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Annotation of 3BSD/cmd/lock.c, revision 1.1.1.1

1.1       root        1: #include <stdio.h>
                      2: #include <sys/types.h>
                      3: #include <stat.h>
                      4: #include <signal.h>
                      5: #include <sgtty.h>
                      6: 
                      7: /*
                      8:  * Lock a terminal up until the knowledgeable Joe returns.
                      9:  */
                     10: char   masterp[] =     "hasta la vista\n";
                     11: struct sgttyb tty, ntty;
                     12: char   s[BUFSIZ], s1[BUFSIZ];
                     13: 
                     14: main(argc, argv)
                     15:        char **argv;
                     16: {
                     17:        register int t;
                     18:        struct stat statb;
                     19: 
                     20:        for (t = 1; t <= 16; t++)
                     21:                signal(t, SIG_IGN);
                     22:        if (argc > 0)
                     23:                argv[0] = 0;
                     24:        if (gtty(0, &tty))
                     25:                exit(1);
                     26:        ntty = tty; ntty.sg_flags &= ~ECHO;
                     27:        stty(0, &ntty);
                     28:        printf("Key: ");
                     29:        fgets(s, sizeof s, stdin);
                     30:        printf("\nAgain: ");
                     31:        fgets(s1, sizeof s1, stdin);
                     32:        putchar('\n');
                     33:        if (strcmp(s1, s)) {
                     34:                putchar(07);
                     35:                stty(0, &tty);
                     36:                exit(1);
                     37:        }
                     38:        s[0] = 0;
                     39:        for (;;) {
                     40:                fgets(s, sizeof s, stdin);
                     41:                if (strcmp(s1, s) == 0)
                     42:                        break;
                     43:                if (strcmp(s, masterp) == 0)
                     44:                        break;
                     45:                putchar(07);
                     46:                if (gtty(0, &ntty))
                     47:                        exit(1);
                     48:        }
                     49:        stty(0, &tty);
                     50: }

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