am a100a2ef: am a2fc0f86: Merge "Test readx/writex (now renamed)." (9206c1c2) · Commits · e / os / android_system_core

adb/Android.mk

+5 −1

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ ADB_CLANG :=
		LIBADB_SRC_FILES := \
		adb.c \
		adb_auth.c \
		adb_io.cpp \
		adb_listeners.c \
		sockets.c \
		transport.c \
		@@ -69,6 +70,7 @@ endif
		include $(BUILD_HOST_STATIC_LIBRARY)

		LIBADB_TEST_SRCS := \
		adb_io_test.cpp \
		transport_test.cpp \

		include $(CLEAR_VARS)
		@@ -77,7 +79,7 @@ LOCAL_MODULE := adbd_test
		LOCAL_CFLAGS := -DADB_HOST=0 $(LIBADB_CFLAGS)
		LOCAL_SRC_FILES := $(LIBADB_TEST_SRCS)
		LOCAL_STATIC_LIBRARIES := libadbd
		LOCAL_SHARED_LIBRARIES := liblog
		LOCAL_SHARED_LIBRARIES := liblog libcutils libutils
		include $(BUILD_NATIVE_TEST)

		include $(CLEAR_VARS)
		@@ -85,10 +87,12 @@ LOCAL_CLANG := $(ADB_CLANG)
		LOCAL_MODULE := adb_test
		LOCAL_CFLAGS := -DADB_HOST=1 $(LIBADB_CFLAGS)
		LOCAL_SRC_FILES := $(LIBADB_TEST_SRCS) services.c
		LOCAL_SHARED_LIBRARIES := liblog
		LOCAL_STATIC_LIBRARIES := \
		libadb \
		libcrypto_static \
		libcutils \
		libutils \

		ifeq ($(HOST_OS),linux)
		LOCAL_LDLIBS += -lrt -ldl -lpthread

adb/adb.c

+7 −6

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@
		#include "sysdeps.h"
		#include "adb.h"
		#include "adb_auth.h"
		#include "adb_io.h"
		#include "adb_listeners.h"
		#include "transport.h"

		@@ -263,8 +264,8 @@ static void send_msg_with_header(int fd, const char* msg, size_t msglen) {
		if (msglen > 0xffff)
		msglen = 0xffff;
		snprintf(header, sizeof(header), "%04x", (unsigned)msglen);
		writex(fd, header, 4);
		writex(fd, msg, msglen);
		WriteFdExactly(fd, header, 4);
		WriteFdExactly(fd, msg, msglen);
		}
		#endif

		@@ -274,8 +275,8 @@ static void send_msg_with_okay(int fd, const char* msg, size_t msglen) {
		if (msglen > 0xffff)
		msglen = 0xffff;
		snprintf(header, sizeof(header), "OKAY%04x", (unsigned)msglen);
		writex(fd, header, 8);
		writex(fd, msg, msglen);
		WriteFdExactly(fd, header, 8);
		WriteFdExactly(fd, msg, msglen);
		}
		#endif // ADB_HOST

		@@ -790,9 +791,9 @@ int handle_forward_request(const char* service, transport_type ttype, char* seri
		if(r == 0) {
		#if ADB_HOST
		/* On the host: 1st OKAY is connect, 2nd OKAY is status */
		writex(reply_fd, "OKAY", 4);
		WriteFdExactly(reply_fd, "OKAY", 4);
		#endif
		writex(reply_fd, "OKAY", 4);
		WriteFdExactly(reply_fd, "OKAY", 4);
		return 1;
		}

adb/adb_client.c

+10 −10

Original line number	Diff line number	Diff line
		@@ -27,7 +27,7 @@

		#define TRACE_TAG TRACE_ADB
		#include "adb_client.h"
		#include "transport.h"
		#include "adb_io.h"
		#include "zipfile/zipfile.h"

		static transport_type __adb_transport = kTransportAny;
		@@ -138,7 +138,7 @@ static int switch_socket_transport(int fd)
		len = strlen(service);
		snprintf(tmp, sizeof tmp, "%04x", len);

		if(writex(fd, tmp, 4) \|\| writex(fd, service, len)) {
		if(!WriteFdExactly(fd, tmp, 4) \|\| !WriteFdExactly(fd, service, len)) {
		strcpy(__adb_error, "write failure during connection");
		adb_close(fd);
		return -1;
		@@ -159,7 +159,7 @@ int adb_status(int fd)
		unsigned char buf[5];
		unsigned len;

		if(readx(fd, buf, 4)) {
		if(!ReadFdExactly(fd, buf, 4)) {
		strcpy(__adb_error, "protocol fault (no status)");
		return -1;
		}
		@@ -175,14 +175,14 @@ int adb_status(int fd)
		return -1;
		}

		if(readx(fd, buf, 4)) {
		if(!ReadFdExactly(fd, buf, 4)) {
		strcpy(__adb_error, "protocol fault (status len)");
		return -1;
		}
		buf[4] = 0;
		len = strtoul((char*)buf, 0, 16);
		if(len > 255) len = 255;
		if(readx(fd, __adb_error, len)) {
		if(!ReadFdExactly(fd, __adb_error, len)) {
		strcpy(__adb_error, "protocol fault (status read)");
		return -1;
		}
		@@ -218,7 +218,7 @@ int _adb_connect(const char *service)
		return -1;
		}

		if(writex(fd, tmp, 4) \|\| writex(fd, service, len)) {
		if(!WriteFdExactly(fd, tmp, 4) \|\| !WriteFdExactly(fd, service, len)) {
		strcpy(__adb_error, "write failure during connection");
		adb_close(fd);
		return -1;
		@@ -263,12 +263,12 @@ int adb_connect(const char *service)

