4 extern uiolen f__reclen;
10 f__external = f__sequential = 1;
12 f__curunit = &f__units[a->ciunit];
13 if (a->ciunit >= MXUNIT || a->ciunit < 0)
14 err (a->cierr, 101, "startio");
16 if (f__curunit->ufd == NULL && fk_open (SEQ, UNF, a->ciunit))
17 err (a->cierr, 114, "sue");
18 f__cf = f__curunit->ufd;
20 err (a->cierr, 103, "sue");
21 if (!f__curunit->useek)
22 err (a->cierr, 103, "sue");
37 if (f__curunit->uwrt && f__nowreading (f__curunit))
38 err (a->cierr, errno, "read start");
39 if (fread ((char *) &f__reclen, sizeof (uiolen), 1, f__cf) != 1)
44 err (a->ciend, EOF, "start");
47 err (a->cierr, errno, "start");
63 if (f__curunit->uwrt != 1 && f__nowwriting (f__curunit))
64 err (a->cierr, errno, "write start");
65 f__recloc = FTELL (f__cf);
66 FSEEK (f__cf, (off_t) sizeof (uiolen), SEEK_CUR);
75 fwrite ((char *) &f__reclen, sizeof (uiolen), 1, f__cf);
78 err (f__elist->cierr, errno, "write end");
81 FSEEK (f__cf, f__recloc, SEEK_SET);
82 fwrite ((char *) &f__reclen, sizeof (uiolen), 1, f__cf);
83 FSEEK (f__cf, loc, SEEK_SET);
91 FSEEK (f__cf, (off_t) (f__reclen - f__recpos + sizeof (uiolen)), SEEK_CUR);