| cpio.c (90110) | cpio.c (90113) |
|---|---|
| 1/*- 2 * Copyright (c) 1992 Keith Muller. 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Keith Muller of the University of California, San Diego. 8 * --- 26 unchanged lines hidden (view full) --- 35 * SUCH DAMAGE. 36 */ 37 38#ifndef lint 39#if 0 40static char sccsid[] = "@(#)cpio.c 8.1 (Berkeley) 5/31/93"; 41#endif 42static const char rcsid[] = | 1/*- 2 * Copyright (c) 1992 Keith Muller. 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Keith Muller of the University of California, San Diego. 8 * --- 26 unchanged lines hidden (view full) --- 35 * SUCH DAMAGE. 36 */ 37 38#ifndef lint 39#if 0 40static char sccsid[] = "@(#)cpio.c 8.1 (Berkeley) 5/31/93"; 41#endif 42static const char rcsid[] = |
| 43 "$FreeBSD: head/bin/pax/cpio.c 90110 2002-02-02 06:48:10Z imp $"; | 43 "$FreeBSD: head/bin/pax/cpio.c 90113 2002-02-02 07:07:59Z imp $"; |
| 44#endif /* not lint */ 45 46#include <sys/types.h> 47#include <sys/time.h> 48#include <sys/stat.h> 49#include <string.h> 50#include <stdio.h> 51#include <unistd.h> 52#include <stdlib.h> 53#include "pax.h" 54#include "cpio.h" 55#include "extern.h" 56 | 44#endif /* not lint */ 45 46#include <sys/types.h> 47#include <sys/time.h> 48#include <sys/stat.h> 49#include <string.h> 50#include <stdio.h> 51#include <unistd.h> 52#include <stdlib.h> 53#include "pax.h" 54#include "cpio.h" 55#include "extern.h" 56 |
| 57static int rd_nm(register ARCHD *, int); 58static int rd_ln_nm(register ARCHD *); 59static int com_rd(register ARCHD *); | 57static int rd_nm(ARCHD *, int); 58static int rd_ln_nm(ARCHD *); 59static int com_rd(ARCHD *); |
| 60 61/* 62 * Routines which support the different cpio versions 63 */ 64 65static int swp_head; /* binary cpio header byte swap */ 66 67/* --- 19 unchanged lines hidden (view full) --- 87 * passed the block, the in_sync flag (which tells us we are in resync 88 * mode; looking for a valid header), and cnt (which starts at zero) 89 * which is used to count the number of empty blocks we have seen so far. 90 * Return: 91 * 0 if a valid trailer, -1 if not a valid trailer, 92 */ 93 94int | 60 61/* 62 * Routines which support the different cpio versions 63 */ 64 65static int swp_head; /* binary cpio header byte swap */ 66 67/* --- 19 unchanged lines hidden (view full) --- 87 * passed the block, the in_sync flag (which tells us we are in resync 88 * mode; looking for a valid header), and cnt (which starts at zero) 89 * which is used to count the number of empty blocks we have seen so far. 90 * Return: 91 * 0 if a valid trailer, -1 if not a valid trailer, 92 */ 93 94int |
| 95cpio_trail(register ARCHD *arcn) | 95cpio_trail(ARCHD *arcn) |
| 96{ 97 /* 98 * look for trailer id in file we are about to process 99 */ 100 if ((strcmp(arcn->name, TRAILER) == 0) && (arcn->sb.st_size == 0)) 101 return(0); 102 return(-1); 103} 104 105/* 106 * com_rd() 107 * operations common to all cpio read functions. 108 * Return: 109 * 0 110 */ 111 112static int | 96{ 97 /* 98 * look for trailer id in file we are about to process 99 */ 100 if ((strcmp(arcn->name, TRAILER) == 0) && (arcn->sb.st_size == 0)) 101 return(0); 102 return(-1); 103} 104 105/* 106 * com_rd() 107 * operations common to all cpio read functions. 108 * Return: 109 * 0 110 */ 111 112static int |
