projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0148435a KM |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | ||
| 31cef89c | 3 | static char sccsid[] = "@(#)READE.c 1.1 10/29/80"; |
| 0148435a KM |
4 | |
| 5 | #include "h00vars.h" | |
| 6 | #include "h01errs.h" | |
| 7 | ||
| 8 | READE(curfile, name) | |
| 9 | ||
| 10 | register struct iorec *curfile; | |
| 11 | char *name; | |
| 12 | { | |
| 13 | long data; | |
| 14 | ||
| 15 | register short *sptr; | |
| 16 | register int len; | |
| 17 | register int nextlen; | |
| 18 | register int cnt; | |
| 19 | char *cp; | |
| 20 | char namebuf[NAMSIZ]; | |
| 21 | ||
| 22 | if (curfile->funit & FWRITE) { | |
| 23 | ERROR(EREADIT, curfile->pfname); | |
| 24 | return; | |
| 25 | } | |
| 26 | UNSYNC(curfile); | |
| 27 | if (fscanf(curfile->fbuf, | |
| 28 | "%*[ \t\n]%74[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]", | |
| 29 | namebuf) == 0) { | |
| 30 | ERROR(ENUMNTFD, namebuf); | |
| 31 | return; | |
| 32 | } | |
| 33 | curfile->funit |= SYNC; | |
| 34 | for (len = 0; len < NAMSIZ && namebuf[len]; len++) | |
| 35 | /* void */; | |
| 36 | len++; | |
| 37 | sptr = (short *)name; | |
| 38 | cnt = *sptr++; | |
| 39 | cp = name + sizeof (short) + *sptr; | |
| 40 | do { | |
| 41 | nextlen = *sptr++; | |
| 42 | nextlen = *sptr - nextlen; | |
| 43 | if (nextlen == len && RELEQ(len, namebuf, cp)) { | |
| 44 | return *((short *) name) - cnt; | |
| 45 | } | |
| 46 | cp += nextlen; | |
| 47 | } while (--cnt); | |
| 48 | ERROR(ENUMNTFD, namebuf); | |
| 49 | } |