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- LISTING 8 - Shows how to register a signal handler
-
- /* ignore.c: Ignores interactive attention key */
- #include <stdio.h>
- #include <signal.h>
-
- main()
- {
- char buf[BUFSIZ];
- int i;
-
- /* Ignore keyboard interruptions */
- signal(SIGINT,SIG_IGN);
-
- while (gets(buf))
- puts(buf);
-
- /* Restore default attention key handling
- so the user can abort form the keyboard */
- signal(SIGINT,SIG_DFL);
- for (i = 1; ; ++i)
- printf("%d%c",i,(i%15 ? ' ' : '\n'));
- }
-
- /* Sample Execution
- c:>ignore
- hello
- hello
- ^C
- there
- there
- ^C
- ^Z
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
- 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
- 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
- 61 62 63 64 65 66 67 ^C
- */
-