1139815Simp/*- 2206361Sjoel * Copyright (c) 2000-2001 Boris Popov 375332Sbp * All rights reserved. 475332Sbp * 575332Sbp * Redistribution and use in source and binary forms, with or without 675332Sbp * modification, are permitted provided that the following conditions 775332Sbp * are met: 875332Sbp * 1. Redistributions of source code must retain the above copyright 975332Sbp * notice, this list of conditions and the following disclaimer. 1075332Sbp * 2. Redistributions in binary form must reproduce the above copyright 1175332Sbp * notice, this list of conditions and the following disclaimer in the 1275332Sbp * documentation and/or other materials provided with the distribution. 1375332Sbp * 1475332Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1575332Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1675332Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1775332Sbp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1875332Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1975332Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2075332Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2175332Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2275332Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2375332Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2475332Sbp * SUCH DAMAGE. 2575332Sbp */ 26116189Sobrien 27116189Sobrien#include <sys/cdefs.h> 28116189Sobrien__FBSDID("$FreeBSD$"); 29116189Sobrien 3075332Sbp#include <sys/param.h> 3175332Sbp#include <sys/systm.h> 3275332Sbp#include <sys/kernel.h> 3375332Sbp#include <sys/iconv.h> 3475332Sbp#include <sys/malloc.h> 35120492Sfjoe#include <sys/mount.h> 36185652Sjhb#include <sys/sx.h> 37120492Sfjoe#include <sys/syslog.h> 3875332Sbp 3975332Sbp#include "iconv_converter_if.h" 4075332Sbp 4175332SbpSYSCTL_DECL(_kern_iconv); 4275332Sbp 4375332SbpSYSCTL_NODE(_kern, OID_AUTO, iconv, CTLFLAG_RW, NULL, "kernel iconv interface"); 4475332Sbp 45151897SrwatsonMALLOC_DEFINE(M_ICONV, "iconv", "ICONV structures"); 46249132Smavstatic MALLOC_DEFINE(M_ICONVDATA, "iconv_data", "ICONV data"); 4775332Sbp 48120492SfjoeMODULE_VERSION(libiconv, 2); 4975332Sbp 50185652Sjhbstatic struct sx iconv_lock; 51185652Sjhb 5275332Sbp#ifdef notnow 5375332Sbp/* 5475332Sbp * iconv converter instance 5575332Sbp */ 5675332Sbpstruct iconv_converter { 5775332Sbp KOBJ_FIELDS; 5875332Sbp void * c_data; 5975332Sbp}; 6075332Sbp#endif 6175332Sbp 6275332Sbpstruct sysctl_oid *iconv_oid_hook = &sysctl___kern_iconv; 6375332Sbp 6475332Sbp/* 6575332Sbp * List of loaded converters 6675332Sbp */ 6775332Sbpstatic TAILQ_HEAD(iconv_converter_list, iconv_converter_class) 6875332Sbp iconv_converters = TAILQ_HEAD_INITIALIZER(iconv_converters); 6975332Sbp 7075332Sbp/* 7175332Sbp * List of supported/loaded charsets pairs 7275332Sbp */ 7375332Sbpstatic TAILQ_HEAD(, iconv_cspair) 7475332Sbp iconv_cslist = TAILQ_HEAD_INITIALIZER(iconv_cslist); 7575332Sbpstatic int iconv_csid = 1; 7675332Sbp 7775332Sbpstatic char iconv_unicode_string[] = "unicode"; /* save eight bytes when possible */ 7875332Sbp 7975332Sbpstatic void iconv_unregister_cspair(struct iconv_cspair *csp); 8075332Sbp 8175332Sbpstatic int 8275332Sbpiconv_mod_unload(void) 8375332Sbp{ 8475332Sbp struct iconv_cspair *csp; 8575332Sbp 