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Run through indent, use /* */ style comments, change extern to static

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This commit is contained in:
Glenn L McGrath 2002-08-22 13:44:08 +00:00
parent 4176972db5
commit a0ee881ba4
1 changed files with 258 additions and 284 deletions
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542
archival/tar.c
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@ -56,8 +56,8 @@
#ifdef CONFIG_FEATURE_TAR_CREATE
/* Tar file constants */
# define TAR_MAGIC "ustar" /* ustar and a null */
# define TAR_VERSION " " /* Be compatable with GNU tar format */
# define TAR_MAGIC "ustar" /* ustar and a null */
# define TAR_VERSION " " /* Be compatable with GNU tar format */
# ifndef MAJOR
# define MAJOR(dev) (((dev)>>8)&0xff)
@ -69,26 +69,25 @@ static const int TAR_MAGIC_LEN = 6;
static const int TAR_VERSION_LEN = 2;
/* POSIX tar Header Block, from POSIX 1003.1-1990 */
enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
struct TarHeader
{ /* byte offset */
char name[NAME_SIZE]; /* 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[NAME_SIZE]; /* 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) */
enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
struct TarHeader { /* byte offset */
char name[NAME_SIZE]; /* 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[NAME_SIZE]; /* 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;
@ -98,58 +97,56 @@ typedef struct TarHeader TarHeader;
** Even these functions use the xxxHardLinkInfo() functions.
*/
typedef struct HardLinkInfo HardLinkInfo;
struct HardLinkInfo
{
HardLinkInfo *next; /* Next entry in list */
dev_t dev; /* Device number */
ino_t ino; /* Inode number */
short linkCount; /* (Hard) Link Count */
char name[1]; /* Start of filename (must be last) */
struct HardLinkInfo {
HardLinkInfo *next; /* Next entry in list */
dev_t dev; /* Device number */
ino_t ino; /* Inode number */
short linkCount; /* (Hard) Link Count */
char name[1]; /* Start of filename (must be last) */
};
/* Some info to be carried along when creating a new tarball */
struct TarBallInfo
{
char* fileName; /* File name of the tarball */
int tarFd; /* Open-for-write file descriptor
for the tarball */
struct stat statBuf; /* Stat info for the tarball, letting
us know the inode and device that the
tarball lives, so we can avoid trying
to include the tarball into itself */
int verboseFlag; /* Whether to print extra stuff or not */
char** excludeList; /* List of files to not include */
HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
struct TarBallInfo {
char *fileName; /* File name of the tarball */
int tarFd; /* Open-for-write file descriptor
for the tarball */
struct stat statBuf; /* Stat info for the tarball, letting
us know the inode and device that the
tarball lives, so we can avoid trying
to include the tarball into itself */
int verboseFlag; /* Whether to print extra stuff or not */
char **excludeList; /* List of files to not include */
HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
};
typedef struct TarBallInfo TarBallInfo;
/* A nice enum with all the possible tar file content types */
enum TarFileType
{
REGTYPE = '0', /* regular file */
REGTYPE0 = '\0', /* regular file (ancient bug compat)*/
LNKTYPE = '1', /* hard link */
SYMTYPE = '2', /* symbolic link */
CHRTYPE = '3', /* character special */
BLKTYPE = '4', /* block special */
DIRTYPE = '5', /* directory */
FIFOTYPE = '6', /* FIFO special */
CONTTYPE = '7', /* reserved */
GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
enum TarFileType {
REGTYPE = '0', /* regular file */
REGTYPE0 = '\0', /* regular file (ancient bug compat) */
LNKTYPE = '1', /* hard link */
SYMTYPE = '2', /* symbolic link */
CHRTYPE = '3', /* character special */
BLKTYPE = '4', /* block special */
DIRTYPE = '5', /* directory */
