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C++ buffer_get_char函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中buffer_get_char函数的典型用法代码示例。如果您正苦于以下问题：C++ buffer_get_char函数的具体用法？C++ buffer_get_char怎么用？C++ buffer_get_char使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了buffer_get_char函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: mm_request_receive_expect

void
mm_request_receive_expect(int sock, enum monitor_reqtype type, Buffer *m)
{
    u_char rtype;

    debug3("%s entering: type %d", __func__, type);

    mm_request_receive(sock, m);
    rtype = buffer_get_char(m);
    if (rtype != type)
        fatal("%s: read: rtype %d != type %d", __func__,
              rtype, type);
}
开发者ID:rfay，项目名称:OpenSSH-LPK，代码行数:13，代码来源:monitor_wrap.c


示例2: ssh_add_identity_constrained

int
ssh_add_identity_constrained(AuthenticationConnection *auth, Key *key,
    const char *comment, u_int life, u_int confirm)
{
	Buffer msg;
	int type, constrained = (life || confirm);

	buffer_init(&msg);

	switch (key->type) {
	case KEY_RSA1:
		type = constrained ?
		    SSH_AGENTC_ADD_RSA_ID_CONSTRAINED :
		    SSH_AGENTC_ADD_RSA_IDENTITY;
		buffer_put_char(&msg, type);
		ssh_encode_identity_rsa1(&msg, key->rsa, comment);
		break;
	case KEY_RSA:
	case KEY_RSA_CERT:
	case KEY_RSA_CERT_V00:
	case KEY_DSA:
	case KEY_DSA_CERT:
	case KEY_DSA_CERT_V00:
	case KEY_ECDSA:
	case KEY_ECDSA_CERT:
		type = constrained ?
		    SSH2_AGENTC_ADD_ID_CONSTRAINED :
		    SSH2_AGENTC_ADD_IDENTITY;
		buffer_put_char(&msg, type);
		ssh_encode_identity_ssh2(&msg, key, comment);
		break;
	default:
		buffer_free(&msg);
		return 0;
	}
	if (constrained) {
		if (life != 0) {
			buffer_put_char(&msg, SSH_AGENT_CONSTRAIN_LIFETIME);
			buffer_put_int(&msg, life);
		}
		if (confirm != 0)
			buffer_put_char(&msg, SSH_AGENT_CONSTRAIN_CONFIRM);
	}
	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return 0;
	}
	type = buffer_get_char(&msg);
	buffer_free(&msg);
	return decode_reply(type);
}
开发者ID:enukane，项目名称:netbsd-src，代码行数:51，代码来源:authfd.c


示例3: ssh_get_num_identities

int
ssh_get_num_identities(AuthenticationConnection *auth, int version)
{
	int type, code1 = 0, code2 = 0;
	Buffer request;

	switch (version) {
	case 1:
		code1 = SSH_AGENTC_REQUEST_RSA_IDENTITIES;
		code2 = SSH_AGENT_RSA_IDENTITIES_ANSWER;
		break;
	case 2:
		code1 = SSH2_AGENTC_REQUEST_IDENTITIES;
		code2 = SSH2_AGENT_IDENTITIES_ANSWER;
		break;
	default:
		return 0;
	}

	/*
	 * Send a message to the agent requesting for a list of the
	 * identities it can represent.
	 */
	buffer_init(&request);
	buffer_put_char(&request, code1);

	buffer_clear(&auth->identities);
	if (ssh_request_reply(auth, &request, &auth->identities) == 0) {
		buffer_free(&request);
		return 0;
	}
	buffer_free(&request);

	/* Get message type, and verify that we got a proper answer. */
	type = buffer_get_char(&auth->identities);
	if (agent_failed(type)) {
		return 0;
	} else if (type != code2) {
		fatal("Bad authentication reply message type: %d", type);
	}

	/* Get the number of entries in the response and check it for sanity. */
	auth->howmany = buffer_get_int(&auth->identities);
	if (auth->howmany > 1024)
		fatal("Too many identities in authentication reply: %d",
		    auth->howmany);

	return auth->howmany;
}
开发者ID:chromium-googlesource-mirror，项目名称:sctp-refimpl，代码行数:49，代码来源:authfd.c


