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/*
* ltdl.c - ltdl emulation for android
* Copyright (C) 2012 Ladislav Vaiz <ok1zia@nagano.cz>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <hamlib/config.h>
#include <ltdl.h>
#include <dlfcn.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef ANDROID
#include <android/log.h>
#endif
#define APREFIX "lib"
#define ASUFFIX ".so"
#define AMAXSTR 1024
#define ASONAME "libhamlib.so"
// path to application's libraries with trailing slash
char *libpath = NULL;
char *getlibpath(void)
{
char s[AMAXSTR];
FILE *f;
if (libpath != NULL) { return libpath; }
f = fopen("/proc/self/maps", "rt");
if (!f) { return "./"; }
while (fgets(s, AMAXSTR - 1, f))
{
char *c;
s[AMAXSTR - 1] = '\0';
c = strstr(s, ASONAME);
if (!c) { continue; }
// s is like "4a8a5000-4a8a6000 r--p 00018000 1f:01 743 /data/data/cz.nagano.tucnak/lib/libhamlib.so\n"
*c = '\0';
c = strchr(s, '/');
if (!c) { continue; }
libpath = calloc(1, strlen(c) + 1);
strcpy(libpath, c);
break;
}
fclose(f);
return libpath;
}
#ifdef XXREMOVEDXX
// Not referenced anywhere
int lt_dlinit(void)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlinit");
return 0;
}
#endif
// not called from hamlib
#ifdef XXREMOVEDXX
// Not referenced anywhere
int lt_dlexit(void)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlexit");
if (libpath != NULL)
{
free(libpath);
libpath = NULL;
}
return 0;
}
#endif
#ifdef XXREMOVEDXX
int lt_dladdsearchdir(const char *search_dir)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dladdsearchdir");
return 0;
}
#endif
lt_dlhandle adlopen(const char *filename)
{
char *c;
lt_dlhandle *ret;
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "adlopen('%s')", filename);
getlibpath();
if (libpath == NULL || filename == NULL) { return NULL; }
c = calloc(1, strlen(libpath) + strlen(APREFIX) + strlen(filename) + strlen(
ASUFFIX) + 1);
strcpy(c, libpath);
strcat(c, APREFIX);
strcat(c, filename);
strcat(c, ASUFFIX);
ret = dlopen(c, 0);
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "adlopen('%s')=%p", c, ret);
free(c);
return ret;
}
#ifdef XXREMOVEDXX
// Not referenced anywhere
lt_dlhandle lt_dlopen(const char *filename)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlopen(%s)", filename);
return adlopen(filename);
}
#endif
#ifdef XXREMOVEDXX
// Not referenced anywhere
lt_dlhandle lt_dlopenext(const char *filename)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlopenext(%s)", filename);
return adlopen(filename);
}
#endif
#ifdef XXREMOVEDXX
// Not referenced anywhere
int lt_dlclose(lt_dlhandle handle)
{
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlclose");
return dlclose(handle);
}
#endif
#ifdef XXREMOVEDXX
// Not referenced anywhere
void *lt_dlsym(lt_dlhandle handle, const char *name)
{
void *ret = dlsym(handle, name);
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlsym(%s)=%p", name, ret);
return ret;
}
#endif
#ifdef XXREMOVEDXX
// Not referenced anywhere
const char *lt_dlerror(void)
{
const char *ret = dlerror();
// __android_log_print(ANDROID_LOG_DEBUG, PACKAGE_NAME, "lt_dlerror=%s", ret);
return ret;
}
#endif
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