dst, trailing_slash_p); /* just convert */
- *flags = 0;
- }
- else
- {
- int n = mi->native_pathlen;
- memcpy (dst, mi->native_path, n + 1);
- char *p = pathbuf + mi->posix_pathlen;
- if (!trailing_slash_p && !*p)
- {
- if (isdrive (dst) && !dst[2])
- dst[n++] = '\\';
- dst[n] = '\0';
- }
- else
- {
- /* Do not add trailing \ to UNC device names like \\.\a: */
- if (*p != '/' && /* FIXME: this test seems wrong. */
- (strncmp (mi->native_path, "\\\\.\\", 4) != 0 ||
- strncmp (mi->native_path + 4, "UNC\\", 4) == 0))
- dst[n++] = '\\';
- strcpy (dst + n, p);
- }
- backslashify (dst, dst, trailing_slash_p);
- *flags = mi->flags;
- }
-
-fillin:
- /* Compute relative path if asked to and able to. */
- unsigned cwdlen;
- cwdlen = 0; /* avoid a (hopefully) bogus compiler warning */
- if (win32_path == NULL)
- /* nothing to do */;
- else if (isrelpath &&
- path_prefix_p (cwd_win32, dst, cwdlen = strlen (cwd_win32)))
- {
- size_t n = strlen (dst);
- if (n < cwdlen)
- strcpy (win32_path, dst);
- else
- {
- if (n == cwdlen)
- dst += cwdlen;
- else
- dst += isdirsep (cwd_win32[cwdlen - 1]) ? cwdlen : cwdlen + 1;
-
- memmove (win32_path, dst, strlen (dst) + 1);
- if (!*win32_path)
- {
- strcpy (win32_path, ".");
- if (trailing_slash_p)
- strcat (win32_path, "\\");
- }
- }
- }
- else if (win32_path != dst)
- strcpy (win32_path, dst);
-
-out:
- MALLOC_CHECK;
- debug_printf ("%s(rel), %s(abs) %p(flags) = conv_to_win32_path (%s)",
- win32_path, full_win32_path, *flags,
- src_path);
- return 0;
-}
-
-/* Convert PATH (for which slash_drive_prefix_p returns 1) to WIN32 form. */
-
-void
-mount_info::slash_drive_to_win32_path (const char *path, char *buf,
- int trailing_slash_p)
-{
- buf[0] = path[2];
- buf[1] = ':';
- if (path[3] == '0')
- strcpy (buf + 2, "\\");
- else
- backslashify (path + 3, buf + 2, trailing_slash_p);
-}
-
-/* cygdrive_posix_path: Build POSIX path used as the
- mount point for cygdrives created when there is no other way to
- obtain a POSIX path from a Win32 one. */
-
-void
-mount_info::cygdrive_posix_path (const char *src, char *dst, int trailing_slash_p)
-{
- int len = cygdrive_len;
-
- memcpy (dst, cygdrive, len + 1);
-
- /* Now finish the path off with the drive letter to be used.
- The cygdrive prefix always ends with a trailing slash so
- the drive letter is added after the path. */
- dst[len++] = tolower (src[0]);
- if (!src[2] || (SLASH_P (src[2]) && !src[3]))
- dst[len++] = '\000';
- else
- {
- dst[len++] = '/';
- strcpy (dst + len, src + 3);
- }
- slashify (dst, dst, trailing_slash_p);
-}
-
-int
-mount_info::cygdrive_win32_path (const char *src, char *dst, int trailing_slash_p)
-{
- const char *p = src + cygdrive_len;
- if (!isalpha (*p) || (!isdirsep (p[1]) && p[1]))
- return 0;
- dst[0] = *p;
- dst[1] = ':';
- strcpy (dst + 2, p + 1);
- backslashify (dst, dst, trailing_slash_p || !dst[2]);
- debug_printf ("src '%s', dst '%s'", src, dst);
- return 1;
-}
-
-/* conv_to_posix_path: Ensure src_path is a POSIX path.
-
- The result is zero for success, or an errno value.
- posix_path must have sufficient space (i.e. MAX_PATH bytes).
- If keep_rel_p is non-zero, relative paths stay that way. */
-
-int
-mount_info::conv_to_posix_path (const char *src_path, char *posix_path,
- int keep_rel_p)
-{
- int src_path_len = strlen (src_path);
- int relative_path_p = !isabspath (src_path);
- int trailing_slash_p;
-
- if (src_path_len <= 1)
- trailing_slash_p = 0;
- else
- {
- const char *lastchar = src_path + src_path_len - 1;
- trailing_slash_p = SLASH_P (*lastchar) && lastchar[-1] != ':';
- }
-
- debug_printf ("conv_to_posix_path (%s, %s, %s)", src_path,
- keep_rel_p ? "keep-rel" : "no-keep-rel",
- trailing_slash_p ? "add-slash" : "no-add-slash");
- MALLOC_CHECK;
-
- if (src_path_len >= MAX_PATH)
- {
- debug_printf ("ENAMETOOLONG");
- return ENAMETOOLONG;
- }
-
- /* FIXME: For now, if the path is relative and it's supposed to stay
- that way, skip mount table processing. */
-
- if (keep_rel_p && relative_path_p)
- {
- slashify (src_path, posix_path, 0);
- debug_printf ("%s = conv_to_posix_path (%s)", posix_path, src_path);
- return 0;
- }
-
- char pathbuf[MAX_PATH];
- char cwd[MAX_PATH];
-
- /* No need to fetch cwd if path is absolute. */
- if (relative_path_p)
- getcwd_inner (cwd, MAX_PATH, 0, 0); /* FIXME: check rc */
- else
- strcpy (cwd, "/"); /* some innocuous value */
-
- int rc = normalize_win32_path (cwd, src_path, pathbuf);
- if (rc != 0)
- {
- debug_printf ("%d = conv_to_posix_path (%s)", rc, src_path);
- return rc;
- }
-
- int pathbuflen = strlen (pathbuf);
- for (int i = 0; i < nmounts; ++i)
- {
- mount_item &mi = mount[native_sorted[i]];
- if (! path_prefix_p (mi.native_path, pathbuf, mi.native_pathlen))
- continue;
-
- /* SRC_PATH is in the mount table. */
- int nextchar;
- const char *p = pathbuf + mi.native_pathlen;
-
- if (!*p || !p[1])
- nextchar = 0;
- else if (isdirsep (*p))
- nextchar = -1;
- else
- nextchar = 1;
-
- int addslash = nextchar > 0 ? 1 : 0;
- if ((mi.posix_pathlen + (pathbuflen - mi.native_pathlen) + addslash) >= MAX_PATH)
- return ENAMETOOLONG;
- strcpy (posix_path, mi.posix_path);
- if (addslash)
- strcat (posix_path, "/");
- if (nextchar)
- slashify (p,
- posix_path + addslash + (mi.posix_pathlen == 1 ? 0 : mi.posix_pathlen),
- trailing_slash_p);
- goto out;
- }
-
- /* Not in the database. This should [theoretically] only happen if either
- the path begins with //, or / isn't mounted, or the path has a drive
- letter not covered by the mount table. If it's a relative path then the
- caller must want an absolute path (otherwise we would have returned
- above). So we always return an absolute path at this point. */
- if (isdrive (pathbuf))
- cygdrive_posix_path (pathbuf, posix_path, trailing_slash_p);
- else
- {
- /* The use of src_path and not pathbuf here is intentional.
