patch your kernel with the devps patch in the kernel-patches/
directory.
* Wrote basename, killall, and uptime.
+ * tar has been completely rewritten by me. Both tar creation and
+ extraction are now well behaved. Costs 7.6k with all optional
+ tar features enabled, and 5k for just tar extraction support.
* Added freeramdisk, which will free up all memory associated
with a ram disk. Contributed by Emanuele Caratti <wiz@iol.it>
and then adjusted a bit by me.
* Added tr and dirname from John Lombardo <john@deltanet.com>
* Added echo and test (from me).
* Added usleep contributed by Nicolas Pitre <nico@cam.org>
- * tar wouldn't create directory entries that don't end in '/',
- now it does (thanks to Avery Pennarun <apenwarr@worldvisions.ca>)
- * tar has been completely rewritten, and tar creation and extraction
- is now much better behaved.
* Several fixes from Pavel Roskin <pavel_roskin@geocities.com>:
- When `tail' fails to open a file it now exits.
- When `syslogd' is given the `-n' option it should still use
# Set the following to `true' to make a debuggable build.
# Leave this set to `false' for production use.
# eg: `make DODEBUG=true tests'
-DODEBUG = true
+DODEBUG = false
# If you want a static binary, turn this on. I can't think
# of many situations where anybody would ever want it static,
# -D_GNU_SOURCE is needed because environ is used in init.c
ifeq ($(DODEBUG),true)
CFLAGS += -Wall -g -D_GNU_SOURCE
- LDFLAGS =
+ LDFLAGS =
STRIP =
else
CFLAGS += -Wall $(OPTIMIZATION) -fomit-frame-pointer -fno-builtin -D_GNU_SOURCE
* hwclock
* stty
* cut
-* expr (maybe?) (ash builtin?)
+* expr
-----------------------
-There is no exclude file(s) option to tar. LRP's packaging system can not
-function without this. Will you have the time to add this soon?
-
-
------------------------
-
Feature request:
/bin/busybox --install -s which makes all links to commands that it
#include <sys/param.h> /* for PATH_MAX */
-#ifdef BB_FEATURE_TAR_CREATE
-
static const char tar_usage[] =
- "tar -[cxtvOf] [tarFile] [-X excludeFile] [FILE] ...\n\n"
- "Create, extract, or list files from a tar file. Note that\n"
- "this version of tar packs hard links as separate files.\n\n"
- "Options:\n"
-
- "\tc=create, x=extract, t=list contents, v=verbose,\n"
- "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"
- "\tX=exclude file\n";
-
+#ifdef BB_FEATURE_TAR_CREATE
+ "tar -[cxtvO] "
#else
-
-static const char tar_usage[] =
- "tar -[xtvO] [-f tarFile] [-X excludeFile] [FILE] ...\n\n"
- "Extract, or list files stored in a tar file. This\n"
- "version of tar does not support creation of tar files.\n\n"
- "Options:\n"
-
- "\tx=extract, t=list contents, v=verbose,\n"
- "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"
- "\tX=exclude file\n";
-
-
+ "tar -[xtvO] "
#endif
-
+#if defined BB_FEATURE_TAR_EXCLUDE
+ "[--exclude File] "
+#endif
+ "[-f tarFile] [FILE] ...\n\n"
+ "Create, extract, or list files from a tar file. Note that\n"
+ "this version of tar treats hard links as separate files.\n\n"
+ "Main operation mode:\n"
+#ifdef BB_FEATURE_TAR_CREATE
+ "\tc\t\tcreate\n"
+#endif
+ "\tx\t\textract\n"
+ "\tt\t\tlist\n"
+ "File selection:\n"
+ "\tf\t\tname of tarfile or \"-\" for stdin\n"
+ "\tO\t\textract to stdout\n"
+#if defined BB_FEATURE_TAR_EXCLUDE
+ "\t--exclude\tfile to exclude\n"
+#endif
+ "Informative output:\n"
+ "\tv\t\tverbosely list files processed\n"
+ ;
