[Libguestfs] [PATCH nbdkit 01/13] common/replacements: Replace missing functions using LIBOBJS.
Richard W.M. Jones
rjones at redhat.com
Thu Aug 20 11:37:34 UTC 2020
Especially on Windows, some common functions are missing. Use the
autoconf LIBOBJS mechanism to replace these functions.
This includes replacement functions for:
Function names Implementation Origin
getdelim, getline general purpose NetBSD under a compatible license
openlog, syslog, Win32 written by me
vsyslog
realpath Win32 written by me
strndup general purpose NetBSD under a compatible license
This should do nothing on existing supported platforms. It is only
intended in preparation for porting nbdkit to Windows.
---
configure.ac | 22 +++++++
Makefile.am | 1 +
common/replacements/Makefile.am | 52 +++++++++++++++
common/replacements/win32/Makefile.am | 45 +++++++++++++
server/Makefile.am | 3 +
common/replacements/getline.h | 48 ++++++++++++++
common/replacements/realpath.h | 47 ++++++++++++++
common/replacements/strndup.h | 47 ++++++++++++++
common/replacements/syslog.h | 66 +++++++++++++++++++
server/crypto.c | 2 +-
server/log-syslog.c | 2 +-
server/main.c | 9 +--
server/public.c | 2 +
common/replacements/getdelim.c | 84 +++++++++++++++++++++++++
common/replacements/getline.c | 46 ++++++++++++++
common/replacements/openlog.c | 61 ++++++++++++++++++
common/replacements/realpath.c | 80 +++++++++++++++++++++++
common/replacements/strndup.c | 58 +++++++++++++++++
common/replacements/syslog.c | 61 ++++++++++++++++++
common/replacements/vsyslog.c | 73 +++++++++++++++++++++
common/replacements/win32/nbdkit-cat.mc | 37 +++++++++++
.gitignore | 4 ++
22 files changed, 844 insertions(+), 6 deletions(-)
diff --git a/configure.ac b/configure.ac
index 35384429..41e15b40 100644
--- a/configure.ac
+++ b/configure.ac
@@ -337,6 +337,17 @@ AC_CHECK_FUNCS([\
ppoll \
posix_fadvise])
+dnl Replacement functions that we provide for some platforms.
+AC_CONFIG_LIBOBJ_DIR([common/replacements])
+AC_REPLACE_FUNCS([\
+ getdelim \
+ getline \
+ openlog \
+ realpath \
+ strndup \
+ syslog \
+ vsyslog])
+
dnl Check whether printf("%m") works
AC_CACHE_CHECK([whether the printf family supports %m],
[nbdkit_cv_func_printf_percent_m],
@@ -462,6 +473,15 @@ AS_CASE([$host_os],
)
AC_MSG_RESULT([$is_windows])
AC_SUBST([NO_UNDEFINED_ON_WINDOWS])
+AM_CONDITIONAL([IS_WINDOWS],[test "x$is_windows" = "xyes"])
+
+dnl For Windows, look for the mc/windmc utility.
+dnl XXX Do we need to check for mc.exe as well?