- We couldn't translate the path, so just ensure no \'s are present. */
- slashify (src_path, posix_path, trailing_slash_p);
- }
-
-out:
- debug_printf ("%s = conv_to_posix_path (%s)", posix_path, src_path);
- MALLOC_CHECK;
- return 0;
-}
-
-/* Return flags associated with a mount point given the win32 path. */
-
-unsigned
-mount_info::set_flags_from_win32_path (const char *p)
-{
- for (int i = 0; i < nmounts; i++)
- {
- mount_item &mi = mount[native_sorted[i]];
- if (path_prefix_p (mi.native_path, p, mi.native_pathlen))
- return mi.flags;
- }
- return 0;
-}
-
-/* read_mounts: Given a specific regkey, read mounts from under its
- key. */
-
-void
-mount_info::read_mounts (reg_key& r)
-{
- char posix_path[MAX_PATH];
- HKEY key = r.get_key ();
- DWORD i, posix_path_size;
- int found_cygdrive = FALSE;
-
- /* Loop through subkeys */
- /* FIXME: we would like to not check MAX_MOUNTS but the heap in the
- shared area is currently statically allocated so we can't have an
- arbitrarily large number of mounts. */
- for (DWORD i = 0; ; i++)
- {
- char native_path[MAX_PATH];
- int mount_flags;
-
- posix_path_size = MAX_PATH;
- /* FIXME: if maximum posix_path_size is 256, we're going to
- run into problems if we ever try to store a mount point that's
- over 256 but is under MAX_PATH! */
- LONG err = RegEnumKeyEx (key, i, posix_path, &posix_path_size, NULL,
- NULL, NULL, NULL);
-
- if (err == ERROR_NO_MORE_ITEMS)
- break;
- else if (err != ERROR_SUCCESS)
- {
- debug_printf ("RegEnumKeyEx failed, error %d!\n", err);
- break;
- }
-
- if (iscygdrive (posix_path))
- {
- found_cygdrive = TRUE;
- continue;
- }
-
- /* Get a reg_key based on i. */
- reg_key subkey = reg_key (key, KEY_READ, posix_path, NULL);
-
- /* Fetch info from the subkey. */
- subkey.get_string ("native", native_path, sizeof (native_path), "");
- mount_flags = subkey.get_int ("flags", 0);
-
- /* Add mount_item corresponding to registry mount point. */
- int res = cygwin_shared->mount.add_item (native_path, posix_path, mount_flags, FALSE);
- if (res && get_errno () == EMFILE)
- break; /* The number of entries exceeds MAX_MOUNTS */
- }
-
- if (!found_cygdrive)
- return;
-
-loop:
- for (i = 0; ;i++)
- {
- posix_path_size = MAX_PATH;
- LONG err = RegEnumKeyEx (key, i, posix_path, &posix_path_size, NULL,
- NULL, NULL, NULL);
-
- if (err != ERROR_SUCCESS)
- break;
-
- if (iscygdrive (posix_path))
- {
- /* This shouldn't be in the mount table. */
- (void) r.kill (posix_path);
- goto loop;
- }
- }
-}
-
-/* from_registry: Build the entire mount table from the registry. Also,
- read in cygdrive-related information from its registry location. */
-
-void
-mount_info::from_registry ()
-{
- /* Use current mount areas if either user or system mount areas
- already exist. Otherwise, import old mounts. */
-
- reg_key r;
-
- /* Retrieve cygdrive-related information. */
- read_cygdrive_info_from_registry ();
-
- nmounts = 0;
-
- /* First read mounts from user's table. */
- read_mounts (r);
-
- /* Then read mounts from system-wide mount table. */
- reg_key r1 (HKEY_LOCAL_MACHINE, KEY_READ, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
- read_mounts (r1);
-
- /* If we had to create both user and system mount areas, import
- old mounts. */
- if (had_to_create_mount_areas == 2)
- import_v1_mounts ();
-}
-
-/* add_reg_mount: Add mount item to registry. Return zero on success,
- non-zero on failure. */
-/* FIXME: Need a mutex to avoid collisions with other tasks. */
-
-int
-mount_info::add_reg_mount (const char * native_path, const char * posix_path, unsigned mountflags)
-{
- /* Add the mount to the right registry location, depending on
- whether MOUNT_SYSTEM is set in the mount flags. */
- if (!(mountflags & MOUNT_SYSTEM)) /* current_user mount */
- {
- /* reg_key for user mounts in HKEY_CURRENT_USER. */
- reg_key reg_user;
-
- /* Start by deleting existing mount if one exists. */
- reg_user.kill (posix_path);
-
- /* Create the new mount. */
- reg_key subkey = reg_key (reg_user.get_key (),
- KEY_ALL_ACCESS,
- posix_path, NULL);
- subkey.set_string ("native", native_path);
- subkey.set_int ("flags", mountflags);
- }
- else /* local_machine mount */
- {
- /* reg_key for system mounts in HKEY_LOCAL_MACHINE. */
- reg_key reg_sys (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
-
- if (reg_sys.get_key () == INVALID_HANDLE_VALUE)
- {
- set_errno (EACCES);
- return -1;
- }
-
- /* Start by deleting existing mount if one exists. */
- reg_sys.kill (posix_path);
-
- /* Create the new mount. */
- reg_key subkey = reg_key (reg_sys.get_key (),
- KEY_ALL_ACCESS,
- posix_path, NULL);
- subkey.set_string ("native", native_path);
- subkey.set_int ("flags", mountflags);
- }
-
- return 0; /* Success! */
-}
-
-/* del_reg_mount: delete mount item from registry indicated in flags.
- Return zero on success, non-zero on failure.*/
-/* FIXME: Need a mutex to avoid collisions with other tasks. */
-
-int
-mount_info::del_reg_mount (const char * posix_path, unsigned flags)
-{
- int killres;
-
- if ((flags & MOUNT_SYSTEM) == 0) /* Delete from user registry */
- {
- reg_key reg_user (KEY_ALL_ACCESS,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME, NULL);
- killres = reg_user.kill (posix_path);
- }
- else /* Delete from system registry */
- {
- reg_key reg_sys (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
-
- if (reg_sys.get_key () == INVALID_HANDLE_VALUE)
- {
- set_errno (EACCES);
- return -1;
- }
-
- killres = reg_sys.kill (posix_path);
- }
-
- if (killres != ERROR_SUCCESS)
- {
- __seterrno_from_win_error (killres);
- return -1;
- }
-
- return 0; /* Success! */
-}
-
-/* read_cygdrive_info_from_registry: Read the default prefix and flags
- to use when creating cygdrives from the special user registry
- location used to store cygdrive information. */
-
-void
-mount_info::read_cygdrive_info_from_registry ()
-{
- /* reg_key for user path prefix in HKEY_CURRENT_USER. */
- reg_key r;
-
- if (r.get_string ("cygdrive prefix", cygdrive, sizeof (cygdrive), "") != 0)
- {
- /* Didn't find the user path prefix so check the system path prefix. */
-
- /* reg_key for system path prefix in HKEY_LOCAL_MACHINE. */
- reg_key r2 (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
-
- if (r2.get_string ("cygdrive prefix", cygdrive, sizeof (cygdrive), "") != 0)
- {
- /* Didn't find either so write the default to the registry and use it.
