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/* Copyright (C) 2005-2011 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !defined(NOPLUGIN)
#include "plugins.h"
#include "dynamic.h"
#include <utype.h>
#include <sys/types.h>
#include <dirent.h>
void LoadPlugin(char *dynamic_lib_name) {
DL_CONST void *plugin;
char *pt, *spt, *freeme = NULL;
int (*init)(void);
spt = strrchr(dynamic_lib_name,'/');
if ( spt==NULL )
spt = dynamic_lib_name;
pt = strrchr(spt,'.');
if ( pt==NULL ) {
freeme = galloc(strlen(dynamic_lib_name)+strlen(SO_EXT)+4);
strcpy(freeme,dynamic_lib_name);
#ifdef __Mac
/* Bless us and splash us my precious. libtool on the mac names */
/* module shared libraries with ".so" and not ".dylib". Who'd u thunk it? */
strcat(freeme,".so");
#else
strcat(freeme,SO_EXT);
#endif
dynamic_lib_name = freeme;
}
plugin = dlopen(dynamic_lib_name,RTLD_LAZY);
if ( plugin==NULL ) {
LogError("Failed to dlopen: %s\n%s", dynamic_lib_name, dlerror());
free(freeme);
return;
}
init = (int (*)(void)) dlsym(plugin,"FontForgeInit");
if ( init==NULL ) {
LogError("Failed to find init function in %s", dynamic_lib_name);
dlclose(plugin);
free(freeme);
return;
}
if ( (*init)()==0 )
/* Init routine in charge of any error messages */
dlclose(plugin);
free(freeme);
}
static int isdyname(char *filename) {
char *pt;
pt = strrchr(filename,'.');
if ( pt==NULL )
return( false );
#ifdef __Mac
/* Libtool on the mac does version numbers the wrong way */
/* and uses .so */
if ( strcmp(pt,".so")!=0 )
return( false );
while ( pt-1>filename && isdigit(pt[-1])) --pt;
if ( pt-1>filename && pt[-1]=='.' )
return( false ); /* Looks like a version number */
return( true );
#else
if ( strcmp(pt,SO_EXT)==0 )
return( true );
return( false );
#endif
}
void LoadPluginDir(char *dir) {
DIR *diro;
struct dirent *ent;
char buffer[1025];
if ( dir==NULL ) {
/* First load system plug-ins */
#if defined( PLUGINDIR )
LoadPluginDir( PLUGINDIR );
#else
char *pt = getFontForgeShareDir();
if ( pt!=NULL ) {
snprintf(buffer, sizeof(buffer), "%s/plugins", pt );
LoadPluginDir( buffer );
}
#endif
/* Then load user defined ones */
if ( getPfaEditDir(buffer)!=NULL ) {
strcpy(buffer,getPfaEditDir(buffer));
strcat(buffer,"/plugins");
LoadPluginDir(buffer);
}
return;
}
diro = opendir(dir);
if ( diro==NULL ) /* It's ok not to have any plugins */
return;
while ( (ent = readdir(diro))!=NULL ) {
if ( isdyname(ent->d_name) ) {
sprintf( buffer, "%s/%s", dir, ent->d_name );
LoadPlugin(buffer);
}
}
closedir(diro);
}
#endif
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