diff options
Diffstat (limited to 'framework/src/suricata/src/util-fmemopen.c')
| -rw-r--r-- | framework/src/suricata/src/util-fmemopen.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/framework/src/suricata/src/util-fmemopen.c b/framework/src/suricata/src/util-fmemopen.c deleted file mode 100644 index 0a20b80b..00000000 --- a/framework/src/suricata/src/util-fmemopen.c +++ /dev/null @@ -1,198 +0,0 @@ -/* Copyright (C) 2007-2010 Open Information Security Foundation - * - * You can copy, redistribute or modify this Program under the terms of - * the GNU General Public License version 2 as published by the Free - * Software Foundation. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/** - * \file - * - * \author Pablo Rincon Crespo <pablo.rincon.crespo@gmail.com> - * Based on FMem.c of Alexandre Flori (2008/10/17 AF) - */ - -#include "suricata-common.h" -#include "util-fmemopen.h" - -#ifdef OS_DARWIN -#define USE_FMEM_WRAPPER 1 -#endif - -#ifdef OS_FREEBSD -#define USE_FMEM_WRAPPER 1 -#endif - -#ifdef __OpenBSD__ -#define USE_FMEM_WRAPPER 1 -#endif - -#ifdef USE_FMEM_WRAPPER - -#ifdef OS_WIN32 - -/** - * \brief portable version of SCFmemopen for Windows works on top of real temp files - * \param buffer that holds the file content - * \param size of the file buffer - * \param mode mode of the file to open - * \retval pointer to the file; NULL if something is wrong - */ -FILE *SCFmemopen(void *buf, size_t size, const char *mode) -{ - char temppath[MAX_PATH - 13]; - if (0 == GetTempPath(sizeof(temppath), temppath)) - return NULL; - - char filename[MAX_PATH + 1]; - if (0 == GetTempFileName(temppath, "SC", 0, filename)) - return NULL; - - FILE *f = fopen(filename, "wb"); - if (NULL == f) - return NULL; - - fwrite(buf, size, 1, f); - fclose(f); - - return fopen(filename, mode); -} - -#else - -typedef struct SCFmem_ { - size_t pos; - size_t size; - char *buffer; -} SCFmem; - -/** - * \brief Seek the mem file from offset and whence - * \param handler pointer to the memfile - * \param osffset number of bytes to move from whence - * \param whence SEEK_SET, SEEK_CUR, SEEK_END - * \retval pos the position by the last operation, -1 if sizes are out of bounds - */ -static fpos_t SeekFn(void *handler, fpos_t offset, int whence) -{ - size_t pos = 0; - SCFmem *mem = handler; - - switch (whence) { - case SEEK_SET: - if (offset >= 0 && (size_t)offset <= mem->size) { - return mem->pos = offset; - } - break; - case SEEK_CUR: - if (mem->pos + offset <= mem->size) - return mem->pos += offset; - break; - case SEEK_END: - /* must be negative */ - if (mem->size + offset <= mem->size) - return pos = mem->size + offset; - break; - } - - return -1; -} - -/** - * \brief Read from the buffer looking for the available memory limits - * \param handler pointer to the memfile - * \param buf buffer to read from the handler - * \param number of bytes to read - * \retval count , the number of bytes read - */ -static int ReadFn(void *handler, char *buf, int size) -{ - size_t count = 0; - SCFmem *mem = handler; - size_t available = mem->size - mem->pos; - int is_eof = 0; - - if (size < 0) return - 1; - - if ((size_t)size > available) { - size = available; - } else { - is_eof = 1; - } - - while (count < (size_t)size) - buf[count++] = mem->buffer[mem->pos++]; - - if (is_eof == 1) - return 0; - - return count; -} - -/** - * \brief Write into the buffer looking for the available memory limits - * \param handler pointer to the memfile - * \param buf buffer to write in the handler - * \param number of bytes to write - * \retval count , the number of bytes writen - */ -static int WriteFn(void *handler, const char *buf, int size) -{ - size_t count = 0; - SCFmem *mem = handler; - size_t available = mem->size - mem->pos; - - if (size < 0) return - 1; - - if ((size_t)size > available) - size = available; - - while (count < (size_t)size) - mem->buffer[mem->pos++] = buf[count++]; - - return count; -} - -/** - * \brief close the mem file handler - * \param handler pointer to the memfile - * \retval 0 on succesful - */ -static int CloseFn(void *handler) -{ - SCFree(handler); - return 0; -} - -/** - * \brief portable version of SCFmemopen for OS X / BSD built on top of funopen() - * \param buffer that holds the file content - * \param size of the file buffer - * \param mode mode of the file to open - * \retval pointer to the file; NULL if something is wrong - */ -FILE *SCFmemopen(void *buf, size_t size, const char *mode) -{ - SCFmem *mem = (SCFmem *) SCMalloc(sizeof(SCFmem)); - if (mem == NULL) - return NULL; - - memset(mem, 0, sizeof(SCFmem)); - mem->size = size, mem->buffer = buf; - - return funopen(mem, ReadFn, WriteFn, SeekFn, CloseFn); -} - -#endif /* OS_WIN32 */ - -#endif /* USE_FMEM_WRAPPER */ |