| 113com_rd(register ARCHD *arcn) | 113com_rd(ARCHD *arcn) |
| 114{ 115 arcn->skip = 0; 116 arcn->pat = NULL; 117 arcn->org_name = arcn->name; 118 switch(arcn->sb.st_mode & C_IFMT) { 119 case C_ISFIFO: 120 arcn->type = PAX_FIF; 121 break; --- 55 unchanged lines hidden (view full) --- 177/* 178 * rd_nam() 179 * read in the file name which follows the cpio header 180 * Return: 181 * 0 if ok, -1 otherwise 182 */ 183 184static int | 114{ 115 arcn->skip = 0; 116 arcn->pat = NULL; 117 arcn->org_name = arcn->name; 118 switch(arcn->sb.st_mode & C_IFMT) { 119 case C_ISFIFO: 120 arcn->type = PAX_FIF; 121 break; --- 55 unchanged lines hidden (view full) --- 177/* 178 * rd_nam() 179 * read in the file name which follows the cpio header 180 * Return: 181 * 0 if ok, -1 otherwise 182 */ 183 184static int |
| 185rd_nm(register ARCHD *arcn, int nsz) | 185rd_nm(ARCHD *arcn, int nsz) |
| 186{ 187 /* 188 * do not even try bogus values 189 */ 190 if ((nsz == 0) || (nsz > sizeof(arcn->name))) { 191 paxwarn(1, "Cpio file name length %d is out of range", nsz); 192 return(-1); 193 } --- 13 unchanged lines hidden (view full) --- 207 * rd_ln_nm() 208 * read in the link name for a file with links. The link name is stored 209 * like file data (and is NOT \0 terminated!) 210 * Return: 211 * 0 if ok, -1 otherwise 212 */ 213 214static int | 186{ 187 /* 188 * do not even try bogus values 189 */ 190 if ((nsz == 0) || (nsz > sizeof(arcn->name))) { 191 paxwarn(1, "Cpio file name length %d is out of range", nsz); 192 return(-1); 193 } --- 13 unchanged lines hidden (view full) --- 207 * rd_ln_nm() 208 * read in the link name for a file with links. The link name is stored 209 * like file data (and is NOT \0 terminated!) 210 * Return: 211 * 0 if ok, -1 otherwise 212 */ 213 214static int |
| 215rd_ln_nm(register ARCHD *arcn) | 215rd_ln_nm(ARCHD *arcn) |
| 216{ 217 /* 218 * check the length specified for bogus values 219 */ 220 if ((arcn->sb.st_size == 0) || 221 (arcn->sb.st_size >= sizeof(arcn->ln_name))) { 222# ifdef NET2_STAT 223 paxwarn(1, "Cpio link name length is invalid: %lu", --- 51 unchanged lines hidden (view full) --- 275 * cpio_rd() 276 * determine if a buffer is a byte oriented extended cpio archive entry. 277 * convert and store the values in the ARCHD parameter. 278 * Return: 279 * 0 if a valid header, -1 otherwise. 280 */ 281 282int | 216{ 217 /* 218 * check the length specified for bogus values 219 */ 220 if ((arcn->sb.st_size == 0) || 221 (arcn->sb.st_size >= sizeof(arcn->ln_name))) { 222# ifdef NET2_STAT 223 paxwarn(1, "Cpio link name length is invalid: %lu", --- 51 unchanged lines hidden (view full) --- 275 * cpio_rd() 276 * determine if a buffer is a byte oriented extended cpio archive entry. 277 * convert and store the values in the ARCHD parameter. 278 * Return: 279 * 0 if a valid header, -1 otherwise. 280 */ 281 282int |
| 283cpio_rd(register ARCHD *arcn, register char *buf) | 283cpio_rd(ARCHD *arcn, char *buf) |
| 284{ | 284{ |
| 285 register int nsz; 286 register HD_CPIO *hd; | 285 int nsz; 286 HD_CPIO *hd; |
