本文整理汇总了C++中check_magic函数的典型用法代码示例。如果您正苦于以下问题：C++ check_magic函数的具体用法？C++ check_magic怎么用？C++ check_magic使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了check_magic函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: is_vfat
static inline bool is_vfat(const void *data, size_t size)
{
return check_magic(data, size, "MSWIN", 5, 0x52)
|| check_magic(data, size, "FAT32 ", 8, 0x52)
|| check_magic(data, size, "MSDOS", 5, 0x36)
|| check_magic(data, size, "FAT16 ", 8, 0x36)
|| check_magic(data, size, "FAT12 ", 8, 0x36)
|| check_magic(data, size, "FAT ", 8, 0x36)
|| check_magic(data, size, "\353", 1, 0)
|| check_magic(data, size, "\351", 1, 0)
|| check_magic(data, size, "\125\252", 2, 0x1fe);
}示例2: ADhash_add
void *
ADhash_add (ADhash_t hash, void *key, void *data)
{
struct hash_t *h;
struct hash_element_t *p, *e;
unsigned int i;
/* Check hash structure validity */
if ((h = check_magic (hash, ADMAGIC_HASH)) == NULL) return (NULL);
/* First check for duplicate key */
p = hash_lookup (h, key);
if (p != NULL) return (NULL);
/* Create new hash element */
NEW_ROF (e, NULL);
e->key = key;
e->data = data;
/* Calculate hash index and add element to bucket */
i = hash_index (h, key); e->bucket = i;
if ((p = h->hash[i]) == NULL) {
h->hash[i] = e;
} else {
while (p->next != NULL) p = p->next;
p->next = e;
}
h->size++;
/* Return new element */
return (data);
}示例3: palloc
static void *core_prealloc(void *blk, size_t size) {
void *new_blk;
palloc_t *m;
/* size == 0: free block */
if(size == 0) {
if(blk != NULL) pfree(blk);
new_blk = NULL;
}
else {
/* allocate a new_blk */
new_blk = palloc(size);
/* if allocation was OK, and if old block exists, copy old block to new */
if(new_blk != NULL && blk != NULL) {
m = (palloc_t *)((char *)blk - sizeof(palloc_t));
if(check_magic(m) == FALSE) {
if(prealloc_error_message(m) == TRUE)
return NULL;
}
/* Copy minimum of old and new block sizes */
if(size > m -> size) size = m -> size;
memcpy(new_blk,blk,size);
/* free the old block */
pfree(blk);
}
}
return new_blk;
}示例4: debug_ADhash_report
void
debug_ADhash_report (FILE *rf, ADhash_t hash, char *msg)
{
struct hash_t *h;
unsigned int i;
struct hash_element_t *p;
/* Check hash structure validity */
if ((h = check_magic (hash, ADMAGIC_HASH)) == NULL) return;
fprintf (rf, "ADhash (%s) = 0x%8.8x\n", msg, h);
fprintf (rf, "buckets = %lu\n", h->buckets);
fprintf (rf, "size = %lu\n", h->size);
fprintf (rf, "\n");
for (i=0; i<h->buckets; i++) {
if (!h->hash[i]) continue;
fprintf (rf, "bucket[%3lu]", i);
p = h->hash[i];
while (p) {
fprintf (rf, " {\"%s\", %lu}", (char *)(p->key), (ULONG)p->data);
p = p->next;
}
fprintf (rf, "\n");
}
fprintf (rf, "\n");
}示例5: pconf_line
/* parse a provided line */
int pconf_line(PCONF_CTX *ctx, const char *line)
{
size_t i, linelen;
if (!check_magic(ctx))
return 0;
ctx->linenum++;
/* start over for the new line */
ctx->numargs = 0;
ctx->state = STATE_FINDWORDSTART;
linelen = strlen(line);
for (i = 0; i < linelen; i++) {
ctx->ch = line[i];
parse_char(ctx);
if (ctx->state == STATE_PARSEERR)
return 1;
if (ctx->state == STATE_ENDOFLINE)
return 1;
}
/* deal with any lingering characters */
/* still building a word? */
if (ctx->wordptr != ctx->wordbuf)
endofword(ctx); /* tie it off */
return 1;
}示例6: program_load_datas
int program_load_datas(t_list *programs)
{
t_list_item *item;
t_program *program;
int header_len;
header_len = MAGIC_LEN + PROG_NAME_LENGTH
+ SIZE_CONTENT_LENGTH + COMMENT_LENGTH + 4;
item = programs->top;
while (item != NULL)
{
program = (t_program *)item->data;
if (load_data(program) == RET_FAILURE)
return (RET_FAILURE);
if (program->data_len < header_len)
return (error_int(RET_FAILURE, ERR_INVALID_HEADER));
else if (program->data_len == header_len)
