又找到一段C解析代码, 供参考 | #ifdef WIN32 | | #define _CRT_SECURE_NO_WARNINGS | | #endif | | | | #include <stdio.h> | | #include <wchar.h> | | #include <errno.h> | | #include <stdlib.h> | | #include <string.h> | | #include <malloc.h> | | #include <sys/stat.h> | | #include "zlib/zconf.h" | | #include "zlib/zlib.h" | | | | const static wchar_t key[] = { L'@', L'G', L'a', L'w', L'^', L'2', | | L't', L'G', L'Q', L'6', L'1', L'-', | | L'Î', L'ò', L'n', L'i'}; | | | | static unsigned char result[1024*1024]; | | | | int sncasecmp(char *s1, char *s2, size_t n) | | { | | unsigned int c1, c2; | | | | while (n) { | | c1 = (unsigned int)*s1++; | | c2 = (unsigned int)*s2++; | | | | c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; | | c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; | | | | if (c1 == c2) { | | | | if (c1) { | | n--; | | continue; | | } | | | | return 0; | | } | | | | return c1 - c2; | | } | | | | return 0; | | } | | | | int decompression(unsigned char *src, size_t srcsize, unsigned char *dst, size_t *dstsize) | | { | | *dstsize = 1024 * 1024; | | if (Z_OK != uncompress(result, dstsize, src, srcsize)) | | return -1; | | | | return 0; | | } | | | | int isfilter(char *tok, int len) | | { | | if (!sncasecmp(tok, "[id", 3)) { | | return 1; | | } else if (!sncasecmp(tok, "[by", 3)) { | | return 1; | | } else if (!sncasecmp(tok, "[hash", 5)) { | | return 1; | | } else if (!sncasecmp(tok, "[al", 3)) { | | return 1; | | } else if (!sncasecmp(tok, "[sign", 5)) { | | return 1; | | } else if (!sncasecmp(tok, "[total", 6)) { | | return 1; | | } else if (!sncasecmp(tok, "[offset", 7)) { | | return 1; | | } | | | | return 0; | | } | | | | int create_lrc(char *path, unsigned char *lrc, size_t lrclen) | | { | | size_t i; | | FILE *fp; | | int top = 0; | | int j; | | | | fp = fopen(path, "wb"); | | if (!fp) { | | fprintf(stderr, "%s", strerror(errno)); | | return -1; | | } | | | | for (i = 0; i < lrclen; i++) { | | int len; | | if (top == 0) { | | switch (lrc[i]) { | | case '<': | | top++; | | break; | | case '[': | | len = (strchr((char*)&lrc[i], ']') - (char*)&lrc[i]) + 1; | | | | for (j = 0; j < len; j++) { | | if (lrc[i+j] == ':') { | | if (isfilter((char*)&lrc[i], len)) { | | while (lrc[++i] != '\n' && i < lrclen) { | | } | | } | | goto filter_done; | | } | | } | | | | for (j = 0; j < len; j++) { | | int ms; | | | | if (lrc[i + j] == ',') { | | char ftime[14]; | | lrc[i + j] = 0; | | | | ms = atoi((char*)&lrc[i + 1]); | | sprintf(ftime, "[%.2d:%.2d.%.2d]", (ms % (1000 * 60 * 60)) / (1000 * 60), (ms % (1000 * 60)) / 1000, (ms % (1000 * 60)) % 100); | | | | for (j = 0; j < 10; j++) { | | fputc(ftime[j], fp); | | } | | | | i = i + len - 1; | | break; | | } | | } | | break; | | filter_done: | | default: | | fputc(lrc[i], fp); | | break; | | } | | | | } else if (top == 1 && lrc[i] == '>') { | | top--; | | } | | } | | | | fclose(fp); | | | | return 0; | | } | | | | int main(int argc, char **argv) | | { | | int i; | | FILE *fp; | | struct stat st; | | unsigned char *src; | | size_t dstsize; | | | | if (argc < 2) { | | printf("usage1: krc2lrc test.krc test.lrc\nusage2: krc2lrc test.krc\n"); | | return -1; | | } | | | | fp = fopen(argv[1], "rb"); | | if (!fp) { | | fprintf(stderr, "%s", strerror(errno)); | | return -1; | | } | | | | if (fstat(fileno(fp), &st)) { | | fprintf(stderr, "%s", strerror(errno)); | | return -1; | | } | | | | src = (unsigned char *) malloc(st.st_size); | | if (!src) { | | fprintf(stderr, "%s", strerror(errno)); | | return -1; | | } | | | | if (fread(src, sizeof(unsigned char), st.st_size, fp) != st.st_size) { | | fprintf(stderr, "%s", strerror(errno)); | | return -1; | | } | | | | if (memcmp(src, "krc1", 4) != 0) { | | fprintf(stderr, "error file format."); | | } | | | | src += 4; | | for (i = 0; i < st.st_size; i++) { | | src[i] = (unsigned char)(src[i] ^ key[i % 16]); | | } | | | | decompression(src, st.st_size, result, &dstsize); | | | | if (argc == 2) { | | char buf[FILENAME_MAX] = {0}; | | strncpy(buf, argv[1], strlen(argv[1]) - 4); | | strcat(buf, ".lrc"); | | create_lrc(buf, result, dstsize); | | } else if (argc == 3){ | | create_lrc(argv[2], result, dstsize); | | } | | | | fclose(fp); | | return 0; | | }COPY |
|
发表于 2022-1-17 12:14
| 
oadFile($cur_dir+'zlib.dll')
[], MethodInvocationException
0356EC8B]