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Annotation of 41BSD/games/compat/modshell/v6flag.c, revision 1.1

1.1     ! root        1: #
        !             2: /* flag version 6 a.outs by putting a 1 in word 6 */
        !             3: #include <stdio.h>
        !             4: #include <sys/types.h>
        !             5: #include <sys/stat.h>
        !             6: struct stat stbuf;
        !             7: int    fd;
        !             8: short  hbuf[8];
        !             9: time_t timep[2];
        !            10: main(argc, argv) char *argv[]; {
        !            11:        if(stat(argv[1], &stbuf) < 0) exit(0);
        !            12:        if(!(stbuf.st_mode & S_IEXEC)) exit(0);
        !            13:        if((fd = open(argv[1], 2)) < 0) exit(0);
        !            14:        if(read(fd, hbuf, sizeof hbuf) != sizeof hbuf) exit(0);
        !            15:        lseek(fd, 0L, 0);
        !            16:        if(hbuf[0]!=0407&&hbuf[0]!=0410&&hbuf[0]!=0411&&hbuf[0]!=0405) exit(0);
        !            17:        if(hbuf[6] != 0) exit(0);
        !            18:        hbuf[6] = 01;
        !            19:        if(write(fd, hbuf, sizeof hbuf) != sizeof hbuf) exit(0);
        !            20:        close(fd);
        !            21:        timep[0] = stbuf.st_atime;
        !            22:        timep[1] = stbuf.st_mtime;
        !            23:        utime(argv[1], timep);
        !            24:        printf("%s fixed\n",argv[1]);
        !            25: }

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