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#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dlfcn.h>
#include "pdj.h"
int getuglylibpath(char *path) {
char buffer[BUFFER_SIZE];
FILE *f;
sprintf(buffer, "/proc/%d/maps", getpid());
f = fopen(buffer, "r");
if ( f == NULL ) {
perror("pdj: unable to map :");
strcpy(path, ".");
return 1;
}
while(!feof(f)) {
fgets(buffer, BUFFER_SIZE-1, f);
if ( strstr(buffer, "pdj.pd_linux") != NULL ) {
buffer[strlen(buffer) - 14] = 0;
strcpy(path, buffer+49);
fclose(f);
return 0;
}
}
/* not found, check in the current dir :( */
post("pdj: humm... pdj path library not found, setting current path");
strcpy(path, ".");
fclose(f);
return 1;
}
JNI_CreateJavaVM_func *linkjvm(char *vm_type) {
JNI_CreateJavaVM_func *func;
char work[BUFFER_SIZE];
char *javahome = pdj_getProperty("pdj.JAVA_HOME");
void *libVM;
if ( javahome == NULL ) {
javahome = getenv("JAVA_HOME");
} else {
sprintf(work, "%s/jre/lib/i386/%s/libjvm.so", javahome, vm_type);
libVM = dlopen(work, RTLD_LAZY);
if ( libVM == NULL ) {
post("pdj: unable to use the JVM specified at pdj.JAVA_HOME");
javahome = getenv("JAVA_HOME");
}
}
if ( javahome == NULL ) {
post("pdj: using JVM from the LD_LIBRARY_PATH");
libVM = dlopen("libjava.so", RTLD_LAZY);
} else {
post("pdj: using JVM %s", javahome);
/* using LD_LIBRARY_PATH + putenv doesn't work, load std jvm libs
* with absolute path. order is important.
*/
sprintf(work, "%s/jre/lib/i386/%s/libjvm.so", javahome, vm_type);
dlopen(work, RTLD_LAZY);
sprintf(work, "%s/jre/lib/i386/libverify.so", javahome);
dlopen(work, RTLD_LAZY);
sprintf(work, "%s/jre/lib/i386/libjava.so", javahome);
dlopen(work, RTLD_LAZY);
sprintf(work, "%s/jre/lib/i386/libmlib_image.so", javahome);
dlopen(work, RTLD_LAZY);
/* ELF should support dynamic LD_LIBRARY_PATH :( :( :( */
sprintf(work, "%s/jre/lib/i386/libjava.so", javahome);
libVM = dlopen(work, RTLD_LAZY);
}
if ( libVM == 0 ) {
error("pdj: %s", dlerror());
return NULL;
}
func = dlsym(libVM, "JNI_CreateJavaVM");
if ( func == 0 ) {
error("pdj: %s", dlerror());
return NULL;
}
return func;
}
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