projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d8887343 KB |
1 | /*- |
| 2 | * Copyright (c) 1991 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * %sccs.include.redist.c% | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef lint | |
| 3ac03562 | 9 | static char sccsid[] = "@(#)cchar.c 5.4 (Berkeley) %G%"; |
| d8887343 KB |
10 | #endif /* not lint */ |
| 11 | ||
| 12 | #include <sys/types.h> | |
| d8887343 | 13 | #include <stddef.h> |
| 14cc5c1c KB |
14 | #include <stdlib.h> |
| 15 | #include <string.h> | |
| d8887343 | 16 | #include "stty.h" |
| 14cc5c1c | 17 | #include "extern.h" |
| d8887343 KB |
18 | |
| 19 | /* | |
| 20 | * Special control characters. | |
| 21 | * | |
| 22 | * Cchars1 are the standard names, cchars2 are the old aliases. | |
| 23 | * The first are displayed, but both are recognized on the | |
| 24 | * command line. | |
| 25 | */ | |
| 26 | struct cchar cchars1[] = { | |
| 27 | "discard", VDISCARD, CDISCARD, | |
| 28 | "dsusp", VDSUSP, CDSUSP, | |
| 29 | "eof", VEOF, CEOF, | |
| 30 | "eol", VEOL, CEOL, | |
| 31 | "eol2", VEOL2, CEOL, | |
| 32 | "erase", VERASE, CERASE, | |
| 33 | "intr", VINTR, CINTR, | |
| 34 | "kill", VKILL, CKILL, | |
| 35 | "lnext", VLNEXT, CLNEXT, | |
| 36 | "quit", VQUIT, CQUIT, | |
| 37 | "reprint", VREPRINT, CREPRINT, | |
| 38 | "start", VSTART, CSTART, | |
| 39 | "status", VSTATUS, CSTATUS, | |
| 40 | "stop", VSTOP, CSTOP, | |
| 41 | "susp", VSUSP, CSUSP, | |
| 42 | "werase", VWERASE, CWERASE, | |
| 3ac03562 | 43 | NULL, |
| d8887343 KB |
44 | }; |
| 45 | ||
| 46 | struct cchar cchars2[] = { | |
| 47 | "brk", VEOL, CEOL, | |
| 48 | "flush", VDISCARD, CDISCARD, | |
| 49 | "rprnt", VREPRINT, CREPRINT, | |
| 50 | "xoff", VSTOP, CSTOP, | |
| 51 | "xon", VSTART, CSTART, | |
| 3ac03562 | 52 | NULL, |
| d8887343 | 53 | }; |
| 14cc5c1c KB |
54 | |
| 55 | csearch(argvp, ip) | |
| 56 | char ***argvp; | |
| 57 | struct info *ip; | |
| 58 | { | |
| 59 | extern char *usage; | |
| 60 | register struct cchar *cp; | |
| 61 | struct cchar tmp; | |
| 62 | char *arg, *name; | |
| 63 | static int c_cchar __P((const void *, const void *)); | |
| 64 | ||
| 65 | name = **argvp; | |
| 66 | ||
| 67 | tmp.name = name; | |
| 68 | if (!(cp = (struct cchar *)bsearch(&tmp, cchars1, | |
| 3ac03562 | 69 | sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar), |
| 14cc5c1c | 70 | c_cchar)) && !(cp = (struct cchar *)bsearch(&tmp, cchars1, |
| 3ac03562 | 71 | sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar), |
| 14cc5c1c KB |
72 | c_cchar))) |
| 73 | return(0); | |
| 74 | ||
| 75 | arg = *++*argvp; | |
| 76 | if (!arg) | |
| 77 | err("option requires an argument -- %s\n%s", name, usage); | |
| 78 | ||
| 79 | #define CHK(s) (*name == s[0] && !strcmp(name, s)) | |
| 80 | if (CHK("undef") || CHK("<undef>")) | |
| 81 | ip->t.c_cc[cp->sub] = _POSIX_VDISABLE; | |
| 82 | else if (arg[0] == '^') | |
| 83 | ip->t.c_cc[cp->sub] = (arg[1] == '?') ? 0177 : | |
| 84 | (arg[1] == '-') ? _POSIX_VDISABLE : arg[1] & 037; | |
| 85 | else | |
| 86 | ip->t.c_cc[cp->sub] = arg[0]; | |
| 87 | ip->set = 1; | |
| 88 | return(1); | |
| 89 | } | |
| 90 | ||
| 91 | static | |
| 92 | c_cchar(a, b) | |
| 93 | const void *a, *b; | |
| 94 | { | |
| 95 | return(strcmp(((struct cchar *)a)->name, ((struct cchar *)b)->name)); | |
| 96 | } |