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Removed directory and symlink special cases from

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GuessMimeType(entry_ref*) and placed them in
Database::GuessMimeType(entry_ref*)


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1329 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Tyler Dauwalder 2002-10-01 07:34:15 +00:00
parent 86c6e9c1c1
commit a551958795
1 changed files with 31 additions and 51 deletions
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82
src/kits/storage/mime/SnifferRules.cpp
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@ -129,9 +129,8 @@ SnifferRules::~SnifferRules()
/*! \brief Guesses a MIME type for the supplied entry_ref.
Only the data in the given entry is considered, not the filename or
its extension.
Please see GuessMimeType(BPositionIO*, BString*) for more details.
its extension. Please see GuessMimeType(BPositionIO*, BString*) for
more details.
\param ref The entry to sniff
\param type Pointer to a pre-allocated BString which is set to the
@ -145,57 +144,38 @@ status_t
SnifferRules::GuessMimeType(const entry_ref *ref, BString *type)
{
status_t err = ref && type ? B_OK : B_BAD_VALUE;
ssize_t bytes = 0;
char *buffer = NULL;
// See if we have a directory, a symlink, or a vanilla file
BNode node;
struct stat statData;
if (!err)
err = node.SetTo(ref);
if (!err)
err = node.GetStat(&statData);
BFile file;
// First find out the max number of bytes we need to read
// from the file to fully accomodate all of our currently
// installed sniffer rules
if (!err) {
if (S_ISDIR(statData.st_mode)) {
// Directory
type->SetTo(kDirectoryType);
} else if (S_ISLNK(statData.st_mode)) {
// Symlink
type->SetTo(kSymlinkType);
} else if (S_ISREG(statData.st_mode)) {
// Regular file
BFile file;
// First find out the max number of bytes we need to read
// from the file to fully accomodate all of our currently
// installed sniffer rules
if (!err) {
bytes = MaxBytesNeeded();
if (bytes < 0)
err = bytes;
}
// Next read that many bytes (or fewer, if the file isn't
// that long) into a buffer
if (!err) {
buffer = new(nothrow) char[bytes];
if (!buffer)
err = B_NO_MEMORY;
}
if (!err)
err = file.SetTo(ref, B_READ_ONLY);
if (!err) {
bytes = file.Read(buffer, bytes);
if (bytes < 0)
err = bytes;
}
// Now sniff the buffer
if (!err) {
BMemoryIO data(buffer, bytes);
err = GuessMimeType(&data, type);
}
} else {
// ?????
err = B_FILE_ERROR;
}
bytes = MaxBytesNeeded();
if (bytes < 0)
err = bytes;
}
// Next read that many bytes (or fewer, if the file isn't
// that long) into a buffer
if (!err) {
buffer = new(nothrow) char[bytes];
if (!buffer)
err = B_NO_MEMORY;
}
if (!err)
err = file.SetTo(ref, B_READ_ONLY);
if (!err) {
bytes = file.Read(buffer, bytes);
if (bytes < 0)
err = bytes;
}
// Now sniff the buffer
if (!err) {
BMemoryIO data(buffer, bytes);
err = GuessMimeType(&data, type);
}
return err;