/* Tar file constants */
#ifndef MAJOR
struct TarHeader
{
/* byte offset */
- char name[100]; /* 0 */
- char mode[8]; /* 100 */
- char uid[8]; /* 108 */
- char gid[8]; /* 116 */
- char size[12]; /* 124 */
- char mtime[12]; /* 136 */
- char chksum[8]; /* 148 */
- char typeflag; /* 156 */
- char linkname[100]; /* 157 */
- char magic[6]; /* 257 */
- char version[2]; /* 263 */
- char uname[32]; /* 265 */
- char gname[32]; /* 297 */
- char devmajor[8]; /* 329 */
- char devminor[8]; /* 337 */
- char prefix[155]; /* 345 */
- /* padding 500 */
+ char name[100]; /* 0-99 */
+ char mode[8]; /* 100-107 */
+ char uid[8]; /* 108-115 */
+ char gid[8]; /* 116-123 */
+ char size[12]; /* 124-135 */
+ char mtime[12]; /* 136-147 */
+ char chksum[8]; /* 148-155 */
+ char typeflag; /* 156-156 */
+ char linkname[100]; /* 157-256 */
+ char magic[6]; /* 257-262 */
+ char version[2]; /* 263-264 */
+ char uname[32]; /* 265-296 */
+ char gname[32]; /* 297-328 */
+ char devmajor[8]; /* 329-336 */
+ char devminor[8]; /* 337-344 */
+ char prefix[155]; /* 345-499 */
+ char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */
};
typedef struct TarHeader TarHeader;
/* A few useful constants */
#define TAR_MAGIC "ustar" /* ustar and a null */
-//#define TAR_VERSION "00" /* 00 and no null */
-#define TAR_VERSION " " /* Be compatable with old GNU format */
+#define TAR_VERSION " " /* Be compatable with GNU tar format */
#define TAR_MAGIC_LEN 6
#define TAR_VERSION_LEN 2
#define TAR_BLOCK_SIZE 512
extern int tar_main(int argc, char **argv)
{
char** excludeList=NULL;
+#if defined BB_FEATURE_TAR_EXCLUDE
int excludeListSize=0;
+#endif
const char *tarName=NULL;
int listFlag = FALSE;
int extractFlag = FALSE;
tostdoutFlag = TRUE;
tarName = "-";
break;
- case 'X':
- if (--argc == 0) {
- fatalError( "Option requires an argument: No file specified\n");
- }
- excludeList=realloc( excludeList, sizeof(char**) * (excludeListSize+1));
- excludeList[excludeListSize] = *(++argv);
- /* Remove leading "/"s */
- if (*excludeList[excludeListSize] =='/') {
- excludeList[excludeListSize] = (excludeList[excludeListSize])+1;
- }
- if (excludeList[excludeListSize++] == NULL)
- fatalError( "Option requires an argument: No file specified\n");
- stopIt=TRUE;
- break;
-
case '-':
+#if defined BB_FEATURE_TAR_EXCLUDE
+ if (strcmp(*argv, "-exclude")==0) {
+ if (--argc == 0) {
+ fatalError( "Option requires an argument: No file specified\n");
+ }
+ excludeList=realloc( excludeList, sizeof(char**) * (excludeListSize+2));
+ excludeList[excludeListSize] = *(++argv);
+ /* Remove leading "/"s */
+ if (*excludeList[excludeListSize] =='/') {
+ excludeList[excludeListSize] = (excludeList[excludeListSize])+1;
+ }
+ if (excludeList[excludeListSize++] == NULL)
+ fatalError( "Option requires an argument: No file specified\n");
+ /* Tack a NULL onto the end of the list */
+ excludeList[excludeListSize] = NULL;
+ stopIt=TRUE;
+ break;
+ }
+#endif
usage(tar_usage);
break;
}
}
}
-#if 0
- for (i=0; i<excludeListSize; i++) {
- printf( "%s\n", excludeList[i]);
- fflush(stdout);
- }
-#endif
-
/*
* Do the correct type of action supplying the rest of the
errorMsg(io_error, header->name, strerror(errno));
return( FALSE);
}
+ } else {
+ actualWriteSz=writeSize;
}
size -= actualWriteSz;
static int readTarFile(const char* tarName, int extractFlag, int listFlag,
int tostdoutFlag, int verboseFlag, char** excludeList)
{
- int status, tarFd=0;
