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Remove the trailing ".QQ" from squeezed files before extracting.

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Fail if the user tries to extract comments from a Binary II archive
(with the "-c flag).
This commit is contained in:
Andy McFadden 2002-10-09 00:38:37 +00:00
parent 550ff22758
commit 21c4d9027a
1 changed files with 89 additions and 50 deletions

103
nulib2/Binary2.c

@ -1114,43 +1114,19 @@ BNYListDebug(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
return err;
}
/* quick enum to simplify our lives a bit */
typedef enum { kBNYExtNormal, kBNYExtPipe, kBNYExtTest } ExtMode;
/*
* Handle "extract", "extract to pipe", and "test".
* Handle "extraction" of a directory.
*/
static NuError
BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
BNYExtractDirectory(BNYArchive* pBny, BNYEntry* pEntry, ExtMode extMode)
{
NuError err = kNuErrNone;
NulibState* pState;
enum { kBNYExtNormal, kBNYExtPipe, kBNYExtTest } extMode;
const char* actionStr = "HOSED";
FILE* outfp = nil;
Boolean eolConv;
pState = pBny->pState;
switch (NState_GetCommand(pState)) {
case kCommandExtract: extMode = kBNYExtNormal; break;
case kCommandExtractToPipe: extMode = kBNYExtPipe; break;
case kCommandTest: extMode = kBNYExtTest; break;
default:
err = kNuErrInternal;
ReportError(err, "unexpected command %d in BNYExtract",
NState_GetCommand(pState));
Assert(0);
goto bail;
}
/*eolConv = NState_GetModConvertAll(pState);*/
eolConv = false;
/*
* Binary II requires that all directories be listed explicitly.
* If we see one, create it.
*/
if (IsDir(pEntry)) {
const char* newName;
Boolean isDir;
const char* actionStr = "HOSED";
if (extMode == kBNYExtTest) {
actionStr = "skipping ";
@ -1193,9 +1169,51 @@ BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
}
}
if (!NState_GetSuppressOutput(pState)) {
if (!NState_GetSuppressOutput(pBny->pState)) {
printf("\rDONE %s %s (directory)\n", actionStr, pEntry->fileName);
}
bail:
return err;
}
/*
* Handle "extract", "extract to pipe", and "test".
*/
static NuError
BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
{
NuError err = kNuErrNone;
NulibState* pState;
ExtMode extMode;
const char* actionStr = "HOSED";
FILE* outfp = nil;
Boolean eolConv;
pState = pBny->pState;
switch (NState_GetCommand(pState)) {
case kCommandExtract: extMode = kBNYExtNormal; break;
case kCommandExtractToPipe: extMode = kBNYExtPipe; break;
case kCommandTest: extMode = kBNYExtTest; break;
default:
err = kNuErrInternal;
ReportError(err, "unexpected command %d in BNYExtract",
NState_GetCommand(pState));
Assert(0);
goto bail;
}
/*eolConv = NState_GetModConvertAll(pState);*/
eolConv = false; /* maybe someday */
/*
* Binary II requires that all directories be listed explicitly.
* If we see one, create it.
*/
if (IsDir(pEntry)) {
err = BNYExtractDirectory(pBny, pEntry, extMode);
goto bail;
}
@ -1216,6 +1234,17 @@ BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
*/
const char* newName;
Boolean isDir;
char* ext;
/* if we find .qq on a squeezed file, just stomp the copy in pEntry */
if (strlen(pEntry->fileName) > 3) {
ext = pEntry->fileName + strlen(pEntry->fileName) -3;
if (IsSqueezed(pEntry->blockBuf[0], pEntry->blockBuf[1]) &&
strcasecmp(ext, ".qq") == 0)
{
*ext = '\0';
}
}
newName = BNYNormalizePath(pBny, pEntry);
if (newName == nil)
@ -1239,6 +1268,9 @@ BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
} else if (err != kNuErrFileNotFound) {
ReportError(err, "stat failed on '%s'", newName);
goto bail;
} else {
Assert(err == kNuErrFileNotFound);
err = kNuErrNone;
}
/* open it, overwriting anything present */
@ -1271,7 +1303,7 @@ BNYExtract(BNYArchive* pBny, BNYEntry* pEntry, Boolean* pConsumedFlag)
* Extract the file. Send the output, perhaps with EOL conversion,
* to the output file.
*
* Thought for the day: assuming a file is Squeezed just based on
* Thought for the day: assuming a file is Squeezed based only on
* the magic number is bogus. If we get certain classes of failures,
* and this isn't a streaming archive, we should back up and just
* extract it as a plain file.
@ -1329,6 +1361,13 @@ BNYDoExtract(NulibState* pState)
gProgName);
return kNuErrSyntax;
}
if (NState_GetModComments(pState))
{
fprintf(stderr,
"%s: Binary II extraction doesn't support '-c'\n",
gProgName);
return kNuErrSyntax;
}
if (NState_GetCommand(pState) == kCommandExtractToPipe)
NState_SetSuppressOutput(pState, true);