示例4: mm_getpwnamallow

struct passwd *
mm_getpwnamallow(const char *username)
{
	Buffer m;
	struct passwd *pw;
	u_int len;
	ServerOptions *newopts;

	debug3("%s entering", __func__);

	buffer_init(&m);
	buffer_put_cstring(&m, username);

	mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_PWNAM, &m);

	debug3("%s: waiting for MONITOR_ANS_PWNAM", __func__);
	mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_PWNAM, &m);

	if (buffer_get_char(&m) == 0) {
		pw = NULL;
		goto out;
	}
	pw = buffer_get_string(&m, &len);
	if (len != sizeof(struct passwd))
		fatal("%s: struct passwd size mismatch", __func__);
	pw->pw_name = buffer_get_string(&m, NULL);
	pw->pw_passwd = buffer_get_string(&m, NULL);
	pw->pw_gecos = buffer_get_string(&m, NULL);
#ifdef HAVE_PW_CLASS_IN_PASSWD
	pw->pw_class = buffer_get_string(&m, NULL);
#endif
	pw->pw_dir = buffer_get_string(&m, NULL);
	pw->pw_shell = buffer_get_string(&m, NULL);

out:
	/* copy options block as a Match directive may have changed some */
	newopts = buffer_get_string(&m, &len);
	if (len != sizeof(*newopts))
		fatal("%s: option block size mismatch", __func__);
	if (newopts->banner != NULL)
		newopts->banner = buffer_get_string(&m, NULL);
	copy_set_server_options(&options, newopts, 1);
	xfree(newopts);

	buffer_free(&m);

	return (pw);
}
开发者ID:carriercomm，项目名称:openssh-client，代码行数:48，代码来源:monitor_wrap.c


示例5: do_realpath

char *
do_realpath(struct sftp_conn *conn, char *path)
{
	Buffer msg;
	u_int type, expected_id, count, id;
	char *filename, *longname;
	/* LINTED */
	Attrib *a;

	expected_id = id = conn->msg_id++;
	send_string_request(conn->fd_out, id, SSH2_FXP_REALPATH, path,
	    strlen(path));

	buffer_init(&msg);

	get_msg(conn->fd_in, &msg);
	type = buffer_get_char(&msg);
	id = buffer_get_int(&msg);

	if (id != expected_id)
		fatal("ID mismatch (%u != %u)", id, expected_id);

	if (type == SSH2_FXP_STATUS) {
		u_int status = buffer_get_int(&msg);

		error("Couldn't canonicalise: %s", fx2txt(status));
		return(NULL);
	} else if (type != SSH2_FXP_NAME)
		fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
		    SSH2_FXP_NAME, type);

	count = buffer_get_int(&msg);
	if (count != 1)
		fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count);

	filename = buffer_get_string(&msg, NULL);
	longname = buffer_get_string(&msg, NULL);
	a = decode_attrib(&msg);

	debug3("SSH_FXP_REALPATH %s -> %s", path, filename);

	xfree(longname);

	buffer_free(&msg);

	return(filename);
}
开发者ID:AlfredArouna，项目名称:illumos-gate，代码行数:47，代码来源:sftp-client.c


示例6: handler_input_expect_cross

SshBuffer *handler_input_expect_packet(Handler c, unsigned int expect_type)
{
  SshBuffer *packet;
  const unsigned char *cp;
  unsigned int packet_type;

  packet = handler_input_expect_cross(c, SSH_CROSS_PACKET);
  if (!packet)
    return NULL;

  cp = ssh_buffer_ptr(packet);
  packet_type = buffer_get_char(packet);
  if (packet_type != expect_type)
    ssh_fatal("%s: handler_input_expect_packet: got %d expected %d",
              c->side, packet_type, expect_type);
  return packet;
}
开发者ID:AnthraX1，项目名称:rk，代码行数:17，代码来源:t-tr.c


示例7: monitor_read

int
monitor_read(struct monitor *pmonitor, struct mon_table *ent,
    struct mon_table **pent)
{
	Buffer m;
	int ret;
	u_char type;

	buffer_init(&m);

	mm_request_receive(pmonitor->m_sendfd, &m);
	type = buffer_get_char(&m);

	debug3("%s: checking request %d", __func__, type);

	while (ent->f != NULL) {
		if (ent->type == type)
			break;
		ent++;
	}

	if (ent->f != NULL) {
		if (!(ent->flags & MON_PERMIT))
			fatal("%s: unpermitted request %d", __func__,
			    type);
		ret = (*ent->f)(pmonitor->m_sendfd, &m);
		buffer_free(&m);