86185652Sjhb sx_xlock(&iconv_lock); 87245149Skevlo TAILQ_FOREACH(csp, &iconv_cslist, cp_link) { 88245149Skevlo if (csp->cp_refcount) { 89245149Skevlo sx_xunlock(&iconv_lock); 9075332Sbp return EBUSY; 91245149Skevlo } 92185652Sjhb } 93185652Sjhb 94185652Sjhb while ((csp = TAILQ_FIRST(&iconv_cslist)) != NULL) 9575332Sbp iconv_unregister_cspair(csp); 96185652Sjhb sx_xunlock(&iconv_lock); 97185652Sjhb sx_destroy(&iconv_lock); 9875332Sbp return 0; 9975332Sbp} 10075332Sbp 10175332Sbpstatic int 10275332Sbpiconv_mod_handler(module_t mod, int type, void *data) 10375332Sbp{ 10475332Sbp int error; 10575332Sbp 10675332Sbp switch (type) { 10775332Sbp case MOD_LOAD: 10875332Sbp error = 0; 109185652Sjhb sx_init(&iconv_lock, "iconv"); 11075332Sbp break; 11175332Sbp case MOD_UNLOAD: 11275332Sbp error = iconv_mod_unload(); 11375332Sbp break; 11475332Sbp default: 11575332Sbp error = EINVAL; 11675332Sbp } 11775332Sbp return error; 11875332Sbp} 11975332Sbp 12075332Sbpstatic moduledata_t iconv_mod = { 12175332Sbp "iconv", iconv_mod_handler, NULL 12275332Sbp}; 12375332Sbp 12475332SbpDECLARE_MODULE(iconv, iconv_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND); 12575332Sbp 12675332Sbpstatic int 12775332Sbpiconv_register_converter(struct iconv_converter_class *dcp) 12875332Sbp{ 12975332Sbp kobj_class_compile((struct kobj_class*)dcp); 13075332Sbp dcp->refs++; 13175332Sbp TAILQ_INSERT_TAIL(&iconv_converters, dcp, cc_link); 13275332Sbp return 0; 13375332Sbp} 13475332Sbp 13575332Sbpstatic int 13675332Sbpiconv_unregister_converter(struct iconv_converter_class *dcp) 13775332Sbp{ 13875332Sbp if (dcp->refs > 1) { 13975332Sbp ICDEBUG("converter have %d referenses left\n", dcp->refs); 14075332Sbp return EBUSY; 14175332Sbp } 14275332Sbp TAILQ_REMOVE(&iconv_converters, dcp, cc_link); 14375332Sbp kobj_class_free((struct kobj_class*)dcp); 14475332Sbp return 0; 14575332Sbp} 14675332Sbp 14775332Sbpstatic int 14875332Sbpiconv_lookupconv(const char *name, struct iconv_converter_class **dcpp) 14975332Sbp{ 15075332Sbp struct iconv_converter_class *dcp; 15175332Sbp 15275332Sbp TAILQ_FOREACH(dcp, &iconv_converters, cc_link) { 15375332Sbp if (name == NULL) 15475332Sbp continue; 15575332Sbp if (strcmp(name, ICONV_CONVERTER_NAME(dcp)) == 0) { 15675332Sbp if (dcpp) 15775332Sbp *dcpp = dcp; 15875332Sbp return 0; 15975332Sbp } 16075332Sbp } 16175332Sbp return ENOENT; 16275332Sbp} 16375332Sbp 16475332Sbpstatic int 16575332Sbpiconv_lookupcs(const char *to, const char *from, struct iconv_cspair **cspp) 16675332Sbp{ 16775332Sbp struct iconv_cspair *csp; 16875332Sbp 16975332Sbp TAILQ_FOREACH(csp, &iconv_cslist, cp_link) { 17075332Sbp if (strcmp(csp->cp_to, to) == 0 && 17175332Sbp strcmp(csp->cp_from, from) == 0) { 17275332Sbp if (cspp) 17375332Sbp *cspp = csp; 17475332Sbp return 0; 17575332Sbp } 17675332Sbp } 17775332Sbp return ENOENT; 17875332Sbp} 17975332Sbp 18075332Sbpstatic int 18175332Sbpiconv_register_cspair(const char *to, const char *from, 18275332Sbp struct iconv_converter_class *dcp, void *data, 18375332Sbp struct iconv_cspair **cspp) 18475332Sbp{ 18575332Sbp struct iconv_cspair *csp; 18675332Sbp char *cp; 18775332Sbp int csize, ucsto, ucsfrom; 18875332Sbp 18975332Sbp if (iconv_lookupcs(to, from, NULL) == 0) 19075332Sbp return