FIFOTYPE = '6', /* FIFO special */
CONTTYPE = '7', /* reserved */
GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
};
typedef enum TarFileType TarFileType;
/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
extern inline void
addHardLinkInfo (HardLinkInfo **hlInfoHeadPtr, dev_t dev, ino_t ino,
short linkCount, const char *name)
static inline void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr, dev_t dev,
ino_t ino, short linkCount,
const char *name)
{
/* Note: hlInfoHeadPtr can never be NULL! */
HardLinkInfo *hlInfo;
hlInfo = (HardLinkInfo *)xmalloc(sizeof(HardLinkInfo)+strlen(name)+1);
hlInfo =
(HardLinkInfo *) xmalloc(sizeof(HardLinkInfo) + strlen(name) + 1);
if (hlInfo) {
hlInfo->next = *hlInfoHeadPtr;
*hlInfoHeadPtr = hlInfo;
@ -161,8 +158,7 @@ addHardLinkInfo (HardLinkInfo **hlInfoHeadPtr, dev_t dev, ino_t ino,
return;
}
static void
freeHardLinkInfo (HardLinkInfo **hlInfoHeadPtr)
static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr)
{
HardLinkInfo *hlInfo = NULL;
HardLinkInfo *hlInfoNext = NULL;
@ -180,21 +176,21 @@ freeHardLinkInfo (HardLinkInfo **hlInfoHeadPtr)
}
/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
extern inline HardLinkInfo *
findHardLinkInfo (HardLinkInfo *hlInfo, dev_t dev, ino_t ino)
static inline HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, dev_t dev,
ino_t ino)
{
while(hlInfo) {
while (hlInfo) {
if ((ino == hlInfo->ino) && (dev == hlInfo->dev))
break;
hlInfo = hlInfo->next;
}
return(hlInfo);
return (hlInfo);
}
/* Put an octal string into the specified buffer.
* The number is zero and space padded and possibly null padded.
* Returns TRUE if successful. */
static int putOctal (char *cp, int len, long value)
* Returns TRUE if successful. */
static int putOctal(char *cp, int len, long value)
{
int tempLength;
char tempBuffer[32];
@ -202,10 +198,10 @@ static int putOctal (char *cp, int len, long value)
/* Create a string of the specified length with an initial space,
* leading zeroes and the octal number, and a trailing null. */
sprintf (tempString, "%0*lo", len - 1, value);
sprintf(tempString, "%0*lo", len - 1, value);
/* If the string is too large, suppress the leading space. */
tempLength = strlen (tempString) + 1;
tempLength = strlen(tempString) + 1;
if (tempLength > len) {
tempLength--;
tempString++;
@ -220,71 +216,77 @@ static int putOctal (char *cp, int len, long value)
return FALSE;
/* Copy the string to the field. */
memcpy (cp, tempString, len);
memcpy(cp, tempString, len);
return TRUE;
}
/* Write out a tar header for the specified file/directory/whatever */
extern inline int
writeTarHeader(struct TarBallInfo *tbInfo, const char *header_name,
const char *real_name, struct stat *statbuf)
static inline int writeTarHeader(struct TarBallInfo *tbInfo,
const char *header_name,
const char *real_name, struct stat *statbuf)
{
long chksum=0;
long chksum = 0;
struct TarHeader header;
const unsigned char *cp = (const unsigned char *) &header;
ssize_t size = sizeof(struct TarHeader);
memset( &header, 0, size);
strncpy(header.name, header_name, sizeof(header.name));
memset(&header, 0, size);
strncpy(header.name, header_name, sizeof(header.name));
putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */
putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */
putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
strncpy(header.magic, TAR_MAGIC TAR_VERSION,
TAR_MAGIC_LEN + TAR_VERSION_LEN );
strncpy(header.magic, TAR_MAGIC TAR_VERSION,
TAR_MAGIC_LEN + TAR_VERSION_LEN);
/* Enter the user and group names (default to root if it fails) */
my_getpwuid(header.uname, statbuf->st_uid);
if (! *header.uname)
if (!*header.uname)
strcpy(header.uname, "root");
my_getgrgid(header.gname, statbuf->st_gid);
if (! *header.uname)
if (!*header.uname)
strcpy(header.uname, "root");
if (tbInfo->hlInfo) {
/* This is a hard link */
header.typeflag = LNKTYPE;
