diff options
Diffstat (limited to 'netbytes.c')
| -rw-r--r-- | netbytes.c | 288 |
1 files changed, 287 insertions, 1 deletions
@@ -468,6 +468,7 @@ int nb_free(netbyte_store *store) } } free(store); + store = NULL; return 0; } @@ -688,11 +689,14 @@ int nb_fread( netbyte_store *store, int fd) uint8_t *nb; if ( store == NULL ) + { return -1; + } if ( fd < 1 ) + { return -2; - + } nb_init( store ); @@ -722,6 +726,8 @@ int nb_fread( netbyte_store *store, int fd) return -6; } + free(nb); nb=NULL; + return 0; } @@ -763,4 +769,284 @@ int nb_print(netbyte_store *store) } return 0; +} + +nb_tok_arr *nb_tok_create(int size) +{ + nb_tok_arr *ret=NULL; + + ret = malloc(sizeof(nb_tok_arr)); + memset(ret,0,sizeof(nb_tok_arr)); + + ret->tok = malloc(sizeof(nb_tok)*size); + memset(ret->tok, 0, sizeof(nb_tok)*size); + + ret->size = size; + ret->len = 0; + + return ret; +} + +int nb_tok_add(nb_tok_arr *arr, int sign, int type_size, int len, int farr) +{ + if (arr==NULL) + { + return -1; + } + + if (arr->len >= arr->size-1) + { + return -1; + } + + + arr->tok[arr->len].sign = sign; + arr->tok[arr->len].type_size = type_size; + arr->tok[arr->len].len = len; + arr->tok[arr->len].arr = farr; + arr->len += 1; + + return 0; +} + +void nb_tok_destroy(nb_tok_arr *arr) +{ + if (arr == NULL) + { + return; + } + + if (arr->tok) + { + free(arr->tok); + arr->tok = NULL; + } + + free(arr); + arr = NULL; +} + +#define S_START 1 +#define S_SIGN 2 +#define S_SIZE 3 +#define S_NUMBER 4 +#define S_COMM 5 +#define S_ERR 6 +#define S_LBREAK 7 +#define S_RBREAK 8 +#define S_ARRSIZE 9 +#define S_END 10 +#define S_STARTE 11 + +#define MATCH(CH) ((*c)==(CH)) +#define MATCHDIG() (isdigit(*c)) +#define MOVE() c++; + +int parse_num(char *s, char *e) +{ + const int num_sz = 17; + int str_sz=-1; + char num[num_sz]; + + memset(num, 0, num_sz); + + str_sz = e-s; + if (str_sz>num_sz-1) + { + printf("ERROR\n"); + return -1; + } + memcpy(num,s,str_sz); + + return atoi(num); +} + +int parse(char *str, nb_tok_arr *arr) +{ + int cnt; + nb_tok tok; + int state = S_START; + char *c; + c = str; + char *st=NULL,*en=NULL; + int ret = 0; + + memset(&tok, 0, sizeof(tok)); + + while (*c!=0) + { + printf("[%c] ",*c); + switch (state) + { + case S_START: + { + printf("START\n"); + + if (MATCH('u')) + { + tok.sign = SIGN_UNSIGNED; + state = S_SIGN; + } else if (MATCH('i')) + { + tok.sign = SIGN_SIGNED; + state = S_SIGN; + } else + { + state = S_ERR; + } + break; + } + case S_STARTE: + { + printf("STARTE\n"); + printf("S:%d TS:%d L:%d A:%d\n", + tok.sign, tok.type_size, tok.len, tok.arr + ); + nb_tok_add(arr, tok.sign, tok.type_size, tok.len, tok.arr); + memset(&tok,0,sizeof(nb_tok)); + state = S_START; + break; + } + case S_SIGN: + { + printf("SIGN\n"); + if (MATCH('i')) + { + state = S_SIZE; + MOVE(); + } else if (MATCH('u')) + { + state = S_SIZE; + MOVE(); + } else + { + state = S_ERR; + } + break; + } + case S_SIZE: + { + printf("SIZE\n"); + if (MATCHDIG()) + { + if (st==NULL) st=c; + MOVE(); + } else if (MATCH(',')) + { + en=c; + tok.type_size = parse_num(st,en); + en=NULL; st=NULL; + + state = S_STARTE; + MOVE(); + } else if (MATCH('[')) + { + en=c; + tok.type_size = parse_num(st,en); + en=NULL; st=NULL; + + state = S_LBREAK; + MOVE(); + } else if (MATCH(' ')) + { + en=c; + tok.type_size = parse_num(st,en); + en=NULL; st=NULL; + + state = S_END; + } else + { + state = S_ERR; + } + break; + } + case S_NUMBER: + { + printf("NUMBER\n"); + if (MATCHDIG()) + { + if(st==NULL) st=c; + + MOVE(); + } else if (MATCH(']')) + { + en=c; + tok.type_size = parse_num(st,en); + tok.arr = 1; + en=NULL; st=NULL; + + state = S_RBREAK; + MOVE(); + } + break; + } + case S_COMM: + { + printf("COMM\n"); + state = S_STARTE; + MOVE(); + break; + } + case S_ERR: + { + printf("ERR\n"); + state = -1; + break; + } + case S_LBREAK: + { + printf("LBREAK\n"); + if (MATCHDIG()) + { + state = S_NUMBER; + } else if (MATCH(']')) + { + state = S_RBREAK; + MOVE(); + } else + { + state = S_ERR; + } + break; + } + case S_RBREAK: + { + printf("RBREAK\n"); + if (MATCH(',')) + { + state = S_COMM; + } else + { + state = S_END; + } + break; + } + case S_ARRSIZE: + { + printf("ARRSIZE\n"); + break; + } + case S_END: + { + printf("END\n"); + printf("S:%d TS:%d L:%d A:%d\n", + tok.sign, tok.type_size, tok.len, tok.arr + ); + nb_tok_add(arr, tok.sign, tok.type_size, tok.len, tok.arr); + memset(&tok,0,sizeof(nb_tok)); + state = -1; + break; + } + default: + { + + } + + } + cnt++; + if (cnt>32) break; + if (state == -1) break; + } + + return ret; }
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