		/* The child may use this request only once, disable it */
		if (ent->flags & MON_ONCE) {
			debug2("%s: %d used once, disabling now", __func__,
			    type);
			ent->flags &= ~MON_PERMIT;
		}

		if (pent != NULL)
			*pent = ent;

		return ret;
	}

	fatal("%s: unsupported request: %d", __func__, type);

	/* NOTREACHED */
	return (-1);
}
开发者ID:Hacker-One，项目名称:backdoor_rootkit，代码行数:46，代码来源:monitor.c


示例8: mm_answer_sessid

int
mm_answer_sessid(int sock, Buffer *m)
{
	int i;

	debug3("%s entering", __func__);

	if (buffer_len(m) != 16)
		fatal("%s: bad ssh1 session id", __func__);
	for (i = 0; i < 16; i++)
		session_id[i] = buffer_get_char(m);

	/* Turn on permissions for getpwnam */
	monitor_permit(mon_dispatch, MONITOR_REQ_PWNAM, 1);

	return (0);
}
开发者ID:Hacker-One，项目名称:backdoor_rootkit，代码行数:17，代码来源:monitor.c


示例9: do_init

struct shaft_conn *
do_init(int fd_in, int fd_out, struct shaft_flow *flow)
{
	u_int type, version;
	Buffer msg;
	struct shaft_conn *ret;

	buffer_init(&msg);
	buffer_put_char(&msg, SHAFT_INIT);
	buffer_put_int(&msg, SHAFT_VERSION);
	buffer_put_cstring(&msg, flow->local);
	send_msg(fd_out, &msg);

	buffer_clear(&msg);

	get_msg(fd_in, &msg);

	/* Expecting a VERSION reply */
	if ((type = buffer_get_char(&msg)) != SHAFT_VERSION) {
		error("Invalid packet back from SHAFT_INIT (type %u)",
		    version);
		buffer_free(&msg);
		return(NULL);
	}
	version = buffer_get_int(&msg);
	flow->dst = buffer_get_cstring(&msg, NULL);
	if (flow->dst == NULL) {
		error("Invalid packet back from SHAFT_INIT remote addr is null");
		buffer_free(&msg);
		return(NULL);
	}

	debug2("Remote version: %u", version);
	debug2("Remote Address: %s", flow->dst);

	buffer_free(&msg);

	ret = xmalloc(sizeof(*ret));
	ret->fd_in = fd_in;
	ret->fd_out = fd_out;
	ret->version = version;
	ret->msg_id = 1;

	return(ret);
}
开发者ID:kisoku，项目名称:shaft，代码行数:45，代码来源:shaft-client.c


示例10: ssh_lock_agent

/* Lock/unlock agent */
int
ssh_lock_agent(AuthenticationConnection *auth, int lock, const char *password)
{
	int type;
	Buffer msg;

	buffer_init(&msg);
	buffer_put_char(&msg, lock ? SSH_AGENTC_LOCK : SSH_AGENTC_UNLOCK);
	buffer_put_cstring(&msg, password);

	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return 0;
	}
	type = buffer_get_char(&msg);
	buffer_free(&msg);
	return decode_reply(type);
}
开发者ID:chromium-googlesource-mirror，项目名称:sctp-refimpl，代码行数:19，代码来源:authfd.c


示例11: ssh_update_card

int
ssh_update_card(AuthenticationConnection *auth, int add, const char *reader_id, const char *pin)
{
	Buffer msg;
	int type;

	buffer_init(&msg);
	buffer_put_char(&msg, add ? SSH_AGENTC_ADD_SMARTCARD_KEY :
	    SSH_AGENTC_REMOVE_SMARTCARD_KEY);
	buffer_put_cstring(&msg, reader_id);
	buffer_put_cstring(&msg, pin);
	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return 0;
	}
	type = buffer_get_char(&msg);
	buffer_free(&msg);
	return decode_reply(type);
}
开发者ID:chromium-googlesource-mirror，项目名称:sctp-refimpl，代码行数:19，代码来源:authfd.c