- NOTE: We are writing and using the user path prefix. */
- write_cygdrive_info_to_registry ("/cygdrive", MOUNT_AUTO);
- }
- else
- {
- /* Fetch system cygdrive_flags from registry; returns MOUNT_AUTO on
- error. */
- cygdrive_flags = r2.get_int ("cygdrive flags", MOUNT_AUTO);
- slashify (cygdrive, cygdrive, 1);
- cygdrive_len = strlen(cygdrive);
- }
- }
- else
- {
- /* Fetch user cygdrive_flags from registry; returns MOUNT_AUTO on
- error. */
- cygdrive_flags = r.get_int ("cygdrive flags", MOUNT_AUTO);
- slashify (cygdrive, cygdrive, 1);
- cygdrive_len = strlen(cygdrive);
- }
-}
-
-/* write_cygdrive_info_to_registry: Write the default prefix and flags
- to use when creating cygdrives to the special user registry
- location used to store cygdrive information. */
-
-int
-mount_info::write_cygdrive_info_to_registry (const char *cygdrive_prefix, unsigned flags)
-{
- /* Determine whether to modify user or system cygdrive path prefix. */
- HKEY top = (flags & MOUNT_SYSTEM) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
-
- /* reg_key for user path prefix in HKEY_CURRENT_USER or system path prefix in
- HKEY_LOCAL_MACHINE. */
- reg_key r (top, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
-
- /* Verify cygdrive prefix starts with a forward slash and if there's
- another character, it's not a slash. */
- if ((cygdrive_prefix == NULL) || (*cygdrive_prefix == 0) ||
- (!isslash (cygdrive_prefix[0])) ||
- ((cygdrive_prefix[1] != '\0') && (isslash (cygdrive_prefix[1]))))
- {
- set_errno (EINVAL);
- return -1;
- }
-
- char hold_cygdrive_prefix[strlen (cygdrive_prefix) + 1];
- /* Ensure that there is never a final slash */
- nofinalslash (cygdrive_prefix, hold_cygdrive_prefix);
-
- r.set_string ("cygdrive prefix", hold_cygdrive_prefix);
- r.set_int ("cygdrive flags", flags);
-
- /* This also needs to go in the in-memory copy of "cygdrive", but only if
- appropriate:
- 1. setting user path prefix, or
- 2. overwriting (a previous) system path prefix */
- if ((flags & MOUNT_SYSTEM) == 0 ||
- (cygwin_shared->mount.cygdrive_flags & MOUNT_SYSTEM) != 0)
- {
- slashify (cygdrive_prefix, cygwin_shared->mount.cygdrive, 1);
- cygwin_shared->mount.cygdrive_flags = flags;
- cygwin_shared->mount.cygdrive_len = strlen(cygwin_shared->mount.cygdrive);
- }
-
- return 0;
-}
-
-int
-mount_info::remove_cygdrive_info_from_registry (const char *cygdrive_prefix, unsigned flags)
-{
- /* Determine whether to modify user or system cygdrive path prefix. */
- HKEY top = (flags & MOUNT_SYSTEM) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
-
- /* reg_key for user path prefix in HKEY_CURRENT_USER or system path prefix in
- HKEY_LOCAL_MACHINE. */
- reg_key r (top, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
-
- /* Delete cygdrive prefix and flags. */
- int res = r.killvalue ("cygdrive prefix");
- int res2 = r.killvalue ("cygdrive flags");
-
- /* Reinitialize the cygdrive path prefix to reflect to removal from the
- registry. */
- read_cygdrive_info_from_registry ();
-
- return (res != ERROR_SUCCESS) ? res : res2;
-}
-
-int
-mount_info::get_cygdrive_prefixes (char *user, char *system)
-{
- /* Get the user path prefix from HKEY_CURRENT_USER. */
- reg_key r;
- int res = r.get_string ("cygdrive prefix", user, MAX_PATH, "");
-
- /* Get the system path prefix from HKEY_LOCAL_MACHINE. */
- reg_key r2 (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS, "SOFTWARE",
- CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
- CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME,
- NULL);
- int res2 = r2.get_string ("cygdrive prefix", system, MAX_PATH, "");
-
- return (res != ERROR_SUCCESS) ? res : res2;
-}
-
-struct mntent *
-mount_info::getmntent (int x)
-{
- if (x < 0 || x >= nmounts)
- return NULL;
-
- return mount[native_sorted[x]].getmntent ();
-}
-
-static mount_item *mounts_for_sort;
-
-/* sort_by_posix_name: qsort callback to sort the mount entries. Sort
- user mounts ahead of system mounts to the same POSIX path. */
-/* FIXME: should the user should be able to choose whether to
- prefer user or system mounts??? */
-static int
-sort_by_posix_name (const void *a, const void *b)
-{
- mount_item *ap = mounts_for_sort + (*((int*) a));
- mount_item *bp = mounts_for_sort + (*((int*) b));
-
- /* Base weighting on longest posix path first so that the most
- obvious path will be chosen. */
- size_t alen = strlen (ap->posix_path);
- size_t blen = strlen (bp->posix_path);
-
- int res = blen - alen;
-
- if (res)
- return res; /* Path lengths differed */
-
- /* The two paths were the same length, so just determine normal
- lexical sorted order. */
- res = strcmp (ap->posix_path, bp->posix_path);
-
- if (res == 0)
- {
- /* need to select between user and system mount to same POSIX path */
- if ((bp->flags & MOUNT_SYSTEM) == 0) /* user mount */
- return 1;
- else
- return -1;
- }
-
- return res;
-}
-
-/* sort_by_native_name: qsort callback to sort the mount entries. Sort
- user mounts ahead of system mounts to the same POSIX path. */
-/* FIXME: should the user should be able to choose whether to
- prefer user or system mounts??? */
-static int
-sort_by_native_name (const void *a, const void *b)
-{
- mount_item *ap = mounts_for_sort + (*((int*) a));
- mount_item *bp = mounts_for_sort + (*((int*) b));
-
- /* Base weighting on longest win32 path first so that the most
- obvious path will be chosen. */
- size_t alen = strlen (ap->native_path);
- size_t blen = strlen (bp->native_path);
-
- int res = blen - alen;
-
- if (res)
- return res; /* Path lengths differed */
-
- /* The two paths were the same length, so just determine normal
- lexical sorted order. */
- res = strcmp (ap->native_path, bp->native_path);
-
- if (res == 0)
- {
- /* need to select between user and system mount to same POSIX path */
- if ((bp->flags & MOUNT_SYSTEM) == 0) /* user mount */
- return 1;
- else
- return -1;
- }
-
- return res;
-}
-
-void
-mount_info::sort ()
-{
- for (int i = 0; i < nmounts; i++)
- native_sorted[i] = posix_sorted[i] = i;
- /* Sort them into reverse length order, otherwise we won't
- be able to look for /foo in /. */
- mounts_for_sort = mount; /* ouch. */
- qsort (posix_sorted, nmounts, sizeof (posix_sorted[0]), sort_by_posix_name);
- qsort (native_sorted, nmounts, sizeof (native_sorted[0]), sort_by_native_name);
-}
-
-/* Add an entry to the mount table.
- Returns 0 on success, -1 on failure and errno is set.