+ int status, tarFd=-1;
int errorFlag=FALSE;
TarHeader rawHeader;
TarInfo header;
- //int skipFileFlag=FALSE;
+#if defined BB_FEATURE_TAR_EXCLUDE
+ char** tmpList;
+#endif
/* Open the tar file for reading. */
if (!strcmp(tarName, "-"))
/* First, try to read the header */
if ( readTarHeader(&rawHeader, &header) == FALSE ) {
- close( tarFd);
if ( *(header.name) == '\0' ) {
goto endgame;
} else {
}
if ( *(header.name) == '\0' )
goto endgame;
-
+ header.tarFd = tarFd;
+
+#if defined BB_FEATURE_TAR_EXCLUDE
+ {
+ int skipFlag=FALSE;
+ /* Check for excluded files.... */
+ for (tmpList=excludeList; tmpList && *tmpList; tmpList++) {
+ /* Do some extra hoop jumping for when directory names
+ * end in '/' but the entry in tmpList doesn't */
+ if (strncmp( *tmpList, header.name, strlen(*tmpList))==0 || (
+ header.name[strlen(header.name)-1]=='/'
+ && strncmp( *tmpList, header.name,
+ MIN(strlen(header.name)-1, strlen(*tmpList)))==0)) {
+ /* If it is a regular file, pretend to extract it with
+ * the extractFlag set to FALSE, so the junk in the tarball
+ * is properly skipped over */
+ if ( header.type==REGTYPE || header.type==REGTYPE0 ) {
+ tarExtractRegularFile(&header, FALSE, FALSE);
+ }
+ skipFlag=TRUE;
+ break;
+ }
+ }
+ /* There are not the droids you're looking for, move along */
+ if (skipFlag==TRUE)
+ continue;
+ }
+#endif
/* Special treatment if the list (-t) flag is on */
if (verboseFlag == TRUE && extractFlag == FALSE) {
int len, len1;
printf("\n");
}
-#if 0
- /* See if we want to restore this file or not */
- skipFileFlag=FALSE;
- if (wantFileName(outName) == FALSE) {
- skipFileFlag = TRUE;
- }
-#endif
/* Remove any clutter lying in our way */
unlink( header.name);
{
long chksum=0;
struct TarHeader header;
+#if defined BB_FEATURE_TAR_EXCLUDE
char** tmpList;
+#endif
const unsigned char *cp = (const unsigned char *) &header;
ssize_t size = sizeof(struct TarHeader);
strncpy(header.name, fileName, sizeof(header.name));
}
- /* Now that leading '/''s have been removed,
- * check for excluded files.... */
+#if defined BB_FEATURE_TAR_EXCLUDE
+ /* Check for excluded files.... */
for (tmpList=tbInfo->excludeList; tmpList && *tmpList; tmpList++) {
- printf( "comparing '%s' and '%s'", *tmpList, header.name);
- if (strcmp( *tmpList, header.name)==0)
- printf( ": match\n");
- else
- printf( "\n");
+ /* Do some extra hoop jumping for when directory names
+ * end in '/' but the entry in tmpList doesn't */
+ if (strncmp( *tmpList, header.name, strlen(*tmpList))==0 || (
+ header.name[strlen(header.name)-1]=='/'
+ && strncmp( *tmpList, header.name,
+ MIN(strlen(header.name)-1, strlen(*tmpList)))==0)) {
+ /* Set the mode to something that is not a regular file, thereby
+ * faking out writeTarFile into thinking that nothing further need
+ * be done for this file. Yes, I know this is ugly, but it works. */
+ statbuf->st_mode = 0;
+ return( TRUE);
+ }
}
+#endif
putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
for (size=0; size<(2*TAR_BLOCK_SIZE); size++) {
write(tbInfo.tarFd, "\0", 1);
}
+
+ /* To be pedantically correct, we would check if the tarball
+ * is smaller then 20 tar blocks, and pad it if it was smaller,
+ * but that isn't necessary for GNU tar interoperability, and
+ * so is considered a waste of space */
+
/* Hang up the tools, close up shop, head home */
close(tarFd);
if (errorFlag == TRUE) {
// Enable support for creation of tar files.
