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37df3d5f59
Having the LGPL on the common GnuPG code helps to share code between GnuPG and related projects (like GPGME and Libassuan). This is good for interoperability and to reduces bugs. * common/asshelp.c, common/asshelp.h, common/asshelp2.c, common/b64dec.c * common/b64enc.c, common/convert.c, common/dns-cert.c * common/dns-cert.h common/exechelp-posix.c, common/exechelp-w32.c * common/exechelp-w32ce.c, common/exechelp.h, common/get-passphrase.c * common/get-passphrase.h, common/gettime.c, common/gpgrlhelp.c * common/helpfile.c, common/homedir.c, common/http.c, common/http.h * common/i18n.c, common/init.c, common/init.h, common/iobuf.c * common/iobuf.h, common/localename.c, common/membuf.c, common/membuf.h * common/miscellaneous.c, common/openpgp-oid.c, common/openpgpdefs.h * common/percent.c, common/pka.c, common/pka.h, common/session-env.c * common/session-env.h, common/sexp-parse.h, common/sexputil.c * common/signal.c, common/srv.c, common/srv.h, common/ssh-utils.c * common/ssh-utils.h, common/sysutils.c, common/sysutils.h * common/tlv.c, common/tlv.h, common/ttyio.c, common/ttyio.h * common/userids.c, common/userids.h, common/xasprintf.c: Change license to LGPLv3+/GPLv2+/
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* membuf.h - A simple implementation of a dynamic buffer
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* Copyright (C) 2001, 2003 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of either
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*
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* - the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* or
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*
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* - the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* or both in parallel, as here.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GNUPG_COMMON_MEMBUF_H
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#define GNUPG_COMMON_MEMBUF_H
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/* The definition of the structure is private, we only need it here,
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so it can be allocated on the stack. */
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struct private_membuf_s
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{
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size_t len;
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size_t size;
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char *buf;
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int out_of_core;
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};
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typedef struct private_membuf_s membuf_t;
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/* Return the current length of the membuf. */
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#define get_membuf_len(a) ((a)->len)
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#define is_membuf_ready(a) ((a)->buf || (a)->out_of_core)
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#define MEMBUF_ZERO { 0, 0, NULL, 0}
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void init_membuf (membuf_t *mb, int initiallen);
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void init_membuf_secure (membuf_t *mb, int initiallen);
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void clear_membuf (membuf_t *mb, size_t amount);
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void put_membuf (membuf_t *mb, const void *buf, size_t len);
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void put_membuf_str (membuf_t *mb, const char *string);
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void *get_membuf (membuf_t *mb, size_t *len);
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const void *peek_membuf (membuf_t *mb, size_t *len);
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#endif /*GNUPG_COMMON_MEMBUF_H*/
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