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Annotation of researchv10no/cmd/uucp/rmlock.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * remove uucp lock files if idle
        !             3:  * assume it really is a lockfile;
        !             4:  * assume ascii locks for now (it's easy to fix)
        !             5:  */
        !             6: 
        !             7: #include <stdio.h>
        !             8: 
        !             9: #define        HUGE    30000
        !            10: 
        !            11: main(argc, argv)
        !            12: int argc;
        !            13: char **argv;
        !            14: {
        !            15:        FILE *fp;
        !            16:        int pid;
        !            17: 
        !            18:        if (argc <= 1) {
        !            19:                fprintf(stderr, "usage: %s lockfile ...\n", argv[0]);
        !            20:                exit(1);
        !            21:        }
        !            22:        while (--argc > 0) {
        !            23:                if ((fp = fopen(*++argv, "r")) == NULL) {
        !            24:                        fprintf(stderr, "%s: cannot open\n", *argv);
        !            25:                        continue;
        !            26:                }
        !            27:                if (fscanf(fp, "%d", &pid) != 1 || pid <= 0) {
        !            28:                        fprintf(stderr, "%s: bad format\n", *argv);
        !            29:                        continue;
        !            30:                }
        !            31:                if (kill(pid, 0) >= 0
        !            32:                ||  errno != ESRCH)
        !            33:                        continue;
        !            34:                unlink(*argv);
        !            35:        }
        !            36:        exit(0);
        !            37: }

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