+AS_IF([test "x$is_windows" = "xyes"],[
+ AC_CHECK_TOOLS([MC],[windmc mc],[no])
+ AS_IF([test "x$MC" = "xno"],
+ [AC_MSG_ERROR([mc/windmc utility must be available when compiling for Windows])])
+])
AC_SEARCH_LIBS([getaddrinfo], [network socket])
@@ -1105,6 +1125,8 @@ AC_CONFIG_FILES([Makefile
common/include/Makefile
common/protocol/Makefile
common/regions/Makefile
+ common/replacements/Makefile
+ common/replacements/win32/Makefile
common/utils/Makefile
docs/Makefile
include/Makefile
diff --git a/Makefile.am b/Makefile.am
index 0ca53d64..a9d6d164 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -74,6 +74,7 @@ SUBDIRS = \
include \
common/include \
common/protocol \
+ common/replacements \
common/utils \
server \
$(NULL)
diff --git a/common/replacements/Makefile.am b/common/replacements/Makefile.am
new file mode 100644
index 00000000..e5a5612f
--- /dev/null
+++ b/common/replacements/Makefile.am
@@ -0,0 +1,52 @@
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+SUBDIRS = win32
+
+noinst_LTLIBRARIES = libcompat.la
+# sources should be empty
+libcompat_la_SOURCES =
+libcompat_la_LIBADD = $(LTLIBOBJS)
+
+EXTRA_DIST = \
+ getdelim.c \
+ getline.c \
+ getline.h \
+ openlog.c \
+ realpath.c \
+ realpath.h \
+ strndup.c \
+ strndup.h \
+ syslog.c \
+ syslog.h \
+ vsyslog.c
diff --git a/common/replacements/win32/Makefile.am b/common/replacements/win32/Makefile.am
new file mode 100644
index 00000000..8b91709e
--- /dev/null
+++ b/common/replacements/win32/Makefile.am
@@ -0,0 +1,45 @@
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-cat.mc
+
+if IS_WINDOWS
+
+# Build the message catalog.
+noinst_DATA = MSG00001.bin nbdkit-cat.h nbdkit-cat.rc
+
+$(noinst_DATA): nbdkit-cat.mc
+ rm -f $@
+ $(MC) $<
+
+endif
diff --git a/server/Makefile.am b/server/Makefile.am
index 58b22341..d7150f52 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -84,6 +84,7 @@ nbdkit_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
nbdkit_CFLAGS = \
@@ -99,6 +100,7 @@ nbdkit_LDADD = \
$(DL_LIBS) \
$(top_builddir)/common/protocol/libprotocol.la \
$(top_builddir)/common/utils/libutils.la \
+ $(top_builddir)/common/replacements/libcompat.la \
$(NULL)
nbdkit_LDFLAGS = \
$(PTHREAD_LIBS) \
@@ -147,6 +149,7 @@ test_public_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
test_public_CFLAGS = $(WARNINGS_CFLAGS) $(VALGRIND_CFLAGS)
diff --git a/common/replacements/getline.h b/common/replacements/getline.h
new file mode 100644
index 00000000..6034d85d
--- /dev/null
+++ b/common/replacements/getline.h
@@ -0,0 +1,48 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_GETLINE_H
+#define NBDKIT_GETLINE_H
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef HAVE_GETLINE
+
+ssize_t getline (char **lineptr, size_t *n, FILE *stream);
+ssize_t getdelim (char **lineptr, size_t *n, int delim, FILE *stream);
+
+#endif
+
+#endif /* NBDKIT_GETLINE_H */
diff --git a/common/replacements/realpath.h b/common/replacements/realpath.h
new file mode 100644
index 00000000..f9d32bb4
--- /dev/null
+++ b/common/replacements/realpath.h
@@ -0,0 +1,47 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_REALPATH_H
+#define NBDKIT_REALPATH_H
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef HAVE_REALPATH
+
+char *realpath (const char *path, char *out);
+
+#endif
+
+#endif /* NBDKIT_REALPATH_H */
diff --git a/common/replacements/strndup.h b/common/replacements/strndup.h
new file mode 100644
index 00000000..e8a6d4a6
--- /dev/null
+++ b/common/replacements/strndup.h
@@ -0,0 +1,47 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_STRNDUP_H
+#define NBDKIT_STRNDUP_H
+
+#include <config.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#ifndef HAVE_STRNDUP
+
+char *strndup(const char *s, size_t n);
+
+#endif
+
+#endif /* NBDKIT_STRNDUP_H */
diff --git a/common/replacements/syslog.h b/common/replacements/syslog.h
new file mode 100644
index 00000000..6918a4a3
--- /dev/null
+++ b/common/replacements/syslog.h
@@ -0,0 +1,66 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Replacement for syslog for platforms which lack it. Note this only
+ * implements "just enough syslog" for nbdkit. It's not a general
+ * replacement.
