ip_send.c revision 1.3.8.2
1 1.3.8.2 tls /* $NetBSD: ip_send.c,v 1.3.8.2 2014/08/19 23:51:52 tls Exp $ */ 2 1.3.8.2 tls /*- 3 1.3.8.2 tls * Copyright (c) 1996 4 1.3.8.2 tls * Keith Bostic. All rights reserved. 5 1.3.8.2 tls * 6 1.3.8.2 tls * See the LICENSE file for redistribution information. 7 1.3.8.2 tls */ 8 1.3.8.2 tls 9 1.3.8.2 tls #include "config.h" 10 1.3.8.2 tls 11 1.3.8.2 tls #include <sys/cdefs.h> 12 1.3.8.2 tls #if 0 13 1.3.8.2 tls #ifndef lint 14 1.3.8.2 tls static const char sccsid[] = "Id: ip_send.c,v 8.10 2001/06/25 15:19:25 skimo Exp (Berkeley) Date: 2001/06/25 15:19:25 "; 15 1.3.8.2 tls #endif /* not lint */ 16 1.3.8.2 tls #else 17 1.3.8.2 tls __RCSID("$NetBSD: ip_send.c,v 1.3.8.2 2014/08/19 23:51:52 tls Exp $"); 18 1.3.8.2 tls #endif 19 1.3.8.2 tls 20 1.3.8.2 tls #include <sys/types.h> 21 1.3.8.2 tls #include <sys/queue.h> 22 1.3.8.2 tls 23 1.3.8.2 tls #include <bitstring.h> 24 1.3.8.2 tls #include <stdio.h> 25 1.3.8.2 tls #include <stdlib.h> 26 1.3.8.2 tls #include <string.h> 27 1.3.8.2 tls #include <unistd.h> 28 1.3.8.2 tls 29 1.3.8.2 tls #include "../common/common.h" 30 1.3.8.2 tls #include "ip.h" 31 1.3.8.2 tls 32 1.3.8.2 tls /* 33 1.3.8.2 tls * vi_send -- 34 1.3.8.2 tls * Construct and send an IP buffer. 35 1.3.8.2 tls * 36 1.3.8.2 tls * PUBLIC: int vi_send __P((int, const char *, IP_BUF *)); 37 1.3.8.2 tls */ 38 1.3.8.2 tls int 39 1.3.8.2 tls vi_send(int ofd, const char *fmt, IP_BUF *ipbp) 40 1.3.8.2 tls { 41 1.3.8.2 tls static char *bp; 42 1.3.8.2 tls static size_t blen; 43 1.3.8.2 tls size_t off; 44 1.3.8.2 tls u_int32_t ilen; 45 1.3.8.2 tls size_t nlen; 46 1.3.8.2 tls int n, nw; 47 1.3.8.2 tls char *p; 48 1.3.8.2 tls 49 1.3.8.2 tls /* 50 1.3.8.2 tls * Have not created the channel to vi yet? -- RAZ 51 1.3.8.2 tls * 52 1.3.8.2 tls * XXX 53 1.3.8.2 tls * How is that possible!?!? 54 1.3.8.2 tls * 55 1.3.8.2 tls * We'll soon find out. 56 1.3.8.2 tls */ 57 1.3.8.2 tls if (ofd == 0) { 58 1.3.8.2 tls fprintf(stderr, "No channel\n"); 59 1.3.8.2 tls abort(); 60 1.3.8.2 tls } 61 1.3.8.2 tls 62 1.3.8.2 tls if (blen == 0 && (bp = malloc(blen = 512)) == NULL) 63 1.3.8.2 tls return (1); 64 1.3.8.2 tls 65 1.3.8.2 tls p = bp; 66 1.3.8.2 tls nlen = 0; 67 1.3.8.2 tls *p++ = ipbp->code; 68 1.3.8.2 tls nlen += IPO_CODE_LEN; 69 1.3.8.2 tls 70 1.3.8.2 tls if (fmt != NULL) 71 1.3.8.2 tls for (; *fmt != '\0'; ++fmt) 72 1.3.8.2 tls switch (*fmt) { 73 1.3.8.2 tls case '1': /* Value #1. */ 74 1.3.8.2 tls ilen = htonl(ipbp->val1); 75 1.3.8.2 tls goto value; 76 1.3.8.2 tls case '2': /* Value #2. */ 77 1.3.8.2 tls ilen = htonl(ipbp->val2); 78 1.3.8.2 tls goto value; 79 1.3.8.2 tls case '3': /* Value #3. */ 80 1.3.8.2 tls ilen = htonl(ipbp->val3); 81 1.3.8.2 tls value: nlen += IPO_INT_LEN; 82 1.3.8.2 tls if (nlen >= blen) { 83 1.3.8.2 tls blen = blen * 2 + nlen; 84 1.3.8.2 tls off = p - bp; 85 1.3.8.2 tls if ((bp = realloc(bp, blen)) == NULL) 86 1.3.8.2 tls return (1); 87 1.3.8.2 tls p = bp + off; 88 1.3.8.2 tls } 89 1.3.8.2 tls memcpy(p, &ilen, IPO_INT_LEN); 90 1.3.8.2 tls p += IPO_INT_LEN; 91 1.3.8.2 tls break; 92 1.3.8.2 tls case 'a': /* String #1. */ 93 1.3.8.2 tls case 'b': /* String #2. */ 94 1.3.8.2 tls ilen = *fmt == 'a' ? ipbp->len1 : ipbp->len2; 95 1.3.8.2 tls nlen += IPO_INT_LEN + ilen; 96 1.3.8.2 tls if (nlen >= blen) { 97 1.3.8.2 tls blen = blen * 2 + nlen; 98 1.3.8.2 tls off = p - bp; 99 1.3.8.2 tls if ((bp = realloc(bp, blen)) == NULL) 100 1.3.8.2 tls return (1); 101 1.3.8.2 tls p = bp + off; 102 1.3.8.2 tls } 103 1.3.8.2 tls ilen = htonl(ilen); 104 1.3.8.2 tls memcpy(p, &ilen, IPO_INT_LEN); 105 1.3.8.2 tls p += IPO_INT_LEN; 106 1.3.8.2 tls if (*fmt == 'a') { 107 1.3.8.2 tls memcpy(p, ipbp->str1, ipbp->len1); 108 1.3.8.2 tls p += ipbp->len1; 109 1.3.8.2 tls } else { 110 1.3.8.2 tls memcpy(p, ipbp->str2, ipbp->len2); 111 1.3.8.2 tls p += ipbp->len2; 112 1.3.8.2 tls } 113 1.3.8.2 tls break; 114 1.3.8.2 tls } 115 1.3.8.2 tls for (n = p - bp, p = bp; n > 0; n -= nw, p += nw) 116 1.3.8.2 tls if ((nw = write(ofd, p, n)) < 0) 117 1.3.8.2 tls return (1); 118 1.3.8.2 tls return (0); 119 1.3.8.2 tls } 120
Indexes created Thu Oct 08 00:26:19 UTC 2026