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Use system libiconv, instead of trying to dlopen() it.

Browse source 
PR:		183153
Submitted by:	Dominic Fandrey <kamikaze bsdforen.de>
This commit is contained in:
Gleb Smirnoff 2013-11-09 14:48:50 +00:00
parent b1b2a0ed64
commit 096013098a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=257888
2 changed files with 15 additions and 57 deletions
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67
contrib/smbfs/lib/smb/nls.c
View file

@ -36,12 +36,9 @@
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/iconv.h>
#include <iconv.h>
#include <sys/sysctl.h>
#include <ctype.h>
#ifndef APPLE
#include <dlfcn.h>
#endif
#include <errno.h>
#include <stdio.h>
#include <string.h>
@ -50,21 +47,10 @@ __FBSDID("$FreeBSD$");
#include <err.h>
#include <netsmb/smb_lib.h>
/*
* prototype iconv* functions
*/
typedef void *iconv_t;
static iconv_t (*my_iconv_open)(const char *, const char *);
static size_t(*my_iconv)(iconv_t, const char **, size_t *, char **, size_t *);
static int(*my_iconv_close)(iconv_t);
u_char nls_lower[256];
u_char nls_upper[256];
static iconv_t nls_toext, nls_toloc;
static int iconv_loaded;
static void *iconv_lib;
int
nls_setlocale(const char *name)
@ -90,32 +76,18 @@ nls_setrecode(const char *local, const char *external)
#else
iconv_t icd;
if (iconv_loaded == 2)
return ENOENT;
else if (iconv_loaded == 0) {
iconv_loaded++;
iconv_lib = dlopen("libiconv.so", RTLD_LAZY | RTLD_GLOBAL);
if (iconv_lib == NULL) {
warn("Unable to load iconv library: %s\n", dlerror());
iconv_loaded++;
return ENOENT;
}
my_iconv_open = dlsym(iconv_lib, "iconv_open");
my_iconv = dlsym(iconv_lib, "iconv");
my_iconv_close = dlsym(iconv_lib, "iconv_close");
}
if (nls_toext)
my_iconv_close(nls_toext);
iconv_close(nls_toext);
if (nls_toloc)
my_iconv_close(nls_toloc);
iconv_close(nls_toloc);
nls_toext = nls_toloc = (iconv_t)0;
icd = my_iconv_open(external, local);
icd = iconv_open(external, local);
if (icd == (iconv_t)-1)
return errno;
nls_toext = icd;
icd = my_iconv_open(local, external);
icd = iconv_open(local, external);
if (icd == (iconv_t)-1) {
my_iconv_close(nls_toext);
iconv_close(nls_toext);
nls_toext = (iconv_t)0;
return errno;
}
@ -130,14 +102,11 @@ nls_str_toloc(char *dst, const char *src)
char *p = dst;
size_t inlen, outlen;
if (!iconv_loaded)
return strcpy(dst, src);
if (nls_toloc == (iconv_t)0)
return strcpy(dst, src);
inlen = outlen = strlen(src);
my_iconv(nls_toloc, NULL, NULL, &p, &outlen);
while (my_iconv(nls_toloc, &src, &inlen, &p, &outlen) == -1) {
iconv(nls_toloc, NULL, NULL, &p, &outlen);
while (iconv(nls_toloc, &src, &inlen, &p, &outlen) == -1) {
*p++ = *src++;
inlen--;
outlen--;
@ -152,14 +121,11 @@ nls_str_toext(char *dst, const char *src)
char *p = dst;
size_t inlen, outlen;
if (!iconv_loaded)
return strcpy(dst, src);
if (nls_toext == (iconv_t)0)
return strcpy(dst, src);
inlen = outlen = strlen(src);
my_iconv(nls_toext, NULL, NULL, &p, &outlen);
while (my_iconv(nls_toext, &src, &inlen, &p, &outlen) == -1) {
iconv(nls_toext, NULL, NULL, &p, &outlen);
while (iconv(nls_toext, &src, &inlen, &p, &outlen) == -1) {
*p++ = *src++;
inlen--;
outlen--;
@ -175,17 +141,14 @@ nls_mem_toloc(void *dst, const void *src, int size)
const char *s = src;
size_t inlen, outlen;
if (!iconv_loaded)
return memcpy(dst, src, size);
if (size == 0)
return NULL;
if (nls_toloc == (iconv_t)0)
return memcpy(dst, src, size);
inlen = outlen = size;
my_iconv(nls_toloc, NULL, NULL, &p, &outlen);
while (my_iconv(nls_toloc, &s, &inlen, &p, &outlen) == -1) {
iconv(nls_toloc, NULL, NULL, &p, &outlen);
while (iconv(nls_toloc, &s, &inlen, &p, &outlen) == -1) {
*p++ = *s++;
inlen--;
outlen--;
@ -203,12 +166,12 @@ nls_mem_toext(void *dst, const void *src, int size)
if (size == 0)
return NULL;
if (!iconv_loaded || nls_toext == (iconv_t)0)
if (nls_toext == (iconv_t)0)
return memcpy(dst, src, size);
inlen = outlen = size;
my_iconv(nls_toext, NULL, NULL, &p, &outlen);
while (my_iconv(nls_toext, &s, &inlen, &p, &outlen) == -1) {
iconv(nls_toext, NULL, NULL, &p, &outlen);
while (iconv(nls_toext, &s, &inlen, &p, &outlen) == -1) {
*p++ = *s++;
inlen--;
outlen--;

5
usr.sbin/mount_smbfs/Makefile
View file

@ -11,11 +11,6 @@ CFLAGS+= -DSMBFS -I${MOUNTDIR} -I${CONTRIBDIR}/include
LDADD= -lsmb -lkiconv
DPADD= ${LIBSMB} ${LIBKICONV}
# Needs to be dynamically linked for optional dlopen() access to
# userland libiconv (see the -E option).
#
NO_SHARED?= NO
.PATH: ${CONTRIBDIR}/mount_smbfs
.PATH: ${MOUNTDIR}