-
- This is where all argument validation is done. It may not make sense to
- do this when called internally, but it's cleaner to keep it all here. */
-
-int
-mount_info::add_item (const char *native, const char *posix, unsigned mountflags, int reg_p)
-{
- /* Something's wrong if either path is NULL or empty, or if it's
- not a UNC or absolute path. */
-
- if ((native == NULL) || (*native == 0) ||
- (posix == NULL) || (*posix == 0) ||
- (!slash_unc_prefix_p (native) && !isabspath (native)))
- {
- set_errno (EINVAL);
- return -1;
- }
-
- /* Make sure both paths do not end in /. */
- char nativetmp[MAX_PATH];
- char posixtmp[MAX_PATH];
-
- if (slash_drive_prefix_p (native))
- slash_drive_to_win32_path (native, nativetmp, 0);
- else
- backslashify (native, nativetmp, 0);
- nofinalslash (nativetmp, nativetmp);
-
- slashify (posix, posixtmp, 0);
- nofinalslash (posixtmp, posixtmp);
-
- debug_printf ("%s[%s], %s[%s], %p",
- native, nativetmp, posix, posixtmp, mountflags);
-
- /* Duplicate /'s in path are an error. */
- for (char *p = posixtmp + 1; *p; ++p)
- {
- if (p[-1] == '/' && p[0] == '/')
- {
- set_errno (EINVAL);
- return -1;
- }
- }
-
- /* Write over an existing mount item with the same POSIX path if
- it exists and is from the same registry area. */
- int i;
- for (i = 0; i < nmounts; i++)
- {
- if (strcasematch (mount[i].posix_path, posixtmp) &&
- (mount[i].flags & MOUNT_SYSTEM) == (mountflags & MOUNT_SYSTEM))
- break;
- }
-
- if (i == nmounts)
- {
- if (nmounts < MAX_MOUNTS)
- i = nmounts++;
- else
- {
- set_errno (EMFILE);
- return -1;
- }
- }
-
- if (reg_p && add_reg_mount (nativetmp, posixtmp, mountflags))
- return -1;
-
- mount[i].init (nativetmp, posixtmp, mountflags);
- sort ();
-
- return 0;
-}
-
-/* Delete a mount table entry where path is either a Win32 or POSIX
- path. Since the mount table is really just a table of aliases,
- deleting / is ok (although running without a slash mount is
- strongly discouraged because some programs may run erratically
- without one). If MOUNT_SYSTEM is set in flags, remove from system
- registry, otherwise remove the user registry mount.
-*/
-
-int
-mount_info::del_item (const char *path, unsigned flags, int reg_p)
-{
- char pathtmp[MAX_PATH];
- int posix_path_p = FALSE;
-
- /* Something's wrong if path is NULL or empty. */
- if (path == NULL || *path == 0 || !isabspath (path))
- {
- set_errno (EINVAL);
- return -1;
- }
-
- if (slash_drive_prefix_p (path))
- slash_drive_to_win32_path (path, pathtmp, 0);
- else if (slash_unc_prefix_p (path) || strpbrk (path, ":\\"))
- backslashify (path, pathtmp, 0);
- else
- {
- slashify (path, pathtmp, 0);
- posix_path_p = TRUE;
- }
- nofinalslash (pathtmp, pathtmp);
-
- if (reg_p && posix_path_p &&
- del_reg_mount (pathtmp, flags) &&
- del_reg_mount (path, flags)) /* for old irregular entries */
- return -1;
-
- for (int i = 0; i < nmounts; i++)
- {
- int ent = native_sorted[i]; /* in the same order as getmntent() */
- if (((posix_path_p)
- ? strcasematch (mount[ent].posix_path, pathtmp)
- : strcasematch (mount[ent].native_path, pathtmp)) &&
- (mount[ent].flags & MOUNT_SYSTEM) == (flags & MOUNT_SYSTEM))
- {
- if (!posix_path_p &&
- reg_p && del_reg_mount (mount[ent].posix_path, flags))
- return -1;
-
- nmounts--; /* One less mount table entry */
- /* Fill in the hole if not at the end of the table */
- if (ent < nmounts)
- memmove (mount + ent, mount + ent + 1,
- sizeof (mount[ent]) * (nmounts - ent));
- sort (); /* Resort the table */
- return 0;
- }
- }
- set_errno (EINVAL);
- return -1;
-}
-
-/* read_v1_mounts: Given a reg_key to an old mount table registry area,
- read in the mounts. The "which" arg contains zero if we're reading
- the user area and MOUNT_SYSTEM if we're reading the system area.
- This way we can store the mounts read in the appropriate place when
- they are written back to the new registry layout. */
-
-void
-mount_info::read_v1_mounts (reg_key r, unsigned which)
-{
- unsigned mountflags = 0;
-
- /* MAX_MOUNTS was 30 when we stopped using the v1 layout */
- for (int i = 0; i < 30; i++)
- {
- char key_name[10];
- char win32path[MAX_PATH];
- char unixpath[MAX_PATH];
-
- __small_sprintf (key_name, "%02x", i);
-
- reg_key k (r.get_key (), KEY_ALL_ACCESS, key_name, NULL);
-
- /* The registry names are historical but useful so are left alone. */
- k.get_string ("native", win32path, sizeof (win32path), "");
- k.get_string ("unix", unixpath, sizeof (unixpath), "");
-
- /* Does this entry contain something? */
- if (*win32path != 0)
- {
- mountflags = 0;
-
- if (k.get_int ("fbinary", 0))
- mountflags |= MOUNT_BINARY;
-
- /* Or in zero or MOUNT_SYSTEM depending on which table
- we're reading. */
- mountflags |= which;
-
- int res = cygwin_shared->mount.add_item (win32path, unixpath, mountflags, TRUE);
- if (res && get_errno () == EMFILE)
- break; /* The number of entries exceeds MAX_MOUNTS */
- }
- }
-}
-
-/* import_v1_mounts: If v1 mounts are present, load them and write
- the new entries to the new registry area. */
-
-void
-mount_info::import_v1_mounts ()
-{
- reg_key r (HKEY_CURRENT_USER, KEY_ALL_ACCESS,
- "SOFTWARE",
- "Cygnus Solutions",
- "CYGWIN.DLL setup",
- "b15.0",
- "mounts",
- NULL);
-
- nmounts = 0;
-
- /* First read mounts from user's table. */
- read_v1_mounts (r, 0);
-
- /* Then read mounts from system-wide mount table. */
- reg_key r1 (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS,
- "SOFTWARE",
- "Cygnus Solutions",
- "CYGWIN.DLL setup",
- "b15.0",
- "mounts",
- NULL);
- read_v1_mounts (r1, MOUNT_SYSTEM);
-}
-
-/************************* mount_item class ****************************/
-
-struct mntent *
-mount_item::getmntent ()
-{
-#ifdef _MT_SAFE
- struct mntent &ret=_reent_winsup()->_ret;
-#else
- static NO_COPY struct mntent ret;
-#endif
-
- /* Pass back pointers to mount_info strings reserved for use by
- getmntent rather than pointers to strings in the internal mount
- table because the mount table might change, causing weird effects
- from the getmntent user's point of view. */
-
- strcpy (cygwin_shared->mount.mnt_fsname, native_path);
- ret.mnt_fsname = cygwin_shared->mount.mnt_fsname;
- strcpy (cygwin_shared->mount.mnt_dir, posix_path);
- ret.mnt_dir = cygwin_shared->mount.mnt_dir;
-
- if (!(flags & MOUNT_SYSTEM)) /* user mount */
- strcpy (cygwin_shared->mount.mnt_type, (char *) "user");
- else /* system mount */
- strcpy (cygwin_shared->mount.mnt_type, (char *) "system");
-
- if ((flags & MOUNT_AUTO)) /* cygdrive */
- strcat (cygwin_shared->mount.mnt_type, (char *) ",auto");
-
- ret.mnt_type = cygwin_shared->mount.mnt_type;
-
- /* mnt_opts is a string that details mount params such as
- binary or textmode, or exec. We don't print
- `silent' here; it's a magic internal thing. */
-
- if (! (flags & MOUNT_BINARY))
- strcpy (cygwin_shared->mount.mnt_opts, (char *) "textmode");
- else
- strcpy (cygwin_shared->mount.mnt_opts, (char *) "binmode");
-
- if (flags & MOUNT_CYGWIN_EXEC)
- strcat (cygwin_shared->mount.mnt_opts, (char *) ",cygexec");
- else if (flags & MOUNT_EXEC)
- strcat (cygwin_shared->mount.mnt_opts, (char *) ",exec");
-
-
- ret.mnt_opts = cygwin_shared->mount.mnt_opts;
-
- ret.mnt_freq = 1;
- ret.mnt_passno = 1;
- return &ret;
-}
-
-/* Fill in the fields of a mount table entry. */
-
-void
-mount_item::init (const char *native, const char *posix, unsigned mountflags)
-{
- strcpy ((char *) native_path, native);
- strcpy ((char *) posix_path, posix);
-
- native_pathlen = strlen (native_path);
- posix_pathlen = strlen (posix_path);
-
- flags = mountflags;
-}
-
-/********************** Mount System Calls **************************/
-
-/* Mount table system calls.
