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Read 20 512-byte blocks at a time (like GNU tar).

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This commit is contained in:
Matt Kraai 2001-07-10 15:05:39 +00:00
parent 654944fc36
commit 5710f9f690
2 changed files with 6 additions and 6 deletions
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6
archival/tar.c
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@ -330,7 +330,7 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
size_t writeSize; size_t writeSize;
size_t readSize; size_t readSize;
size_t actualWriteSz; size_t actualWriteSz;
char buffer[BUFSIZ]; char buffer[20 * TAR_BLOCK_SIZE];
size_t size = header->size; size_t size = header->size;
int outFd=fileno(stdout); int outFd=fileno(stdout);
@ -354,9 +354,9 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
if ( size > sizeof(buffer) ) if ( size > sizeof(buffer) )
writeSize = readSize = sizeof(buffer); writeSize = readSize = sizeof(buffer);
else { else {
int mod = size % 512; int mod = size % TAR_BLOCK_SIZE;
if ( mod != 0 ) if ( mod != 0 )
readSize = size + (512 - mod); readSize = size + (TAR_BLOCK_SIZE - mod);
else else
readSize = size; readSize = size;
writeSize = size; writeSize = size;

6
tar.c
View File

@ -330,7 +330,7 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
size_t writeSize; size_t writeSize;
size_t readSize; size_t readSize;
size_t actualWriteSz; size_t actualWriteSz;
char buffer[BUFSIZ]; char buffer[20 * TAR_BLOCK_SIZE];
size_t size = header->size; size_t size = header->size;
int outFd=fileno(stdout); int outFd=fileno(stdout);
@ -354,9 +354,9 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
if ( size > sizeof(buffer) ) if ( size > sizeof(buffer) )
writeSize = readSize = sizeof(buffer); writeSize = readSize = sizeof(buffer);
else { else {
int mod = size % 512; int mod = size % TAR_BLOCK_SIZE;
if ( mod != 0 ) if ( mod != 0 )
readSize = size + (512 - mod); readSize = size + (TAR_BLOCK_SIZE - mod);
else else
readSize = size; readSize = size;
writeSize = size; writeSize = size;