安卓7.0新系统解包软件

/* by munjeni @ 2017 */ #ifdef _WIN32 #define __USE_MINGW_ANSI_STDIO 1 #endif #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <fcntl.h> #ifdef HAS_STDINT_H #include <stdint.h> #endif #ifdef unix #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #else #include <direct.h> #include <io.h> #endif #define MAGIC 0xF97CFF8A #define S_IFMT 00170000 #define S_IFSOCK 0140000 #define S_IFLNK 0120000 #define S_IFREG 0100000 #define S_IFBLK 0060000 #define S_IFDIR 0040000 #define S_IFCHR 0020000 #define S_IFIFO 0010000 #define S_ISUID 0004000 #define S_ISGID 0002000 #define S_ISVTX 0001000 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) char *mode_to_string(unsigned int mode) { if (S_ISBLK(mode)) return "-b"; else if (S_ISCHR(mode)) return "-c"; else if (S_ISDIR(mode)) return "-d"; else if (S_ISFIFO(mode)) return "-p"; else if (S_ISLNK(mode)) return "-l"; else if (S_ISSOCK(mode)) return "-s"; else if (S_ISREG(mode)) return "--"; else return ""; } int main(int argc, char *argv[]) { unsigned int selinux_vers; unsigned int nothing; unsigned int i; unsigned int steams; unsigned int num_of_regex; char steam[256]; char src[512]; char context[512]; FILE *fp = NULL; FILE *fpout = NULL; if (argc != 3) { printf("usage: %s BINARY_FILE OUTPUT_TEXT_FILE\n", argv[0]); printf("e.g: %s file_contexts.bin file_contexts\n", argv[0]); return 1; } if ((fp = fopen(argv[1], "rb")) == NULL) { printf("Unable to open %s : ", argv[1]); perror(""); return 1; } fread(&nothing, 1, 4, fp); if (nothing != MAGIC) { printf("%s is not a binary!\n", argv[1]); if (fp) fclose(fp); return 1; } fread(&nothing, 1, 4, fp); selinux_vers = nothing; fread(&nothing, 1, 4, fp); fseek(fp, (unsigned int)ftell(fp) + nothing, SEEK_SET); fread(&nothing, 1, 4, fp); //printf("num of steams: 0x%x\n", nothing); for (i=0; i<nothing; ++i) { fread(&steams, 1, 4, fp); fread(steam, 1, steams+1, fp); //printf("%s\n", steam); } fread(&num_of_regex, 1, 4, fp); //printf("num of regex: 0x%x\n", num_of_regex); if ((fpout = fopen(argv[2], "wb")) == NULL) { printf("unable to open %s for write!\n", argv[2]); if (fp) fclose(fp); return 1; } //printf("selinux version: %d\n", selinux_vers); fprintf(fpout, "#context version %d\n", selinux_vers); for (i=0; i<num_of_regex; ++i) { fread(&nothing, 1, 4, fp); fread(context, 1, nothing, fp); fread(&nothing, 1, 4, fp); fread(src, 1, nothing, fp); //printf("%s %s\n", src, context); fread(&nothing, 1, 4, fp); fprintf(fpout, "%s\t%s\t%s\n", src, mode_to_string(nothing), context); fseek(fp, (unsigned int)ftell(fp) + 12, SEEK_SET); fread(&nothing, 1, 4, fp); fseek(fp, (unsigned int)ftell(fp) + nothing, SEEK_SET); fread(&nothing, 1 , 4, fp); fread(&nothing, 1 , 4, fp); fseek(fp, (unsigned int)ftell(fp) + nothing - 4, SEEK_SET); } if (fp) fclose(fp); if (fpout) fclose(fpout); return 0; }