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Annotation of 43BSD/usr.bin/learn/makpipe.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)makpipe.c  4.3     (Berkeley)      5/15/86";
        !             3: #endif not lint
        !             4: 
        !             5: #include "stdio.h"
        !             6: 
        !             7: makpipe()
        !             8: {
        !             9:        int f[2];
        !            10: 
        !            11:        pipe(f);
        !            12:        if (fork()==0) {
        !            13:                close(f[1]);
        !            14:                close(0);
        !            15:                dup(f[0]);
        !            16:                close(f[0]);
        !            17: #if BSD4_2
        !            18:                execl ("/bin/sh", "sh", "-i", 0);
        !            19:                execl ("/usr/ucb/bin/sh", "sh", "-i", 0);
        !            20: #else
        !            21:                execlp("/bin/csh", "csh", "-if", 0);
        !            22:                /*execl ("/usr/ucb/bin/csh", "csh", "-if", 0);*/
        !            23: #endif
        !            24:                write(2, "Exec error\n", 11);
        !            25:        }
        !            26:        close(f[0]);
        !            27:        sleep(2);       /* so shell won't eat up too much input */
        !            28:        return(f[1]);
        !            29: }

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