+ */
+
+#ifndef NBDKIT_SYSLOG_H
+#define NBDKIT_SYSLOG_H
+
+#include <config.h>
+
+#ifdef HAVE_SYSLOG_H
+
+#include_next <syslog.h>
+
+#else
+
+#include <stdarg.h>
+
+/* Since the replacement function ignores the priority field, we only
+ * need to define these to any integer.
+ */
+#define LOG_PID 0
+#define LOG_ERR 0
+#define LOG_DAEMON 0
+
+extern void openlog (const char *ident, int option, int facility);
+extern void syslog (int pri, const char *fmt, ...)
+ __attribute__ ((format (printf, 2, 3)));
+extern void vsyslog (int pri, const char *fmt, va_list args)
+ __attribute__ ((format (printf, 2, 0)));
+
+#endif /* !HAVE_SYSLOG_H */
+
+#endif /* NBDKIT_SYSLOG_H */
diff --git a/server/crypto.c b/server/crypto.c
index d291f4e7..0d3d4e8c 100644
--- a/server/crypto.c
+++ b/server/crypto.c
@@ -41,12 +41,12 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
-#include <limits.h>
#include <errno.h>
#include <sys/types.h>
#include <assert.h>
#include "internal.h"
+#include "realpath.h"
#ifdef HAVE_GNUTLS
diff --git a/server/log-syslog.c b/server/log-syslog.c
index fdac45f1..6e9a1bfd 100644
--- a/server/log-syslog.c
+++ b/server/log-syslog.c
@@ -37,9 +37,9 @@
#include <stdarg.h>
#include <string.h>
#include <errno.h>
-#include <syslog.h>
#include "internal.h"
+#include "syslog.h"
/* Tempted to use LOG_FTP instead of LOG_DAEMON! */
static const int PRIORITY = LOG_DAEMON|LOG_ERR;
diff --git a/server/main.c b/server/main.c
index 17c4c324..78da5ee8 100644
--- a/server/main.c
+++ b/server/main.c
@@ -42,7 +42,6 @@
#include <limits.h>
#include <errno.h>
#include <assert.h>
-#include <syslog.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
@@ -60,11 +59,13 @@
#include <dlfcn.h>
#include "ascii-string.h"
-
-#include "internal.h"
+#include "exit-with-parent.h"
#include "nbd-protocol.h"
+#include "strndup.h"
+#include "syslog.h"
+
+#include "internal.h"
#include "options.h"
-#include "exit-with-parent.h"
#ifdef ENABLE_LIBFUZZER
#define main fuzzer_main
diff --git a/server/public.c b/server/public.c
index d10d466e..1f7e1af0 100644
--- a/server/public.c
+++ b/server/public.c
@@ -54,6 +54,8 @@
#include "ascii-ctype.h"
#include "ascii-string.h"
#include "get-current-dir-name.h"
+#include "getline.h"
+#include "realpath.h"
#include "internal.h"
diff --git a/common/replacements/getdelim.c b/common/replacements/getdelim.c
new file mode 100644
index 00000000..97421cb5
--- /dev/null
+++ b/common/replacements/getdelim.c
@@ -0,0 +1,84 @@
+/* $NetBSD: getdelim.c,v 1.2 2015/12/25 20:12:46 joerg Exp $ */
+/* NetBSD-src: getline.c,v 1.2 2014/09/16 17:23:50 christos Exp */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef HAVE_GETDELIM
+
+#include "getline.h"
+
+ssize_t
+getdelim (char **buf, size_t *bufsiz, int delimiter, FILE *fp)
+{
+ char *ptr, *eptr;
+
+ if (*buf == NULL || *bufsiz == 0) {
+ *bufsiz = BUFSIZ;
+ if ((*buf = malloc (*bufsiz)) == NULL)
+ return -1;
+ }
+
+ for (ptr = *buf, eptr = *buf + *bufsiz;;) {
+ int c = fgetc (fp);
+ if (c == -1) {
+ if (feof (fp)) {
+ ssize_t diff = (ssize_t)(ptr - *buf);
+ if (diff != 0) {
+ *ptr = '\0';
+ return diff;
+ }
+ }
+ return -1;
+ }
+ *ptr++ = c;
+ if (c == delimiter) {
+ *ptr = '\0';
+ return ptr - *buf;
+ }
+ if (ptr + 2 >= eptr) {
+ char *nbuf;
+ size_t nbufsiz = *bufsiz * 2;
+ ssize_t d = ptr - *buf;
+ if ((nbuf = realloc (*buf, nbufsiz)) == NULL)
+ return -1;
+ *buf = nbuf;
+ *bufsiz = nbufsiz;