		// if we have a file descriptor, then parse version result
		if(fd >= 0) {
		if(readx(fd, buf, 4)) goto error;
		if(!ReadFdExactly(fd, buf, 4)) goto error;

		buf[4] = 0;
		n = strtoul(buf, 0, 16);
		if(n > sizeof(buf)) goto error;
		if(readx(fd, buf, n)) goto error;
		if(!ReadFdExactly(fd, buf, n)) goto error;
		adb_close(fd);

		if (sscanf(buf, "%04x", &version) != 1) goto error;
		@@ -338,7 +338,7 @@ char adb_query(const char service)
		return 0;
		}

		if(readx(fd, buf, 4)) goto oops;
		if(!ReadFdExactly(fd, buf, 4)) goto oops;

		buf[4] = 0;
		n = strtoul(buf, 0, 16);
		@@ -350,7 +350,7 @@ char adb_query(const char service)
		tmp = malloc(n + 1);
		if(tmp == 0) goto oops;

		if(readx(fd, tmp, n) == 0) {
		if(!ReadFdExactly(fd, tmp, n) == 0) {
		tmp[n] = 0;
		adb_close(fd);
		return tmp;

adb/adb_io.cpp

0 → 100644

+93 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#define TRACE_TAG TRACE_RWX

		#include "sysdeps.h"
		#include "adb_io.h"

		#include <unistd.h>

		#include "adb_trace.h"
		#include "transport.h"

		bool ReadFdExactly(int fd, void* buf, size_t len) {
		char* p = reinterpret_cast<char*>(buf);

		#if ADB_TRACE
		size_t len0 = len;
		#endif

		D("readx: fd=%d wanted=%zu\n", fd, len);
		while (len > 0) {
		int r = TEMP_FAILURE_RETRY(adb_read(fd, p, len));
		if (r > 0) {
		len -= r;
		p += r;
		} else if (r == -1) {
		D("readx: fd=%d error %d: %s\n", fd, errno, strerror(errno));
		return false;
		} else {
		D("readx: fd=%d disconnected\n", fd);
		errno = 0;
		return false;
		}
		}

		#if ADB_TRACE
		D("readx: fd=%d wanted=%zu got=%zu\n", fd, len0, len0 - len);
		if (ADB_TRACING) {
		dump_hex(reinterpret_cast<const unsigned char*>(buf), len0);
		}
		#endif

		return true;
		}

		bool WriteFdExactly(int fd, const void* buf, size_t len) {
		const char* p = reinterpret_cast<const char*>(buf);
		int r;

		#if ADB_TRACE
		D("writex: fd=%d len=%d: ", fd, (int)len);
		if (ADB_TRACING) {
		dump_hex(reinterpret_cast<const unsigned char*>(buf), len);
		}
		#endif

		while (len > 0) {
		r = TEMP_FAILURE_RETRY(adb_write(fd, p, len));
		if (r == -1) {
		D("writex: fd=%d error %d: %s\n", fd, errno, strerror(errno));
		if (errno == EAGAIN) {
		adb_sleep_ms(1); // just yield some cpu time
		continue;
		} else if (errno == EPIPE) {
		D("writex: fd=%d disconnected\n", fd);
		errno = 0;
		return false;
		}
		} else {
		len -= r;
		p += r;
		}
		}
		return true;
		}

		bool WriteStringFully(int fd, const char* str) {
		return WriteFdExactly(fd, str, strlen(str));
		}

adb/adb_io.h

0 → 100644

+53 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#ifndef ADB_IO_H
		#define ADB_IO_H

		#include <stdbool.h>
		#include <sys/types.h>

		#ifdef __cplusplus
		extern "C" {
		#endif

		/*
		* Reads exactly len bytes from fd into buf.
		*
		* Returns false if there is an error or if EOF was reached before len bytes
		* were read. If EOF was found, errno will be set to 0.
		*
		* If this function fails, the contents of buf are undefined.
		*/
		bool ReadFdExactly(int fd, void *buf, size_t len);

		/*
		* Writes exactly len bytes from buf to fd.
		*
		* Returns false if there is an error or if the fd was closed before the write
		* completed. If the other end of the fd (such as in a socket, pipe, or fifo),
		* is closed, errno will be set to 0.
		*/
		bool WriteFdExactly(int fd, const void *buf, size_t len);

		/* Same as WriteFdExactly, but with an implicit len = strlen(buf). */
		bool WriteStringFully(int fd, const char* str);

		#ifdef __cplusplus
		}
		#endif

		#endif /* ADB_IO_H */