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Annotation of 43BSD/contrib/X/Xlib/XFetchBuffer.c, revision 1.1.1.1

1.1       root        1: #include <X/mit-copyright.h>
                      2: 
                      3: /* $Header: XFetchBuffer.c,v 10.4 86/02/01 15:33:29 tony Rel $ */
                      4: /* Copyright    Massachusetts Institute of Technology    1985  */
                      5: 
                      6: #include "XlibInternal.h"
                      7: 
                      8: caddr_t XFetchBuffer (nbytes, buffer)
                      9:        register int *nbytes;
                     10:        int buffer;
                     11: {
                     12:        register Display *dpy;
                     13:        register XReq *req;
                     14:        XRep rep;
                     15:        char *data;
                     16: 
                     17:        GetReq(X_FetchBytes, 0);
                     18:        req->func = buffer;
                     19:        if (!_XReply(dpy, &rep))
                     20:            return(NULL);
                     21:        if ((*nbytes = rep.param.s[0]) == 0)
                     22:            return (NULL);  /* empty cut buffer */
                     23:        if ((data = (char *) malloc(*nbytes)) == NULL) {
                     24:            errno = ENOMEM;
                     25:            _XIOError(dpy);
                     26:            }
                     27:        _XReadPad (dpy, data, *nbytes);
                     28:        return(data);
                     29: }
                     30: 

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