diff options
author | Mark H Weaver <mhw@netris.org> | 2014-02-26 22:15:13 -0500 |
---|---|---|
committer | Mark H Weaver <mhw@netris.org> | 2014-02-27 22:34:30 -0500 |
commit | 3243fffcc19144fc0b30e983c3e50d1d1fc19ef4 (patch) | |
tree | 7fe5533d4b47c7dea583170b42fb01ed91e68d11 /lib | |
parent | caa3d99be9932077230303a5571697f7d45f3da2 (diff) | |
download | guile-3243fffcc19144fc0b30e983c3e50d1d1fc19ef4.tar.gz |
Import Gnulib modules: link, fsync, readlink, rename, mkdir, rmdir, unistd.
* lib/fsync.c:
* lib/link.c:
* lib/mkdir.c:
* lib/strdup.c:
* m4/fsync.m4:
* m4/link.m4:
* m4/mkdir.m4:
* m4/strdup.m4: New files.
* lib/Makefile.am
* m4/gnulib-cache.m4
* m4/gnulib-comp.m4: Add modules.
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Makefile.am | 38 | ||||
-rw-r--r-- | lib/fsync.c | 83 | ||||
-rw-r--r-- | lib/link.c | 211 | ||||
-rw-r--r-- | lib/mkdir.c | 93 | ||||
-rw-r--r-- | lib/strdup.c | 54 |
5 files changed, 478 insertions, 1 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am index 18cb5e3bb..8b643c72b 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -21,7 +21,7 @@ # the same distribution terms as the rest of that program. # # Generated by gnulib-tool. -# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect copysign dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isfinite isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p lstat maintainer-makefile malloc-gnu malloca mkstemp nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar +# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect copysign dirfd duplocale environ extensions flock floor fpieee frexp fstat fsync full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isfinite isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring link listen localcharset locale log1p lstat maintainer-makefile malloc-gnu malloca mkdir mkstemp nl_langinfo nproc open pipe-posix pipe2 poll putenv readlink recv recvfrom regex rename rmdir select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc unistd verify vsnprintf warnings wchar AUTOMAKE_OPTIONS = 1.9.6 gnits subdir-objects @@ -567,6 +567,15 @@ EXTRA_libgnu_la_SOURCES += fstat.c ## end gnulib module fstat +## begin gnulib module fsync + + +EXTRA_DIST += fsync.c + +EXTRA_libgnu_la_SOURCES += fsync.c + +## end gnulib module fsync + ## begin gnulib module full-read libgnu_la_SOURCES += full-read.h full-read.c @@ -905,6 +914,15 @@ EXTRA_DIST += libunistring.valgrind ## end gnulib module libunistring +## begin gnulib module link + + +EXTRA_DIST += link.c + +EXTRA_libgnu_la_SOURCES += link.c + +## end gnulib module link + ## begin gnulib module listen @@ -1417,6 +1435,15 @@ EXTRA_libgnu_la_SOURCES += memchr.c ## end gnulib module memchr +## begin gnulib module mkdir + + +EXTRA_DIST += mkdir.c + +EXTRA_libgnu_la_SOURCES += mkdir.c + +## end gnulib module mkdir + ## begin gnulib module mkstemp @@ -2336,6 +2363,15 @@ EXTRA_DIST += stdlib.in.h ## end gnulib module stdlib +## begin gnulib module strdup-posix + + +EXTRA_DIST += strdup.c + +EXTRA_libgnu_la_SOURCES += strdup.c + +## end gnulib module strdup-posix + ## begin gnulib module streq diff --git a/lib/fsync.c b/lib/fsync.c new file mode 100644 index 000000000..99475ff65 --- /dev/null +++ b/lib/fsync.c @@ -0,0 +1,83 @@ +/* Emulate fsync on platforms that lack it, primarily Windows and + cross-compilers like MinGW. + + This is derived from sqlite3 sources. + http://www.sqlite.org/cvstrac/rlog?f=sqlite/src/os_win.c + http://www.sqlite.org/copyright.html + + Written by Richard W.M. Jones <rjones.at.redhat.com> + + Copyright (C) 2008-2014 Free Software Foundation, Inc. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> +#include <unistd.h> + +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + +/* FlushFileBuffers */ +# define WIN32_LEAN_AND_MEAN +# include <windows.h> + +# include <errno.h> + +/* Get _get_osfhandle. */ +# include "msvc-nothrow.h" + +int +fsync (int fd) +{ + HANDLE h = (HANDLE) _get_osfhandle (fd); + DWORD err; + + if (h == INVALID_HANDLE_VALUE) + { + errno = EBADF; + return -1; + } + + if (!FlushFileBuffers (h)) + { + /* Translate some Windows errors into rough approximations of Unix + * errors. MSDN is useless as usual - in this case it doesn't + * document the full range of errors. + */ + err = GetLastError (); + switch (err) + { + case ERROR_ACCESS_DENIED: + /* For a read-only handle, fsync should succeed, even though we have + no way to sync the access-time changes. */ + return 0; + + /* eg. Trying to fsync a tty. */ + case ERROR_INVALID_HANDLE: + errno = EINVAL; + break; + + default: + errno = EIO; + } + return -1; + } + + return 0; +} + +#else /* !Windows */ + +# error "This platform lacks fsync function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib." + +#endif /* !Windows */ diff --git a/lib/link.c b/lib/link.c new file mode 100644 index 000000000..9db1f8cef --- /dev/null +++ b/lib/link.c @@ -0,0 +1,211 @@ +/* Emulate link on platforms that lack it, namely native Windows platforms. + + Copyright (C) 2009-2014 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +#include <unistd.h> + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> + +#if !HAVE_LINK +# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + +# define WIN32_LEAN_AND_MEAN +# include <windows.h> + +/* CreateHardLink was introduced only in Windows 2000. */ +typedef BOOL (WINAPI * CreateHardLinkFuncType) (LPCTSTR lpFileName, + LPCTSTR lpExistingFileName, + LPSECURITY_ATTRIBUTES lpSecurityAttributes); +static CreateHardLinkFuncType CreateHardLinkFunc = NULL; +static BOOL initialized = FALSE; + +static void +initialize (void) +{ + HMODULE kernel32 = GetModuleHandle ("kernel32.dll"); + if (kernel32 != NULL) + { + CreateHardLinkFunc = + (CreateHardLinkFuncType) GetProcAddress (kernel32, "CreateHardLinkA"); + } + initialized = TRUE; +} + +int +link (const char *file1, const char *file2) +{ + char *dir; + size_t len1 = strlen (file1); + size_t len2 = strlen (file2); + if (!initialized) + initialize (); + if (CreateHardLinkFunc == NULL) + { + /* System does not support hard links. */ + errno = EPERM; + return -1; + } + /* Reject trailing slashes on non-directories; mingw does not + support hard-linking directories. */ + if ((len1 && (file1[len1 - 1] == '/' || file1[len1 - 1] == '\\')) + || (len2 && (file2[len2 - 1] == '/' || file2[len2 - 1] == '\\'))) + { + struct stat st; + if (stat (file1, &st) == 0 && S_ISDIR (st.st_mode)) + errno = EPERM; + else + errno = ENOTDIR; + return -1; + } + /* CreateHardLink("b/.","a",NULL) creates file "b", so we must check + that dirname(file2) exists. */ + dir = strdup (file2); + if (!dir) + return -1; + { + struct stat st; + char *p = strchr (dir, '\0'); + while (dir < p && (*--p != '/' && *p != '\\')); + *p = '\0'; + if (p != dir && stat (dir, &st) == -1) + { + int saved_errno = errno; + free (dir); + errno = saved_errno; + return -1; + } + free (dir); + } + /* Now create the link. */ + if (CreateHardLinkFunc (file2, file1, NULL) == 0) + { + /* It is not documented which errors CreateHardLink() can produce. + * The following conversions are based on tests on a Windows XP SP2 + * system. */ + DWORD err = GetLastError (); + switch (err) + { + case ERROR_ACCESS_DENIED: + errno = EACCES; + break; + + case ERROR_INVALID_FUNCTION: /* fs does not support hard links */ + errno = EPERM; + break; + + case ERROR_NOT_SAME_DEVICE: + errno = EXDEV; + break; + + case ERROR_PATH_NOT_FOUND: + case ERROR_FILE_NOT_FOUND: + errno = ENOENT; + break; + + case ERROR_INVALID_PARAMETER: + errno = ENAMETOOLONG; + break; + + case ERROR_TOO_MANY_LINKS: + errno = EMLINK; + break; + + case ERROR_ALREADY_EXISTS: + errno = EEXIST; + break; + + default: + errno = EIO; + } + return -1; + } + + return 0; +} + +# else /* !Windows */ + +# error "This platform lacks a link function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib." + +# endif /* !Windows */ +#else /* HAVE_LINK */ + +# undef link + +/* Create a hard link from FILE1 to FILE2, working around platform bugs. */ +int +rpl_link (char const *file1, char const *file2) +{ + size_t len1; + size_t len2; + struct stat st; + + /* Don't allow IRIX to dereference dangling file2 symlink. */ + if (!lstat (file2, &st)) + { + errno = EEXIST; + return -1; + } + + /* Reject trailing slashes on non-directories. */ + len1 = strlen (file1); + len2 = strlen (file2); + if ((len1 && file1[len1 - 1] == '/') + || (len2 && file2[len2 - 1] == '/')) + { + /* Let link() decide whether hard-linking directories is legal. + If stat() fails, then link() should fail for the same reason + (although on Solaris 9, link("file/","oops") mistakenly + succeeds); if stat() succeeds, require a directory. */ + if (stat (file1, &st)) + return -1; + if (!S_ISDIR (st.st_mode)) + { + errno = ENOTDIR; + return -1; + } + } + else + { + /* Fix Cygwin 1.5.x bug where link("a","b/.") creates file "b". */ + char *dir = strdup (file2); + char *p; + if (!dir) + return -1; + /* We already know file2 does not end in slash. Strip off the + basename, then check that the dirname exists. */ + p = strrchr (dir, '/'); + if (p) + { + *p = '\0'; + if (stat (dir, &st) == -1) + { + int saved_errno = errno; + free (dir); + errno = saved_errno; + return -1; + } + } + free (dir); + } + return link (file1, file2); +} +#endif /* HAVE_LINK */ diff --git a/lib/mkdir.c b/lib/mkdir.c new file mode 100644 index 000000000..f1b802b57 --- /dev/null +++ b/lib/mkdir.c @@ -0,0 +1,93 @@ +/* On some systems, mkdir ("foo/", 0700) fails because of the trailing + slash. On those systems, this wrapper removes the trailing slash. + + Copyright (C) 2001, 2003, 2006, 2008-2014 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* written by Jim Meyering */ + +#include <config.h> + +/* Specification. */ +#include <sys/stat.h> + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "dirname.h" + +/* Disable the definition of mkdir to rpl_mkdir (from the <sys/stat.h> + substitute) in this file. Otherwise, we'd get an endless recursion. */ +#undef mkdir + +/* mingw's _mkdir() function has 1 argument, but we pass 2 arguments. + Additionally, it declares _mkdir (and depending on compile flags, an + alias mkdir), only in the nonstandard includes <direct.h> and <io.h>, + which are included in the <sys/stat.h> override. */ +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +# define mkdir(name,mode) _mkdir (name) +# define maybe_unused _GL_UNUSED +#else +# define maybe_unused /* empty */ +#endif + +/* This function is required at least for NetBSD 1.5.2. */ + +int +rpl_mkdir (char const *dir, mode_t mode maybe_unused) +{ + int ret_val; + char *tmp_dir; + size_t len = strlen (dir); + + if (len && dir[len - 1] == '/') + { + tmp_dir = strdup (dir); + if (!tmp_dir) + { + /* Rather than rely on strdup-posix, we set errno ourselves. */ + errno = ENOMEM; + return -1; + } + strip_trailing_slashes (tmp_dir); + } + else + { + tmp_dir = (char *) dir; + } +#if FUNC_MKDIR_DOT_BUG + /* Additionally, cygwin 1.5 mistakenly creates a directory "d/./". */ + { + char *last = last_component (tmp_dir); + if (*last == '.' && (last[1] == '\0' + || (last[1] == '.' && last[2] == '\0'))) + { + struct stat st; + if (stat (tmp_dir, &st) == 0) + errno = EEXIST; + return -1; + } + } +#endif /* FUNC_MKDIR_DOT_BUG */ + + ret_val = mkdir (tmp_dir, mode); + + if (tmp_dir != dir) + free (tmp_dir); + + return ret_val; +} diff --git a/lib/strdup.c b/lib/strdup.c new file mode 100644 index 000000000..bde582927 --- /dev/null +++ b/lib/strdup.c @@ -0,0 +1,54 @@ +/* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2014 Free Software + Foundation, Inc. + + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License along + with this program; if not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _LIBC +# include <config.h> +#endif + +/* Get specification. */ +#include <string.h> + +#include <stdlib.h> + +#undef __strdup +#ifdef _LIBC +# undef strdup +#endif + +#ifndef weak_alias +# define __strdup strdup +#endif + +/* Duplicate S, returning an identical malloc'd string. */ +char * +__strdup (const char *s) +{ + size_t len = strlen (s) + 1; + void *new = malloc (len); + + if (new == NULL) + return NULL; + + return (char *) memcpy (new, s, len); +} +#ifdef libc_hidden_def +libc_hidden_def (__strdup) +#endif +#ifdef weak_alias +weak_alias (__strdup, strdup) +#endif |