- Note that these are exported to the application. */
-
-/* mount: Add a mount to the mount table in memory and to the registry
- that will cause paths under win32_path to be translated to paths
- under posix_path. */
-
-extern "C"
-int
-mount (const char *win32_path, const char *posix_path, unsigned flags)
-{
- int res = -1;
-
- if (flags & MOUNT_AUTO) /* normal mount */
- {
- /* When flags include MOUNT_AUTO, take this to mean that
- we actually want to change the cygdrive prefix and flags
- without actually mounting anything. */
- res = cygwin_shared->mount.write_cygdrive_info_to_registry (posix_path, flags);
- win32_path = NULL;
- }
- else
- {
- if (iscygdrive (posix_path))
- {
- set_errno (EINVAL);
- return res; /* Don't try to add cygdrive prefix. */
- }
-
- res = cygwin_shared->mount.add_item (win32_path, posix_path, flags, TRUE);
- }
-
- syscall_printf ("%d = mount (%s, %s, %p)", res, win32_path, posix_path, flags);
- return res;
-}
-
-/* umount: The standard umount call only has a path parameter. Since
- it is not possible for this call to specify whether to remove the
- mount from the user or global mount registry table, assume the user
- table. */
-
-extern "C"
-int
-umount (const char *path)
-{
- return cygwin_umount (path, 0);
-}
-
-/* cygwin_umount: This is like umount but takes an additional flags
- parameter that specifies whether to umount from the user or system-wide
- registry area. */
-
-extern "C"
-int
-cygwin_umount (const char *path, unsigned flags)
-{
- int res = -1;
-
- if (flags & MOUNT_AUTO)
- {
- /* When flags include MOUNT_AUTO, take this to mean that we actually want
- to remove the cygdrive prefix and flags without actually unmounting
- anything. */
- res = cygwin_shared->mount.remove_cygdrive_info_from_registry (path, flags);
- }
- else
- {
- res = cygwin_shared->mount.del_item (path, flags, TRUE);
- }
-
- syscall_printf ("%d = cygwin_umount (%s, %d)", res, path, flags);
- return res;
-}
-
-#ifdef _MT_SAFE
-#define iteration _reent_winsup()->_iteration
-#else
-static int iteration;
-#endif
-
-extern "C"
-FILE *
-setmntent (const char *filep, const char *)
-{
- iteration = 0;
- return (FILE *) filep;
-}
-
-extern "C"
-struct mntent *
-getmntent (FILE *)
-{
- return cygwin_shared->mount.getmntent (iteration++);
-}
-
-extern "C"
-int
-endmntent (FILE *)
-{
- return 1;
-}
-
-/********************** Symbolic Link Support **************************/
-
-/* Create a symlink from FROMPATH to TOPATH. */
-
-extern "C"
-int
-symlink (const char *topath, const char *frompath)
-{
- HANDLE h;
- int res = -1;
-
- path_conv win32_path (frompath, PC_SYM_NOFOLLOW);
- if (win32_path.error)
- {
- set_errno (win32_path.error);
- goto done;
- }
-
- syscall_printf ("symlink (%s, %s)", topath, win32_path.get_win32 ());
-
- if (topath[0] == 0)
- {
- set_errno (EINVAL);
- goto done;
- }
- if (strlen (topath) >= MAX_PATH)
- {
- set_errno (ENAMETOOLONG);
- goto done;
- }
-
- if (win32_path.is_device () ||
- win32_path.file_attributes () != (DWORD) -1)
- {
- set_errno (EEXIST);
- goto done;
- }
-
- h = CreateFileA(win32_path.get_win32 (), GENERIC_WRITE, 0, &sec_none_nih,
- CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
- if (h == INVALID_HANDLE_VALUE)
- __seterrno ();
- else
- {
- char buf[sizeof (SYMLINK_COOKIE) + MAX_PATH + 10];
-
- __small_sprintf (buf, "%s%s", SYMLINK_COOKIE, topath);
- DWORD len = strlen (buf) + 1;
-
- /* Note that the terminating nul is written. */
- DWORD written;
- if (!WriteFile (h, buf, len, &written, NULL) || written != len)
- {
- __seterrno ();
- CloseHandle (h);
- DeleteFileA (win32_path.get_win32 ());
- }
- else
- {
- CloseHandle (h);
- set_file_attribute (win32_path.has_acls (),
- win32_path.get_win32 (),
- S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO);
- SetFileAttributesA (win32_path.get_win32 (), FILE_ATTRIBUTE_SYSTEM);
- res = 0;
- }
- }
-
-done:
- syscall_printf ("%d = symlink (%s, %s)", res, topath, frompath);
- return res;
-}
-
-static __inline char *
-has_suffix (const char *path, const suffix_info *suffixes)
-{
- char *ext = strrchr (path, '.');
- if (ext)
- for (const suffix_info *ex = suffixes; ex->name != NULL; ex++)
- if (strcasematch (ext, ex->name))
- return ext;
- return NULL;
-}
-
-static __inline__ int
-next_suffix (char *ext_here, const suffix_info *&suffixes)
-{
- if (!suffixes)
- return 1;
-
- while (suffixes && suffixes->name)
- if (!suffixes->addon)
- suffixes++;
- else
- {
- strcpy (ext_here, suffixes->name);
- suffixes++;
- return 1;
- }
- return 0;
-}
-
-/* Check if PATH is a symlink. PATH must be a valid Win32 path name.
-
- If PATH is a symlink, put the value of the symlink--the file to
- which it points--into BUF. The value stored in BUF is not
- necessarily null terminated. BUFLEN is the length of BUF; only up
- to BUFLEN characters will be stored in BUF. BUF may be NULL, in
- which case nothing will be stored.
-
- Set *SYML if PATH is a symlink.
