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

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

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