| read.c (11411) | read.c (17339) |
|---|---|
| 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Sze-Tyan Wang. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 44 unchanged lines hidden (view full) --- 53 * 54 * This is the function that reads to a byte offset from the end of the input, 55 * storing the data in a wrap-around buffer which is then displayed. If the 56 * rflag is set, the data is displayed in lines in reverse order, and this 57 * routine has the usual nastiness of trying to find the newlines. Otherwise, 58 * it is displayed from the character closest to the beginning of the input to 59 * the end. 60 */ | 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Sze-Tyan Wang. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 44 unchanged lines hidden (view full) --- 53 * 54 * This is the function that reads to a byte offset from the end of the input, 55 * storing the data in a wrap-around buffer which is then displayed. If the 56 * rflag is set, the data is displayed in lines in reverse order, and this 57 * routine has the usual nastiness of trying to find the newlines. Otherwise, 58 * it is displayed from the character closest to the beginning of the input to 59 * the end. 60 */ |
| 61void | 61int |
| 62bytes(fp, off) 63 register FILE *fp; 64 off_t off; 65{ 66 register int ch, len, tlen; 67 register char *ep, *p, *t; 68 int wrap; 69 char *sp; --- 5 unchanged lines hidden (view full) --- 75 *p = ch; 76 if (++p == ep) { 77 wrap = 1; 78 p = sp; 79 } 80 } 81 if (ferror(fp)) { 82 ierr(); | 62bytes(fp, off) 63 register FILE *fp; 64 off_t off; 65{ 66 register int ch, len, tlen; 67 register char *ep, *p, *t; 68 int wrap; 69 char *sp; --- 5 unchanged lines hidden (view full) --- 75 *p = ch; 76 if (++p == ep) { 77 wrap = 1; 78 p = sp; 79 } 80 } 81 if (ferror(fp)) { 82 ierr(); |
| 83 return; | 83 return 1; |
| 84 } 85 86 if (rflag) { 87 for (t = p - 1, len = 0; t >= sp; --t, ++len) 88 if (*t == '\n' && len) { 89 WR(t + 1, len); 90 len = 0; 91 } --- 28 unchanged lines hidden (view full) --- 120 * 121 * This is the function that reads to a line offset from the end of the input, 122 * storing the data in an array of buffers which is then displayed. If the 123 * rflag is set, the data is displayed in lines in reverse order, and this 124 * routine has the usual nastiness of trying to find the newlines. Otherwise, 125 * it is displayed from the line closest to the beginning of the input to 126 * the end. 127 */ | 84 } 85 86 if (rflag) { 87 for (t = p - 1, len = 0; t >= sp; --t, ++len) 88 if (*t == '\n' && len) { 89 WR(t + 1, len); 90 len = 0; 91 } --- 28 unchanged lines hidden (view full) --- 120 * 121 * This is the function that reads to a line offset from the end of the input, 122 * storing the data in an array of buffers which is then displayed. If the 123 * rflag is set, the data is displayed in lines in reverse order, and this 124 * routine has the usual nastiness of trying to find the newlines. Otherwise, 125 * it is displayed from the line closest to the beginning of the input to 126 * the end. 127 */ |
| 128void | 128int |
| 129lines(fp, off) 130 register FILE *fp; 131 off_t off; 132{ 133 struct { 134 u_int blen; 135 u_int len; 136 char *l; --- 29 unchanged lines hidden (view full) --- 166 if (++recno == off) { 167 wrap = 1; 168 recno = 0; 169 } 170 } 171 } 172 if (ferror(fp)) { 173 ierr(); | 129lines(fp, off) 130 register FILE *fp; 131 off_t off; 132{ 133 struct { 134 u_int blen; 135 u_int len; 136 char *l; --- 29 unchanged lines hidden (view full) --- 166 if (++recno == off) { 167 wrap = 1; 168 recno = 0; 169 } 170 } 171 } 172 if (ferror(fp)) { 173 ierr(); |
| 174 return; | 174 return 1; |
| 175 } 176 if (cnt) { 177 lines[recno].l = sp; 178 lines[recno].len = cnt; 179 if (++recno == off) { 180 wrap = 1; 181 recno = 0; 182 } --- 16 unchanged lines hidden --- | 175 } 176 if (cnt) { 177 lines[recno].l = sp; 178 lines[recno].len = cnt; 179 if (++recno == off) { 180 wrap = 1; 181 recno = 0; 182 } --- 16 unchanged lines hidden --- |