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-rw-r--r--archival/tar.c100
-rw-r--r--tar.c100
2 files changed, 114 insertions, 86 deletions
diff --git a/archival/tar.c b/archival/tar.c
index 8f83d04..99f166c 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -141,41 +141,11 @@ typedef struct TarInfo TarInfo;
static const unsigned long TarChecksumOffset = (const unsigned long)&(((TarHeader *)0)->chksum);
-/*
- * Static data.
- */
-static int inHeader; // <- check me
-static int badHeader;
-static int skipFileFlag;
-static int warnedRoot;
-static int eofFlag;
-static long dataCc;
-static int outFd;
-static const char *outName;
-
-static int mode;
-static int uid;
-static int gid;
-static time_t mtime;
-
-/*
- * Static data associated with the tar file.
- */
-static int tarFd;
-static dev_t tarDev;
-static ino_t tarInode;
-
-
-/*
- * Local procedures to restore files from a tar file.
- */
+/* Local procedures to restore files from a tar file. */
static int readTarFile(const char* tarName, int extractFlag, int listFlag,
int tostdoutFlag, int verboseFlag);
-static void readData(const char *cp, int count);
static long getOctal(const char *cp, int len);
static int parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header);
-static int wantFileName(const char *fileName,
- int argc, char **argv);
#ifdef BB_FEATURE_TAR_CREATE
/*
@@ -286,10 +256,35 @@ extern int tar_main(int argc, char **argv)
static void
tarExtractRegularFile(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
{
+ return;
+}
+
+static void
+tarExtractDirectory(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+
+static void
+tarExtractHardLink(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+
+static void
+tarExtractSymLink(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+static void
+tarExtractSpecial(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
}
+
/*
* Read a tar file and extract or list the specified files within it.
* If the list is empty than all files are extracted or listed.
@@ -327,6 +322,25 @@ static int readTarFile(const char* tarName, int extractFlag, int listFlag,
}
if ( *(header.name) == '\0' )
goto endgame;
+
+ if (extractFlag == FALSE) {
+ if (verboseFlag == TRUE) {
+ printf("%s %3d/%-d ", modeString(header.mode), header.uid, header.gid);
+ if (header.type==CHRTYPE || header.type==BLKTYPE)
+ printf("%4d,%4d %s ", MAJOR(header.device),
+ MINOR(header.device), timeString(header.mtime));
+ else
+ printf("%9ld %s ", header.size, timeString(header.mtime));
+ }
+ printf("%s", header.name);
+
+ if (header.type==LNKTYPE)
+ printf(" (link to \"%s\")", hp->linkName);
+ else if (header.type==SYMTYPE)
+ printf(" (symlink to \"%s\")", hp->linkName);
+ printf("\n");
+ continue;
+ }
/* If we got here, we can be certain we have a legitimate
* header to work with. So work with it. */
@@ -339,22 +353,20 @@ static int readTarFile(const char* tarName, int extractFlag, int listFlag,
tarExtractRegularFile(&header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
}
-#if 0
- case Directory:
+ case DIRTYPE:
tarExtractDirectory( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case HardLink:
+ case LNKTYPE:
tarExtractHardLink( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case SymbolicLink:
+ case SYMTYPE:
tarExtractSymLink( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case CharacterDevice:
- case BlockDevice:
- case FIFO:
+ case CHRTYPE:
+ case BLKTYPE:
+ case FIFOTYPE:
tarExtractSpecial( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
-#endif
default:
close( tarFd);
return( FALSE);
@@ -405,7 +417,9 @@ static long getOctal(const char *cp, int size)
static int
parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header)
{
- long major, minor, chksum, sum;
+ int i;
+ long chksum, sum;
+ unsigned char *s = (unsigned char *)rawHeader;
header->name = rawHeader->name;
header->mode = getOctal(rawHeader->mode, sizeof(rawHeader->mode));
@@ -423,10 +437,10 @@ parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header)
sum = ' ' * sizeof(rawHeader->chksum);
for ( i = TarChecksumOffset; i > 0; i-- )
sum += *s++;
- s += sizeof(h->chksum);
- for ( i = (512 - TarChecksumOffset - sizeof(h->chksum)); i > 0; i-- )
+ s += sizeof(rawHeader->chksum);
+ for ( i = (512 - TarChecksumOffset - sizeof(rawHeader->chksum)); i > 0; i-- )
sum += *s++;
- if (sum == checksum )
+ if (sum == chksum )
return ( TRUE);
return( FALSE);
}
diff --git a/tar.c b/tar.c
index 8f83d04..99f166c 100644
--- a/tar.c
+++ b/tar.c
@@ -141,41 +141,11 @@ typedef struct TarInfo TarInfo;
static const unsigned long TarChecksumOffset = (const unsigned long)&(((TarHeader *)0)->chksum);
-/*
- * Static data.