strncpy(header.linkname, tbInfo->hlInfo->name, sizeof(header.linkname));
strncpy(header.linkname, tbInfo->hlInfo->name,
sizeof(header.linkname));
} else if (S_ISLNK(statbuf->st_mode)) {
char *lpath = xreadlink(real_name);
if (!lpath) /* Already printed err msg inside xreadlink() */
return ( FALSE);
header.typeflag = SYMTYPE;
strncpy(header.linkname, lpath, sizeof(header.linkname));
if (!lpath) /* Already printed err msg inside xreadlink() */
return (FALSE);
header.typeflag = SYMTYPE;
strncpy(header.linkname, lpath, sizeof(header.linkname));
free(lpath);
} else if (S_ISDIR(statbuf->st_mode)) {
header.typeflag = DIRTYPE;
strncat(header.name, "/", sizeof(header.name));
header.typeflag = DIRTYPE;
strncat(header.name, "/", sizeof(header.name));
} else if (S_ISCHR(statbuf->st_mode)) {
header.typeflag = CHRTYPE;
putOctal(header.devmajor, sizeof(header.devmajor), MAJOR(statbuf->st_rdev));
putOctal(header.devminor, sizeof(header.devminor), MINOR(statbuf->st_rdev));
header.typeflag = CHRTYPE;
putOctal(header.devmajor, sizeof(header.devmajor),
MAJOR(statbuf->st_rdev));
putOctal(header.devminor, sizeof(header.devminor),
MINOR(statbuf->st_rdev));
} else if (S_ISBLK(statbuf->st_mode)) {
header.typeflag = BLKTYPE;
putOctal(header.devmajor, sizeof(header.devmajor), MAJOR(statbuf->st_rdev));
putOctal(header.devminor, sizeof(header.devminor), MINOR(statbuf->st_rdev));
header.typeflag = BLKTYPE;
putOctal(header.devmajor, sizeof(header.devmajor),
MAJOR(statbuf->st_rdev));
putOctal(header.devminor, sizeof(header.devminor),
MINOR(statbuf->st_rdev));
} else if (S_ISFIFO(statbuf->st_mode)) {
header.typeflag = FIFOTYPE;
header.typeflag = FIFOTYPE;
} else if (S_ISREG(statbuf->st_mode)) {
header.typeflag = REGTYPE;
header.typeflag = REGTYPE;
putOctal(header.size, sizeof(header.size), statbuf->st_size);
} else {
error_msg("%s: Unknown file type", real_name);
return ( FALSE);
return (FALSE);
}
/* Calculate and store the checksum (i.e., the sum of all of the bytes of
@ -297,30 +299,33 @@ writeTarHeader(struct TarBallInfo *tbInfo, const char *header_name,
while (size-- > 0)
chksum += *cp++;
putOctal(header.chksum, 7, chksum);
/* Now write the header out to disk */
if ((size=full_write(tbInfo->tarFd, (char*)&header, sizeof(struct TarHeader))) < 0) {
error_msg(io_error, real_name, strerror(errno));
return ( FALSE);
if ((size =
full_write(tbInfo->tarFd, (char *) &header,
sizeof(struct TarHeader))) < 0) {
error_msg(io_error, real_name, strerror(errno));
return (FALSE);
}
/* Pad the header up to the tar block size */
for (; size<TAR_BLOCK_SIZE; size++) {
for (; size < TAR_BLOCK_SIZE; size++) {
write(tbInfo->tarFd, "\0", 1);
}
/* Now do the verbose thing (or not) */
if (tbInfo->verboseFlag) {
FILE *vbFd = stdout;
if (tbInfo->verboseFlag == 2) // If the archive goes to stdout, verbose to stderr
if (tbInfo->verboseFlag == 2) /* If the archive goes to stdout, verbose to stderr */
vbFd = stderr;
fprintf(vbFd, "%s\n", header.name);
}
return ( TRUE);
return (TRUE);
}
# if defined CONFIG_FEATURE_TAR_EXCLUDE
extern inline int exclude_file(char **excluded_files, const char *file)
static inline int exclude_file(char **excluded_files, const char *file)
{
int i;
@ -337,7 +342,7 @@ extern inline int exclude_file(char **excluded_files, const char *file)
for (p = file; p[0] != '\0'; p++) {
if ((p == file || p[-1] == '/') && p[0] != '/' &&
fnmatch(excluded_files[i], p,
fnmatch(excluded_files[i], p,
FNM_PATHNAME | FNM_LEADING_DIR) == 0)
return 1;
}
@ -348,55 +353,57 @@ extern inline int exclude_file(char **excluded_files, const char *file)
}
#endif
static int writeFileToTarball(const char *fileName, struct stat *statbuf, void* userData)
static int writeFileToTarball(const char *fileName, struct stat *statbuf,
void *userData)
{
struct TarBallInfo *tbInfo = (struct TarBallInfo *)userData;
struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
const char *header_name;
