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    <p>As noted, "adb shell" is performing a linefeed (0x0a) to carriage-return + linefeed (0x0d 0x0a) conversion. This is being performed by the pseudo-tty line discipline. As there is no "stty" command available to the shell, there is no easy way to mess with the terminal settings.</p> <p>It's <em>possible</em> to do what you want with ddmlib. You'd need to write code that executed commands on the device, captured the output, and sent it over the wire. This is more or less what DDMS does for certain features. This may be more trouble than its worth.</p> <p>The <code>repair()</code> solution -- converting all CRLF to LF -- feels shaky but is actually reliable since the "corrupting" LF-to-CRLF conversion is deterministic. I used to do the same thing to repair inadvertent ASCII-mode FTP transfers.</p> <p>It's worth noting that the PNG file format is explicitly designed to catch exactly this (and related) problems. The magic number begins with 0x89 to catch anything that strips high bits, followed by "PNG" so you can easily tell what's in the file, followed by CR LF to catch various ASCII line converters, then 0x1a to trap old MS-DOS programs that used Ctrl-Z as a special end-of-file marker, and then a lone LF. By looking at the first few bytes of the file you can tell exactly what was done to it.</p> <p>...which means that your <code>repair()</code> function can accept both "corrupted" and "pure" input, and reliably determine if it needs to do anything.</p> <p><strong>Edit:</strong> one additional note: it's possible for the device-side binary to configure the tty to avoid the conversion, using <code>cfmakeraw()</code>. See the <code>prepareRawOutput()</code> function in the <a href="https://android.googlesource.com/platform/frameworks/av/+/lollipop-release/cmds/screenrecord/screenrecord.cpp" rel="noreferrer">screenrecord</a> command in Android 5.0, which can send raw video from the live screen capture across the ADB shell connection.</p>
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    1. PORead binary stdout data from adb shell?
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    1. COYes, the `repair()` solution is solid because of the determinism. I optimized it a bit to reduce the number of write calls to the output stream and now there is no discernable increase in processing time. Works great. Thanks!
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    2. CORe: "the 'corrupting' LF-to-CRLF conversion is deterministic": But is it reversible? If CRLF and LF are both converted to CRLF, then converting CRLF back to LF is *not* 100% reliable, since it will mess with cases where the original CRLF was correct.
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    3. COIn this case, CRLF becomes CRCRLF. If CRLF were passed through unmodified then it wouldn't be reversible.
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