-
- Set *EXEC if PATH appears to be executable. This is an efficiency
- hack because we sometimes have to open the file anyhow. *EXEC will
- not be set for every executable file.
-
- Return -1 on error, 0 if PATH is not a symlink, or the length
- stored into BUF if PATH is a symlink. */
-
-int
-symlink_info::check (const char *in_path, const suffix_info *suffixes)
-{
- HANDLE h;
- int res = 0;
- char extbuf[MAX_PATH + 5];
- const char *path = in_path;
-
- if (!suffixes)
- ext_here = NULL;
- else if ((known_suffix = has_suffix (in_path, suffixes)) != NULL)
- {
- suffixes = NULL;
- ext_here = NULL;
- }
- else
- {
- path = strcpy (extbuf, in_path);
- ext_here = strchr (path, '\0');
- }
-
- is_symlink = TRUE;
-
- error = 0;
- do
- {
- if (!next_suffix (ext_here, suffixes))
- break;
- error = 0;
- fileattr = GetFileAttributesA (path);
- if (fileattr == (DWORD) -1)
- {
- /* The GetFileAttributesA call can fail for reasons that don't
- matter, so we just return 0. For example, getting the
- attributes of \\HOST will typically fail. */
- debug_printf ("GetFileAttributesA (%s) failed", path);
- error = geterrno_from_win_error (GetLastError (), EACCES);
- continue;
- }
-
- /* Windows allows path\. even when `path' isn't a directory.
- Detect this scenario and disallow it, since it is non-UNIX like.
- FIXME: This code actually checks for things like foo/ and foo/..
- even though those usages have already been (erroneously?) eaten
- by cygwin_shared->mount.conv_to_win32_path in path_conv::check. */
-
- char *p = strrchr (path, '\\');
- if (p && !(fileattr & FILE_ATTRIBUTE_DIRECTORY) &&
- (*++p == '\0' || (*p == '.' && (*++p == '\0' || (*p == '.' && p[1] == '\0')))))
- {
- debug_printf ("%s is a non-directory", path);
- error = ENOTDIR;
- goto file_not_symlink;
- }
-
- /* A symlink will have the `system' file attribute. */
- /* Only files can be symlinks (which can be symlinks to directories). */
- if (!(pflags & PATH_SYMLINK) && !SYMLINKATTR (fileattr))
- goto file_not_symlink;
-
- /* Open the file. */
-
- h = CreateFileA (path, GENERIC_READ, FILE_SHARE_READ, &sec_none_nih, OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL, 0);
- res = -1;
- if (h == INVALID_HANDLE_VALUE)
- goto file_not_symlink;
- else
- {
- char cookie_buf[sizeof (SYMLINK_COOKIE) - 1];
- DWORD got;
-
- if (! ReadFile (h, cookie_buf, sizeof (cookie_buf), &got, 0))
- error = EIO;
- else if (got == sizeof (cookie_buf)
- && memcmp (cookie_buf, SYMLINK_COOKIE,
- sizeof (cookie_buf)) == 0)
- {
- /* It's a symlink. */
- pflags = PATH_SYMLINK;
-
- res = ReadFile (h, contents, MAX_PATH + 1, &got, 0);
- if (!res)
- error = EIO;
- else
- {
- /* Versions prior to b16 stored several trailing
- NULs with the path (to fill the path out to 1024
- chars). Current versions only store one trailing
- NUL. The length returned is the path without
- *any* trailing NULs. We also have to handle (or
- at least not die from) corrupted paths. */
- if (memchr (contents, 0, got) != NULL)
- res = strlen (contents);
- else
- res = got;
- }
- }
- else if (got == sizeof (cookie_buf)
- && memcmp (cookie_buf, SOCKET_COOKIE,
- sizeof (cookie_buf)) == 0)
- {
- pflags |= PATH_SOCKET;
- goto close_and_return;
- }
- else
- {
- /* Not a symlink, see if executable. */
- if (!(pflags & (PATH_EXEC | PATH_CYGWIN_EXEC)) && got >= 2 &&
- ((cookie_buf[0] == '#' && cookie_buf[1] == '!') ||
- (cookie_buf[0] == ':' && cookie_buf[1] == '\n')))
- pflags |= PATH_EXEC;
- close_and_return:
- CloseHandle (h);
- goto file_not_symlink;
- }
- }
-
- CloseHandle (h);
- break;
- }
- while (suffixes);
- goto out;
-
-file_not_symlink:
- is_symlink = FALSE;
- syscall_printf ("not a symlink");
- res = 0;
-
-out:
- syscall_printf ("%d = symlink.check (%s, %p) (%p)",
- res, path, contents, pflags);
-
- return res;
-}
-
-/* readlink system call */
-
-extern "C"
-int
-readlink (const char *path, char *buf, int buflen)
-{
- extern suffix_info stat_suffixes[];
- path_conv pathbuf (path, PC_SYM_CONTENTS, stat_suffixes);
-
- if (pathbuf.error)
- {
- set_errno (pathbuf.error);
- syscall_printf ("-1 = readlink (%s, %p, %d)", path, buf, buflen);
- return -1;
- }
-
- if (!pathbuf.issymlink ())
- {
- if (pathbuf.fileattr != (DWORD) -1)
- set_errno (EINVAL);
- return -1;
- }
-
- int len = strlen (pathbuf.get_win32 ());
- if (len > (buflen - 1))
- {
- set_errno (ENAMETOOLONG);
- return -1;
- }
- memcpy (buf, pathbuf.get_win32 (), len);
- buf[len] = '\0';
-
- /* errno set by symlink.check if error */
- return len;
-}
-
-/* Some programs rely on st_dev/st_ino being unique for each file.
- Hash the path name and hope for the best. The hash arg is not
- always initialized to zero since readdir needs to compute the
- dirent ino_t based on a combination of the hash of the directory
- done during the opendir call and the hash or the filename within
- the directory. FIXME: Not bullet-proof. */
-/* Cygwin internal */
-
-unsigned long __stdcall
-hash_path_name (unsigned long hash, const char *name)
-{
- if (!*name)
- return hash;
-
- /* Perform some initial permutations on the pathname if this is
- not "seeded" */
- if (!hash)
- {
- /* Simplistic handling of drives. If there is a drive specified,
- make sure that the initial letter is upper case. If there is
- no \ after the ':' assume access through the root directory
- of that drive.
- FIXME: Should really honor MS-Windows convention of using
- the environment to track current directory on various drives. */
- if (name[1] == ':')
- {
- char *nn, *newname = (char *) alloca (strlen (name) + 2);
- nn = strncpy (newname, name, 2);
- if (islower (*nn))
- *newname = toupper (*nn);
- *(nn += 2) = '\0';
- name += 2;
- if (*name != '\\')
- {
- *nn = '\\';
- *++nn = '\0';
- }
- strcpy (nn, name);
- name = newname;
- goto hashit;
- }
-
- /* Fill out the hashed path name with the current working directory if
- this is not an absolute path and there is no pre-specified hash value.
