diff options
Diffstat (limited to '')
| -rw-r--r-- | dso/aix/dso.c | 714 | ||||
| -rw-r--r-- | dso/beos/dso.c | 98 | ||||
| -rw-r--r-- | dso/netware/dso.c | 137 | ||||
| -rw-r--r-- | dso/os2/dso.c | 132 | ||||
| -rw-r--r-- | dso/os390/dso.c | 109 | ||||
| -rw-r--r-- | dso/unix/dso.c | 251 | ||||
| -rw-r--r-- | dso/win32/dso.c | 167 |
7 files changed, 1608 insertions, 0 deletions
diff --git a/dso/aix/dso.c b/dso/aix/dso.c new file mode 100644 index 0000000..25f6262 --- /dev/null +++ b/dso/aix/dso.c @@ -0,0 +1,714 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * dso.c -- DSO system function emulation for AIX + * + * This is *only* intended for AIX < 4.3. + */ + +/* + * Based on libdl (dlfcn.c/dlfcn.h) which is + * Copyright (c) 1992,1993,1995,1996,1997,1988 + * Jens-Uwe Mager, Helios Software GmbH, Hannover, Germany. + * + * Not derived from licensed software. + * + * Permission is granted to freely use, copy, modify, and redistribute + * this software, provided that the author is not construed to be liable + * for any results of using the software, alterations are clearly marked + * as such, and this notice is not modified. + * + * Changes marked with `--jwe' were made on April 7 1996 by + * John W. Eaton <jwe@bevo.che.wisc.edu> to support g++ + * + * Bundled, stripped and adjusted on April 1998 as one single source file + * for inclusion into the Apache HTTP server by + * Ralf S. Engelschall <rse@apache.org> + * + * Added to APR by David Reid April 2000 + */ + +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/ldr.h> +#include <a.out.h> +#include "apr_arch_dso.h" +#include "apr_portable.h" + +#if APR_HAS_DSO + +#undef FREAD +#undef FWRITE +#include <ldfcn.h> + +/* + * AIX 4.3 does remove some useful definitions from ldfcn.h. Define + * these here to compensate for that lossage. + */ +#ifndef BEGINNING +#define BEGINNING SEEK_SET +#endif +#ifndef FSEEK +#define FSEEK(ldptr,o,p) fseek(IOPTR(ldptr),(p==BEGINNING)?(OFFSET(ldptr) +o):o,p) +#endif +#ifndef FREAD +#define FREAD(p,s,n,ldptr) fread(p,s,n,IOPTR(ldptr)) +#endif + +/* + * Mode flags for the dlopen routine. + */ +#undef RTLD_LAZY +#define RTLD_LAZY 1 /* lazy function call binding */ +#undef RTLD_NOW +#define RTLD_NOW 2 /* immediate function call binding */ +#undef RTLD_GLOBAL +#define RTLD_GLOBAL 0x100 /* allow symbols to be global */ + +/* + * To be able to initialize, a library may provide a dl_info structure + * that contains functions to be called to initialize and terminate. + */ +struct dl_info { + void (*init) (void); + void (*fini) (void); +}; + +/* APR functions... + * + * As the AIX functions have been declared in the header file we just + * add the basic "wrappers" here. + */ + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->pool = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + + if (dso->handle != NULL && dlclose(dso->handle) != 0) + return APR_EINIT; + dso->handle = NULL; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *ctx) +{ + void *os_handle = dlopen((char *)path, RTLD_NOW | RTLD_GLOBAL); + + *res_handle = apr_pcalloc(ctx, sizeof(*res_handle)); + + if(os_handle == NULL) { + (*res_handle)->errormsg = dlerror(); + return APR_EDSOOPEN; + } + + (*res_handle)->handle = (void*)os_handle; + (*res_handle)->pool = ctx; + (*res_handle)->errormsg = NULL; + + apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null); + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + apr_dso_handle_t *handle, + const char *symname) +{ + void *retval = dlsym(handle->handle, symname); + + if (retval == NULL) { + handle->errormsg = dlerror(); + return APR_ESYMNOTFOUND; + } + + *ressym = retval; + return APR_SUCCESS; +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, apr_size_t buflen) +{ + if (dso->errormsg) { + apr_cpystrn(buffer, dso->errormsg, buflen); + return dso->errormsg; + } + return "No Error"; +} + + + +/* + * We simulate dlopen() et al. through a call to load. Because AIX has + * no call to find an exported symbol we read the loader section of the + * loaded module and build a list of exported symbols and their virtual + * address. + */ + +typedef struct { + char *name; /* the symbols's name */ + void *addr; /* its relocated virtual address */ +} Export, *ExportPtr; + +/* + * xlC uses