#define BB_FEATURE_TAR_CREATE
//
+// Enable support for "--exclude" for excluding files
+//#define BB_FEATURE_TAR_EXCLUDE
+//
//// Enable reverse sort
//#define BB_FEATURE_SORT_REVERSE
//
#include <sys/param.h> /* for PATH_MAX */
-#ifdef BB_FEATURE_TAR_CREATE
-
static const char tar_usage[] =
- "tar -[cxtvOf] [tarFile] [-X excludeFile] [FILE] ...\n\n"
- "Create, extract, or list files from a tar file. Note that\n"
- "this version of tar packs hard links as separate files.\n\n"
- "Options:\n"
-
- "\tc=create, x=extract, t=list contents, v=verbose,\n"
- "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"
- "\tX=exclude file\n";
-
+#ifdef BB_FEATURE_TAR_CREATE
+ "tar -[cxtvO] "
#else
-
-static const char tar_usage[] =
- "tar -[xtvO] [-f tarFile] [-X excludeFile] [FILE] ...\n\n"
- "Extract, or list files stored in a tar file. This\n"
- "version of tar does not support creation of tar files.\n\n"
- "Options:\n"
-
- "\tx=extract, t=list contents, v=verbose,\n"
- "\tO=extract to stdout, f=tarfile or \"-\" for stdin\n"
- "\tX=exclude file\n";
-
-
+ "tar -[xtvO] "
#endif
-
+#if defined BB_FEATURE_TAR_EXCLUDE
+ "[--exclude File] "
+#endif
+ "[-f tarFile] [FILE] ...\n\n"
+ "Create, extract, or list files from a tar file. Note that\n"
+ "this version of tar treats hard links as separate files.\n\n"
+ "Main operation mode:\n"
+#ifdef BB_FEATURE_TAR_CREATE
+ "\tc\t\tcreate\n"
+#endif
+ "\tx\t\textract\n"
+ "\tt\t\tlist\n"
+ "File selection:\n"
+ "\tf\t\tname of tarfile or \"-\" for stdin\n"
+ "\tO\t\textract to stdout\n"
+#if defined BB_FEATURE_TAR_EXCLUDE
+ "\t--exclude\tfile to exclude\n"
+#endif
+ "Informative output:\n"
+ "\tv\t\tverbosely list files processed\n"
+ ;
/* Tar file constants */
#ifndef MAJOR
struct TarHeader
{
/* byte offset */
- char name[100]; /* 0 */
- char mode[8]; /* 100 */
- char uid[8]; /* 108 */
- char gid[8]; /* 116 */
- char size[12]; /* 124 */
- char mtime[12]; /* 136 */
- char chksum[8]; /* 148 */
- char typeflag; /* 156 */
- char linkname[100]; /* 157 */
- char magic[6]; /* 257 */
- char version[2]; /* 263 */
- char uname[32]; /* 265 */
- char gname[32]; /* 297 */
- char devmajor[8]; /* 329 */
- char devminor[8]; /* 337 */
- char prefix[155]; /* 345 */
- /* padding 500 */
+ char name[100]; /* 0-99 */
+ char mode[8]; /* 100-107 */
+ char uid[8]; /* 108-115 */
+ char gid[8]; /* 116-123 */
+ char size[12]; /* 124-135 */
+ char mtime[12]; /* 136-147 */
+ char chksum[8]; /* 148-155 */
+ char typeflag; /* 156-156 */
+ char linkname[100]; /* 157-256 */
+ char magic[6]; /* 257-262 */
+ char version[2]; /* 263-264 */
+ char uname[32]; /* 265-296 */
+ char gname[32]; /* 297-328 */
+ char devmajor[8]; /* 329-336 */
+ char devminor[8]; /* 337-344 */
+ char prefix[155]; /* 345-499 */
+ char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */
};
typedef struct TarHeader TarHeader;