- Otherwise the inodes same will differ depending on whether a file is
- referenced with an absolute value or relatively. */
-
- if (*name != '\\' && (cwd_win32 == NULL ||
- get_cwd_win32 ()))
- {
- hash = cwd_hash;
- if (name[0] == '.' && name[1] == '\0')
- return hash;
- hash = hash_path_name (hash, "\\");
- }
- }
-
-hashit:
- /* Build up hash. Ignore single trailing slash or \a\b\ != \a\b or
- \a\b\. but allow a single \ if that's all there is. */
- do
- {
- hash += *name + (*name << 17);
- hash ^= hash >> 2;
- }
- while (*++name != '\0' &&
- !(*name == '\\' && (!name[1] || (name[1] == '.' && !name[2]))));
- return hash;
-}
-
-static int
-get_cwd_win32 ()
-{
- DWORD dlen, len;
-
- for (dlen = 256; ; dlen *= 2)
- {
- cwd_win32 = (char *) realloc (cwd_win32, dlen + 2);
- if ((len = GetCurrentDirectoryA (dlen, cwd_win32)) < dlen)
- break;
- }
-
- if (len == 0)
- __seterrno ();
- else
- cwd_hash = hash_path_name (0, cwd_win32);
-
- return len;
-}
-
-/* getcwd */
-
-char *
-getcwd_inner (char *buf, size_t ulen, int posix_p, int with_chroot)
-{
- char *resbuf = NULL;
- size_t len = ulen;
-
- if (cwd_win32 == NULL && !get_cwd_win32 ())
- return NULL;
-
- if (!posix_p)
- {
- if (strlen (cwd_win32) >= len)
- set_errno (ERANGE);
- else
- {
- strcpy (buf, cwd_win32);
- resbuf = buf;
- }
-
- syscall_printf ("%p (%s) = getcwd_inner (%p, %d, win32) (cached)",
- resbuf, resbuf ? resbuf : "", buf, len);
- return resbuf;
- }
- else if (cwd_posix != NULL)
- {
- debug_printf("myself->root: %s, cwd_posix: %s", myself->root, cwd_posix);
- if (strlen (cwd_posix) >= len)
- set_errno (ERANGE);
- else if (with_chroot && ischrootpath(cwd_posix))
- {
- strcpy (buf, cwd_posix + myself->rootlen);
- if (!buf[0])
- strcpy (buf, "/");
- resbuf = buf;
- }
- else
- {
- strcpy (buf, cwd_posix);
- resbuf = buf;
- }
-
- syscall_printf ("%p (%s) = getcwd_inner (%p, %d, posix) (cached)",
- resbuf, resbuf ? resbuf : "", buf, len);
- return resbuf;
- }
-
- /* posix_p required and cwd_posix == NULL */
-
- char temp[MAX_PATH];
-
- /* Turn from Win32 style to our style. */
- cygwin_shared->mount.conv_to_posix_path (cwd_win32, temp, 0);
-
- size_t tlen = strlen (temp);
-
- if (with_chroot && ischrootpath (temp))
- tlen -= myself->rootlen;
-
- cwd_posix = (char *) realloc (
- cwd_posix, tlen + 1);
- if (cwd_posix != NULL)
- if (with_chroot && ischrootpath (temp))
- {
- strcpy (cwd_posix, temp + myself->rootlen);
- if (!buf[0])
- strcpy (buf, "/");
- }
- else
- strcpy (cwd_posix, temp);
-
- if (tlen >= ulen)
- {
- /* len was too small */
- set_errno (ERANGE);
- }
- else
- {
- strcpy (buf, temp);
- resbuf = buf;
- }
-
- syscall_printf ("%p (%s) = getcwd_inner (%p, %d, %s)",
- resbuf, resbuf ? resbuf : "",
- buf, len, posix_p ? "posix" : "win32");
- return resbuf;
-}
-
-char *
-getcwd (char *buf, size_t ulen)
-{
- char *res;
-
- if (buf == NULL || ulen == 0)
- {
- buf = (char *) alloca (MAX_PATH);
- res = getcwd_inner (buf, MAX_PATH, 1, 1);
- res = strdup (buf);
- }
- else
- {
- res = getcwd_inner (buf, ulen, 1, 1);
- }
-
- return res;
-}
-
-/* getwd: standards? */
-extern "C"
-char *
-getwd (char *buf)
-{
- return getcwd (buf, MAX_PATH);
-}
-
-/* chdir: POSIX 5.2.1.1 */
-extern "C"
-int
-chdir (const char *dir)
-{
- syscall_printf ("dir %s", dir);
- path_conv path (dir);
-
- if (path.error)
- {
- set_errno (path.error);
- syscall_printf ("-1 = chdir (%s)", dir);
- return -1;
- }
-
- char *native_dir = path.get_win32 ();
-
- /* Check to see if path translates to something like C:.
- If it does, append a \ to the native directory specification to
- defeat the Windows 95 (i.e. MS-DOS) tendency of returning to
- the last directory visited on the given drive. */
- if (isdrive (native_dir) && !native_dir[2])
- {
- native_dir[2] = '\\';
- native_dir[3] = '\0';
- }
- int res = SetCurrentDirectoryA (native_dir) ? 0 : -1;
- if (res == -1)
- __seterrno ();
- else
- {
- /* Store new cache information */
- free (cwd_win32);
- cwd_win32 = strdup (path);
-
- char pathbuf[MAX_PATH];
- (void) normalize_posix_path (cwd_posix, dir, pathbuf);
- /* Look for trailing path component consisting entirely of dots. This
- is needed only in case of chdir since Windows simply ignores count
- of dots > 2 here instead of returning an error code. Counts of dots
- <= 2 are already eliminated by normalize_posix_path. */
- char *last_slash = strrchr (pathbuf, '/');
- if (last_slash > pathbuf && strspn (last_slash + 1, ".") == strlen (last_slash + 1))
- *last_slash = '\0';
- free (cwd_posix);
- cwd_posix = strdup (pathbuf);
- }
-
- syscall_printf ("%d = chdir() cwd_posix '%s' native '%s'", res, cwd_posix, native_dir);
- return res;
-}
-
-/******************** Exported Path Routines *********************/
-
-/* Cover functions to the path conversion routines.
- These are exported to the world as cygwin_foo by cygwin.din. */
-
-extern "C"
-int
-cygwin_conv_to_win32_path (const char *path, char *win32_path)
-{
- path_conv p (path, PC_SYM_FOLLOW);
- if (p.error)
- {
- set_errno (p.error);
- return -1;
- }
-
- strcpy (win32_path, p.get_win32 ());
- return 0;
-}
-
-extern "C"
-int
-cygwin_conv_to_full_win32_path (const char *path, char *win32_path)
-{
- path_conv p (path, PC_SYM_FOLLOW | PC_FULL);
- if (p.error)
- {
- set_errno (p.error);
- return -1;
- }
-
- strcpy (win32_path, p.get_win32 ());
- return 0;
-}
-
-/* This is exported to the world as cygwin_foo by cygwin.din. */
-
-extern "C"
-int
-cygwin_conv_to_posix_path (const char *path, char *posix_path)
-{
- if (check_null_empty_path_errno (path))
- return -1;
- cygwin_shared->mount.conv_to_posix_path (path, posix_path, 1);
- return 0;
-}
-
-extern "C"
-int
-cygwin_conv_to_full_posix_path (const char *path, char *posix_path)
-{
- if (check_null_empty_path_errno (path))
- return -1;
- cygwin_shared->mount.conv_to_posix_path (path, posix_path, 0);
- return 0;
-}
-
-/* The realpath function is supported on some UNIX systems. */
-
-extern "C"
-char *
-realpath (const char *path, char *resolved)
-{
- int err;
-
- path_conv real_path (path, PC_SYM_FOLLOW | PC_FULL);
-
- if (real_path.error)
- err = real_path.error;
- else
- {
- err = cygwin_shared->mount.conv_to_posix_path (real_path.get_win32 (), resolved, 0);
- if (err == 0)
- return resolved;
- }
-
- /* FIXME: on error, we are supposed to put the name of the path
- component which could not be resolved into RESOLVED. */
- resolved[0] = '\0';
-
- set_errno (err);
- return NULL;
-}
-
-/* Return non-zero if path is a POSIX path list.