return (error_int(RET_FAILURE, ERR_CONTENT_EMPTY));
if (check_magic(program->data) == RET_FAILURE)
return (RET_FAILURE);
program->code = program->data + header_len;
program->code_len = program->data_len - header_len;
item = item->next;
}
return (RET_SUCCESS);
}示例7: pconf_file_next
/* read from a file until a whole line is ready for use */
int pconf_file_next(PCONF_CTX *ctx)
{
if (!check_magic(ctx))
return 0;
ctx->linenum++;
/* start over for the new line */
ctx->numargs = 0;
ctx->state = STATE_FINDWORDSTART;
while ((ctx->ch = fgetc(ctx->f)) != EOF) {
parse_char(ctx);
if (ctx->state == STATE_PARSEERR)
return 1;
if (ctx->state == STATE_ENDOFLINE)
return 1;
}
/* deal with files that don't end in a newline */
if (ctx->numargs != 0) {
/* still building a word? */
if (ctx->wordptr != ctx->wordbuf)
endofword(ctx);
return 1;
}
/* finished with nothing left over */
return 0;
}示例8: check_file
/********************************************************************************
*函数名称: check_file
*函数原型: __s32 check_file( __u32 *mem_base, __u32 size, const char *magic )
*函数功能: 使用“算术和”来校验内存中的一段数据
*入口参数: mem_base 待校验的数据在内存中的起始地址（必须是4字节对齐的）
* size 待校验的数据的个数（以字节为单位，必须是4字节对齐的）
* magic magic number, 待校验文件的标识码
*返 回 值: CHECK_IS_CORRECT 校验正确
* CHECK_IS_WRONG 校验错误
*备 注:
********************************************************************************/
__s32 check_file( __u32 *mem_base, __u32 size, const char *magic )
{
if( check_magic( mem_base, magic ) == CHECK_IS_CORRECT
&&check_sum( mem_base, size ) == CHECK_IS_CORRECT )
return CHECK_IS_CORRECT;
else
return CHECK_IS_WRONG;
}示例9: check_file
/********************************************************************************
*函数名称: check_file
*函数原型: __s32 check_file( __u32 *mem_base, __u32 size, const char *magic )
*函数功能: 使用“算术和”来校验内存中的一段数据
*入口参数: mem_base 待校验的数据在内存中的起始地址（必须是4字节对齐的）
* size 待校验的数据的个数（以字节为单位，必须是4字节对齐的）
* magic magic number, 待校验文件的标识码
*返 回 值: CHECK_IS_CORRECT 校验正确
* CHECK_IS_WRONG 校验错误
*备 注:
********************************************************************************/
__s32 check_file( __u32 *mem_base, __u32 size, const char *magic )
{
if( check_magic( mem_base, magic ) == 0
&&check_sum( mem_base, size ) == 0 )
return 0;
else
return -1;
}示例10: ext2fs_clear_generic_bitmap
void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap)
{
if (check_magic(bitmap))
return;
memset(bitmap->bitmap, 0,
(size_t) (((bitmap->real_end - bitmap->start) / 8) + 1));
}示例11: oldmda_detect
static gint
oldmda_detect(const GwyFileDetectInfo *fileinfo,
gboolean only_name)
{
if (only_name)
return g_str_has_suffix(fileinfo->name_lowercase, EXTENSION) ? 10 : 0;
return check_magic(fileinfo->head) ? 100 : 0;
}示例12: ADhash_size
AD_size_t
ADhash_size (ADhash_t hash)
{
struct hash_t *h;
/* Check hash structure validity */
if ((h = check_magic (hash, ADMAGIC_HASH)) == NULL) return (0);
return (h->size);
}示例13: check_file_magic_vik
/*
* Function to determine if a filename is a 'viking' type file
*/
gboolean check_file_magic_vik ( const gchar *filename )
{
gboolean result = FALSE;
FILE *ff = xfopen ( filename );
if ( ff ) {
result = check_magic ( ff, VIK_MAGIC );
xfclose ( ff );
}
return result;
}示例14: RSSIData_rssi
int16_t RSSIData_rssi(const RSSIData *msg) {
check_magic(msg);
if (has_field(msg, 2)) {
return ntohs(msg->rssi);
} else {
fprintf(stderr, "Requested field rssi from RSSIData at address %p, but "
"message do3s not have the field \n",
(void *)msg);
return -1;
}
}示例15: RSSIData_frameNum
int32_t RSSIData_frameNum(const RSSIData *msg) {
check_magic(msg);
if (has_field(msg, 5)) {
return ntohl(msg->frameNum);
} else {
fprintf(stderr, "Requested field frameNum from RSSIData at address %p, but "
"message do3s not have the field \n",
(void *)msg);
return -1;
}
}