Add mes and mescc-tools-extra

mescc-tools-extra contains two important tools:
- cp
- chmod

mes first builds itself from a mes 0.21 seed as used by guix, and then
builds a mes 0.22 and then mes 0.22 using that created mes 0.22.

It does /not/ use bootstrap.sh as we don't have a proper shell at this
point, it has been manually adapted for kaem.

sysa/mes-0.22/lib/posix/alarm.c

@@ -0,0 +1,38 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <unistd.h>
+#include <sys/time.h>
+
+unsigned int
+alarm (unsigned int seconds)
+{
+#if !__MESC__
+  struct itimerval old;
+  struct itimerval new;
+  new.it_interval.tv_usec = 0;
+  new.it_interval.tv_sec = 0;
+  new.it_value.tv_usec = 0;
+  new.it_value.tv_sec = (long int) seconds;
+  if (setitimer (ITIMER_REAL, &new, &old) < 0)
+    return 0;
+  return old.it_value.tv_sec;
+#endif
+}

sysa/mes-0.22/lib/posix/buffered-read.c

@@ -0,0 +1,48 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <fcntl.h>
+
+ssize_t
+read (int filedes, void *buffer, size_t size)
+{
+  ssize_t bytes = __buffered_read (filedes, buffer, size);
+  if (__mes_debug () > 4)
+    {
+      if (bytes == 1)
+        {
+          eputs ("read fd=");
+          eputs (itoa ((int) filedes));
+          eputs (" c=");
+          eputc (*(char *) buffer);
+          eputs ("\n");
+        }
+      else
+        {
+          eputs ("read fd=");
+          eputs (itoa ((int) filedes));
+          eputs (" bytes=");
+          eputs (itoa (bytes));
+          eputs ("\n");
+        }
+    }
+  return bytes;
+}

sysa/mes-0.22/lib/posix/execl.c

@@ -0,0 +1,67 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+int
+vexec (char const *file_name, va_list ap)
+{
+  char *arg = va_arg (ap, char *);
+  char *argv[1000];             // POSIX minimum 4096
+  int i = 0;
+
+  argv[i++] = (char *) file_name;
+  while (arg)
+    {
+      argv[i++] = arg;
+      arg = va_arg (ap, char *);
+      if (__mes_debug () > 2)
+        {
+          eputs ("arg[");
+          eputs (itoa (i));
+          eputs ("]: ");
+          eputs (argv[i - 1]);
+          eputs ("\n");
+        }
+    }
+  argv[i] = 0;
+  int r = execv (file_name, argv);
+  va_end (ap);
+  return r;
+}
+
+int
+execl (char const *file_name, char const *arg, ...)
+{
+  va_list ap;
+  int r;
+  va_start (ap, arg);
+  if (__mes_debug () > 2)
+    {
+      eputs ("execl ");
+      eputs (file_name);
+      eputs ("\n");
+    }
+  r = vexec (file_name, ap);
+  va_end (ap);
+  return r;
+}

sysa/mes-0.22/lib/posix/execlp.c

@@ -0,0 +1,48 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <string.h>
+
+int
+execlp (char const *file_name, char const *arg, ...)
+{
+  va_list ap;
+  int r;
+  va_start (ap, arg);
+  if (!strchr (file_name, '/'))
+    file_name = search_path (file_name);
+  if (__mes_debug () > 2)
+    {
+      eputs ("execlp ");
+      eputs (file_name ? file_name : "0");
+      eputs ("\n");
+    }
+  if (!file_name)
+    {
+      errno = ENOENT;
+      return -1;
+    }
+  r = vexec (file_name, ap);
+  va_end (ap);
+  return r;
+}

sysa/mes-0.22/lib/posix/execv.c

@@ -0,0 +1,28 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <unistd.h>
+
+int
+execv (char const *file_name, char *const argv[])
+{
+  return execve (file_name, argv, environ);
+}

