projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0148435a KM |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | ||
| 492cc5d3 | 3 | static char sccsid[] = "@(#)READE.c 1.4 %G%"; |
| 0148435a KM |
4 | |
| 5 | #include "h00vars.h" | |
| 6 | #include "h01errs.h" | |
| 7 | ||
| 492cc5d3 | 8 | long |
| 0148435a KM |
9 | READE(curfile, name) |
| 10 | ||
| 11 | register struct iorec *curfile; | |
| 12 | char *name; | |
| 13 | { | |
| 0148435a KM |
14 | register short *sptr; |
| 15 | register int len; | |
| 16 | register int nextlen; | |
| 17 | register int cnt; | |
| 18 | char *cp; | |
| 19 | char namebuf[NAMSIZ]; | |
| 53909d1e | 20 | int retval; |
| 0148435a KM |
21 | |
| 22 | if (curfile->funit & FWRITE) { | |
| 23 | ERROR(EREADIT, curfile->pfname); | |
| 24 | return; | |
| 25 | } | |
| 26 | UNSYNC(curfile); | |
| 53909d1e | 27 | retval = fscanf(curfile->fbuf, |
| 0148435a | 28 | "%*[ \t\n]%74[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]", |
| 53909d1e KM |
29 | namebuf); |
| 30 | if (retval == EOF) { | |
| 31 | ERROR(EPASTEOF, curfile->pfname); | |
| 32 | return; | |
| 33 | } | |
| 34 | if (retval == 0) { | |
| 0148435a KM |
35 | ERROR(ENUMNTFD, namebuf); |
| 36 | return; | |
| 37 | } | |
| e5053b93 | 38 | curfile->funit &= ~EOLN; |
| 0148435a KM |
39 | curfile->funit |= SYNC; |
| 40 | for (len = 0; len < NAMSIZ && namebuf[len]; len++) | |
| 41 | /* void */; | |
| 42 | len++; | |
| 43 | sptr = (short *)name; | |
| 44 | cnt = *sptr++; | |
| 45 | cp = name + sizeof (short) + *sptr; | |
| 46 | do { | |
| 47 | nextlen = *sptr++; | |
| 48 | nextlen = *sptr - nextlen; | |
| 49 | if (nextlen == len && RELEQ(len, namebuf, cp)) { | |
| 50 | return *((short *) name) - cnt; | |
| 51 | } | |
| 492cc5d3 | 52 | cp += (int)nextlen; |
| 0148435a KM |
53 | } while (--cnt); |
| 54 | ERROR(ENUMNTFD, namebuf); | |
| 55 | } |