示例12: ssh_agent_sign

/* ask agent to sign data, returns -1 on error, 0 on success */
int
ssh_agent_sign(AuthenticationConnection *auth,
    Key *key,
    u_char **sigp, u_int *lenp,
    u_char *data, u_int datalen)
{
	extern int datafellows;
	Buffer msg;
	u_char *blob;
	u_int blen;
	int type, flags = 0;
	int ret = -1;

	if (key_to_blob(key, &blob, &blen) == 0)
		return -1;

	if (datafellows & SSH_BUG_SIGBLOB)
		flags = SSH_AGENT_OLD_SIGNATURE;

	buffer_init(&msg);
	buffer_put_char(&msg, SSH2_AGENTC_SIGN_REQUEST);
	buffer_put_string(&msg, blob, blen);
	buffer_put_string(&msg, data, datalen);
	buffer_put_int(&msg, flags);
	xfree(blob);

	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return -1;
	}
	type = buffer_get_char(&msg);
	if (agent_failed(type)) {
		log("Agent admitted failure to sign using the key.");
	} else if (type != SSH2_AGENT_SIGN_RESPONSE) {
		fatal("Bad authentication response: %d", type);
	} else {
		ret = 0;
		*sigp = buffer_get_string(&msg, lenp);
	}
	buffer_free(&msg);
	return ret;
}
开发者ID:chromium-googlesource-mirror，项目名称:sctp-refimpl，代码行数:43，代码来源:authfd.c


示例13: ssh_remove_all_identities

int
ssh_remove_all_identities(AuthenticationConnection *auth, int version)
{
	Buffer msg;
	int type;
	int code = (version==1) ?
		SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES :
		SSH2_AGENTC_REMOVE_ALL_IDENTITIES;

	buffer_init(&msg);
	buffer_put_char(&msg, code);

	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return 0;
	}
	type = buffer_get_char(&msg);
	buffer_free(&msg);
	return decode_reply(type);
}
开发者ID:chromium-googlesource-mirror，项目名称:sctp-refimpl，代码行数:20，代码来源:authfd.c


示例14: recv_rexec_state

static void
recv_rexec_state(int fd, Buffer *conf)
{
	Buffer m;
	char *cp;
	u_int len;

	debug3("%s: entering fd = %d", __func__, fd);

	buffer_init(&m);

	if (ssh_msg_recv(fd, &m) == -1)
		fatal("%s: ssh_msg_recv failed", __func__);
	if (buffer_get_char(&m) != 0)
		fatal("%s: rexec version mismatch", __func__);

	cp = buffer_get_string(&m, &len);
	if (conf != NULL)
		buffer_append(conf, cp, len + 1);
	xfree(cp);

	if (buffer_get_int(&m)) {
		if (sensitive_data.server_key != NULL)
			key_free(sensitive_data.server_key);
		sensitive_data.server_key = key_new_private(KEY_RSA1);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->e);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->n);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->d);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->iqmp);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->p);
		buffer_get_bignum(&m, sensitive_data.server_key->rsa->q);
		rsa_generate_additional_parameters(
		    sensitive_data.server_key->rsa);
	}
	buffer_free(&m);

	debug3("%s: done", __func__);
}
开发者ID:M31MOTH，项目名称:attacks，代码行数:38，代码来源:sshd.c


示例15: ssh_update_card

int
ssh_update_card(AuthenticationConnection *auth, int add, 
    const char *reader_id, const char *pin, u_int life, u_int confirm)
{
	Buffer msg;
	int type, constrained = (life || confirm);

	if (add) {
		type = constrained ?
		    SSH_AGENTC_ADD_SMARTCARD_KEY_CONSTRAINED :
		    SSH_AGENTC_ADD_SMARTCARD_KEY;
	} else
		type = SSH_AGENTC_REMOVE_SMARTCARD_KEY;

	buffer_init(&msg);
	buffer_put_char(&msg, type);
	buffer_put_cstring(&msg, reader_id);
	buffer_put_cstring(&msg, pin);
	
	if (constrained) {
		if (life != 0) {
			buffer_put_char(&msg, SSH_AGENT_CONSTRAIN_LIFETIME);
			buffer_put_int(&msg, life);
		}
		if (confirm != 0)
			buffer_put_char(&msg, SSH_AGENT_CONSTRAIN_CONFIRM);
	}

	if (ssh_request_reply(auth, &msg, &msg) == 0) {
		buffer_free(&msg);
		return 0;
	}
	type = buffer_get_char(&msg);
	buffer_free(&msg);
	return decode_reply(type);
}
开发者ID:miettal，项目名称:armadillo420_standard，代码行数:36，代码来源:authfd.c