/*
** Check to see if we are dealing with a hard link.
** If so -
** Treat the first occurance of a given dev/inode as a file while
** treating any additional occurances as hard links. This is done
** by adding the file information to the HardLinkInfo linked list.
*/
** Check to see if we are dealing with a hard link.
** If so -
** Treat the first occurance of a given dev/inode as a file while
** treating any additional occurances as hard links. This is done
** by adding the file information to the HardLinkInfo linked list.
*/
tbInfo->hlInfo = NULL;
if (statbuf->st_nlink > 1) {
tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf->st_dev,
statbuf->st_ino);
tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf->st_dev,
statbuf->st_ino);
if (tbInfo->hlInfo == NULL)
addHardLinkInfo (&tbInfo->hlInfoHead, statbuf->st_dev,
statbuf->st_ino, statbuf->st_nlink, fileName);
addHardLinkInfo(&tbInfo->hlInfoHead, statbuf->st_dev,
statbuf->st_ino, statbuf->st_nlink, fileName);
}
/* It is against the rules to archive a socket */
if (S_ISSOCK(statbuf->st_mode)) {
error_msg("%s: socket ignored", fileName);
return( TRUE);
return (TRUE);
}
/* It is a bad idea to store the archive we are in the process of creating,
* so check the device and inode to be sure that this particular file isn't
* the new tarball */
if (tbInfo->statBuf.st_dev == statbuf->st_dev &&
tbInfo->statBuf.st_ino == statbuf->st_ino) {
tbInfo->statBuf.st_ino == statbuf->st_ino) {
error_msg("%s: file is the archive; skipping", fileName);
return( TRUE);
return (TRUE);
}
header_name = fileName;
while (header_name[0] == '/') {
static int alreadyWarned=FALSE;
if (alreadyWarned==FALSE) {
static int alreadyWarned = FALSE;
if (alreadyWarned == FALSE) {
error_msg("Removing leading '/' from member names");
alreadyWarned=TRUE;
alreadyWarned = TRUE;
}
header_name++;
}
if (strlen(fileName) >= NAME_SIZE) {
error_msg(name_longer_than_foo, NAME_SIZE);
return ( TRUE);
return (TRUE);
}
if (header_name[0] == '\0')
@ -406,60 +413,61 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf, void*
if (exclude_file(tbInfo->excludeList, header_name)) {
return SKIP;
}
# endif //CONFIG_FEATURE_TAR_EXCLUDE
# endif /* CONFIG_FEATURE_TAR_EXCLUDE */
if (writeTarHeader(tbInfo, header_name, fileName, statbuf)==FALSE) {
return( FALSE);
}
if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
return (FALSE);
}
/* Now, if the file is a regular file, copy it out to the tarball */
if ((tbInfo->hlInfo == NULL)
&& (S_ISREG(statbuf->st_mode))) {
int inputFileFd;
&& (S_ISREG(statbuf->st_mode))) {
int inputFileFd;
char buffer[BUFSIZ];
ssize_t size=0, readSize=0;
ssize_t size = 0, readSize = 0;
/* open the file we want to archive, and make sure all is well */
if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
error_msg("%s: Cannot open: %s", fileName, strerror(errno));
return( FALSE);
return (FALSE);
}
/* write the file to the archive */
while ( (size = full_read(inputFileFd, buffer, sizeof(buffer))) > 0 ) {
if (full_write(tbInfo->tarFd, buffer, size) != size ) {
while ((size = full_read(inputFileFd, buffer, sizeof(buffer))) > 0) {
if (full_write(tbInfo->tarFd, buffer, size) != size) {
/* Output file seems to have a problem */
error_msg(io_error, fileName, strerror(errno));
return( FALSE);
error_msg(io_error, fileName, strerror(errno));
return (FALSE);
}
readSize+=size;
readSize += size;
}
if (size == -1) {
error_msg(io_error, fileName, strerror(errno));
return( FALSE);
error_msg(io_error, fileName, strerror(errno));
return (FALSE);
}
/* Pad the file up to the tar block size */