- This is exported to the world as cygwin_foo by cygwin.din.
-
-DOCTOOL-START
-<sect1 id="add-func-cygwin-posix-path-list-p">
- <para>Rather than use a mode to say what the "proper" path list
- format is, we allow any, and give apps the tools they need to
- convert between the two. If a ';' is present in the path list it's
- a Win32 path list. Otherwise, if the first path begins with
- [letter]: (in which case it can be the only element since if it
- wasn't a ';' would be present) it's a Win32 path list. Otherwise,
- it's a POSIX path list.</para>
-</sect1>
-DOCTOOL-END
- */
-
-extern "C"
-int
-cygwin_posix_path_list_p (const char *path)
-{
- int posix_p = ! (strchr (path, ';') || isdrive (path));
- return posix_p;
-}
-
-/* These are used for apps that need to convert env vars like PATH back and
- forth. The conversion is a two step process. First, an upper bound on the
- size of the buffer needed is computed. Then the conversion is done. This
- allows the caller to use alloca if it wants. */
-
-static int
-conv_path_list_buf_size (const char *path_list, int to_posix_p)
-{
- int i, num_elms, max_mount_path_len, size;
- const char *p;
-
- /* The theory is that an upper bound is
- current_size + (num_elms * max_mount_path_len) */
-
- char delim = to_posix_p ? ';' : ':';
- p = path_list;
- for (num_elms = 1; (p = strchr (p, delim)) != NULL; ++num_elms)
- ++p;
-
- /* 7: strlen ("//c") + slop, a conservative initial value */
- for (max_mount_path_len = 7, i = 0; i < cygwin_shared->mount.nmounts; ++i)
- {
- int mount_len = (to_posix_p
- ? cygwin_shared->mount.mount[i].posix_pathlen
- : cygwin_shared->mount.mount[i].native_pathlen);
- if (max_mount_path_len < mount_len)
- max_mount_path_len = mount_len;
- }
-
- /* 100: slop */
- size = strlen (path_list) + (num_elms * max_mount_path_len) + 100;
- return size;
-}
-
-extern "C"
-int
-cygwin_win32_to_posix_path_list_buf_size (const char *path_list)
-{
- return conv_path_list_buf_size (path_list, 1);
-}
-
-extern "C"
-int
-cygwin_posix_to_win32_path_list_buf_size (const char *path_list)
-{
- return conv_path_list_buf_size (path_list, 0);
-}
-
-extern "C"
-int
-cygwin_win32_to_posix_path_list (const char *win32, char *posix)
-{
- conv_path_list (win32, posix, 1);
- return 0;
-}
-
-extern "C"
-int
-cygwin_posix_to_win32_path_list (const char *posix, char *win32)
-{
- conv_path_list (posix, win32, 0);
- return 0;
-}
-
-/* cygwin_split_path: Split a path into directory and file name parts.
- Buffers DIR and FILE are assumed to be big enough.
-
- Examples (path -> `dir' / `file'):
- / -> `/' / `'
- "" -> `.' / `'
- . -> `.' / `.' (FIXME: should this be `.' / `'?)
- .. -> `.' / `..' (FIXME: should this be `..' / `'?)
- foo -> `.' / `foo'
- foo/bar -> `foo' / `bar'
- foo/bar/ -> `foo' / `bar'
- /foo -> `/' / `foo'
- /foo/bar -> `/foo' / `bar'
- c: -> `c:/' / `'
- c:/ -> `c:/' / `'
- c:foo -> `c:/' / `foo'
- c:/foo -> `c:/' / `foo'
- */
-
-extern "C"
-void
-cygwin_split_path (const char *path, char *dir, char *file)
-{
- int dir_started_p = 0;
-
- /* Deal with drives.
- Remember that c:foo <==> c:/foo. */
- if (isdrive (path))
- {
- *dir++ = *path++;
- *dir++ = *path++;
- *dir++ = '/';
- if (! *path)
- {
- *dir = 0;
- *file = 0;
- return;
- }
- if (SLASH_P (*path))
- ++path;
- dir_started_p = 1;
- }
-
- /* Determine if there are trailing slashes and "delete" them if present.
- We pretend as if they don't exist. */
- const char *end = path + strlen (path);
- /* path + 1: keep leading slash. */
- while (end > path + 1 && SLASH_P (end[-1]))
- --end;
-
- /* At this point, END points to one beyond the last character
- (with trailing slashes "deleted"). */
-
- /* Point LAST_SLASH at the last slash (duh...). */
- const char *last_slash;
- for (last_slash = end - 1; last_slash >= path; --last_slash)
- if (SLASH_P (*last_slash))
- break;
-
- if (last_slash == path)
- {
- *dir++ = '/';
- *dir = 0;
- }
- else if (last_slash > path)
- {
- memcpy (dir, path, last_slash - path);
- dir[last_slash - path] = 0;
- }
- else
- {
- if (dir_started_p)
- ; /* nothing to do */
- else
- *dir++ = '.';
- *dir = 0;
- }
-
- memcpy (file, last_slash + 1, end - last_slash - 1);
- file[end - last_slash - 1] = 0;
-}
-
-/********************** String Helper Functions ************************/
-
-#define CHXOR ('a' ^ 'A')
-#define ch_case_eq(ch1, ch2) \
- ({ \
- unsigned char x; \
- !((x = ((unsigned char)ch1 ^ (unsigned char)ch2)) && \
- (x != CHXOR || !isalpha (ch1))); \
- })
-
-/* Return TRUE if two strings match up to length n */
-int __stdcall
-strncasematch (const char *s1, const char *s2, size_t n)
-{
- if (s1 == s2)
- return 1;
-
- n++;
- while (--n && *s1)
- {
- if (!ch_case_eq (*s1, *s2))
- return 0;
- s1++; s2++;
- }
- return !n || *s2 == '\0';
-}
-
-/* Return TRUE if two strings match */
-int __stdcall
-strcasematch (const char *s1, const char *s2)
-{
- if (s1 == s2)
- return 1;
-
- while (*s1)
- {
- if (!ch_case_eq (*s1, *s2))
- return 0;
- s1++; s2++;
- }
- return *s2 == '\0';
-}
-
-char * __stdcall
-strcasestr (const char *searchee, const char *lookfor)
-{
- if (*searchee == 0)
- {
- if (*lookfor)
- return NULL;
- return (char *) searchee;
- }
-
- while (*searchee)
- {
- int i = 0;
- while (1)
- {
- if (lookfor[i] == 0)
- return (char *) searchee;
-
- if (!ch_case_eq (lookfor[i], searchee[i]))
- break;
- lookfor++;
- }
- searchee++;
- }
-
- return NULL;
-}
-
-int __stdcall
-check_null_empty_path (const char *name)
-{
- MEMORY_BASIC_INFORMATION m;
- if (!name || !VirtualQuery (name, &m, sizeof (m)) || (m.State != MEM_COMMIT))
- return EFAULT;
-
- if (!*name)
- return ENOENT;
-
- return 0;
-}