initial check-in, version 0.5.0 v0.5.0

3 files changed, 134 insertions, 0 deletions

diff --git a/src/errno/__errno_location.c b/src/errno/__errno_location.c
new file mode 100644
index 00000000..0a220b63
--- /dev/null
+++ b/src/errno/__errno_location.c
@@ -0,0 +1,11 @@
+#include <errno.h>
+#include "libc.h"
+
+#undef errno
+int errno;
+
+int *__errno_location(void)
+{
+	if (libc.errno_location) return libc.errno_location();
+	return &errno;
+}
diff --git a/src/errno/__strerror.h b/src/errno/__strerror.h
new file mode 100644
index 00000000..00eaf938
--- /dev/null
+++ b/src/errno/__strerror.h
@@ -0,0 +1,101 @@
+/* This file is sorted such that 'errors' which represent exceptional
+ * conditions under which a correct program may fail come first, followed
+ * by messages that indicate an incorrect program or system failure. The
+ * macro E() along with double-inclusion is used to ensure that ordering
+ * of the strings remains synchronized. */
+
+E(EILSEQ,       "Illegal byte sequence")
+E(EDOM,         "Argument outside domain")
+E(ERANGE,       "Result not representable")
+
+E(ENOTTY,       "Not a tty")
+E(EACCES,       "Permission denied")
+E(EPERM,        "Operation not permitted")
+E(ENOENT,       "No such file or directory")
+E(ESRCH,        "No such process")
+E(EEXIST,       "File exists")
+
+E(EOVERFLOW,    "Value too large for defined data type")
+E(ENOSPC,       "No space left on device")
+E(ENOMEM,       "Out of memory")
+
+E(EBUSY,        "Device or resource busy")
+E(EINTR,        "Interrupted system call")
+E(EAGAIN,       "Operation would block")
+E(ESPIPE,       "Illegal seek")
+
+E(EXDEV,        "Cross-device link")
+E(EROFS,        "Read-only file system")
+E(ENOTEMPTY,    "Directory not empty")
+
+E(ECONNRESET,   "Connection reset by peer")
+E(ETIMEDOUT,    "Connection timed out")
+E(ECONNREFUSED, "Connection refused")
+E(EHOSTDOWN,    "Host is down")
+E(EHOSTUNREACH, "No route to host")
+E(EADDRINUSE,   "Address already in use")
+
+E(EPIPE,        "Broken pipe")
+E(EIO,          "I/O error")
+E(ENXIO,        "No such device or address")
+E(ENOTBLK,      "Block device required")
+E(ENODEV,       "No such device")
+E(ENOTDIR,      "Not a directory")
+E(EISDIR,       "Is a directory")
+E(ETXTBSY,      "Text file busy")
+E(ENOEXEC,      "Exec format error")
+
+E(EINVAL,       "Invalid argument")
+
+E(E2BIG,        "Argument list too long")
+E(ELOOP,        "Too many levels of symbolic links")
+E(ENAMETOOLONG, "Filename too long")
+E(ENFILE,       "File table overflow")
+E(EMFILE,       "Too many open files")
+E(EBADF,        "Bad file number")
+E(ECHILD,       "No child processes")
+E(EFAULT,       "Bad address")
+E(EFBIG,        "File too large")
+E(EMLINK,       "Too many links")
+E(ENOLCK,       "No record locks available")
+
+E(EDEADLK,      "Resource deadlock would occur")
+E(ENOSYS,       "Function not supported")
+E(ENOMSG,       "No message of desired type")
+E(EIDRM,        "Identifier removed")
+E(ENOSTR,       "Device not a stream")
+E(ENODATA,      "No data available")
+E(ETIME,        "Timer expired")
+E(ENOSR,        "Out of streams resources")
+E(ENOLINK,      "Link has been severed")
+E(EPROTO,       "Protocol error")
+E(EBADMSG,      "Not a data message")
+E(EBADFD,       "File descriptor in bad state")
+E(ENOTSOCK,     "Socket operation on non-socket")
+E(EDESTADDRREQ, "Destination address required")
+E(EMSGSIZE,     "Message too long")
+E(EPROTOTYPE,   "Protocol wrong type for socket")
+E(ENOPROTOOPT,  "Protocol not available")
+E(EPROTONOSUPPORT,"Protocol not supported")
+E(ESOCKTNOSUPPORT,"Socket type not supported")
+E(EOPNOTSUPP,   "Operation not supported on socket")
+E(EPFNOSUPPORT, "Protocol family not supported")
+E(EAFNOSUPPORT, "Address family not supported by protocol")
+E(EADDRNOTAVAIL,"Cannot assign requested address")
+E(ENETDOWN,     "Network is down")
+E(ENETUNREACH,  "Network is unreachable")
+E(ENETRESET,    "Network dropped connection because of reset")
+E(ECONNABORTED, "Software caused connection abort")
+E(ENOBUFS,      "No buffer space available")
+E(EISCONN,      "Socket is connected")
+E(ENOTCONN,     "Socket is not connected")
+E(ESHUTDOWN,    "Cannot send after socket shutdown")
+E(EALREADY,     "Operation already in progress")
+E(EINPROGRESS,  "Operation now in progress")
+E(ESTALE,       "Stale NFS file handle")
+E(EREMOTEIO,    "Remote I/O error")
+E(EDQUOT,       "Quota exceeded")
+E(ENOMEDIUM,    "No medium found")
+E(EMEDIUMTYPE,  "Wrong medium type")
+
+E(0,            "Invalid error number")
diff --git a/src/errno/strerror.c b/src/errno/strerror.c
new file mode 100644
index 00000000..b8fbc6db
--- /dev/null
+++ b/src/errno/strerror.c
@@ -0,0 +1,22 @@
+#include <errno.h>
+#include <string.h>
+
+#define E(a,b) a,
+static const unsigned char errid[] = {
+#include "__strerror.h"
+};
+
+#undef E
+#define E(a,b) b "\0"
+static const char errmsg[] =
+#include "__strerror.h"
+;
+
+char *strerror(int e)
+{
+	const char *s;
+	int i;
+	for (i=0; errid[i] && errid[i] != e; i++);
+	for (s=errmsg; i; s++, i--) for (; *s; s++);
+	return (char *)s;
+}