add: methods for getting link information and build scripts for Solaris

SVN: 6964

common/source/c/compile_linux_amd64.sh

 #! /bin/bash
 
-gcc -shared -fPIC unixlink.c -o ../../../libraries/filelink/amd64-Linux/jlink.so
+gcc -shared -fPIC unixlink.c -o amd64-Linux_jlink.so

common/source/c/compile_linux_i386.sh

 #! /bin/bash
 
-gcc -shared unixlink.c -I/usr/java/jdk1.5.0_13/include -I/usr/java/jdk1.5.0_13/include/linux -o ../../../libraries/filelink/i386-Linux/jlink.so
+gcc -shared unixlink.c -I/usr/java/jdk1.5.0_13/include -I/usr/java/jdk1.5.0_13/include/linux -o i386-Linux_jlink.so

common/source/c/compile_macosx.sh

 #! /bin/bash
 
-gcc -bundle unixlink.c -I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers -o "../../../libraries/filelink/i386-Mac OS X/jlink.so"
-
+gcc -bundle unixlink.c -I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers -o "i386-Mac OS X_jlink.so"

common/source/c/compile_solaris_amd64.sh

+#! /bin/bash
+
+gcc -m64 -shared -fPIC -static-libgcc -R/usr/sfw/lib/amd64 unixlink.c -I/usr/java/include/ -I/usr/java/include/solaris -o amd64-SunOS_jlink.so

common/source/c/compile_solaris_x86.sh

+#! /bin/bash
+
+gcc -shared -fPIC -static-libgcc unixlink.c -I/usr/java/include/ -I/usr/java/include/solaris -o x86-SunOS_jlink.so

common/source/c/unixlink.c

 #include <unistd.h>
 #include <errno.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <jni.h>
 
 JNIEXPORT jint JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_hardlink
@@ -8,16 +10,15 @@ JNIEXPORT jint JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_
 {
     const char* pfilename;
     const char* plinktarget;
-    jboolean isCopy;
     int retval;
 
-    pfilename = (char *)(*env)->GetStringUTFChars(env, filename, &isCopy);
-    plinktarget = (char *)(*env)->GetStringUTFChars(env, linktarget, &isCopy);
+    pfilename = (char *)(*env)->GetStringUTFChars(env, filename, NULL);
+    plinktarget = (char *)(*env)->GetStringUTFChars(env, linktarget, NULL);
 
     retval = link(pfilename, plinktarget);
     if (retval < 0)
     {
-        retval = errno;
+        retval = -errno;
     }
 
     (*env)->ReleaseStringUTFChars(env, filename, pfilename);
@@ -31,15 +32,14 @@ JNIEXPORT jint JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_
 {
     const char* pfilename;
     const char* plinktarget;
-    jboolean isCopy;
     int retval;
 
-    pfilename = (char *)(*env)->GetStringUTFChars(env, filename, &isCopy);
-    plinktarget = (char *)(*env)->GetStringUTFChars(env, linktarget, &isCopy);
+    pfilename = (char *)(*env)->GetStringUTFChars(env, filename, NULL);
+    plinktarget = (char *)(*env)->GetStringUTFChars(env, linktarget, NULL);
 
     retval = symlink(pfilename, plinktarget);
     if (retval < 0)    { 
-        retval = errno; 
+        retval = -errno; 
     }
 
     (*env)->ReleaseStringUTFChars(env, filename, pfilename);
@@ -48,7 +48,50 @@ JNIEXPORT jint JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_
    return retval;
 }
 
+JNIEXPORT jint JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_linkinfo(JNIEnv *env, jclass clss, jstring filename, jintArray result)
+{
+    const char* pfilename;
+	struct stat statbuf;
+	jint resultbuf[4];
+    int retval;
+
+    pfilename = (char *)(*env)->GetStringUTFChars(env, filename, NULL);
+	retval = lstat(pfilename, &statbuf);
+    (*env)->ReleaseStringUTFChars(env, filename, pfilename);
+	if (retval < 0)
+	{
+		return -errno;
+	} else
+	{
+		resultbuf[0] = statbuf.st_ino;
+		resultbuf[1] = statbuf.st_nlink;
+		resultbuf[2] = S_ISLNK(statbuf.st_mode);
+		resultbuf[3] = statbuf.st_size;
+		(*env)->SetIntArrayRegion(env, result, 0, 4, resultbuf);
+		return 0;
+	}
+}
+
+JNIEXPORT jstring JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_readlink(JNIEnv *env, jclass clss, jstring linkname, jint linkvallen)
+{
+    const char* plinkname;
+	char plinkvalue[linkvallen + 1];
+    int retval;
+	
+    plinkname = (char *)(*env)->GetStringUTFChars(env, linkname, NULL);
+	retval = readlink(plinkname, plinkvalue, linkvallen);
+    (*env)->ReleaseStringUTFChars(env, linkname, plinkname);
+	if (retval < 0)
+	{
+		return NULL;
+	} else
+	{
+	plinkvalue[linkvallen] = '\0';
+		return (*env)->NewStringUTF(env, plinkvalue);
+	}
+}
+
 JNIEXPORT jstring JNICALL Java_ch_systemsx_cisd_common_utilities_FileLinkUtilities_strerror(JNIEnv *env, jclass clss, jint errnum)
 {
-    return (*env)->NewStringUTF(env, strerror(errnum));
+    return (*env)->NewStringUTF(env, strerror(errnum < 0 ? -errnum : errnum));
 }