Fix the build and introduce some APIs

The tcgetwinsize() and tcsetwinsize() APIs are now available. The
printargs.com example also now displays the baud rate.

libc/calls/tcgetwinsize.c

@@ -0,0 +1,28 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2023 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
+#include "libc/calls/ioctl.h"
+#include "libc/calls/struct/winsize.h"
+
+/**
+ * Gets terminal window size.
+ */
+int tcgetwinsize(int fd, struct winsize *ws) {
+  return ioctl_tiocgwinsz(fd, ws);
+}

libc/calls/tcsetwinsize.c

@@ -0,0 +1,28 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2023 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
+#include "libc/calls/ioctl.h"
+#include "libc/calls/struct/winsize.h"
+
+/**
+ * Sets terminal window size attributes.
+ */
+int tcsetwinsize(int fd, const struct winsize *ws) {
+  return ioctl_tiocswinsz(fd, ws);
+}

libc/calls/termios.h

@@ -35,6 +35,8 @@ int cfsetospeed(struct termios *, unsigned);
 int cfsetispeed(struct termios *, unsigned);
 uint32_t cfgetospeed(const struct termios *);
 uint32_t cfgetispeed(const struct termios *);
+int tcsetwinsize(int, const struct winsize *);
+int tcgetwinsize(int, struct winsize *);
 
 /*───────────────────────────────────────────────────────────────────────────│─╗
 │ cosmopolitan § teletypewriter » undiamonding                             ─╬─│┼

libc/runtime/printargs.c

@@ -511,6 +511,65 @@ textstartup void __printargs(const char *prologue) {
       } else if ((termios.c_cflag & CSIZE) == CS8) {
         kprintf(" CS8");
       }
+      if ((termios.c_cflag & CBAUD) == B0) {
+        kprintf(" B0");
+      } else if ((termios.c_cflag & CBAUD) == B50) {
+        kprintf(" B50");
+      } else if ((termios.c_cflag & CBAUD) == B75) {
+        kprintf(" B75");
+      } else if ((termios.c_cflag & CBAUD) == B110) {
+        kprintf(" B110");
+      } else if ((termios.c_cflag & CBAUD) == B134) {
+        kprintf(" B134");
+      } else if ((termios.c_cflag & CBAUD) == B150) {
+        kprintf(" B150");
+      } else if ((termios.c_cflag & CBAUD) == B200) {
+        kprintf(" B200");
+      } else if ((termios.c_cflag & CBAUD) == B300) {
+        kprintf(" B300");
+      } else if ((termios.c_cflag & CBAUD) == B600) {
+        kprintf(" B600");
+      } else if ((termios.c_cflag & CBAUD) == B1200) {
+        kprintf(" B1200");
+      } else if ((termios.c_cflag & CBAUD) == B1800) {
+        kprintf(" B1800");
+      } else if ((termios.c_cflag & CBAUD) == B2400) {
+        kprintf(" B2400");
+      } else if ((termios.c_cflag & CBAUD) == B4800) {
+        kprintf(" B4800");
+      } else if ((termios.c_cflag & CBAUD) == B9600) {
+        kprintf(" B9600");
+      } else if ((termios.c_cflag & CBAUD) == B19200) {
+        kprintf(" B19200");
+      } else if ((termios.c_cflag & CBAUD) == B38400) {
+        kprintf(" B38400");
+      } else if ((termios.c_cflag & CBAUD) == B57600) {
+        kprintf(" B57600");
+      } else if ((termios.c_cflag & CBAUD) == B115200) {
+        kprintf(" B115200");
+      } else if ((termios.c_cflag & CBAUD) == B230400) {
+        kprintf(" B230400");
+      } else if ((termios.c_cflag & CBAUD) == B500000) {
+        kprintf(" B500000");
+      } else if ((termios.c_cflag & CBAUD) == B576000) {
+        kprintf(" B576000");
+      } else if ((termios.c_cflag & CBAUD) == B1000000) {
+        kprintf(" B1000000");
+      } else if ((termios.c_cflag & CBAUD) == B1152000) {
+        kprintf(" B1152000");
+      } else if ((termios.c_cflag & CBAUD) == B1500000) {
+        kprintf(" B1500000");
+      } else if ((termios.c_cflag & CBAUD) == B2000000) {
+        kprintf(" B2000000");
+      } else if ((termios.c_cflag & CBAUD) == B2500000) {
+        kprintf(" B2500000");
+      } else if ((termios.c_cflag & CBAUD) == B3000000) {
+        kprintf(" B3000000");
+      } else if ((termios.c_cflag & CBAUD) == B3500000) {
+        kprintf(" B3500000");
+      } else if ((termios.c_cflag & CBAUD) == B4000000) {
+        kprintf(" B4000000");
+      }
       kprintf("\n");
       kprintf(prologue);
       kprintf("    c_lflag =");
@@ -530,8 +589,8 @@ textstartup void __printargs(const char *prologue) {
       if (termios.c_lflag & PENDIN) kprintf(" PENDIN");
       if (termios.c_lflag & XCASE) kprintf(" XCASE");
       kprintf("\n");
-      PRINT("    c_ispeed = %u", termios.c_ispeed);
+      PRINT("    c_ispeed = %u", cfgetispeed(&termios));
-      PRINT("    c_ospeed = %u", termios.c_ospeed);
+      PRINT("    c_ospeed = %u", cfgetospeed(&termios));
       PRINT("    c_cc[VMIN]     = %d", termios.c_cc[VMIN]);
       PRINT("    c_cc[VTIME]    = %d", termios.c_cc[VTIME]);
       PRINT("    c_cc[VINTR]    = CTRL-%c", CTRL(termios.c_cc[VINTR]));

tool/emacs/cosmo-cpp-constants.el

@@ -16,6 +16,7 @@
     "__GNUC_PATCHLEVEL__"
     "__GNUC__"
     "__APPLE__"
+    "__HAIKU__"
     "__CYGWIN__"
     "__EMSCRIPTEN__"
     "__ANDROID__"