EEXIST; 19175332Sbp csize = sizeof(*csp); 19275332Sbp ucsto = strcmp(to, iconv_unicode_string) == 0; 19375332Sbp if (!ucsto) 19475332Sbp csize += strlen(to) + 1; 19575332Sbp ucsfrom = strcmp(from, iconv_unicode_string) == 0; 19675332Sbp if (!ucsfrom) 19775332Sbp csize += strlen(from) + 1; 198111119Simp csp = malloc(csize, M_ICONV, M_WAITOK); 19975332Sbp bzero(csp, csize); 20075332Sbp csp->cp_id = iconv_csid++; 20175332Sbp csp->cp_dcp = dcp; 20275332Sbp cp = (char*)(csp + 1); 20375332Sbp if (!ucsto) { 20475332Sbp strcpy(cp, to); 20575332Sbp csp->cp_to = cp; 20675332Sbp cp += strlen(cp) + 1; 20775332Sbp } else 20875332Sbp csp->cp_to = iconv_unicode_string; 20975332Sbp if (!ucsfrom) { 21075332Sbp strcpy(cp, from); 21175332Sbp csp->cp_from = cp; 21275332Sbp } else 21375332Sbp csp->cp_from = iconv_unicode_string; 21475332Sbp csp->cp_data = data; 21575332Sbp 21675332Sbp TAILQ_INSERT_TAIL(&iconv_cslist, csp, cp_link); 21775332Sbp *cspp = csp; 21875332Sbp return 0; 21975332Sbp} 22075332Sbp 22175332Sbpstatic void 22275332Sbpiconv_unregister_cspair(struct iconv_cspair *csp) 22375332Sbp{ 22475332Sbp TAILQ_REMOVE(&iconv_cslist, csp, cp_link); 22575332Sbp if (csp->cp_data) 22675332Sbp free(csp->cp_data, M_ICONVDATA); 22775332Sbp free(csp, M_ICONV); 22875332Sbp} 22975332Sbp 23075332Sbp/* 23175332Sbp * Lookup and create an instance of converter. 23275332Sbp * Currently this layer didn't have associated 'instance' structure 23375332Sbp * to avoid unnesessary memory allocation. 23475332Sbp */ 23575332Sbpint 23675332Sbpiconv_open(const char *to, const char *from, void **handle) 23775332Sbp{ 23875332Sbp struct iconv_cspair *csp, *cspfrom, *cspto; 23975332Sbp struct iconv_converter_class *dcp; 24075332Sbp const char *cnvname; 24175332Sbp int error; 24275332Sbp 24375332Sbp /* 24475332Sbp * First, lookup fully qualified cspairs 24575332Sbp */ 24675332Sbp error = iconv_lookupcs(to, from, &csp); 24775332Sbp if (error == 0) 24875332Sbp return ICONV_CONVERTER_OPEN(csp->cp_dcp, csp, NULL, handle); 24975332Sbp 25075332Sbp /* 25175332Sbp * Well, nothing found. Now try to construct a composite conversion 25275332Sbp * ToDo: add a 'capability' field to converter 25375332Sbp */ 25475332Sbp TAILQ_FOREACH(dcp, &iconv_converters, cc_link) { 25575332Sbp cnvname = ICONV_CONVERTER_NAME(dcp); 25675332Sbp if (cnvname == NULL) 25775332Sbp continue; 25875332Sbp error = iconv_lookupcs(cnvname, from, &cspfrom); 25975332Sbp if (error) 26075332Sbp continue; 26175332Sbp error = iconv_lookupcs(to, cnvname, &cspto); 26275332Sbp if (error) 26375332Sbp continue; 26475332Sbp /* 26575332Sbp * Fine, we're found a pair which can be combined together 26675332Sbp */ 26775332Sbp return ICONV_CONVERTER_OPEN(dcp, cspto, cspfrom, handle); 26875332Sbp } 26975332Sbp return ENOENT; 27075332Sbp} 27175332Sbp 27275332Sbpint 27375332Sbpiconv_close(void *handle) 27475332Sbp{ 27575332Sbp return ICONV_CONVERTER_CLOSE(handle); 27675332Sbp} 27775332Sbp 27875332Sbpint 27975332Sbpiconv_conv(void *handle, const char **inbuf, 28075332Sbp size_t *inbytesleft, char **outbuf, size_t *outbytesleft) 28175332Sbp{ 282120492Sfjoe return ICONV_CONVERTER_CONV(handle, inbuf, inbytesleft, outbuf, outbytesleft, 0, 0); 28375332Sbp} 28475332Sbp 285120492Sfjoeint 286120492Sfjoeiconv_conv_case(void *handle, const char **inbuf, 287120492Sfjoe size_t *inbytesleft, char **outbuf, size_t *outbytesleft, int casetype) 288120492Sfjoe{ 289120492Sfjoe return ICONV_CONVERTER_CONV(handle, inbuf, inbytesleft, outbuf, outbytesleft, 0, casetype); 290120492Sfjoe} 291120492Sfjoe 292120492Sfjoeint 293120492Sfjoeiconv_convchr(void *handle, const char **inbuf, 294120492Sfjoe size_t *inbytesleft, char **outbuf, size_t *outbytesleft) 295120492Sfjoe{ 296120492Sfjoe return ICONV_CONVERTER_CONV(handle, inbuf, inbytesleft, outbuf, outbytesleft, 1, 0); 297120492Sfjoe} 298120492Sfjoe 299120492Sfjoeint 300120492Sfjoeiconv_convchr_case(void *handle, const char **inbuf, 301120492Sfjoe size_t *inbytesleft, char **outbuf, size_t *outbytesleft, int casetype) 302120492Sfjoe{ 303120492Sfjoe return ICONV_CONVERTER_CONV(handle, inbuf, inbytesleft, outbuf, outbytesleft, 1, casetype); 304120492Sfjoe} 305120492Sfjoe 306194638Sdelphijint 307194638Sdelphijtowlower(int c, void *handle) 308194638Sdelphij{ 309194638Sdelphij return ICONV_CONVERTER_TOLOWER(handle, c); 310194638Sdelphij} 311194638Sdelphij 312194638Sdelphijint 313194638Sdelphijtowupper(int c, void *handle) 314194638Sdelphij{ 315194638Sdelphij return ICONV_CONVERTER_TOUPPER(handle, c); 316194638Sdelphij} 317194638Sdelphij 31875332Sbp/* 31975332Sbp * Give a list of loaded converters. Each name terminated with 0. 32075332Sbp * An empty string terminates the list. 32175332Sbp */ 32275332Sbpstatic int 32375332Sbpiconv_sysctl_drvlist(SYSCTL_HANDLER_ARGS) 32475332Sbp{ 32575332Sbp struct iconv_converter_class *dcp; 32675332Sbp const char *name; 32775332Sbp char spc; 32875332Sbp int error; 32975332Sbp 33075332Sbp error = 0; 331185652Sjhb sx_slock(&iconv_lock); 33275332Sbp TAILQ_FOREACH(dcp, &iconv_converters, cc_link) { 33375332Sbp name = ICONV_CONVERTER_NAME(dcp); 33475332Sbp if (name == NULL) 33575332Sbp continue; 33675332Sbp error = SYSCTL_OUT(req, name, strlen(name) + 1); 33775332Sbp if (error) 33875332Sbp break; 33975332Sbp } 340185652Sjhb sx_sunlock(&iconv_lock); 34175332Sbp if (error) 34275332Sbp return error; 34375332Sbp spc = 0; 34475332Sbp error = SYSCTL_OUT(req, &spc, sizeof(spc)); 34575332Sbp return error; 34675332Sbp} 34775332Sbp 34875332SbpSYSCTL_PROC(_kern_iconv, OID_AUTO, drvlist, CTLFLAG_RD | CTLTYPE_OPAQUE, 34975332Sbp NULL, 0, iconv_sysctl_drvlist, "S,xlat", "registered converters"); 35075332Sbp 35175332Sbp/* 35275332Sbp * List all available charset pairs. 35375332Sbp */ 35475332Sbpstatic int 35575332Sbpiconv_sysctl_cslist(SYSCTL_HANDLER_ARGS) 35675332Sbp{ 35775332Sbp struct iconv_cspair *csp; 35875332Sbp struct iconv_cspair_info csi; 35975332Sbp int error; 36075332Sbp 36175332Sbp error = 0; 36275332Sbp bzero(&csi, sizeof(csi)); 36375332Sbp csi.cs_version = ICONV_CSPAIR_INFO_VER; 364185652Sjhb sx_slock(&iconv_lock); 36575332Sbp TAILQ_FOREACH(csp, &iconv_cslist, cp_link) { 36675332Sbp csi.cs_id = csp->cp_id; 36775332Sbp csi.cs_refcount = csp->cp_refcount; 36875332Sbp csi.cs_base = csp->cp_base ? csp->cp_base->cp_id : 0; 36975332Sbp strcpy(csi.cs_to, csp->cp_to); 37075332Sbp strcpy(csi.cs_from, csp->cp_from); 37175332Sbp error = SYSCTL_OUT(req, &csi, sizeof(csi)); 37275332Sbp if (error) 37375332Sbp break; 37475332Sbp } 375185652Sjhb sx_sunlock(&iconv_lock); 