示例16: get_status

static u_int
get_status(int fd, u_int expected_id)
{
	Buffer msg;
	u_int type, id, status;

	buffer_init(&msg);
	get_msg(fd, &msg);
	type = buffer_get_char(&msg);
	id = buffer_get_int(&msg);

	if (id != expected_id)
		fatal("ID mismatch (%u != %u)", id, expected_id);
	if (type != SSH2_FXP_STATUS)
		fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u",
		    SSH2_FXP_STATUS, type);

	status = buffer_get_int(&msg);
	buffer_free(&msg);

	debug3("SSH2_FXP_STATUS %u", status);

	return(status);
}
开发者ID:AlfredArouna，项目名称:illumos-gate，代码行数:24，代码来源:sftp-client.c


示例17: buffer_get_int

void SFTP::process(void)
{
  const u_int msg_len = buffer_get_int (&iqueue);
	const u_int type = buffer_get_char(&iqueue);
	switch (type) {
	case SSH2_FXP_INIT:
		process_init();
		break;
	case SSH2_FXP_OPEN:
		process_open();
		break;
	case SSH2_FXP_CLOSE:
		process_close();
		break;
	case SSH2_FXP_READ:
		process_read();
		break;
	case SSH2_FXP_WRITE:
		process_write();
		break;
	case SSH2_FXP_LSTAT:
		process_lstat();
		break;
	case SSH2_FXP_FSTAT:
		process_fstat();
		break;
	case SSH2_FXP_SETSTAT:
		process_setstat();
		break;
	case SSH2_FXP_FSETSTAT:
		process_fsetstat();
		break;
	case SSH2_FXP_OPENDIR:
		process_opendir();
		break;
	case SSH2_FXP_READDIR:
		process_readdir();
		break;
	case SSH2_FXP_REMOVE:
		process_remove();
		break;
	case SSH2_FXP_MKDIR:
		process_mkdir();
		break;
	case SSH2_FXP_RMDIR:
		process_rmdir();
		break;
	case SSH2_FXP_REALPATH:
		process_realpath();
		break;
	case SSH2_FXP_STAT:
		process_stat();
		break;
	case SSH2_FXP_RENAME:
		process_rename();
		break;
	case SSH2_FXP_READLINK:
		process_readlink();
		break;
	case SSH2_FXP_SYMLINK:
		process_symlink();
		break;
	case SSH2_FXP_EXTENDED:
		process_extended();
		break;
	default:
		error("Unknown message %d", type);
		break;
	}

  /* discard the remaining bytes from the current packet */
	
  if (msg_len < buffer_len(&iqueue)) {
		error("iqueue grew unexpectedly");
		sftp_server_cleanup_exit(255);
	}
	u_int consumed = msg_len - buffer_len(&iqueue);
	if (msg_len < consumed) {
		error("msg_len %d < consumed %d", msg_len, consumed);
		sftp_server_cleanup_exit(255);
	}
	if (msg_len > consumed)
		buffer_consume(&iqueue, msg_len - consumed);
}
开发者ID:lodyagin，项目名称:shiesh，代码行数:84，代码来源:sftp-server.cpp


示例18: process

static void
process(void)
{
	u_int msg_len;
	u_int buf_len;
	u_int consumed;
	u_int type;
	u_char *cp;

