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ea453d4336
If we have a QByteArray (ba) and must provide it to a BIO* expecting OpenSSL function, the following construct provides it: BioByteArray(ba).ro() directly providing the QByteArray buffer as BIO It also supports mixed writes: BIO_write(bba, buf, size) bba += QByteArray
111 lines
1.8 KiB
C++
111 lines
1.8 KiB
C++
/* vi: set sw=4 ts=4:
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*
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* Copyright (C) 2019 Christian Hohnstaedt.
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*
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* All rights reserved.
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*/
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#ifndef __X_FILE_H
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#define __X_FILE_H
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#include <QFile>
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#include <QDebug>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "exception.h"
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#include <openssl/bio.h>
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class XFile : public QFile
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{
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private:
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FILE *filp;
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BIO *b;
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public:
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bool open(OpenMode flags)
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{
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bool o = QFile::open(flags | Unbuffered);
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if (error()) {
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throw errorEx(tr("Error opening file: '%1': %2")
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.arg(fileName()).arg(strerror(errno)));
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}
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return o;
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}
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XFile(const QString &name) : QFile(name), filp(NULL), b(NULL)
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{
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}
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BIO *bio()
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{
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if (!b)
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b = BIO_new_fp(fp(), BIO_NOCLOSE);
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return b;
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}
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FILE *fp(const char *mode = NULL)
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{
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if (!filp) {
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if (!mode)
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mode = openMode() & WriteOnly ?
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"ab" : "rb";
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filp = fdopen(dup(handle()), mode);
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check_oom(filp);
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}
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qDebug() << fileName() << "FILE ptr @" << ftell(filp);
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return filp;
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}
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qint64 writeData(const char *data, qint64 maxSize)
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{
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if (filp)
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fflush(filp);
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flush();
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seek(size());
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qDebug() << "WriteData to" << fileName() <<
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maxSize << "@" << size();
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qint64 r = QFile::writeData(data, maxSize);
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flush();
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if (filp)
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fseek(filp, 0, SEEK_END);
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return r;
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}
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void retry_read()
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{
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seek(0);
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if (filp)
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fseek(filp, 0, SEEK_SET);
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if (error()) {
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throw errorEx(
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tr("Error rewinding file: '%1': %2")
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.arg(fileName())
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.arg(strerror(errno)));
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}
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}
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bool open_key()
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{
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mode_t m = umask(077);
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bool o = open_write();
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umask(m);
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return o;
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}
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bool open_write()
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{
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return open(ReadWrite | Truncate);
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}
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bool open_read()
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{
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return open(ReadOnly);
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}
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~XFile() {
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if (filp)
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fclose(filp);
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if (b)
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BIO_free(b);
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}
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};
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#endif
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