adb: make stdin/stdout/stderr redirection errors fatal
Make these fatal errors:
- Win32 GetTempPathW() failures.
- Errors opening /dev/null (and don't use LOG(FATAL) for this error
since that will do a crash-dump on Windows which isn't appropriate for a
transient runtime error).
- Errors with dup2.
- Errors opening adb.log.
Change-Id: Ided76a5436d8c6f059d8f6799c49ba04c87181ae
Signed-off-by: Spencer Low <CompareAndSwap@gmail.com>
diff --git a/adb/client/main.cpp b/adb/client/main.cpp
index 73acbb0..7469744 100644
--- a/adb/client/main.cpp
+++ b/adb/client/main.cpp
@@ -88,13 +88,8 @@
DWORD nchars = GetTempPathW(arraysize(temp_path), temp_path);
if ((nchars >= arraysize(temp_path)) || (nchars == 0)) {
// If string truncation or some other error.
- // TODO(danalbert): Log the error message from
- // FormatMessage(GetLastError()). Pure Windows APIs only touch
- // GetLastError(), C Runtime APIs touch errno, so maybe there should be
- // WPLOG or PLOGW (which would read GetLastError() instead of errno),
- // in addition to PLOG, or maybe better to just ignore it and add a
- // simplified version of FormatMessage() for use in log messages.
- LOG(ERROR) << "Error creating log file";
+ fatal("cannot retrieve temporary file path: %s\n",
+ SystemErrorCodeToString(GetLastError()).c_str());
}
return narrow(temp_path) + log_name;
@@ -109,19 +104,28 @@
static void close_stdin() {
int fd = unix_open(kNullFileName, O_RDONLY);
- CHECK_NE(fd, -1);
- dup2(fd, STDIN_FILENO);
+ if (fd == -1) {
+ fatal("cannot open '%s': %s", kNullFileName, strerror(errno));
+ }
+ if (dup2(fd, STDIN_FILENO) == -1) {
+ fatal("cannot redirect stdin: %s", strerror(errno));
+ }
unix_close(fd);
}
static void setup_daemon_logging(void) {
- int fd = unix_open(GetLogFilePath().c_str(), O_WRONLY | O_CREAT | O_APPEND,
+ const std::string log_file_path(GetLogFilePath());
+ int fd = unix_open(log_file_path.c_str(), O_WRONLY | O_CREAT | O_APPEND,
0640);
if (fd == -1) {
- fd = unix_open(kNullFileName, O_WRONLY);
+ fatal("cannot open '%s': %s", log_file_path.c_str(), strerror(errno));
}
- dup2(fd, STDOUT_FILENO);
- dup2(fd, STDERR_FILENO);
+ if (dup2(fd, STDOUT_FILENO) == -1) {
+ fatal("cannot redirect stdout: %s", strerror(errno));
+ }
+ if (dup2(fd, STDERR_FILENO) == -1) {
+ fatal("cannot redirect stderr: %s", strerror(errno));
+ }
unix_close(fd);
#ifdef _WIN32
