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Annotation of coherent/b/lib/libc/gen/notify.c, revision 1.1.1.1

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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