port to Android

CHANGES

@@ -53,6 +53,10 @@ corrections:
 	Fixed by providing temporary DH parameters. Thanks to Philip Rowlands
 	for drawing my attention to this issue.
 
+porting:
+	Cedril Priscal ported socat to Android (using Googles cross compiler).
+	The port includes the socat_buildscript_for_android.sh script
+
 ####################### V 1.7.1.3:
 
 security:

config.h.in

@@ -477,6 +477,10 @@
 /* Define if you have the /proc/$$/fd directories */
 #undef HAVE_PROC_DIR_FD
 
+#undef HAVE_SETGRENT
+#undef HAVE_GETGRENT
+#undef HAVE_ENDGRENT
+
 #undef WITH_HELP
 #undef WITH_STDIO
 #undef WITH_FDNUM

configure.in

@@ -80,6 +80,8 @@ AC_CHECK_HEADERS(sys/utsname.h sys/select.h sys/file.h)
 AC_CHECK_HEADERS(util.h libutil.h sys/stropts.h regex.h)
 AC_CHECK_HEADERS(linux/fs.h linux/ext2_fs.h)
 
+dnl Checks for setgrent, getgrent and endgrent.
+AC_CHECK_FUNCS(setgrent getgrent endgrent)
 
 dnl Link libresolv if necessary (for Mac OS X)
 AC_SEARCH_LIBS([res_9_init], [resolv])

socat_buildscript_for_android.sh

@@ -0,0 +1,56 @@
+#!/bin/sh
+
+# Customize these parameters according to your environment
+ANDROID_NDK="${HOME}/bin/android-ndk-r6b"
+
+# Check for parameters
+if [ ! -d "${ANDROID_NDK}" ]; then
+ echo "Android NDK not found in ${ANDROID_NDK}, please edit $0 to fix it."
+ exit 1
+fi
+
+if [ ! -e "${ANDROID_NDK}/build/tools/make-standalone-toolchain.sh" ]; then
+ echo "Your Android NDK is not compatible (make-standalone-toolchain.sh not found)."
+ echo "Android NDK r6b is known to work."
+ exit 1
+fi
+
+# Extract the Android toolchain from NDK
+ANDROID_PLATFORM="android-3"
+ROOT="`pwd`"
+OUT="${ROOT}/out"
+${ANDROID_NDK}/build/tools/make-standalone-toolchain.sh \
+ --ndk-dir="${ANDROID_NDK}" \
+ --platform="${ANDROID_PLATFORM}" \
+ --install-dir="${OUT}/toolchain" \
+ || exit 1
+# Remove resolv.h because it is quite unusable as is
+rm ${OUT}/toolchain/sysroot/usr/include/resolv.h
+
+# Create configure script
+cd ${ROOT}
+autoconf || exit 1
+
+# Create config.h and Makefile
+cd ${OUT}
+${ROOT}/configure \
+ --host \
+ --disable-openssl \
+ --disable-unix \
+ CC="${OUT}/toolchain/bin/arm-linux-androideabi-gcc" \
+ || exit 1
+
+# Replace misconfigured values in config.h
+mv config.h config.old
+cat config.old \
+ | sed 's/CRDLY_SHIFT/CRDLY_SHIFT 9/' \
+ | sed 's/TABDLY_SHIFT/TABDLY_SHIFT 11/' \
+ | sed 's/CSIZE_SHIFT/CSIZE_SHIFT 4/' \
+ > config.h
+
+# Compile
+make socat || exit 1
+
+# Done
+echo "Build finished, socat has been generated successfuly in out/socat"
+

sysutils.c

@@ -412,6 +412,7 @@ char *sockaddr_inet6_info(const struct sockaddr_in6 *sa, char *buff, size_t blen
 }
 #endif /* WITH_IP6 */
 
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 /* fill the list with the supplementary group ids of user.
    caller passes size of list in ngroups, function returns number of groups in
    ngroups.
@@ -438,6 +439,7 @@ int getusergroups(const char *user, gid_t *list, size_t *ngroups) {
    *ngroups = i;
    return 0;
 }
+#endif
 
 #if !HAVE_HSTRERROR
 const char *hstrerror(int err) {

sysutils.h

@@ -73,7 +73,9 @@ extern const char *inet_ntop(int pf, const void *binaddr,
 			     char *addrtext, socklen_t textlen);
 #endif
 
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 extern int getusergroups(const char *user, gid_t *list, size_t *ngroups);
+#endif
 
