Fix include/errno.h to not use kernel header, and instead use bits/errno.h.

This required we use _LIBC instead of __LIBC__ to be consistent with glibc.
This had some sideffects in sys/syscalls.h.  While fixing things, I made
everything use __set_errno() for (eventual) thread support.
 -Erik

4 files changed, 11 insertions, 11 deletions

diff --git a/libc/termios/tcgetsid.c b/libc/termios/tcgetsid.c
index 35e1c95eb..5e4addece 100644
--- a/libc/termios/tcgetsid.c
+++ b/libc/termios/tcgetsid.c
@@ -42,7 +42,7 @@ pid_t tcgetsid (int fd)
 	    if (errno == EINVAL)
 	    {
 		tiocgsid_does_not_work = 1;
-		errno=serrno;
+		__set_errno(serrno);
 	    }
 	    else
 		return (pid_t) -1;
@@ -58,7 +58,7 @@ pid_t tcgetsid (int fd)
 
     sid = getsid (pgrp);
     if (sid == -1 && errno == ESRCH)
-	errno=ENOTTY;
+	__set_errno(ENOTTY);
 
     return sid;
 }
diff --git a/libc/termios/tcsetattr.c b/libc/termios/tcsetattr.c
index 30ea46f4c..bb8c84d5c 100644
--- a/libc/termios/tcsetattr.c
+++ b/libc/termios/tcsetattr.c
@@ -69,7 +69,7 @@ tcsetattr (fd, optional_actions, termios_p)
       cmd = TCSETSF;
       break;
     default:
-      errno=EINVAL;
+      __set_errno(EINVAL);
       return -1;
     }
 
@@ -99,7 +99,7 @@ tcsetattr (fd, optional_actions, termios_p)
 	{
 	  /* We cannot verify if the setting is ok. We don't return
 	     an error (?). */
-	  errno=save;
+	  __set_errno(save);
 	  retval = 0;
 	}
       else if ((termios_p->c_cflag & (PARENB | CREAD))
@@ -111,7 +111,7 @@ tcsetattr (fd, optional_actions, termios_p)
 	  /* It looks like the Linux kernel silently changed the
 	     PARENB/CREAD/CSIZE bits in c_cflag. Report it as an
 	     error. */
-	  errno=EINVAL;
+	  __set_errno(EINVAL);
 	  retval = -1;
 	}
     }
diff --git a/libc/termios/termios.c b/libc/termios/termios.c
index a180e1011..d6cd124d1 100644
--- a/libc/termios/termios.c
+++ b/libc/termios/termios.c
@@ -88,7 +88,7 @@ int tcsendbreak( int fd, int duration)
 	 * changed to use trickery (e.g. lower speed and send a '\0') to send
 	 * the break, but for now just return an error.
 	 */
-	errno = EINVAL;
+	__set_errno(EINVAL);
 	return -1;
 }
 #endif
@@ -151,7 +151,7 @@ int cfsetospeed  (struct termios *termios_p, speed_t speed)
     if ((speed & ~CBAUD) != 0
 	    && (speed < B57600 || speed > B460800))
     {
-	errno=EINVAL;
+	__set_errno(EINVAL);
 	return -1;
     }
 
@@ -172,7 +172,7 @@ int cfsetispeed ( struct termios *termios_p, speed_t speed)
     if ((speed & ~CBAUD) != 0
 	    && (speed < B57600 || speed > B460800))
     {
-	errno=EINVAL;
+	__set_errno(EINVAL);
 	return -1;
     }
 
diff --git a/libc/termios/ttyname.c b/libc/termios/ttyname.c
index ee78137c0..2aa009104 100644
--- a/libc/termios/ttyname.c
+++ b/libc/termios/ttyname.c
@@ -17,7 +17,7 @@ int fd;
 	if (fstat(fd, &st) < 0)
 		return 0;
 	if (!isatty(fd)) {
-		errno = ENOTTY;
+		__set_errno(ENOTTY);
 		return 0;
 	}
 
@@ -32,11 +32,11 @@ int fd;
 		if (stat(name, &dst) == 0
 			&& st.st_dev == dst.st_dev && st.st_ino == dst.st_ino) {
 			closedir(fp);
-			errno = noerr;
+			__set_errno(noerr);
 			return name;
 		}
 	}
 	closedir(fp);
-	errno = noerr;
+	__set_errno(noerr);
 	return 0;
 }