+ eptr = nbuf + nbufsiz;
+ ptr = nbuf + d;
+ }
+ }
+}
+
+#endif
diff --git a/common/replacements/getline.c b/common/replacements/getline.c
new file mode 100644
index 00000000..e9caf496
--- /dev/null
+++ b/common/replacements/getline.c
@@ -0,0 +1,46 @@
+/* $NetBSD: getline.c,v 1.2 2015/12/25 20:12:46 joerg Exp $ */
+/* NetBSD-src: getline.c,v 1.2 2014/09/16 17:23:50 christos Exp */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <config.h>
+#include <stdio.h>
+
+#ifndef HAVE_GETLINE
+
+#include "getline.h"
+
+ssize_t
+getline (char **buf, size_t *bufsiz, FILE *fp)
+{
+ return getdelim (buf, bufsiz, '\n', fp);
+}
+
+#endif
diff --git a/common/replacements/openlog.c b/common/replacements/openlog.c
new file mode 100644
index 00000000..1081d319
--- /dev/null
+++ b/common/replacements/openlog.c
@@ -0,0 +1,61 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#ifndef HAVE_OPENLOG_H
+
+#include "syslog.h"
+
+#ifdef WIN32
+
+/* Replacement openlog for Win32. */
+
+#include <windows.h>
+
+HANDLE event_source = INVALID_HANDLE_VALUE;
+
+void
+openlog (const char *ident, int option, int facility)
+{
+ event_source = RegisterEventSource (NULL, ident);
+}
+
+#else /* !WIN32 */
+#error "no replacement openlog is available on this platform"
+#endif
+
+#endif /* !HAVE_SYSLOG_H */
diff --git a/common/replacements/realpath.c b/common/replacements/realpath.c
new file mode 100644
index 00000000..4562e8c3
--- /dev/null
+++ b/common/replacements/realpath.c
@@ -0,0 +1,80 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Replacement for realpath for platforms which lack this function. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#ifndef HAVE_REALPATH
+
+#include "realpath.h"
+
+#ifdef WIN32
+
+/* Replacement realpath for Win32.
+ *
+ * Note this is not thread-safe, but should be fine for all the
+ * uses in the server and ordinary plugins.
+ */
+
+#include <windows.h>
+
+char *
+realpath (const char *path, char *out)
+{
+ TCHAR buf[MAX_PATH];
+ int r;
+
+ r = GetFullPathNameA (path, MAX_PATH, buf, NULL);
+ if (r == 0) {
+ errno = GetLastError ();
+ return NULL;
+ }
+
+ out = malloc (r + 1);
+ if (out == NULL)
+ return NULL;
+ memcpy (out, buf, r);
+ out[r] = '\0';
+
+ return out;
+}
+
+#else /* !WIN32 */
+#error "no replacement realpath is available on this platform"
+#endif
+
+#endif /* !HAVE_REALPATH */
diff --git a/common/replacements/strndup.c b/common/replacements/strndup.c
new file mode 100644
index 00000000..976a25f4
--- /dev/null
+++ b/common/replacements/strndup.c
@@ -0,0 +1,58 @@
+/* $NetBSD: strndup.c,v 1.4 2007/07/03 12:11:09 nakayama Exp $ */
+
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $NetBSD: strndup.c,v 1.4 2007/07/03 12:11:09 nakayama Exp $ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef HAVE_STRNDUP
+
+char *
+strndup (const char *str, size_t n)
+{
+ size_t len;
+ char *copy;
+
+ for (len = 0; len < n && str[len]; len++)
+ continue;
+
+ if (!(copy = malloc(len + 1)))
+ return NULL;
+ memcpy (copy, str, len);
+ copy[len] = '\0';
+ return copy;
+}
+
+#endif /* !HAVE_STRNDUP */
diff --git a/common/replacements/syslog.c b/common/replacements/syslog.c
new file mode 100644
index 00000000..89ef73a7
--- /dev/null
+++ b/common/replacements/syslog.c
@@ -0,0 +1,61 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#ifndef HAVE_SYSLOG_H
+
+#include "syslog.h"
+
+#ifdef WIN32
+
+/* Replacement syslog for Win32. */