/* A few useful constants */
#define TAR_MAGIC "ustar" /* ustar and a null */
-//#define TAR_VERSION "00" /* 00 and no null */
-#define TAR_VERSION " " /* Be compatable with old GNU format */
+#define TAR_VERSION " " /* Be compatable with GNU tar format */
#define TAR_MAGIC_LEN 6
#define TAR_VERSION_LEN 2
#define TAR_BLOCK_SIZE 512
extern int tar_main(int argc, char **argv)
{
char** excludeList=NULL;
+#if defined BB_FEATURE_TAR_EXCLUDE
int excludeListSize=0;
+#endif
const char *tarName=NULL;
int listFlag = FALSE;
int extractFlag = FALSE;
tostdoutFlag = TRUE;
tarName = "-";
break;
- case 'X':
- if (--argc == 0) {
- fatalError( "Option requires an argument: No file specified\n");
- }
- excludeList=realloc( excludeList, sizeof(char**) * (excludeListSize+1));
- excludeList[excludeListSize] = *(++argv);
- /* Remove leading "/"s */
- if (*excludeList[excludeListSize] =='/') {
- excludeList[excludeListSize] = (excludeList[excludeListSize])+1;
- }
- if (excludeList[excludeListSize++] == NULL)
- fatalError( "Option requires an argument: No file specified\n");
- stopIt=TRUE;
- break;
-
case '-':
+#if defined BB_FEATURE_TAR_EXCLUDE
+ if (strcmp(*argv, "-exclude")==0) {
+ if (--argc == 0) {
+ fatalError( "Option requires an argument: No file specified\n");
+ }
+ excludeList=realloc( excludeList, sizeof(char**) * (excludeListSize+2));
+ excludeList[excludeListSize] = *(++argv);
+ /* Remove leading "/"s */
+ if (*excludeList[excludeListSize] =='/') {
+ excludeList[excludeListSize] = (excludeList[excludeListSize])+1;
+ }
+ if (excludeList[excludeListSize++] == NULL)
+ fatalError( "Option requires an argument: No file specified\n");
+ /* Tack a NULL onto the end of the list */
+ excludeList[excludeListSize] = NULL;
+ stopIt=TRUE;
+ break;
+ }
+#endif
usage(tar_usage);
break;
}
}
}
-#if 0
- for (i=0; i<excludeListSize; i++) {
- printf( "%s\n", excludeList[i]);
- fflush(stdout);
- }
-#endif
-
/*
* Do the correct type of action supplying the rest of the
errorMsg(io_error, header->name, strerror(errno));
return( FALSE);
}
+ } else {
+ actualWriteSz=writeSize;
}
size -= actualWriteSz;
static int readTarFile(const char* tarName, int extractFlag, int listFlag,
int tostdoutFlag, int verboseFlag, char** excludeList)
{
- int status, tarFd=0;
+ int status, tarFd=-1;
int errorFlag=FALSE;
TarHeader rawHeader;
TarInfo header;
- //int skipFileFlag=FALSE;
+#if defined BB_FEATURE_TAR_EXCLUDE
+ char** tmpList;
+#endif
/* Open the tar file for reading. */
if (!strcmp(tarName, "-"))
/* First, try to read the header */
if ( readTarHeader(&rawHeader, &header) == FALSE ) {
- close( tarFd);
if ( *(header.name) == '\0' ) {
goto endgame;
} else {
}
if ( *(header.name) == '\0' )
goto endgame;
-
+ header.tarFd = tarFd;
+
+#if defined BB_FEATURE_TAR_EXCLUDE
+ {
+ int skipFlag=FALSE;
+ /* Check for excluded files.... */