37675332Sbp return error; 37775332Sbp} 37875332Sbp 37975332SbpSYSCTL_PROC(_kern_iconv, OID_AUTO, cslist, CTLFLAG_RD | CTLTYPE_OPAQUE, 38075332Sbp NULL, 0, iconv_sysctl_cslist, "S,xlat", "registered charset pairs"); 38175332Sbp 382230196Skevloint 383230196Skevloiconv_add(const char *converter, const char *to, const char *from) 384230196Skevlo{ 385230196Skevlo struct iconv_converter_class *dcp; 386230196Skevlo struct iconv_cspair *csp; 387230196Skevlo 388230196Skevlo if (iconv_lookupconv(converter, &dcp) != 0) 389230196Skevlo return EINVAL; 390230196Skevlo 391230196Skevlo return iconv_register_cspair(to, from, dcp, NULL, &csp); 392230196Skevlo} 393230196Skevlo 39475332Sbp/* 39575332Sbp * Add new charset pair 39675332Sbp */ 39775332Sbpstatic int 39875332Sbpiconv_sysctl_add(SYSCTL_HANDLER_ARGS) 39975332Sbp{ 40075332Sbp struct iconv_converter_class *dcp; 40175332Sbp struct iconv_cspair *csp; 40275332Sbp struct iconv_add_in din; 40375332Sbp struct iconv_add_out dout; 40475332Sbp int error; 40575332Sbp 40675332Sbp error = SYSCTL_IN(req, &din, sizeof(din)); 40775332Sbp if (error) 40875332Sbp return error; 40975332Sbp if (din.ia_version != ICONV_ADD_VER) 41075332Sbp return EINVAL; 41175332Sbp if (din.ia_datalen > ICONV_CSMAXDATALEN) 41275332Sbp return EINVAL; 413149415Simura if (strlen(din.ia_from) >= ICONV_CSNMAXLEN) 414149415Simura return EINVAL; 415149415Simura if (strlen(din.ia_to) >= ICONV_CSNMAXLEN) 416149415Simura return EINVAL; 417149415Simura if (strlen(din.ia_converter) >= ICONV_CNVNMAXLEN) 418149415Simura return EINVAL; 41975332Sbp if (iconv_lookupconv(din.ia_converter, &dcp) != 0) 42075332Sbp return EINVAL; 421185652Sjhb sx_xlock(&iconv_lock); 42275332Sbp error = iconv_register_cspair(din.ia_to, din.ia_from, dcp, NULL, &csp); 423185652Sjhb if (error) { 424185652Sjhb sx_xunlock(&iconv_lock); 42575332Sbp return error; 426185652Sjhb } 42775332Sbp if (din.ia_datalen) { 428111119Simp csp->cp_data = malloc(din.ia_datalen, M_ICONVDATA, M_WAITOK); 42975332Sbp error = copyin(din.ia_data, csp->cp_data, din.ia_datalen); 43075332Sbp if (error) 43175332Sbp goto bad; 43275332Sbp } 43375332Sbp dout.ia_csid = csp->cp_id; 43475332Sbp error = SYSCTL_OUT(req, &dout, sizeof(dout)); 43575332Sbp if (error) 43675332Sbp goto bad; 437185652Sjhb sx_xunlock(&iconv_lock); 438120492Sfjoe ICDEBUG("%s => %s, %d bytes\n",din.ia_from, din.ia_to, din.ia_datalen); 43975332Sbp return 0; 44075332Sbpbad: 44175332Sbp iconv_unregister_cspair(csp); 442185652Sjhb sx_xunlock(&iconv_lock); 44375332Sbp return error; 44475332Sbp} 44575332Sbp 44675332SbpSYSCTL_PROC(_kern_iconv, OID_AUTO, add, CTLFLAG_RW | CTLTYPE_OPAQUE, 44775332Sbp NULL, 0, iconv_sysctl_add, "S,xlat", "register charset pair"); 44875332Sbp 44975332Sbp/* 45075332Sbp * Default stubs for converters 45175332Sbp */ 45275332Sbpint 45375332Sbpiconv_converter_initstub(struct iconv_converter_class *dp) 45475332Sbp{ 45575332Sbp return 0; 45675332Sbp} 45775332Sbp 45875332Sbpint 45975332Sbpiconv_converter_donestub(struct iconv_converter_class *dp) 46075332Sbp{ 46175332Sbp return 0; 46275332Sbp} 46375332Sbp 46475332Sbpint 465194638Sdelphijiconv_converter_tolowerstub(int c, void *handle) 466194638Sdelphij{ 467194638Sdelphij return (c); 468194638Sdelphij} 469194638Sdelphij 