for (; (readSize%TAR_BLOCK_SIZE) != 0; readSize++) {
for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
write(tbInfo->tarFd, "\0", 1);
}
close( inputFileFd);
close(inputFileFd);
}
return( TRUE);
return (TRUE);
}
extern inline int writeTarFile(const char* tarName, int verboseFlag, char **argv,
char** excludeList, int gzip)
static inline int writeTarFile(const char *tarName, int verboseFlag,
char **argv, char **excludeList, int gzip)
{
#ifdef CONFIG_FEATURE_TAR_GZIP
int gzipDataPipe [2] = { -1, -1 };
int gzipStatusPipe [2] = { -1, -1 };
int gzipDataPipe[2] = { -1, -1 };
int gzipStatusPipe[2] = { -1, -1 };
pid_t gzipPid = 0;
#endif
int errorFlag=FALSE;
int errorFlag = FALSE;
ssize_t size;
struct TarBallInfo tbInfo;
tbInfo.hlInfoHead = NULL;
/* Make sure there is at least one file to tar up. */
@ -470,85 +478,84 @@ extern inline int writeTarFile(const char* tarName, int verboseFlag, char **argv
if (tarName == NULL) {
tbInfo.tarFd = fileno(stdout);
tbInfo.verboseFlag = verboseFlag ? 2 : 0;
}
else {
tbInfo.tarFd = open (tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
} else {
tbInfo.tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
tbInfo.verboseFlag = verboseFlag ? 1 : 0;
}
if (tbInfo.tarFd < 0) {
perror_msg( "Error opening '%s'", tarName);
perror_msg("Error opening '%s'", tarName);
freeHardLinkInfo(&tbInfo.hlInfoHead);
return ( FALSE);
return (FALSE);
}
/* Store the stat info for the tarball's file, so
* can avoid including the tarball into itself.... */
if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0)
error_msg_and_die(io_error, tarName, strerror(errno));
error_msg_and_die(io_error, tarName, strerror(errno));
#ifdef CONFIG_FEATURE_TAR_GZIP
if ( gzip ) {
if ( socketpair ( AF_UNIX, SOCK_STREAM, 0, gzipDataPipe ) < 0 || pipe ( gzipStatusPipe ) < 0 )
perror_msg_and_die ( "Failed to create gzip pipe" );
signal ( SIGPIPE, SIG_IGN ); // we only want EPIPE on errors
gzipPid = fork ( );
if ( gzipPid == 0 ) {
dup2 ( gzipDataPipe [0], 0 );
close ( gzipDataPipe [1] );
if (gzip) {
if (socketpair(AF_UNIX, SOCK_STREAM, 0, gzipDataPipe) < 0
|| pipe(gzipStatusPipe) < 0)
perror_msg_and_die("Failed to create gzip pipe");
if ( tbInfo. tarFd != 1 );
dup2 ( tbInfo. tarFd, 1 );
close ( gzipStatusPipe [0] );
fcntl( gzipStatusPipe [1], F_SETFD, FD_CLOEXEC ); // close on exec shows sucess
signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
execl ( "/bin/gzip", "gzip", "-f", 0 );
write ( gzipStatusPipe [1], "", 1 );
close ( gzipStatusPipe [1] );
exit ( -1 );
}
else if ( gzipPid > 0 ) {
close ( gzipDataPipe [0] );
close ( gzipStatusPipe [1] );
while ( 1 ) {
gzipPid = fork();
if (gzipPid == 0) {
dup2(gzipDataPipe[0], 0);
close(gzipDataPipe[1]);
if (tbInfo.tarFd != 1);
dup2(tbInfo.tarFd, 1);
close(gzipStatusPipe[0]);
fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */
execl("/bin/gzip", "gzip", "-f", 0);
write(gzipStatusPipe[1], "", 1);
close(gzipStatusPipe[1]);
exit(-1);
} else if (gzipPid > 0) {
close(gzipDataPipe[0]);
close(gzipStatusPipe[1]);
while (1) {
char buf;
int n = read ( gzipStatusPipe [0], &buf, 1 );
if ( n == 1 )
error_msg_and_die ( "Could not exec gzip process" ); // socket was not closed => error
else if (( n < 0 ) && ( errno==EAGAIN || errno==EINTR ))
continue; // try it again
break;
int n = read(gzipStatusPipe[0], &buf, 1);
if (n == 1)
error_msg_and_die("Could not exec gzip process"); /* socket was not closed => error */
else if ((n < 0) && (errno == EAGAIN || errno == EINTR))
continue; /* try it again */
break;
}
close ( gzipStatusPipe [0] );
tbInfo. tarFd = gzipDataPipe [1];
}
else {
perror_msg_and_die ( "Failed to fork gzip process" );