+ for (tmpList=excludeList; tmpList && *tmpList; tmpList++) {
+ /* Do some extra hoop jumping for when directory names
+ * end in '/' but the entry in tmpList doesn't */
+ if (strncmp( *tmpList, header.name, strlen(*tmpList))==0 || (
+ header.name[strlen(header.name)-1]=='/'
+ && strncmp( *tmpList, header.name,
+ MIN(strlen(header.name)-1, strlen(*tmpList)))==0)) {
+ /* If it is a regular file, pretend to extract it with
+ * the extractFlag set to FALSE, so the junk in the tarball
+ * is properly skipped over */
+ if ( header.type==REGTYPE || header.type==REGTYPE0 ) {
+ tarExtractRegularFile(&header, FALSE, FALSE);
+ }
+ skipFlag=TRUE;
+ break;
+ }
+ }
+ /* There are not the droids you're looking for, move along */
+ if (skipFlag==TRUE)
+ continue;
+ }
+#endif
/* Special treatment if the list (-t) flag is on */
if (verboseFlag == TRUE && extractFlag == FALSE) {
int len, len1;
printf("\n");
}
-#if 0
- /* See if we want to restore this file or not */
- skipFileFlag=FALSE;
- if (wantFileName(outName) == FALSE) {
- skipFileFlag = TRUE;
- }
-#endif
/* Remove any clutter lying in our way */
unlink( header.name);
{
long chksum=0;
struct TarHeader header;
+#if defined BB_FEATURE_TAR_EXCLUDE
char** tmpList;
+#endif
const unsigned char *cp = (const unsigned char *) &header;
ssize_t size = sizeof(struct TarHeader);
strncpy(header.name, fileName, sizeof(header.name));
}
- /* Now that leading '/''s have been removed,
- * check for excluded files.... */
+#if defined BB_FEATURE_TAR_EXCLUDE
+ /* Check for excluded files.... */
for (tmpList=tbInfo->excludeList; tmpList && *tmpList; tmpList++) {
- printf( "comparing '%s' and '%s'", *tmpList, header.name);
- if (strcmp( *tmpList, header.name)==0)
- printf( ": match\n");
- else
- printf( "\n");
+ /* Do some extra hoop jumping for when directory names
+ * end in '/' but the entry in tmpList doesn't */
+ if (strncmp( *tmpList, header.name, strlen(*tmpList))==0 || (
+ header.name[strlen(header.name)-1]=='/'
+ && strncmp( *tmpList, header.name,
+ MIN(strlen(header.name)-1, strlen(*tmpList)))==0)) {
+ /* Set the mode to something that is not a regular file, thereby
+ * faking out writeTarFile into thinking that nothing further need
+ * be done for this file. Yes, I know this is ugly, but it works. */
+ statbuf->st_mode = 0;
+ return( TRUE);
+ }
}
+#endif
putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
for (size=0; size<(2*TAR_BLOCK_SIZE); size++) {
write(tbInfo.tarFd, "\0", 1);
}
+
+ /* To be pedantically correct, we would check if the tarball
+ * is smaller then 20 tar blocks, and pad it if it was smaller,
+ * but that isn't necessary for GNU tar interoperability, and
+ * so is considered a waste of space */
+
/* Hang up the tools, close up shop, head home */
close(tarFd);
if (errorFlag == TRUE) {
projects / platform / upstream / busybox.git / commitdiff