470194638Sdelphijint 47175332Sbpiconv_converter_handler(module_t mod, int type, void *data) 47275332Sbp{ 47375332Sbp struct iconv_converter_class *dcp = data; 47475332Sbp int error; 47575332Sbp 47675332Sbp switch (type) { 47775332Sbp case MOD_LOAD: 478185652Sjhb sx_xlock(&iconv_lock); 47975332Sbp error = iconv_register_converter(dcp); 480185652Sjhb if (error) { 481185652Sjhb sx_xunlock(&iconv_lock); 48275332Sbp break; 483185652Sjhb } 48475332Sbp error = ICONV_CONVERTER_INIT(dcp); 48575332Sbp if (error) 48675332Sbp iconv_unregister_converter(dcp); 487185652Sjhb sx_xunlock(&iconv_lock); 48875332Sbp break; 48975332Sbp case MOD_UNLOAD: 490185652Sjhb sx_xlock(&iconv_lock); 49175332Sbp ICONV_CONVERTER_DONE(dcp); 49275332Sbp error = iconv_unregister_converter(dcp); 493185652Sjhb sx_xunlock(&iconv_lock); 49475332Sbp break; 49575332Sbp default: 49675332Sbp error = EINVAL; 49775332Sbp } 49875332Sbp return error; 49975332Sbp} 50075332Sbp 50175332Sbp/* 502120492Sfjoe * Common used functions (don't use with unicode) 50375332Sbp */ 50475332Sbpchar * 50575332Sbpiconv_convstr(void *handle, char *dst, const char *src) 50675332Sbp{ 50775332Sbp char *p = dst; 508104568Smux size_t inlen, outlen; 509104568Smux int error; 51075332Sbp 51175332Sbp if (handle == NULL) { 51275332Sbp strcpy(dst, src); 51375332Sbp return dst; 51475332Sbp } 515148342Simura inlen = outlen = strlen(src); 51675332Sbp error = iconv_conv(handle, NULL, NULL, &p, &outlen); 51775332Sbp if (error) 51875332Sbp return NULL; 51975332Sbp error = iconv_conv(handle, &src, &inlen, &p, &outlen); 52075332Sbp if (error) 52175332Sbp return NULL; 52275332Sbp *p = 0; 52375332Sbp return dst; 52475332Sbp} 52575332Sbp 52675332Sbpvoid * 52775332Sbpiconv_convmem(void *handle, void *dst, const void *src, int size) 52875332Sbp{ 52975332Sbp const char *s = src; 53075332Sbp char *d = dst; 531104568Smux size_t inlen, outlen; 532104568Smux int error; 53375332Sbp 53475332Sbp if (size == 0) 53575332Sbp return dst; 53675332Sbp if (handle == NULL) { 53775332Sbp memcpy(dst, src, size); 53875332Sbp return dst; 53975332Sbp } 540148342Simura inlen = outlen = size; 54175332Sbp error = iconv_conv(handle, NULL, NULL, &d, &outlen); 54275332Sbp if (error) 54375332Sbp return NULL; 54475332Sbp error = iconv_conv(handle, &s, &inlen, &d, &outlen); 54575332Sbp if (error) 54675332Sbp return NULL; 54775332Sbp return dst; 54875332Sbp} 54975332Sbp 55075332Sbpint 55175332Sbpiconv_lookupcp(char **cpp, const char *s) 55275332Sbp{ 55375332Sbp if (cpp == NULL) { 554100080Smarkm ICDEBUG("warning a NULL list passed\n", ""); /* XXX ISO variadic macros cannot 555100080Smarkm leave out the 556100080Smarkm variadic args */ 55775332Sbp return ENOENT; 55875332Sbp } 55975332Sbp for (; *cpp; cpp++) 56075332Sbp if (strcmp(*cpp, s) == 0) 56175332Sbp return 0; 56275332Sbp return ENOENT; 56375332Sbp} 564120492Sfjoe 565120492Sfjoe/* 566120492Sfjoe * Return if fsname is in use of not 567120492Sfjoe */ 568120492Sfjoeint 569120492Sfjoeiconv_vfs_refcount(const char *fsname) 570120492Sfjoe{ 571120492Sfjoe struct vfsconf *vfsp; 572120492Sfjoe 573132710Sphk vfsp = vfs_byname(fsname); 574132710Sphk if (vfsp != NULL && vfsp->vfc_refcount > 0) 575132710Sphk return (EBUSY); 576120492Sfjoe return (0); 577120492Sfjoe} 578