sysa/mes-0.22/lib/posix/execvp.c

@@ -0,0 +1,53 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+int
+execvp (char const *file_name, char *const argv[])
+{
+  if (!strchr (file_name, '/'))
+    file_name = search_path (file_name);
+  if (!file_name)
+    {
+      errno = ENOENT;
+      return -1;
+    }
+  if (__mes_debug ())
+    {
+      eputs (" EXEC: ");
+      eputs (file_name);
+      eputs ("\n");
+      int i = 0;
+      while (argv[i])
+        {
+          eputs (" arg[");
+          eputs (itoa (i));
+          eputs ("]: ");
+          eputs (argv[i]);
+          eputs ("\n");
+          i++;
+        }
+    }
+  return execve (file_name, argv, environ);
+}

sysa/mes-0.22/lib/posix/getcwd.c

@@ -0,0 +1,33 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <mes/lib.h>
+
+char *
+getcwd (char *buffer, size_t size)
+{
+  static char buf[PATH_MAX];
+  if (buffer)
+    return _getcwd (buffer, size);
+  return _getcwd (buf, PATH_MAX);
+}

sysa/mes-0.22/lib/posix/getenv.c

@@ -0,0 +1,37 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *
+getenv (char const *s)
+{
+  char **p = environ;
+  int length = strlen (s);
+  while (*p)
+    {
+      if (!strncmp (s, *p, length) && *(*p + length) == '=')
+        return (*p + length + 1);
+      p++;
+    }
+  return 0;
+}

