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Annotation of coherent/b/lib/libc/gen/notify.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Routine to notify a user about
        !             3:  * the completion of a transaction
        !             4:  * Usually called by some daemon (e.g.
        !             5:  * line printer daemon).
        !             6:  * Return non-zero on failure.
        !             7:  */
        !             8: 
        !             9: #include <stdio.h>
        !            10: #include <pwd.h>
        !            11: 
        !            12: notify(name, msg)
        !            13: char *name;
        !            14: char *msg;
        !            15: {
        !            16:        register struct passwd *pwp;
        !            17:        int pfd[2];
        !            18:        register int pid, fd;
        !            19:        int status;
        !            20: 
        !            21:        if (*name>='0' && *name<='9')
        !            22:                if ((pwp = getpwuid(atoi(name))) == NULL)
        !            23:                        name = NULL; else
        !            24:                        name = pwp->pw_name;
        !            25:        if (name==NULL || pipe(pfd)<0 || (pid = fork())<0)
        !            26:                return (1);
        !            27:        if (pid) {
        !            28:                close(pfd[0]);
        !            29:                write(pfd[1], msg, strlen(msg));
        !            30:                close(pfd[1]);
        !            31:                while (wait(&status) >= 0)
        !            32:                        ;
        !            33:        } else {
        !            34:                close(pfd[1]);
        !            35:                dup2(pfd[0], 0);
        !            36:                close(pfd[0]);
        !            37:                for (fd=3; fd<_NFILE; fd++)
        !            38:                        close(fd);
        !            39:                execlp("/bin/send", "send", "-s", name, NULL);
        !            40:                return (1);
        !            41:        }
        !            42:        return (0);
        !            43: }

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