close(gzipStatusPipe[0]);
tbInfo.tarFd = gzipDataPipe[1];
} else {
perror_msg_and_die("Failed to fork gzip process");
}
}
#endif
tbInfo.excludeList=excludeList;
tbInfo.excludeList = excludeList;
/* Read the directory/files and iterate over them one at a time */
while (*argv != NULL) {
if (! recursive_action(*argv++, TRUE, FALSE, FALSE,
writeFileToTarball, writeFileToTarball,
(void*) &tbInfo)) {
if (!recursive_action(*argv++, TRUE, FALSE, FALSE,
writeFileToTarball, writeFileToTarball,
(void *) &tbInfo)) {
errorFlag = TRUE;
}
}
/* Write two empty blocks to the end of the archive */
for (size=0; size<(2*TAR_BLOCK_SIZE); size++) {
for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) {
write(tbInfo.tarFd, "\0", 1);
}
@ -559,21 +566,21 @@ extern inline int writeTarFile(const char* tarName, int verboseFlag, char **argv
/* Hang up the tools, close up shop, head home */
close(tbInfo.tarFd);
if (errorFlag)
if (errorFlag)
error_msg("Error exit delayed from previous errors");
freeHardLinkInfo(&tbInfo.hlInfoHead);
#ifdef CONFIG_FEATURE_TAR_GZIP
if ( gzip && gzipPid ) {
if ( waitpid ( gzipPid, NULL, 0 ) == -1 )
printf ( "Couldnt wait ?" );
#ifdef CONFIG_FEATURE_TAR_GZIP
if (gzip && gzipPid) {
if (waitpid(gzipPid, NULL, 0) == -1)
printf("Couldnt wait ?");
}
#endif
return !errorFlag;
}
#endif //tar_create
#endif /* tar_create */
void append_file_to_list(const char *new_name, char ***list, int *list_count)
{
@ -583,62 +590,21 @@ void append_file_to_list(const char *new_name, char ***list, int *list_count)
(*list)[*list_count] = NULL;
}
void append_file_list_to_list(char *filename, char ***name_list, int *num_of_entries)
void append_file_list_to_list(char *filename, char ***name_list,
int *num_of_entries)
{
FILE *src_stream;
char *line;
src_stream = xfopen(filename, "r");
while ((line = get_line_from_file(src_stream)) != NULL) {
chomp (line);
chomp(line);
append_file_to_list(line, name_list, num_of_entries);
free(line);
}
fclose(src_stream);
}
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
/*
* Create a list of names that are in the include list AND NOT in the exclude lists
*/
#if 0 /* this is unused */
char **list_and_not_list(char **include_list, char **exclude_list)
{
char **new_include_list = NULL;
int new_include_count = 0;
int include_count = 0;
int exclude_count;
if (include_list == NULL) {
return(NULL);
}
while (include_list[include_count] != NULL) {
int found = FALSE;
exclude_count = 0;
while (exclude_list[exclude_count] != NULL) {
if (strcmp(include_list[include_count], exclude_list[exclude_count]) == 0) {
found = TRUE;
break;
}
exclude_count++;
}
if (! found) {
new_include_list = realloc(new_include_list, sizeof(char *) * (include_count + 2));
new_include_list[new_include_count] = include_list[include_count];
new_include_count++;
} else {
free(include_list[include_count]);
}
include_count++;
}
new_include_list[new_include_count] = NULL;
return(new_include_list);
}
#endif
#endif
int tar_main(int argc, char **argv)
{
enum untar_funct_e {
@ -661,6 +627,7 @@ int tar_main(int argc, char **argv)
unsigned short untar_funct_required = 0;
unsigned short extract_function = 0;
int include_list_count = 0;
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
int exclude_list_count = 0;
#endif
@ -676,6 +643,7 @@ int tar_main(int argc, char **argv)
/* Prepend '-' to the first argument if required */
if (argv[1][0] != '-') {
char *tmp = xmalloc(strlen(argv[1]) + 2);
tmp[0] = '-';
strcpy(tmp + 1, argv[1]);
argv[1] = tmp;
@ -684,36 +652,40 @@ int tar_main(int argc, char **argv)