+
+void
+syslog (int pri, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start (args, fmt);
+ vsyslog (pri, fmt, args);
+ va_end (args);
+}
+
+#else /* !WIN32 */
+#error "no replacement syslog is available on this platform"
+#endif
+
+#endif /* !HAVE_SYSLOG_H */
diff --git a/common/replacements/vsyslog.c b/common/replacements/vsyslog.c
new file mode 100644
index 00000000..d1ab267e
--- /dev/null
+++ b/common/replacements/vsyslog.c
@@ -0,0 +1,73 @@
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#ifndef HAVE_SYSLOG_H
+
+#include "syslog.h"
+
+#ifdef WIN32
+
+/* Replacement vsyslog for Win32. */
+
+#include <windows.h>
+
+#include "win32/nbdkit-cat.h"
+
+extern HANDLE event_source;
+
+void
+vsyslog (int pri, const char *fmt, va_list args)
+{
+ char *str;
+ const char *strs[1];
+
+ if (vasprintf (&str, fmt, args) == -1)
+ return;
+ strs[0] = str;
+
+ ReportEventA (event_source, EVENTLOG_ERROR_TYPE, 0,
+ NBDKIT_SYSLOG_ERROR, NULL, 1, 0, strs, NULL);
+
+ free (str);
+}
+
+#else /* !WIN32 */
+#error "no replacement vsyslog is available on this platform"
+#endif
+
+#endif /* !HAVE_SYSLOG_H */
diff --git a/common/replacements/win32/nbdkit-cat.mc b/common/replacements/win32/nbdkit-cat.mc
new file mode 100644
index 00000000..dc43ad01
--- /dev/null
+++ b/common/replacements/win32/nbdkit-cat.mc
@@ -0,0 +1,37 @@
+;// nbdkit
+;// Copyright (C) 2019-2020 Red Hat Inc.
+;//
+;// Redistribution and use in source and binary forms, with or without
+;// modification, are permitted provided that the following conditions are
+;// met:
+;//
+;// * Redistributions of source code must retain the above copyright
+;// notice, this list of conditions and the following disclaimer.
+;//
+;// * Redistributions in binary form must reproduce the above copyright
+;// notice, this list of conditions and the following disclaimer in the
+;// documentation and/or other materials provided with the distribution.
+;//
+;// * Neither the name of Red Hat nor the names of its contributors may be
+;// used to endorse or promote products derived from this software without
+;// specific prior written permission.
+;//
+;// THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+;// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+;// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+;// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+;// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+;// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+;// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+;// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+;// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+;// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+;// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+;// SUCH DAMAGE.
+
+MessageId=1
+Severity=Error
+SymbolicName=NBDKIT_SYSLOG_ERROR
+Language=English
+%1
+.
diff --git a/.gitignore b/.gitignore
index 2c463909..ca36d9c2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,10 @@ plugins/*/*.3
/common/include/test-tvdiff
/common/protocol/generate-protostrings.sh
/common/protocol/protostrings.c
+/common/replacements/libcompat.a
+/common/replacements/win32/MSG00001.bin
+/common/replacements/win32/nbdkit-cat.h
+/common/replacements/win32/nbdkit-cat.rc
/common/utils/test-quotes
/common/utils/test-vector
/compile
--
2.27.0
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