 #if !HAVE_HSTRERROR
 extern const char *hstrerror(int err);

xio-process.c

@@ -16,7 +16,9 @@ const struct optdesc opt_setuid_early= { "setuid-early",NULL,  OPT_SETUID_EARLY,
 const struct optdesc opt_setuid      = { "setuid",      NULL,  OPT_SETUID,      GROUP_PROCESS, PH_LATE2,    TYPE_UIDT, OFUNC_SPEC };
 const struct optdesc opt_substuser_early   = { "substuser-early", "su-e",  OPT_SUBSTUSER_EARLY,   GROUP_PROCESS, PH_EARLY,  TYPE_UIDT, OFUNC_SPEC };
 const struct optdesc opt_substuser   = { "substuser", "su",  OPT_SUBSTUSER,   GROUP_PROCESS, PH_LATE2,  TYPE_UIDT, OFUNC_SPEC };
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 const struct optdesc opt_substuser_delayed = { "substuser-delayed", "su-d", OPT_SUBSTUSER_DELAYED,   GROUP_PROCESS, PH_INIT,  TYPE_UIDT, OFUNC_SPEC };
+#endif
 const struct optdesc opt_chroot_early = { "chroot-early", NULL, OPT_CHROOT_EARLY, GROUP_PROCESS, PH_EARLY, TYPE_STRING, OFUNC_SPEC };
 const struct optdesc opt_chroot       = { "chroot",       NULL, OPT_CHROOT,       GROUP_PROCESS, PH_LATE, TYPE_STRING, OFUNC_SPEC };
 const struct optdesc opt_setsid  = { "setsid",    "sid", OPT_SETSID,     GROUP_PROCESS,   PH_LATE, TYPE_BOOL,     OFUNC_SPEC };

xio-process.h

@@ -11,7 +11,9 @@ extern const struct optdesc opt_setuid_early;
 extern const struct optdesc opt_setuid;
 extern const struct optdesc opt_substuser_early;
 extern const struct optdesc opt_substuser;
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 extern const struct optdesc opt_substuser_delayed;
+#endif
 extern const struct optdesc opt_chroot_early;
 extern const struct optdesc opt_chroot;
 extern const struct optdesc opt_setsid;

xio-pty.c

@@ -78,7 +78,9 @@ static int xioopen_pty(int argc, const char *argv[], struct opt *opts, int xiofl
    useptmx = true;
 #  endif /* !HAVE_OPENPTY */
 #else
+# if HAVE_OPENPTY
    useopenpty = true;
+# endif /* HAVE_OPENPTY */
 #endif /* ! (defined(HAVE_DEV_PTMX) || defined(HAVE_DEV_PTC)) */
 
 #if HAVE_POLL

xioopts.c

@@ -1458,10 +1458,14 @@ const struct optname optionnames[] = {
 	IF_ANY    ("streams-i-push",	&opt_streams_i_push)
 #endif
 	IF_ANY    ("su",	&opt_substuser)
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 	IF_ANY    ("su-d",	&opt_substuser_delayed)
+#endif
 	IF_ANY    ("su-e",	&opt_substuser_early)
 	IF_ANY    ("substuser",	&opt_substuser)
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 	IF_ANY    ("substuser-delayed",	&opt_substuser_delayed)
+#endif
 	IF_ANY    ("substuser-early",	&opt_substuser_early)
 	IF_TERMIOS("susp",	&opt_vsusp)
 #ifdef VSWTC
@@ -3330,6 +3334,7 @@ int applyopts(int fd, struct opt *opts, enum e_phase phase) {
 #endif
 	    }
 	    break;
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
 	 case OPT_SUBSTUSER_DELAYED:
 	    {
 	       struct passwd *pwd;
@@ -3363,6 +3368,7 @@ int applyopts(int fd, struct opt *opts, enum e_phase phase) {
 	       delayeduser = true;
 	    }
 	    break;
+#endif
 	 case OPT_CHROOT_EARLY:
 	 case OPT_CHROOT:
 	    if (Chroot(opt->value.u_string) < 0) {

xioopts.h

@@ -703,7 +703,9 @@ enum e_optcode {
 #  undef ENABLE_OPTCODE
    OPT_SUBSTUSER_EARLY,
    OPT_SUBSTUSER,
+#if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
    OPT_SUBSTUSER_DELAYED,
+#endif
    OPT_SYMBOLIC_LINK,	/* with pty */
 #ifdef TABDLY
 #  ifdef TAB0