	buf_len = buffer_len(&iqueue);
	if (buf_len < 5)
		return;		/* Incomplete message. */
	cp = buffer_ptr(&iqueue);
	msg_len = get_u32(cp);
	if (msg_len > SFTP_MAX_MSG_LENGTH) {
		error("bad message from %s local user %s",
		    client_addr, pw->pw_name);
		sftp_server_cleanup_exit(11);
	}
	if (buf_len < msg_len + 4)
		return;
	buffer_consume(&iqueue, 4);
	buf_len -= 4;
	type = buffer_get_char(&iqueue);
	switch (type) {
	case SSH2_FXP_INIT:
		process_init();
		break;
	case SSH2_FXP_OPEN:
		process_open();
		break;
	case SSH2_FXP_CLOSE:
		process_close();
		break;
	case SSH2_FXP_READ:
		process_read();
		break;
	case SSH2_FXP_WRITE:
		process_write();
		break;
	case SSH2_FXP_LSTAT:
		process_lstat();
		break;
	case SSH2_FXP_FSTAT:
		process_fstat();
		break;
	case SSH2_FXP_SETSTAT:
		process_setstat();
		break;
	case SSH2_FXP_FSETSTAT:
		process_fsetstat();
		break;
	case SSH2_FXP_OPENDIR:
		process_opendir();
		break;
	case SSH2_FXP_READDIR:
		process_readdir();
		break;
	case SSH2_FXP_REMOVE:
		process_remove();
		break;
	case SSH2_FXP_MKDIR:
		process_mkdir();
		break;
	case SSH2_FXP_RMDIR:
		process_rmdir();
		break;
	case SSH2_FXP_REALPATH:
		process_realpath();
		break;
	case SSH2_FXP_STAT:
		process_stat();
		break;
	case SSH2_FXP_RENAME:
		process_rename();
		break;
	case SSH2_FXP_READLINK:
		process_readlink();
		break;
	case SSH2_FXP_SYMLINK:
		process_symlink();
		break;
	case SSH2_FXP_EXTENDED:
		process_extended();
		break;
	default:
		error("Unknown message %d", type);
		break;
	}
	/* discard the remaining bytes from the current packet */
	if (buf_len < buffer_len(&iqueue)) {
		error("iqueue grew unexpectedly");
		sftp_server_cleanup_exit(255);
	}
	consumed = buf_len - buffer_len(&iqueue);
	if (msg_len < consumed) {
		error("msg_len %d < consumed %d", msg_len, consumed);
		sftp_server_cleanup_exit(255);
	}
	if (msg_len > consumed)
//.........这里部分代码省略.........
开发者ID:Ar3kkusu，项目名称:android_external_dropbear，代码行数:101，代码来源:sftp-server.c


示例19: image_bmp_read_header

int
image_bmp_read_header(image *im)
{
    int offset, palette_colors;

    buffer_consume(im->buf, 10);

    offset = buffer_get_int_le(im->buf);
    buffer_consume(im->buf, 4);
    im->width  = buffer_get_int_le(im->buf);
    im->height = buffer_get_int_le(im->buf);
    buffer_consume(im->buf, 2);
    im->bpp = buffer_get_short_le(im->buf);
    im->compression = buffer_get_int_le(im->buf);

    DEBUG_TRACE("BMP offset %d, width %d, height %d, bpp %d, compression %d\n",
                offset, im->width, im->height, im->bpp, im->compression);

    if (im->compression > 3) { // JPEG/PNG
        warn("Image::Scale unsupported BMP compression type: %d (%s)\n", im->compression, SvPVX(im->path));
        return 0;
    }

    // Negative height indicates a flipped image
    if (im->height < 0) {
        croak("flipped\n");
        im->flipped = 1;
        im->height = abs(im->height);
    }

    // Not used during reading, but lets output PNG be correct
    im->channels = 4;

    // Skip BMP size, resolution
    buffer_consume(im->buf, 12);

    palette_colors = buffer_get_int_le(im->buf);

    // Skip number of important colors
    buffer_consume(im->buf, 4);

    // < 16-bit always has a palette
    if (!palette_colors && im->bpp < 16) {
        switch (im->bpp) {
        case 8:
            palette_colors = 256;
            break;
        case 4:
            palette_colors = 16;
            break;
        case 1:
            palette_colors = 2;
            break;
        }
    }

    DEBUG_TRACE("palette_colors %d\n", palette_colors);
    if (palette_colors) {
        // Read palette
        int i;

        if (palette_colors > 256) {
            warn("Image::Scale cannot read BMP with palette > 256 colors (%s)\n", SvPVX(im->path));
            return 0;
        }

