minix/external/bsd/nvi/dist/common/dldb.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

46 lines
1,023 B
C

/* $NetBSD: dldb.c,v 1.2 2013/11/22 15:52:05 christos Exp $ */
#include "config.h"
#include <dlfcn.h>
#include "common.h"
#include "pathnames.h"
static void relocate __P(());
#define RELOC(func,returntype,args,proto,types) \
static returntype reloc_##func __P(proto); \
returntype (*nvi_##func) __P(proto) = reloc_##func; \
static returntype reloc_##func args \
types \
{ \
relocate(); \
return nvi_##func args; \
}
RELOC(db_create,int,(a,b,c),(DB **, DB_ENV *, u_int32_t),
DB**a;DB_ENV*b;u_int32_t c;)
RELOC(db_env_create,int,(a,b),(DB_ENV **, u_int32_t),DB_ENV ** a;u_int32_t b;);
RELOC(db_strerror,char *,(a),(int),int a;)
#define LOADSYM(func) \
if ((nvi_##func = dlsym(handle, #func)) == NULL) \
goto error;
static void
relocate()
{
void *handle = dlopen(_PATH_DB3, RTLD_LAZY);
if (!handle)
goto error;
LOADSYM(db_create)
LOADSYM(db_env_create)
LOADSYM(db_strerror)
return;
error:
fprintf(stderr, "Relocation error: %s\n", dlerror());
abort();
}