| 287 288 /* 289 * check that this is a valid header, if not return -1 290 */ 291 if (cpio_id(buf, sizeof(HD_CPIO)) < 0) 292 return(-1); 293 hd = (HD_CPIO *)buf; 294 --- 89 unchanged lines hidden (view full) --- 384 * copy the data in the ARCHD to buffer in extended byte oriented cpio 385 * format. 386 * Return 387 * 0 if file has data to be written after the header, 1 if file has NO 388 * data to write after the header, -1 if archive write failed 389 */ 390 391int | 287 288 /* 289 * check that this is a valid header, if not return -1 290 */ 291 if (cpio_id(buf, sizeof(HD_CPIO)) < 0) 292 return(-1); 293 hd = (HD_CPIO *)buf; 294 --- 89 unchanged lines hidden (view full) --- 384 * copy the data in the ARCHD to buffer in extended byte oriented cpio 385 * format. 386 * Return 387 * 0 if file has data to be written after the header, 1 if file has NO 388 * data to write after the header, -1 if archive write failed 389 */ 390 391int |
| 392cpio_wr(register ARCHD *arcn) | 392cpio_wr(ARCHD *arcn) |
| 393{ | 393{ |
| 394 register HD_CPIO *hd; 395 register int nsz; | 394 HD_CPIO *hd; 395 int nsz; |
| 396 char hdblk[sizeof(HD_CPIO)]; 397 398 /* 399 * check and repair truncated device and inode fields in the header 400 */ 401 if (map_dev(arcn, (u_long)CPIO_MASK, (u_long)CPIO_MASK) < 0) 402 return(-1); 403 --- 158 unchanged lines hidden (view full) --- 562 * vcpio_rd() 563 * determine if a buffer is a system VR4 archive entry. (with/without CRC) 564 * convert and store the values in the ARCHD parameter. 565 * Return: 566 * 0 if a valid header, -1 otherwise. 567 */ 568 569int | 396 char hdblk[sizeof(HD_CPIO)]; 397 398 /* 399 * check and repair truncated device and inode fields in the header 400 */ 401 if (map_dev(arcn, (u_long)CPIO_MASK, (u_long)CPIO_MASK) < 0) 402 return(-1); 403 --- 158 unchanged lines hidden (view full) --- 562 * vcpio_rd() 563 * determine if a buffer is a system VR4 archive entry. (with/without CRC) 564 * convert and store the values in the ARCHD parameter. 565 * Return: 566 * 0 if a valid header, -1 otherwise. 567 */ 568 569int |
| 570vcpio_rd(register ARCHD *arcn, register char *buf) | 570vcpio_rd(ARCHD *arcn, char *buf) |
| 571{ | 571{ |
| 572 register HD_VCPIO *hd; | 572 HD_VCPIO *hd; |
| 573 dev_t devminor; 574 dev_t devmajor; | 573 dev_t devminor; 574 dev_t devmajor; |
| 575 register int nsz; | 575 int nsz; |
| 576 577 /* 578 * during the id phase it was determined if we were using CRC, use the 579 * proper id routine. 580 */ 581 if (docrc) { 582 if (crc_id(buf, sizeof(HD_VCPIO)) < 0) 583 return(-1); --- 111 unchanged lines hidden (view full) --- 695 * copy the data in the ARCHD to buffer in system VR4 cpio 696 * (with/without crc) format. 697 * Return 698 * 0 if file has data to be written after the header, 1 if file has 699 * NO data to write after the header, -1 if archive write failed 700 */ 701 702int | 576 577 /* 578 * during the id phase it was determined if we were using CRC, use the 579 * proper id routine. 580 */ 581 if (docrc) { 582 if (crc_id(buf, sizeof(HD_VCPIO)) < 0) 583 return(-1); --- 111 unchanged lines hidden (view full) --- 695 * copy the data in the ARCHD to buffer in system VR4 cpio 696 * (with/without crc) format. 697 * Return 698 * 0 if file has data to be written after the header, 1 if file has 699 * NO data to write after the header, -1 if archive write failed 700 */ 701 702int |