the following structure to list its constructors and + * destructors. This is gleaned from the output of munch. + */ +typedef struct { + void (*init) (void); /* call static constructors */ + void (*term) (void); /* call static destructors */ +} Cdtor, *CdtorPtr; + +typedef void (*GccCDtorPtr) (void); + +/* + * The void * handle returned from dlopen is actually a ModulePtr. + */ +typedef struct Module { + struct Module *next; + char *name; /* module name for refcounting */ + int refCnt; /* the number of references */ + void *entry; /* entry point from load */ + struct dl_info *info; /* optional init/terminate functions */ + CdtorPtr cdtors; /* optional C++ constructors */ + GccCDtorPtr gcc_ctor; /* g++ constructors --jwe */ + GccCDtorPtr gcc_dtor; /* g++ destructors --jwe */ + int nExports; /* the number of exports found */ + ExportPtr exports; /* the array of exports */ +} Module, *ModulePtr; + +/* + * We keep a list of all loaded modules to be able to call the fini + * handlers and destructors at atexit() time. + */ +static ModulePtr modList; + +/* + * The last error from one of the dl* routines is kept in static + * variables here. Each error is returned only once to the caller. + */ +static char errbuf[BUFSIZ]; +static int errvalid; + +/* + * The `fixed' gcc header files on AIX 3.2.5 provide a prototype for + * strdup(). --jwe + */ +extern char *strdup(const char *); +static void caterr(char *); +static int readExports(ModulePtr); +static void terminate(void); +static void *findMain(void); + +void *dlopen(const char *path, int mode) +{ + register ModulePtr mp; + static void *mainModule; + + /* + * Upon the first call register a terminate handler that will + * close all libraries. Also get a reference to the main module + * for use with loadbind. + */ + if (!mainModule) { + if ((mainModule = findMain()) == NULL) + return NULL; + atexit(terminate); + } + /* + * Scan the list of modules if we have the module already loaded. + */ + for (mp = modList; mp; mp = mp->next) + if (strcmp(mp->name, path) == 0) { + mp->refCnt++; + return mp; + } + if ((mp = (ModulePtr) calloc(1, sizeof(*mp))) == NULL) { + errvalid++; + strcpy(errbuf, "calloc: "); + strcat(errbuf, strerror(errno)); + return NULL; + } + if ((mp->name = strdup(path)) == NULL) { + errvalid++; + strcpy(errbuf, "strdup: "); + strcat(errbuf, strerror(errno)); + free(mp); + return NULL; + } + /* + * load should be declared load(const char *...). Thus we + * cast the path to a normal char *. Ugly. + */ + if ((mp->entry = (void *) loadAndInit((char *) path, L_NOAUTODEFER, NULL)) == NULL) { + free(mp->name); + free(mp); + errvalid++; + strcpy(errbuf, "dlopen: "); + strcat(errbuf, path); + strcat(errbuf, ": "); + /* + * If AIX says the file is not executable, the error + * can be further described by querying the loader about + * the last error. + */ + if (errno == ENOEXEC) { + char *tmp[BUFSIZ / sizeof(char *)]; + if (loadquery(L_GETMESSAGES, tmp, sizeof(tmp)) == -1) + strcpy(errbuf, strerror(errno)); + else { + char **p; + for (p = tmp; *p; p++) + caterr(*p); + } + } + else + strcat(errbuf, strerror(errno)); + return NULL; + } + mp->refCnt = 1; + mp->next = modList; + modList = mp; + if (loadbind(0, mainModule, mp->entry) == -1) { + dlclose(mp); + errvalid++; + strcpy(errbuf, "loadbind: "); + strcat(errbuf, strerror(errno)); + return NULL; + } + /* + * If the user wants global binding, loadbind against all other + * loaded modules. + */ + if (mode & RTLD_GLOBAL) { + register ModulePtr mp1; + for (mp1 = mp->next; mp1; mp1 = mp1->next) + if (loadbind(0, mp1->entry, mp->entry) == -1) { + dlclose(mp); + errvalid++; + strcpy(errbuf, "loadbind: "); + strcat(errbuf, strerror(errno)); + return NULL; + } + } + if (readExports(mp) == -1) { + dlclose(mp); + return NULL; + } + /* + * If there is a dl_info structure, call the init function. + */ + if (mp->info = (struct dl_info *) dlsym(mp, "dl_info")) { + if (mp->info->init) + (*mp->info->init) (); + } + else + errvalid = 0; + /* + * If the shared object was compiled using xlC we will need + * to call static constructors (and later on dlclose destructors). + */ + if (mp->cdtors = (CdtorPtr) dlsym(mp, "__cdtors")) { + CdtorPtr cp = mp->cdtors; + while (cp->init || cp->term) { + if (cp->init && cp->init != (void (*)(void)) 0xffffffff) + (*cp->init) (); + cp++; + } + /* + * If the shared object was compiled using g++, we will need + * to call global constructors using the _GLOBAL__DI function, + * and later, global destructors using the _GLOBAL_DD + * funciton. --jwe + */ + } + else if (mp->gcc_ctor = (GccCDtorPtr) dlsym(mp, "_GLOBAL__DI")) { + (*mp->gcc_ctor) (); + mp->gcc_dtor = (GccCDtorPtr) dlsym(mp, "_GLOBAL__DD"); + } + else + errvalid = 0; + return mp; +} + +/* + * Attempt to decipher an AIX loader error message and append it + * to our static error message buffer. + */ +static void caterr(char *s) +{ + register char *p = s; + + while (*p >= '0' && *p <= '9') + p++; + switch (atoi(s)) { + case L_ERROR_TOOMANY: + strcat(errbuf, "to many errors"); + break; + case L_ERROR_NOLIB: + strcat(errbuf, "can't load library"); + strcat(errbuf, p); + break; + case L_ERROR_UNDEF: + strcat(errbuf, "can't find symbol"); + strcat(errbuf, p); + break; + case L_ERROR_RLDBAD: + strcat(errbuf, "bad RLD"); + strcat(errbuf, p); + break; + case L_ERROR_FORMAT: + strcat(errbuf, "bad exec format in"); + strcat(errbuf, p); + break; + case L_ERROR_ERRNO: + strcat(errbuf, strerror(atoi(++p))); + break; + default: + strcat(errbuf, s); + break; + } +} + +void *dlsym(void *handle, const char *symbol) +{ + register ModulePtr mp = (ModulePtr) handle; + register ExportPtr ep; + register int i; + + /* + * Could speed up the search, but I assume that one assigns + * the result to function pointers anyways. + */ + for (ep = mp->exports, i = mp->nExports; i; i--, ep++) + if (strcmp(ep->name, symbol) == 0) + return ep->addr; + errvalid++; + strcpy(errbuf, "dlsym: undefined symbol "); + strcat(errbuf, symbol); + return NULL; +} + +const char *dlerror(void) +{ + if (errvalid) { + errvalid = 0; + return errbuf; + } + return NULL; +} + +int dlclose(void *handle) +{ + register ModulePtr mp = (ModulePtr) handle; + int result; + register ModulePtr mp1; + + if (--mp->refCnt > 0) + return 0; + if (mp->info && mp->info->fini) + (*mp->info->fini) (); + if (mp->cdtors) { + CdtorPtr cp = mp->cdtors; + while (cp->init || cp->term) { + if (cp->term && cp->init != (void (*)(void)) 0xffffffff) + (*cp->term) (); + cp++; + } + /* + * If the function to handle global destructors for g++ + * exists, call it. --jwe + */ + } + else if (mp->gcc_dtor) { + (*mp->gcc_dtor) (); + } + result = unload(mp->entry); + if (result == -1) { + errvalid++; + strcpy(errbuf, strerror(errno)); + } + if (mp->exports) { + register ExportPtr ep; + register int i; + for (ep = mp->exports, i = mp->nExports; i; i--, ep++) + if (ep->name) + free(ep->name); + free(mp->exports); + } + if (mp == modList) + modList = mp->next; + else { + for (mp1 = modList; mp1; mp1 = mp1->next) + if (mp1->next == mp) { + mp1->next = mp->next; + break; + } + } + free(mp->name); + free(mp); + return result; +} + +static void terminate(void) +{ + while (modList) + dlclose(modList); +} + +/* + * Build the export table from the XCOFF .loader section. + */ +static int readExports(ModulePtr mp) +{ + LDFILE *ldp = NULL; + SCNHDR sh, shdata; + LDHDR *lhp; + char *ldbuf; + LDSYM *ls; + int i; + ExportPtr ep; + struct ld_info *lp; + char *buf; + int size = 4 * 1024; + void *dataorg; + + /* + * The module might be loaded due to the LIBPATH + * environment variable. Search for the loaded + * module using L_GETINFO. + */ + if ((buf = malloc(size)) == NULL) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + return -1; + } + while ((i = loadquery(L_GETINFO, buf, size)) == -1 && errno == ENOMEM) { + free(buf); + size += 4 * 1024; + if ((buf = malloc(size)) == NULL) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + return -1; + } + } + if (i == -1) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + free(buf); + return -1; + } + /* + * Traverse the list of loaded modules. The entry point + * returned by load() does actually point to the TOC + * entry contained in the data segment. + */ + lp = (struct ld_info *) buf; + while (lp) { + if ((unsigned long) mp->entry >= (unsigned long) lp->ldinfo_dataorg && + (unsigned long) mp->entry < (unsigned long) lp->ldinfo_dataorg + + lp->ldinfo_datasize) { + dataorg = lp->ldinfo_dataorg; + ldp = ldopen(lp->ldinfo_filename, ldp); + break; + } + if (lp->ldinfo_next == 0) + lp = NULL; + else + lp = (struct ld_info *) ((char *) lp + lp->ldinfo_next); + } + free(buf); + if (!ldp) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + return -1; + } + if (TYPE(ldp) != U802TOCMAGIC) { + errvalid++; + strcpy(errbuf, "readExports: bad magic"); + while (ldclose(ldp) == FAILURE); + return -1; + } + /* + * Get the padding for the data section. This is needed for + * AIX 4.1 compilers. This is used when building the final + * function pointer to the exported symbol. + */ + if (ldnshread(ldp, _DATA, &shdata) != SUCCESS) { + errvalid++; + strcpy(errbuf, "readExports: cannot read data section header"); + while (ldclose(ldp) == FAILURE); + return -1; + } + if (ldnshread(ldp, _LOADER, &sh) != SUCCESS) { + errvalid++; + strcpy(errbuf, "readExports: cannot read loader section header"); + while (ldclose(ldp) == FAILURE); + return -1; + } + /* + * We read the complete loader section in one chunk, this makes + * finding long symbol names residing in the string table easier. + */ + if ((ldbuf = (char *) malloc(sh.s_size)) == NULL) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + while (ldclose(ldp) == FAILURE); + return -1; + } + if (FSEEK(ldp, sh.s_scnptr, BEGINNING) != OKFSEEK) { + errvalid++; + strcpy(errbuf, "readExports: cannot seek to loader section"); + free(ldbuf); + while (ldclose(ldp) == FAILURE); + return -1; + } + if (FREAD(ldbuf, sh.s_size, 1, ldp) != 1) { + errvalid++; + strcpy(errbuf, "readExports: cannot read loader section"); + free(ldbuf); + while (ldclose(ldp) == FAILURE); + return -1; + } + lhp = (LDHDR *) ldbuf; + ls = (LDSYM *) (ldbuf + LDHDRSZ); + /* + * Count the number of exports to include in our export table. + */ + for (i = lhp->l_nsyms; i; i--, ls++) { + if (!LDR_EXPORT(*ls)) + continue; + mp->nExports++; + } + if ((mp->exports = (ExportPtr) calloc(mp->nExports, sizeof(*mp->exports))) == NULL) { + errvalid++; + strcpy(errbuf, "readExports: "); + strcat(errbuf, strerror(errno)); + free(ldbuf); + while (ldclose(ldp) == FAILURE); + return -1; + } + /* + * Fill in the export table. All entries are relative to + * the beginning of the data origin. + */ + ep = mp->exports; + ls = (LDSYM *) (ldbuf + LDHDRSZ); + for (i = lhp->l_nsyms; i; i--, ls++) { + char *symname; + char tmpsym[SYMNMLEN + 1]; + if (!LDR_EXPORT(*ls)) + continue; + if (ls->l_zeroes == 0) + symname = ls->l_offset + lhp->l_stoff + ldbuf; + else { + /* + * The l_name member is not zero terminated, we + * must copy the first SYMNMLEN chars and make + * sure we have a zero byte at the end. + */ + strncpy(tmpsym, ls->l_name, SYMNMLEN); + tmpsym[SYMNMLEN] = '\0'; + symname = tmpsym; + } + ep->name = strdup(symname); + ep->addr = (void *) ((unsigned long) dataorg + + ls->l_value - shdata.s_vaddr); + ep++; + } + free(ldbuf); + while (ldclose(ldp) == FAILURE); + return 0; +} + +/* + * Find the main modules data origin. This is used as export pointer + * for loadbind() to be able to resolve references to the main part. + */ +static void *findMain(void) +{ + struct ld_info *lp; + char *buf; + int size = 4 * 1024; + int i; + void *ret; + + if ((buf = malloc(size)) == NULL) { + errvalid++; + strcpy(errbuf, "findMain: "); + strcat(errbuf, strerror(errno)); + return NULL; + } + while ((i = loadquery(L_GETINFO, buf, size)) == -1 && errno == ENOMEM) { + free(buf); + size += 4 * 1024; + if ((buf = malloc(size)) == NULL) { + errvalid++; + strcpy(errbuf, "findMain: "); + strcat(errbuf, strerror(errno)); + return NULL; + } + } + if (i == -1) { + errvalid++; + strcpy(errbuf, "findMain: "); + strcat(errbuf, strerror(errno)); + free(buf); + return NULL; + } + /* + * The first entry is the main module. The data segment + * starts with the TOC entries for all exports, so the + * data segment origin works as argument for loadbind. + */ + lp = (struct ld_info *) buf; + ret = lp->ldinfo_dataorg; + free(buf); + return ret; +} + +#endif diff --git a/dso/beos/dso.c b/dso/beos/dso.c new file mode 100644 index 0000000..91dd1b4 --- /dev/null +++ b/dso/beos/dso.c @@ -0,0 +1,98 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_arch_dso.h" +#include "apr_portable.h" + +#if APR_HAS_DSO + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + + if (dso->handle > 0 && unload_add_on(dso->handle) < B_NO_ERROR) + return APR_EINIT; + dso->handle = -1; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *pool) +{ + image_id newid = -1; + + *res_handle = apr_pcalloc(pool, sizeof(*res_handle)); + + if((newid = load_add_on(path)) < B_NO_ERROR) { + (*res_handle)->errormsg = strerror(newid); + return APR_EDSOOPEN; + } + + (*res_handle)->pool = pool; + (*res_handle)->handle = newid; + + apr_pool_cleanup_register(pool, *res_handle, dso_cleanup, apr_pool_cleanup_null); + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, apr_dso_handle_t *handle, + const char *symname) +{ + int err; + + if (symname == NULL) + return APR_ESYMNOTFOUND; + + err = get_image_symbol(handle->handle, symname, B_SYMBOL_TYPE_ANY, + ressym); + + if(err != B_OK) + return APR_ESYMNOTFOUND; + + return APR_SUCCESS; +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, apr_size_t buflen) +{ + strncpy(buffer, strerror(errno), buflen); + return buffer; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->pool = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +#endif diff --git a/dso/netware/dso.c b/dso/netware/dso.c new file mode 100644 index 0000000..4cd2ad6 --- /dev/null +++ b/dso/netware/dso.c @@ -0,0 +1,137 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_arch_dso.h" +#include "apr_strings.h" +#include "apr_portable.h" + +#include <library.h> +#include <unistd.h> + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->pool = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + sym_list *symbol = NULL; + void *NLMHandle = getnlmhandle(); + + if (dso->handle == NULL) + return APR_SUCCESS; + + if (dso->symbols != NULL) { + symbol = dso->symbols; + while (symbol) { + UnImportPublicObject(NLMHandle, symbol->symbol); + symbol = symbol->next; + } + } + + if (dlclose(dso->handle) != 0) + return APR_EINIT; + + dso->handle = NULL; + dso->symbols = NULL; + dso->path = NULL; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *pool) +{ + + void *os_handle = NULL; + char *fullpath = NULL; + apr_status_t rv; + + if ((rv = apr_filepath_merge(&fullpath, NULL, path, + APR_FILEPATH_NATIVE, pool)) != APR_SUCCESS) { + return rv; + } + + os_handle = dlopen(fullpath, RTLD_NOW | RTLD_LOCAL); + + *res_handle = apr_pcalloc(pool, sizeof(**res_handle)); + + if(os_handle == NULL) { + (*res_handle)->errormsg = dlerror(); + return APR_EDSOOPEN; + } + + (*res_handle)->handle = (void*)os_handle; + (*res_handle)->pool = pool; + (*res_handle)->errormsg = NULL; + (*res_handle)->symbols = NULL; + (*res_handle)->path = apr_pstrdup(pool, fullpath); + + apr_pool_cleanup_register(pool, *res_handle, dso_cleanup, apr_pool_cleanup_null); + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + apr_dso_handle_t *handle, + const char *symname) +{ + sym_list *symbol = NULL; + void *retval = dlsym(handle->handle, symname); + + if (retval == NULL) { + handle->errormsg = dlerror(); + return APR_ESYMNOTFOUND; + } + + symbol = apr_pcalloc(handle->pool, sizeof(sym_list)); + symbol->next = handle->symbols; + handle->symbols = symbol; + symbol->symbol = apr_pstrdup(handle->pool, symname); + + *ressym = retval; + + return APR_SUCCESS; +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, + apr_size_t buflen) +{ + if (dso->errormsg) { + apr_cpystrn(buffer, dso->errormsg, buflen); + return dso->errormsg; + } + return "No Error"; +} + diff --git a/dso/os2/dso.c b/dso/os2/dso.c new file mode 100644 index 0000000..1a7f7de --- /dev/null +++ b/dso/os2/dso.c @@ -0,0 +1,132 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_arch_dso.h" +#include "apr_strings.h" +#include "apr_portable.h" +#include <stdio.h> +#include <string.h> + +#if APR_HAS_DSO + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + int rc; + + if (dso->handle == 0) + return APR_SUCCESS; + + rc = DosFreeModule(dso->handle); + + if (rc == 0) + dso->handle = 0; + + return APR_FROM_OS_ERROR(rc); +} + + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, const char *path, apr_pool_t *ctx) +{ + char failed_module[200]; + HMODULE handle; + int rc; + + *res_handle = apr_pcalloc(ctx, sizeof(**res_handle)); + (*res_handle)->cont = ctx; + (*res_handle)->load_error = APR_SUCCESS; + (*res_handle)->failed_module = NULL; + + if ((rc = DosLoadModule(failed_module, sizeof(failed_module), path, &handle)) != 0) { + (*res_handle)->load_error = APR_FROM_OS_ERROR(rc); + (*res_handle)->failed_module = apr_pstrdup(ctx, failed_module); + return APR_FROM_OS_ERROR(rc); + } + + (*res_handle)->handle = handle; + apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null); + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->cont, handle, dso_cleanup); +} + + + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + apr_dso_handle_t *handle, + const char *symname) +{ + PFN func; + int rc; + + if (symname == NULL || ressym == NULL) + return APR_ESYMNOTFOUND; + + if ((rc = DosQueryProcAddr(handle->handle, 0, symname, &func)) != 0) { + handle->load_error = APR_FROM_OS_ERROR(rc); + return handle->load_error; + } + + *ressym = func; + return APR_SUCCESS; +} + + + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, apr_size_t buflen) +{ + char message[200]; + apr_strerror(dso->load_error, message, sizeof(message)); + + if (dso->failed_module != NULL) { + strcat(message, " ("); + strcat(message, dso->failed_module); + strcat(message, ")"); + } + + apr_cpystrn(buffer, message, buflen); + return buffer; +} + + + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->cont = pool; + (*aprdso)->load_error = APR_SUCCESS; + (*aprdso)->failed_module = NULL; + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +#endif diff --git a/dso/os390/dso.c b/dso/os390/dso.c new file mode 100644 index 0000000..9344c71 --- /dev/null +++ b/dso/os390/dso.c @@ -0,0 +1,109 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_portable.h" +#include "apr_strings.h" +#include "apr_arch_dso.h" +#include <errno.h> +#include <string.h> + +#if APR_HAS_DSO + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->pool = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + int rc; + + if (dso->handle == 0) + return APR_SUCCESS; + + rc = dllfree(dso->handle); + + if (rc == 0) { + dso->handle = 0; + return APR_SUCCESS; + } + dso->failing_errno = errno; + return errno; +} + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *ctx) +{ + dllhandle *handle; + int rc; + + *res_handle = apr_pcalloc(ctx, sizeof(**res_handle)); + (*res_handle)->pool = ctx; + if ((handle = dllload(path)) != NULL) { + (*res_handle)->handle = handle; + apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null); + return APR_SUCCESS; + } + + (*res_handle)->failing_errno = errno; + return APR_EDSOOPEN; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + apr_dso_handle_t *handle, + const char *symname) +{ + void *func_ptr; + void *var_ptr; + + if ((var_ptr = dllqueryvar(handle->handle, symname)) != NULL) { + *ressym = var_ptr; + return APR_SUCCESS; + } + if ((func_ptr = (void *)dllqueryfn(handle->handle, symname)) != NULL) { + *ressym = func_ptr; + return APR_SUCCESS; + } + handle->failing_errno = errno; + return APR_ESYMNOTFOUND; +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *handle, char *buffer, + apr_size_t buflen) +{ + apr_cpystrn(buffer, strerror(handle->failing_errno), buflen); + return buffer; +} + +#endif diff --git a/dso/unix/dso.c b/dso/unix/dso.c new file mode 100644 index 0000000..fdd56f1 --- /dev/null +++ b/dso/unix/dso.c @@ -0,0 +1,251 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_arch_dso.h" +#include "apr_strings.h" +#include "apr_portable.h" + +#if APR_HAS_DSO + +#if !defined(DSO_USE_DLFCN) && !defined(DSO_USE_SHL) && !defined(DSO_USE_DYLD) +#error No DSO implementation specified. +#endif + +#ifdef HAVE_STDDEF_H +#include <stddef.h> +#endif +#if APR_HAVE_STDLIB_H +#include <stdlib.h> /* malloc(), free() */ +#endif +#if APR_HAVE_STRING_H +#include <string.h> /* for strerror() on HP-UX */ +#endif + +#if defined(DSO_USE_DYLD) +#define DYLD_LIBRARY_HANDLE (void *)-1 +#endif + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->pool = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + + if (dso->handle == NULL) + return APR_SUCCESS; + +#if defined(DSO_USE_SHL) + shl_unload((shl_t)dso->handle); +#elif defined(DSO_USE_DYLD) + if (dso->handle != DYLD_LIBRARY_HANDLE) { + NSUnLinkModule(dso->handle, FALSE); + } +#elif defined(DSO_USE_DLFCN) + if (dlclose(dso->handle) != 0) + return APR_EINIT; +#endif + dso->handle = NULL; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *pool) +{ +#if