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Annotation of 40BSD/lib/libpc/UNSYNC.c, revision 1.1.1.1

1.1       root        1: /* Copyright (c) 1979 Regents of the University of California */
                      2: 
                      3: static char sccsid[] = "@(#)UNSYNC.c 1.1 10/29/80";
                      4: 
                      5: #include "h00vars.h"
                      6: #include "h01errs.h"
                      7: 
                      8: /*
                      9:  * push back last char read to prepare for formatted read
                     10:  */
                     11: UNSYNC(curfile)
                     12: 
                     13:        register struct iorec   *curfile;
                     14: {
                     15:        if (curfile->funit & FWRITE) {
                     16:                ERROR(EREADIT, curfile->pfname);
                     17:                return;
                     18:        }
                     19:        if ((curfile->funit & SYNC) == 0) {
                     20:                ungetc(*curfile->fileptr, curfile->fbuf);
                     21:        }
                     22: }

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