| dd.c (51249) | dd.c (51335) |
|---|---|
| 1/*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Keith Muller of the University of California, San Diego and Lance 7 * Visser of Convex Computer Corporation. 8 * --- 32 unchanged lines hidden (view full) --- 41 The Regents of the University of California. All rights reserved.\n"; 42#endif /* not lint */ 43 44#ifndef lint 45#if 0 46static char sccsid[] = "@(#)dd.c 8.5 (Berkeley) 4/2/94"; 47#endif 48static const char rcsid[] = | 1/*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Keith Muller of the University of California, San Diego and Lance 7 * Visser of Convex Computer Corporation. 8 * --- 32 unchanged lines hidden (view full) --- 41 The Regents of the University of California. All rights reserved.\n"; 42#endif /* not lint */ 43 44#ifndef lint 45#if 0 46static char sccsid[] = "@(#)dd.c 8.5 (Berkeley) 4/2/94"; 47#endif 48static const char rcsid[] = |
| 49 "$FreeBSD: head/bin/dd/dd.c 51249 1999-09-13 21:47:10Z green $"; | 49 "$FreeBSD: head/bin/dd/dd.c 51335 1999-09-16 19:50:59Z green $"; |
| 50#endif /* not lint */ 51 52#include <sys/param.h> 53#include <sys/stat.h> 54#include <sys/conf.h> 55#include <sys/filio.h> 56 57#include <ctype.h> --- 162 unchanged lines hidden (view full) --- 220 } else { 221 if (type & D_TAPE) 222 io->flags |= ISTAPE; 223 else if (type & (D_DISK | D_MEM)) 224 io->flags |= ISSEEK; 225 if (S_ISCHR(sb.st_mode) && (type & D_TAPE) == 0) 226 io->flags |= ISCHR; 227 } | 50#endif /* not lint */ 51 52#include <sys/param.h> 53#include <sys/stat.h> 54#include <sys/conf.h> 55#include <sys/filio.h> 56 57#include <ctype.h> --- 162 unchanged lines hidden (view full) --- 220 } else { 221 if (type & D_TAPE) 222 io->flags |= ISTAPE; 223 else if (type & (D_DISK | D_MEM)) 224 io->flags |= ISSEEK; 225 if (S_ISCHR(sb.st_mode) && (type & D_TAPE) == 0) 226 io->flags |= ISCHR; 227 } |
| 228 } else if (lseek(io->fd, (off_t)0, SEEK_CUR) == 0) 229 io->flags |= ISSEEK; 230 else if (errno == ESPIPE) | 228 return; 229 } 230 errno = 0; 231 if (lseek(io->fd, (off_t)0, SEEK_CUR) == -1 && errno == ESPIPE) |
| 231 io->flags |= ISPIPE; | 232 io->flags |= ISPIPE; |
| 233 else 234 io->flags |= ISSEEK; |
|
| 232} 233 234static void 235dd_in() 236{ 237 ssize_t n; 238 239 for (;;) { | 235} 236 237static void 238dd_in() 239{ 240 ssize_t n; 241 242 for (;;) { |
| 240 if (cpy_cnt && (st.in_full + st.in_part) >= cpy_cnt) | 243 switch (cpy_cnt) { 244 case -1: /* count=0 was specified */ |
| 241 return; | 245 return; |
| 246 case 0: 247 break; 248 default: 249 if (st.in_full + st.in_part >= cpy_cnt) 250 return; 251 break; 252 } |
|
| 242 243 /* 244 * Zero the buffer first if sync; if doing block operations, 245 * use spaces. 246 */ 247 if (ddflags & C_SYNC) { 248 if (ddflags & (C_BLOCK | C_UNBLOCK)) 249 memset(in.dbp, ' ', in.dbsz); --- 199 unchanged lines hidden --- | 253 254 /* 255 * Zero the buffer first if sync; if doing block operations, 256 * use spaces. 257 */ 258 if (ddflags & C_SYNC) { 259 if (ddflags & (C_BLOCK | C_UNBLOCK)) 260 memset(in.dbp, ' ', in.dbsz); --- 199 unchanged lines hidden --- |