defined(DSO_USE_SHL) + shl_t os_handle = shl_load(path, BIND_IMMEDIATE, 0L); + +#elif defined(DSO_USE_DYLD) + NSObjectFileImage image; + NSModule os_handle = NULL; + NSObjectFileImageReturnCode dsoerr; + const char* err_msg = NULL; + dsoerr = NSCreateObjectFileImageFromFile(path, &image); + + if (dsoerr == NSObjectFileImageSuccess) { +#if defined(NSLINKMODULE_OPTION_RETURN_ON_ERROR) && defined(NSLINKMODULE_OPTION_NONE) + os_handle = NSLinkModule(image, path, + NSLINKMODULE_OPTION_RETURN_ON_ERROR | + NSLINKMODULE_OPTION_NONE); + /* If something went wrong, get the errors... */ + if (!os_handle) { + NSLinkEditErrors errors; + int errorNumber; + const char *fileName; + NSLinkEditError(&errors, &errorNumber, &fileName, &err_msg); + } +#else + os_handle = NSLinkModule(image, path, FALSE); +#endif + NSDestroyObjectFileImage(image); + } + else if ((dsoerr == NSObjectFileImageFormat || + dsoerr == NSObjectFileImageInappropriateFile) && + NSAddLibrary(path) == TRUE) { + os_handle = (NSModule)DYLD_LIBRARY_HANDLE; + } + else { + err_msg = "cannot create object file image or add library"; + } + +#elif defined(DSO_USE_DLFCN) +#if defined(OSF1) || defined(SEQUENT) || defined(SNI) ||\ + (defined(__FreeBSD_version) && (__FreeBSD_version >= 220000)) ||\ + defined(__DragonFly__) + void *os_handle = dlopen((char *)path, RTLD_NOW | RTLD_GLOBAL); + +#else + int flags = RTLD_NOW | RTLD_GLOBAL; + void *os_handle; +#ifdef _AIX + if (strchr(path + 1, '(') && path[strlen(path) - 1] == ')') + { + /* This special archive.a(dso.so) syntax is required for + * the way libtool likes to build shared libraries on AIX. + * dlopen() support for such a library requires that the + * RTLD_MEMBER flag be enabled. + */ + flags |= RTLD_MEMBER; + } +#endif + os_handle = dlopen(path, flags); +#endif +#endif /* DSO_USE_x */ + + *res_handle = apr_pcalloc(pool, sizeof(**res_handle)); + + if(os_handle == NULL) { +#if defined(DSO_USE_SHL) + (*res_handle)->errormsg = strerror(errno); + return APR_EDSOOPEN; +#elif defined(DSO_USE_DYLD) + (*res_handle)->errormsg = (err_msg) ? err_msg : "link failed"; + return APR_EDSOOPEN; +#elif defined(DSO_USE_DLFCN) + (*res_handle)->errormsg = dlerror(); + return APR_EDSOOPEN; +#endif + } + + (*res_handle)->handle = (void*)os_handle; + (*res_handle)->pool = pool; + (*res_handle)->errormsg = NULL; + + apr_pool_cleanup_register(pool, *res_handle, dso_cleanup, apr_pool_cleanup_null); + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->pool, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + apr_dso_handle_t *handle, + const char *symname) +{ +#if defined(DSO_USE_SHL) + void *symaddr = NULL; + int status; + + errno = 0; + status = shl_findsym((void *)&handle->handle, symname, TYPE_PROCEDURE, &symaddr); + if (status == -1 && errno == 0) /* try TYPE_DATA instead */ + status = shl_findsym((void *)&handle->handle, symname, TYPE_DATA, &symaddr); + if (status == -1) + return APR_ESYMNOTFOUND; + *ressym = symaddr; + return APR_SUCCESS; + +#elif defined(DSO_USE_DYLD) + void *retval = NULL; + NSSymbol symbol; + char *symname2 = (char*)malloc(sizeof(char)*(strlen(symname)+2)); + sprintf(symname2, "_%s", symname); +#ifdef NSLINKMODULE_OPTION_PRIVATE + if (handle->handle == DYLD_LIBRARY_HANDLE) { + symbol = NSLookupAndBindSymbol(symname2); + } + else { + symbol = NSLookupSymbolInModule((NSModule)handle->handle, symname2); + } +#else + symbol = NSLookupAndBindSymbol(symname2); +#endif + free(symname2); + if (symbol == NULL) { + handle->errormsg = "undefined symbol"; + return APR_ESYMNOTFOUND; + } + retval = NSAddressOfSymbol(symbol); + if (retval == NULL) { + handle->errormsg = "cannot resolve symbol"; + return APR_ESYMNOTFOUND; + } + *ressym = retval; + return APR_SUCCESS; +#elif defined(DSO_USE_DLFCN) + +#if defined(DLSYM_NEEDS_UNDERSCORE) + void *retval; + char *symbol = (char*)malloc(sizeof(char)*(strlen(symname)+2)); + sprintf(symbol, "_%s", symname); + retval = dlsym(handle->handle, symbol); + free(symbol); +#elif defined(SEQUENT) || defined(SNI) + void *retval = dlsym(handle->handle, (char *)symname); +#else + void *retval = dlsym(handle->handle, symname); +#endif /* DLSYM_NEEDS_UNDERSCORE */ + + if (retval == NULL) { + handle->errormsg = dlerror(); + return APR_ESYMNOTFOUND; + } + + *ressym = retval; + + return APR_SUCCESS; +#endif /* DSO_USE_x */ +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, + apr_size_t buflen) +{ + if (dso->errormsg) { + apr_cpystrn(buffer, dso->errormsg, buflen); + return dso->errormsg; + } + return "No Error"; +} + +#endif diff --git a/dso/win32/dso.c b/dso/win32/dso.c new file mode 100644 index 0000000..d4a6893 --- /dev/null +++ b/dso/win32/dso.c @@ -0,0 +1,167 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "apr_arch_dso.h" +#include "apr_strings.h" +#include "apr_private.h" +#include "apr_arch_file_io.h" +#include "apr_arch_utf8.h" + +#if APR_HAS_DSO + +APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso, + apr_os_dso_handle_t osdso, + apr_pool_t *pool) +{ + *aprdso = apr_pcalloc(pool, sizeof **aprdso); + (*aprdso)->handle = osdso; + (*aprdso)->cont = pool; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso, + apr_dso_handle_t *aprdso) +{ + *osdso = aprdso->handle; + return APR_SUCCESS; +} + +static apr_status_t dso_cleanup(void *thedso) +{ + apr_dso_handle_t *dso = thedso; + + if (dso->handle != NULL && !FreeLibrary(dso->handle)) { + return apr_get_os_error(); + } + dso->handle = NULL; + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_load(struct apr_dso_handle_t **res_handle, + const char *path, apr_pool_t *ctx) +{ + HINSTANCE os_handle; + apr_status_t rv; +#ifndef _WIN32_WCE + UINT em; +#endif + +#if APR_HAS_UNICODE_FS + IF_WIN_OS_IS_UNICODE + { + apr_wchar_t wpath[APR_PATH_MAX]; + if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath) + / sizeof(apr_wchar_t), path)) + != APR_SUCCESS) { + *res_handle = apr_pcalloc(ctx, sizeof(**res_handle)); + return ((*res_handle)->load_error = rv); + } + /* Prevent ugly popups from killing our app */ +#ifndef _WIN32_WCE + em = SetErrorMode(SEM_FAILCRITICALERRORS); +#endif + os_handle = LoadLibraryExW(wpath, NULL, 0); + if (!os_handle) + os_handle = LoadLibraryExW(wpath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH); + if (!os_handle) + rv = apr_get_os_error(); +#ifndef _WIN32_WCE + SetErrorMode(em); +#endif + } +#endif /* APR_HAS_UNICODE_FS */ +#if APR_HAS_ANSI_FS + ELSE_WIN_OS_IS_ANSI + { + char fspec[APR_PATH_MAX], *p = fspec; + /* Must convert path from / to \ notation. + * Per PR2555, the LoadLibraryEx function is very picky about slashes. + * Debugging on NT 4 SP 6a reveals First Chance Exception within NTDLL. + * LoadLibrary in the MS PSDK also reveals that it -explicitly- states + * that backslashes must be used for the LoadLibrary family of calls. + */ + apr_cpystrn(fspec, path, sizeof(fspec)); + while ((p = strchr(p, '/')) != NULL) + *p = '\\'; + + /* Prevent ugly popups from killing our app */ + em = SetErrorMode(SEM_FAILCRITICALERRORS); + os_handle = LoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH); + if (!os_handle) + os_handle = LoadLibraryEx(path, NULL, 0); + if (!os_handle) + rv = apr_get_os_error(); + else + rv = APR_SUCCESS; + SetErrorMode(em); + } +#endif + + *res_handle = apr_pcalloc(ctx, sizeof(**res_handle)); + (*res_handle)->cont = ctx; + + if (rv) { + return ((*res_handle)->load_error = rv); + } + + (*res_handle)->handle = (void*)os_handle; + (*res_handle)->load_error = APR_SUCCESS; + + apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null); + + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_dso_unload(struct apr_dso_handle_t *handle) +{ + return apr_pool_cleanup_run(handle->cont, handle, dso_cleanup); +} + +APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, + struct apr_dso_handle_t *handle, + const char *symname) +{ +#ifdef _WIN32_WCE + apr_size_t symlen = strlen(symname) + 1; + apr_size_t wsymlen = 256; + apr_wchar_t wsymname[256]; + apr_status_t rv; + + rv = apr_conv_utf8_to_ucs2(wsymname, &wsymlen, symname, &symlen); + if (rv != APR_SUCCESS) { + return rv; + } + else if (symlen) { + return APR_ENAMETOOLONG; + } + + *ressym = (apr_dso_handle_sym_t)GetProcAddressW(handle->handle, wsymname); +#else + *ressym = (apr_dso_handle_sym_t)GetProcAddress(handle->handle, symname); +#endif + if (!*ressym) { + return apr_get_os_error(); + } + return APR_SUCCESS; +} + +APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buf, apr_size_t bufsize) +{ + return apr_strerror(dso->load_error, buf, bufsize); +} + +#endif |