| 703vcpio_wr(register ARCHD *arcn) | 703vcpio_wr(ARCHD *arcn) |
| 704{ | 704{ |
| 705 register HD_VCPIO *hd; | 705 HD_VCPIO *hd; |
| 706 unsigned int nsz; 707 char hdblk[sizeof(HD_VCPIO)]; 708 709 /* 710 * check and repair truncated device and inode fields in the cpio 711 * header 712 */ 713 if (map_dev(arcn, (u_long)VCPIO_MASK, (u_long)VCPIO_MASK) < 0) --- 166 unchanged lines hidden (view full) --- 880 * determine if a buffer is a old binary archive entry. (it may have byte 881 * swapped header) convert and store the values in the ARCHD parameter. 882 * This is a very old header format and should not really be used. 883 * Return: 884 * 0 if a valid header, -1 otherwise. 885 */ 886 887int | 706 unsigned int nsz; 707 char hdblk[sizeof(HD_VCPIO)]; 708 709 /* 710 * check and repair truncated device and inode fields in the cpio 711 * header 712 */ 713 if (map_dev(arcn, (u_long)VCPIO_MASK, (u_long)VCPIO_MASK) < 0) --- 166 unchanged lines hidden (view full) --- 880 * determine if a buffer is a old binary archive entry. (it may have byte 881 * swapped header) convert and store the values in the ARCHD parameter. 882 * This is a very old header format and should not really be used. 883 * Return: 884 * 0 if a valid header, -1 otherwise. 885 */ 886 887int |
| 888bcpio_rd(register ARCHD *arcn, register char *buf) | 888bcpio_rd(ARCHD *arcn, char *buf) |
| 889{ | 889{ |
| 890 register HD_BCPIO *hd; 891 register int nsz; | 890 HD_BCPIO *hd; 891 int nsz; |
| 892 893 /* 894 * check the header 895 */ 896 if (bcpio_id(buf, sizeof(HD_BCPIO)) < 0) 897 return(-1); 898 899 arcn->pad = 0L; --- 95 unchanged lines hidden (view full) --- 995 * always check the conversion is ok. nobody in his their right mind 996 * should write an achive in this format... 997 * Return 998 * 0 if file has data to be written after the header, 1 if file has NO 999 * data to write after the header, -1 if archive write failed 1000 */ 1001 1002int | 892 893 /* 894 * check the header 895 */ 896 if (bcpio_id(buf, sizeof(HD_BCPIO)) < 0) 897 return(-1); 898 899 arcn->pad = 0L; --- 95 unchanged lines hidden (view full) --- 995 * always check the conversion is ok. nobody in his their right mind 996 * should write an achive in this format... 997 * Return 998 * 0 if file has data to be written after the header, 1 if file has NO 999 * data to write after the header, -1 if archive write failed 1000 */ 1001 1002int |
| 1003bcpio_wr(register ARCHD *arcn) | 1003bcpio_wr(ARCHD *arcn) |
| 1004{ | 1004{ |
| 1005 register HD_BCPIO *hd; 1006 register int nsz; | 1005 HD_BCPIO *hd; 1006 int nsz; |
| 1007 char hdblk[sizeof(HD_BCPIO)]; 1008 off_t t_offt; 1009 int t_int; 1010 time_t t_timet; 1011 1012 /* 1013 * check and repair truncated device and inode fields in the cpio 1014 * header --- 143 unchanged lines hidden --- | 1007 char hdblk[sizeof(HD_BCPIO)]; 1008 off_t t_offt; 1009 int t_int; 1010 time_t t_timet; 1011 1012 /* 1013 * check and repair truncated device and inode fields in the cpio 1014 * header --- 143 unchanged lines hidden --- |