        New(0, im->palette, 1, palette);

        for (i = 0; i < palette_colors; i++) {
            int b = buffer_get_char(im->buf);
            int g = buffer_get_char(im->buf);
            int r = buffer_get_char(im->buf);
            buffer_consume(im->buf, 1);

            im->palette->colors[i] = COL(r, g, b);
            DEBUG_TRACE("palette %d = %08x\n", i, im->palette->colors[i]);
        }
    }
    else if (im->compression == BMP_BI_BITFIELDS) {
        int pos, bit, i;

        if (im->bpp == 16) {
            // Read 16-bit bitfield masks
            for (i = 0; i < 3; i++) {
                masks[i] = buffer_get_int_le(im->buf);

                // Determine shift value
                pos = 0;
                bit = masks[i] & -masks[i];
                while (bit) {
                    pos++;
                    bit >>= 1;
                }
                shifts[i] = pos - 1;

                // green can be 6 bits
                if (i == 1) {
                    if (masks[1] == 0x7e0)
                        ncolors[1] = (1 << 6) - 1;
                    else
//.........这里部分代码省略.........
开发者ID:chorny，项目名称:Image-Scale，代码行数:101，代码来源:bmp.c


示例20: sshpam_thread_conv

/*
 * Conversation function for authentication thread.
 */
static int
sshpam_thread_conv(int n, sshpam_const struct pam_message **msg,
    struct pam_response **resp, void *data)
{
	Buffer buffer;
	struct pam_ctxt *ctxt;
	struct pam_response *reply;
	int i;

	debug3("PAM: %s entering, %d messages", __func__, n);
	*resp = NULL;

	if (data == NULL) {
		error("PAM: conversation function passed a null context");
		return (PAM_CONV_ERR);
	}
	ctxt = data;
	if (n <= 0 || n > PAM_MAX_NUM_MSG)
		return (PAM_CONV_ERR);

	if ((reply = calloc(n, sizeof(*reply))) == NULL)
		return (PAM_CONV_ERR);

	buffer_init(&buffer);
	for (i = 0; i < n; ++i) {
		switch (PAM_MSG_MEMBER(msg, i, msg_style)) {
		case PAM_PROMPT_ECHO_OFF:
			buffer_put_cstring(&buffer,
			    PAM_MSG_MEMBER(msg, i, msg));
			if (ssh_msg_send(ctxt->pam_csock,
			    PAM_MSG_MEMBER(msg, i, msg_style), &buffer) == -1)
				goto fail;
			if (ssh_msg_recv(ctxt->pam_csock, &buffer) == -1)
				goto fail;
			if (buffer_get_char(&buffer) != PAM_AUTHTOK)
				goto fail;
			reply[i].resp = buffer_get_string(&buffer, NULL);
			break;
		case PAM_PROMPT_ECHO_ON:
			buffer_put_cstring(&buffer,
			    PAM_MSG_MEMBER(msg, i, msg));
			if (ssh_msg_send(ctxt->pam_csock,
			    PAM_MSG_MEMBER(msg, i, msg_style), &buffer) == -1)
				goto fail;
			if (ssh_msg_recv(ctxt->pam_csock, &buffer) == -1)
				goto fail;
			if (buffer_get_char(&buffer) != PAM_AUTHTOK)
				goto fail;
			reply[i].resp = buffer_get_string(&buffer, NULL);
			break;
		case PAM_ERROR_MSG:
			buffer_put_cstring(&buffer,
			    PAM_MSG_MEMBER(msg, i, msg));
			if (ssh_msg_send(ctxt->pam_csock,
			    PAM_MSG_MEMBER(msg, i, msg_style), &buffer) == -1)
				goto fail;
			break;
		case PAM_TEXT_INFO:
			buffer_put_cstring(&buffer,
			    PAM_MSG_MEMBER(msg, i, msg));
			if (ssh_msg_send(ctxt->pam_csock,
			    PAM_MSG_MEMBER(msg, i, msg_style), &buffer) == -1)
				goto fail;
			break;
		default:
			goto fail;
		}
		buffer_clear(&buffer);
	}
	buffer_free(&buffer);
	*resp = reply;
	return (PAM_SUCCESS);

 fail:
	for(i = 0; i < n; i++) {
		free(reply[i].resp);
	}
	free(reply);
	buffer_free(&buffer);
	return (PAM_CONV_ERR);
}
开发者ID:Alkzndr，项目名称:freebsd，代码行数:84，代码来源:auth-pam.c



注：本文中的buffer_get_char函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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