while ((opt = getopt(argc, argv, "ctxT:X:C:f:Opvz")) != -1) {
switch (opt) {
/* One and only one of these is required */
/* One and only one of these is required */
case 'c':
untar_funct_required |= untar_create;
break;
case 't':
untar_funct_required |= untar_list;
extract_function |= extract_list |extract_unconditional;
extract_function |= extract_list | extract_unconditional;
break;
case 'x':
untar_funct_required |= untar_extract;
extract_function |= (extract_all_to_fs | extract_unconditional | extract_create_leading_dirs);
extract_function |=
(extract_all_to_fs | extract_unconditional |
extract_create_leading_dirs);
break;
/* These are optional */
/* Exclude or Include files listed in <filename>*/
/* These are optional */
/* Exclude or Include files listed in <filename> */
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
case 'X':
append_file_list_to_list(optarg, &exclude_list, &exclude_list_count);
append_file_list_to_list(optarg, &exclude_list,
&exclude_list_count);
break;
#endif
case 'T':
// by default a list is an include list
append_file_list_to_list(optarg, &include_list, &include_list_count);
/* by default a list is an include list */
append_file_list_to_list(optarg, &include_list,
&include_list_count);
break;
case 'C': // Change to dir <optarg>
case 'C': /* Change to dir <optarg> */
/* Make sure dst_prefix ends in a '/' */
dst_prefix = concat_path_file(optarg, "/");
break;
case 'f': // archive filename
case 'f': /* archive filename */
if (strcmp(optarg, "-") == 0) {
src_filename = NULL;
} else {
@ -742,9 +714,9 @@ int tar_main(int argc, char **argv)
if (untar_funct_required == 0) {
error_msg_and_die("You must specify one of the `-ctx' options");
}
if ((untar_funct_required != untar_create) &&
(untar_funct_required != untar_extract) &&
(untar_funct_required != untar_list)) {
if ((untar_funct_required != untar_create) &&
(untar_funct_required != untar_extract) &&
(untar_funct_required != untar_list)) {
error_msg_and_die("You may not specify more than one `ctx' option.");
}
untar_funct |= untar_funct_required;
@ -770,11 +742,12 @@ int tar_main(int argc, char **argv)
if (untar_funct & untar_unzip) {
uncompressed_stream = gz_open(src_stream, &gunzip_pid);
} else
#endif // CONFIG_FEATURE_TAR_GZIP
#endif /* CONFIG_FEATURE_TAR_GZIP */
uncompressed_stream = src_stream;
/* extract or list archive */
unarchive(uncompressed_stream, stdout, &get_header_tar, extract_function, dst_prefix, include_list, exclude_list);
unarchive(uncompressed_stream, stdout, &get_header_tar,
extract_function, dst_prefix, include_list, exclude_list);
fclose(uncompressed_stream);
}
#ifdef CONFIG_FEATURE_TAR_CREATE
@ -787,26 +760,27 @@ int tar_main(int argc, char **argv)
if (untar_funct & untar_unzip)
gzipFlag = TRUE;
#endif // CONFIG_FEATURE_TAR_GZIP
if (extract_function & extract_verbose_list)
#endif /* CONFIG_FEATURE_TAR_GZIP */
if (extract_function & extract_verbose_list)
verboseFlag = TRUE;
writeTarFile(src_filename, verboseFlag, include_list, exclude_list, gzipFlag);
writeTarFile(src_filename, verboseFlag, include_list, exclude_list,
gzipFlag);
}
#endif // CONFIG_FEATURE_TAR_CREATE
#endif /* CONFIG_FEATURE_TAR_CREATE */
/* Cleanups */
#ifdef CONFIG_FEATURE_TAR_GZIP
if ( !( untar_funct & untar_create ) && ( untar_funct & untar_unzip )) {
if (!(untar_funct & untar_create) && (untar_funct & untar_unzip)) {
fclose(src_stream);
close(gz_fd);
gz_close(gunzip_pid);
}
#endif // CONFIG_FEATURE_TAR_GZIP
#endif /* CONFIG_FEATURE_TAR_GZIP */
#ifdef CONFIG_FEATURE_CLEAN_UP
if (src_filename) {
free(src_filename);
}
#endif
return(EXIT_SUCCESS);
return (EXIT_SUCCESS);
}