- */
-static int inHeader; // <- check me
-static int badHeader;
-static int skipFileFlag;
-static int warnedRoot;
-static int eofFlag;
-static long dataCc;
-static int outFd;
-static const char *outName;
-
-static int mode;
-static int uid;
-static int gid;
-static time_t mtime;
-
-/*
- * Static data associated with the tar file.
- */
-static int tarFd;
-static dev_t tarDev;
-static ino_t tarInode;
-
-
-/*
- * Local procedures to restore files from a tar file.
- */
+/* Local procedures to restore files from a tar file. */
static int readTarFile(const char* tarName, int extractFlag, int listFlag,
int tostdoutFlag, int verboseFlag);
-static void readData(const char *cp, int count);
static long getOctal(const char *cp, int len);
static int parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header);
-static int wantFileName(const char *fileName,
- int argc, char **argv);
#ifdef BB_FEATURE_TAR_CREATE
/*
@@ -286,10 +256,35 @@ extern int tar_main(int argc, char **argv)
static void
tarExtractRegularFile(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
{
+ return;
+}
+
+static void
+tarExtractDirectory(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+
+static void
+tarExtractHardLink(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+
+static void
+tarExtractSymLink(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
+}
+static void
+tarExtractSpecial(TarInfo *header, int extractFlag, int listFlag, int tostdoutFlag, int verboseFlag)
+{
+ return;
}
+
/*
* Read a tar file and extract or list the specified files within it.
* If the list is empty than all files are extracted or listed.
@@ -327,6 +322,25 @@ static int readTarFile(const char* tarName, int extractFlag, int listFlag,
}
if ( *(header.name) == '\0' )
goto endgame;
+
+ if (extractFlag == FALSE) {
+ if (verboseFlag == TRUE) {
+ printf("%s %3d/%-d ", modeString(header.mode), header.uid, header.gid);
+ if (header.type==CHRTYPE || header.type==BLKTYPE)
+ printf("%4d,%4d %s ", MAJOR(header.device),
+ MINOR(header.device), timeString(header.mtime));
+ else
+ printf("%9ld %s ", header.size, timeString(header.mtime));
+ }
+ printf("%s", header.name);
+
+ if (header.type==LNKTYPE)
+ printf(" (link to \"%s\")", hp->linkName);
+ else if (header.type==SYMTYPE)
+ printf(" (symlink to \"%s\")", hp->linkName);
+ printf("\n");
+ continue;
+ }
/* If we got here, we can be certain we have a legitimate
* header to work with. So work with it. */
@@ -339,22 +353,20 @@ static int readTarFile(const char* tarName, int extractFlag, int listFlag,
tarExtractRegularFile(&header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
}
-#if 0
- case Directory:
+ case DIRTYPE:
tarExtractDirectory( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case HardLink:
+ case LNKTYPE:
tarExtractHardLink( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case SymbolicLink:
+ case SYMTYPE:
tarExtractSymLink( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
- case CharacterDevice:
- case BlockDevice:
- case FIFO:
+ case CHRTYPE:
+ case BLKTYPE:
+ case FIFOTYPE:
tarExtractSpecial( &header, extractFlag, listFlag, tostdoutFlag, verboseFlag);
break;
-#endif
default:
close( tarFd);
return( FALSE);
@@ -405,7 +417,9 @@ static long getOctal(const char *cp, int size)
static int
parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header)
{
- long major, minor, chksum, sum;
+ int i;
+ long chksum, sum;
+ unsigned char *s = (unsigned char *)rawHeader;
header->name = rawHeader->name;
header->mode = getOctal(rawHeader->mode, sizeof(rawHeader->mode));
@@ -423,10 +437,10 @@ parseTarHeader(struct TarHeader *rawHeader, struct TarInfo *header)
sum = ' ' * sizeof(rawHeader->chksum);
for ( i = TarChecksumOffset; i > 0; i-- )
sum += *s++;
- s += sizeof(h->chksum);
- for ( i = (512 - TarChecksumOffset - sizeof(h->chksum)); i > 0; i-- )
+ s += sizeof(rawHeader->chksum);
+ for ( i = (512 - TarChecksumOffset - sizeof(rawHeader->chksum)); i > 0; i-- )
sum += *s++;
- if (sum == checksum )
+ if (sum == chksum )
return ( TRUE);
return( FALSE);
}
generated by cgit v1.1 at 2024-12-25 16:55:16 +0000