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-rw-r--r--archival/tar.c546
1 files changed, 260 insertions, 286 deletions
diff --git a/archival/tar.c b/archival/tar.c
index b68882b52..2ab022954 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -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 ( 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 ) {
+ 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 (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);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 14:26:24 +0000