File man-db-2.7.1-zio.dif of Package man.31685
---
config.h.in | 3 ++
configure.ac | 52 ++++++++++++++++++++++++++++++++++++++++++++
lib/decompress.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 120 insertions(+)
--- config.h.in
+++ config.h.in 2016-12-15 14:07:41.579217715 +0000
@@ -740,6 +740,9 @@
/* Define to 1 if you have the `z' library (-lz). */
#undef HAVE_LIBZ
+/* Define to 1 if you have libzio for opening compressed manuals */
+#undef HAVE_ZIO
+
/* Define to 1 if you have the <linewrap.h> header file. */
#undef HAVE_LINEWRAP_H
--- configure.ac
+++ configure.ac 2016-12-15 14:07:41.579217715 +0000
@@ -32,6 +32,18 @@ MAN_ARG_DEVICE
MAN_ARG_DB
MAN_ARG_CONFIG_FILE
MAN_ARG_SECTIONS
+AC_ARG_WITH([zio],
+[AS_HELP_STRING([--with-zio=LIBRARY], [use zlib/libbz2 wrapper library LIBRARY (libzio)])],
+ [if test -z "$withval" -o "$withval" = "yes"
+ then
+ zio=libzio
+ elif test "$withval" = "no"
+ then
+ AC_MSG_ERROR(--with-zio requires an argument)
+ else
+ zio=$withval
+ fi],
+ [: ${zio=no}])
MAN_ARG_AUTOMATIC_CREATE
MAN_ARG_AUTOMATIC_UPDATE
MAN_ARG_CATS
@@ -321,6 +333,46 @@ AC_SUBST([unlzma])
AC_SUBST([unxz])
AC_SUBST([unlzip])
MAN_COMPRESS_LIB([z], [gzopen])
+dnl Check for zlib and libbz2 libraries to use this together
+dnl with SUSE's libzio to open compressed info files.
+dnl
+if test "$zio" = "no" || test -n "$zio"
+then
+ AC_CHECK_HEADER(zio.h,[
+ for lib in ${zio#lib} zio
+ do
+ AC_CHECK_LIB($lib, fzopen, [LIBS="-l$lib $LIBS"; am_cv_libzio=yes])
+ done
+ ])
+ if test "$am_cv_libzio" = yes; then
+ AC_DEFINE([COMP_SRC],[],[Define if you have compressors and want to support compressed cat files.])
+ AC_DEFINE([HAVE_ZIO],[],[Define to 1 if you have libzio for opening compressed manuals])
+ AC_CHECK_HEADER(zlib.h,[
+ for lib in z gz
+ do
+ AC_CHECK_LIB($lib, gzopen, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
+ done
+ ])
+ AC_CHECK_HEADER(bzlib.h,[
+ for lib in bz2 bzip2
+ do
+ AC_CHECK_LIB($lib, BZ2_bzopen, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
+ done
+ ])
+ AC_CHECK_HEADER(lzmadec.h, [
+ for lib in lzma lzmadec
+ do
+ AC_CHECK_LIB($lib, lzmadec_open, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
+ done
+ ])
+ AC_CHECK_HEADER(lzma.h, [
+ for lib in lzma
+ do
+ AC_CHECK_LIB($lib, lzma_easy_encoder, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
+ done
+ ])
+ fi
+fi
dnl To add more decompressors just follow the scheme above.
# Check for various header files and associated libraries.
--- lib/decompress.c
+++ lib/decompress.c 2016-12-15 14:07:41.579217715 +0000
@@ -38,6 +38,10 @@
#include "xvasprintf.h"
+#ifdef HAVE_ZIO
+# include "zio.h"
+#endif /* HAVE_ZIO */
+
#include "manconfig.h"
#include "comp_src.h"
#include "pipeline.h"
@@ -68,6 +72,32 @@ static void decompress_zlib (void *data
#endif /* HAVE_LIBZ */
+#ifdef HAVE_ZIO
+
+static void decompress_zio (void *data)
+{
+ const char *what = (const char*)data;
+ FILE *file;
+
+ file = fdzopen(dup (fileno (stdin)), "r", what);
+ if (!file)
+ return;
+
+ for (;;) {
+ char buffer[4096];
+ int r = fread(buffer, sizeof(char), sizeof(buffer), file);
+ if (r <= 0)
+ break;
+ if (fwrite (buffer, 1, (size_t) r, stdout) < (size_t) r)
+ break;
+ }
+
+ fclose(file);
+ return;
+}
+
+#endif /* HAVE_ZIO */
+
pipeline *decompress_open (const char *filename)
{
pipecmd *cmd;
@@ -82,6 +112,37 @@ pipeline *decompress_open (const char *f
if (stat (filename, &st) < 0 || S_ISDIR (st.st_mode))
return NULL;
+#ifdef HAVE_ZIO
+ ext = strrchr (filename, '.');
+ if (ext) {
+ const char *opt;
+ char *name;
+
+ if (STREQ (ext, ".gz"))
+ opt = "g";
+ else if (STREQ (ext, ".z"))
+ opt = "z";
+ else if (STREQ (ext, ".bz2"))
+ opt = "b";
+ else if (STREQ (ext, ".xz"))
+ opt = "x";
+ else if (STREQ (ext, ".lzma"))
+ opt = "l";
+ else if (STREQ (ext, ".Z"))
+ opt = "Z";
+ else
+ goto nozio;
+
+ /* informational only; no shell quoting concerns */
+ name = appendstr (NULL, "libzio < ", filename, NULL);
+ cmd = pipecmd_new_function (name, &decompress_zio, NULL,
+ opt);
+ free (name);
+ p = pipeline_new_commands (cmd, NULL);
+ goto got_pipeline;
+ }
+#endif /* HAVE_ZIO */
+
#ifdef HAVE_LIBZ
filename_len = strlen (filename);
if (filename_len > 3 && STREQ (filename + filename_len - 3, ".gz")) {
@@ -95,7 +156,11 @@ pipeline *decompress_open (const char *f
}
#endif /* HAVE_LIBZ */
+#ifdef HAVE_ZIO
+nozio:
+#else
ext = strrchr (filename, '.');
+#endif /* HAVE_LIBZ */
if (ext) {
++ext;
