diff options
Diffstat (limited to 'src/sss_client/libwbclient/wbclient_common.c')
-rw-r--r-- | src/sss_client/libwbclient/wbclient_common.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/sss_client/libwbclient/wbclient_common.c b/src/sss_client/libwbclient/wbclient_common.c new file mode 100644 index 000000000..4189a349c --- /dev/null +++ b/src/sss_client/libwbclient/wbclient_common.c @@ -0,0 +1,178 @@ +/* + Unix SMB/CIFS implementation. + + Winbind client API + + Copyright (C) Gerald (Jerry) Carter 2007 + + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Required Headers */ + +#include "libwbclient.h" + +/** @brief Translate an error value into a string + * + * @param error + * + * @return a pointer to a static string + **/ +const char *wbcErrorString(wbcErr error) +{ + switch (error) { + case WBC_ERR_SUCCESS: + return "WBC_ERR_SUCCESS"; + case WBC_ERR_NOT_IMPLEMENTED: + return "WBC_ERR_NOT_IMPLEMENTED"; + case WBC_ERR_UNKNOWN_FAILURE: + return "WBC_ERR_UNKNOWN_FAILURE"; + case WBC_ERR_NO_MEMORY: + return "WBC_ERR_NO_MEMORY"; + case WBC_ERR_INVALID_SID: + return "WBC_ERR_INVALID_SID"; + case WBC_ERR_INVALID_PARAM: + return "WBC_ERR_INVALID_PARAM"; + case WBC_ERR_WINBIND_NOT_AVAILABLE: + return "WBC_ERR_WINBIND_NOT_AVAILABLE"; + case WBC_ERR_DOMAIN_NOT_FOUND: + return "WBC_ERR_DOMAIN_NOT_FOUND"; + case WBC_ERR_INVALID_RESPONSE: + return "WBC_ERR_INVALID_RESPONSE"; + case WBC_ERR_NSS_ERROR: + return "WBC_ERR_NSS_ERROR"; + case WBC_ERR_UNKNOWN_USER: + return "WBC_ERR_UNKNOWN_USER"; + case WBC_ERR_UNKNOWN_GROUP: + return "WBC_ERR_UNKNOWN_GROUP"; + case WBC_ERR_AUTH_ERROR: + return "WBC_ERR_AUTH_ERROR"; + case WBC_ERR_PWD_CHANGE_FAILED: + return "WBC_ERR_PWD_CHANGE_FAILED"; + } + + return "unknown wbcErr value"; +} + +#define WBC_MAGIC (0x7a2b0e1e) +#define WBC_MAGIC_FREE (0x875634fe) + +struct wbcMemPrefix { + uint32_t magic; + void (*destructor)(void *ptr); +}; + +static size_t wbcPrefixLen(void) +{ + size_t result = sizeof(struct wbcMemPrefix); + return (result + 15) & ~15; +} + +static struct wbcMemPrefix *wbcMemToPrefix(void *ptr) +{ + return (struct wbcMemPrefix *)((void *)(((char *)ptr) - wbcPrefixLen())); +} + +void *wbcAllocateMemory(size_t nelem, size_t elsize, + void (*destructor)(void *ptr)) +{ + struct wbcMemPrefix *result; + + if (nelem >= (2<<24)/elsize) { + /* basic protection against integer wrap */ + return NULL; + } + + result = (struct wbcMemPrefix *)calloc( + 1, nelem*elsize + wbcPrefixLen()); + if (result == NULL) { + return NULL; + } + result->magic = WBC_MAGIC; + result->destructor = destructor; + return ((char *)result) + wbcPrefixLen(); +} + +/* Free library allocated memory */ +void wbcFreeMemory(void *p) +{ + struct wbcMemPrefix *wbcMem; + + if (p == NULL) { + return; + } + wbcMem = wbcMemToPrefix(p); + if (wbcMem->magic != WBC_MAGIC) { + return; + } + + /* paranoid check to ensure we don't double free */ + wbcMem->magic = WBC_MAGIC_FREE; + + if (wbcMem->destructor != NULL) { + wbcMem->destructor(p); + } + free(wbcMem); + return; +} + +char *wbcStrDup(const char *str) +{ + char *result; + size_t len; + + len = strlen(str); + result = (char *)wbcAllocateMemory(len+1, sizeof(char), NULL); + if (result == NULL) { + return NULL; + } + memcpy(result, str, len+1); + return result; +} + +static void wbcStringArrayDestructor(void *ptr) +{ + char **p = (char **)ptr; + while (*p != NULL) { + free(*p); + p += 1; + } +} + +const char **wbcAllocateStringArray(int num_strings) +{ + return (const char **)wbcAllocateMemory( + num_strings + 1, sizeof(const char *), + wbcStringArrayDestructor); +} + +wbcErr wbcLibraryDetails(struct wbcLibraryDetails **_details) +{ + struct wbcLibraryDetails *info; + + info = (struct wbcLibraryDetails *)wbcAllocateMemory( + 1, sizeof(struct wbcLibraryDetails), NULL); + + if (info == NULL) { + return WBC_ERR_NO_MEMORY; + } + + info->major_version = WBCLIENT_MAJOR_VERSION; + info->minor_version = WBCLIENT_MINOR_VERSION; + info->vendor_version = WBCLIENT_VENDOR_VERSION; + + *_details = info; + return WBC_ERR_SUCCESS; +} |