sysa/mes-0.22/lib/posix/getopt.c

@@ -0,0 +1,368 @@
+/* Getopt for GNU.
+   Copyright (C) 1987, 88, 89, 90, 91, 1992 Free Software Foundation, Inc.
+   Copyright (C) 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; If not, see <http://www.gnu.org/licenses/>. */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <getopt.h>
+
+#if __MESC__
+#define static
+#endif
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here. */
+
+char *optarg = 0;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns EOF, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+int optind = 0;
+
+/* The next char to be scanned in the option-element
+   in which the last option character we returned was found.
+   This allows us to pick up the scan where we left off.
+
+   If this is zero, or a null string, it means resume the scan
+   by advancing to the next ARGV-element.  */
+
+static char *nextchar;
+
+/* Callers store zero here to inhibit the error message
+   for unrecognized options.  */
+
+int opterr = 1;
+
+
+/* Handle permutation of arguments.  */
+
+/* Describe the part of ARGV that contains non-options that have
+   been skipped.  `first_nonopt' is the index in ARGV of the first of them;
+   `last_nonopt' is the index after the last of them.  */
+
+static int first_nonopt;
+static int last_nonopt;
+
+
+/* Scan elements of ARGV (whose length is ARGC) for option characters
+   given in OPTSTRING.
+
+   If an element of ARGV starts with '-', and is not exactly "-" or "--",
+   then it is an option element.  The characters of this element
+   (aside from the initial '-') are option characters.  If `getopt'
+   is called repeatedly, it returns successively each of the option characters
+   from each of the option elements.
+
+   If `getopt' finds another option character, it returns that character,
+   updating `optind' and `nextchar' so that the next call to `getopt' can
+   resume the scan with the following option character or ARGV-element.
+
+   If there are no more option characters, `getopt' returns `EOF'.
+   Then `optind' is the index in ARGV of the first ARGV-element
+   that is not an option.  (The ARGV-elements have been permuted
+   so that those that are not options now come last.)
+
+   OPTSTRING is a string containing the legitimate option characters.
+   If an option character is seen that is not listed in OPTSTRING,
+   return '?' after printing an error message.  If you set `opterr' to
+   zero, the error message is suppressed but we still return '?'.
+
+   If a char in OPTSTRING is followed by a colon, that means it wants an arg,
+   so the following text in the same ARGV-element, or the text of the following
+   ARGV-element, is returned in `optarg'.  Two colons mean an option that
+   wants an optional arg; if there is text in the current ARGV-element,
+   it is returned in `optarg', otherwise `optarg' is set to zero.
+
+   If OPTSTRING starts with `-' or `+', it requests different methods of
+   handling the non-option ARGV-elements.
+
+   Long-named options begin with `--' instead of `-'.
+   Their names may be abbreviated as long as the abbreviation is unique
+   or is an exact match for some defined option.  If they have an
+   argument, it follows the option name in the same ARGV-element, separated
+   from the option name by a `=', or else the in next ARGV-element.
+   When `getopt' finds a long-named option, it returns 0 if that option's
+   `flag' field is nonzero, the value of the option's `val' field
+   if the `flag' field is zero.
+
+   The elements of ARGV aren't really const, because we permute them.
+   But we pretend they're const in the prototype to be compatible
+   with other systems.
+
+   LONGOPTS is a vector of `struct option' terminated by an
+   element containing a name which is zero.
+
+   LONGIND returns the index in LONGOPT of the long-named option found.
+   It is only valid when a long-named option has been found by the most
+   recent call.
+
+   If LONG_ONLY is nonzero, '-' as well as '--' can introduce
+   long-named options.  */
+
+int
+_getopt_internal (int argc, char *const
+                  *argv, char const *optstring, struct option const *longopts, int *longind, int long_only)
+{
+  int option_index;
+
+  optarg = 0;
+
+  /* Initialize the internal data when the first call is made.
+     Start processing options with ARGV-element 1 (since ARGV-element 0
+     is the program name); the sequence of previously skipped
+     non-option ARGV-elements is empty.  */
+
+  if (optind == 0)
+    {
+      first_nonopt = last_nonopt = optind = 1;
+
+      nextchar = NULL;
+    }
+
+  if (nextchar == NULL || *nextchar == '\0')
+    {
+      /* If we have done all the ARGV-elements, stop the scan
+         and back over any non-options that we skipped and permuted.  */
+
+      if (optind == argc)
+        {
+          /* Set the next-arg-index to point at the non-options
+             that we previously skipped, so the caller will digest them.  */
+          if (first_nonopt != last_nonopt)
+            optind = first_nonopt;
+          return EOF;
+        }
+
+      /* If we have come to a non-option and did not permute it,
+         either stop the scan or describe it to the caller and pass it by.  */
+
+      if ((argv[optind][0] != '-' || argv[optind][1] == '\0'))
+        return EOF;
+
+      /* We have found another option-ARGV-element.
+         Start decoding its characters.  */
+
+      nextchar = (argv[optind] + 1 + (longopts != NULL && argv[optind][1] == '-'));
+    }
+
+  if (longopts != NULL && ((argv[optind][0] == '-' && (argv[optind][1] == '-' || long_only))))
+    {
+      const struct option *p;
+      char *s = nextchar;
+      int exact = 0;
+      int ambig = 0;
+      const struct option *pfound = NULL;
+      int indfound;
+
+      while (*s && *s != '=')
+        s++;
+
+      /* Test all options for either exact match or abbreviated matches.  */
+      for (p = longopts, option_index = 0; p->name; p++, option_index++)
+        if (!strncmp (p->name, nextchar, s - nextchar))
+          {
+            if (s - nextchar == strlen (p->name))
+              {
+                /* Exact match found.  */
+                pfound = p;
+                indfound = option_index;
+                exact = 1;
+                break;
+              }
+            else if (pfound == NULL)
+              {
+                /* First nonexact match found.  */
+                pfound = p;
+                indfound = option_index;
+              }
+            else
+              /* Second nonexact match found.  */
+              ambig = 1;
+          }
+
+      if (ambig && !exact)
+        {
+          if (opterr)
+            fprintf (stderr, "%s: option `%s' is ambiguous\n", argv[0], argv[optind]);
+          nextchar += strlen (nextchar);
+          optind++;
+          return '?';
+        }
+
+      if (pfound != NULL)
+        {
+          option_index = indfound;
+          optind++;
+          if (*s)
+            {
+              /* Don't test has_arg with >, because some C compilers don't
+                 allow it to be used on enums. */
+              if (pfound->has_arg)
+                optarg = s + 1;
+              else
+                {
+                  if (opterr)
+                    {
+                      if (argv[optind - 1][1] == '-')
+                        /* --option */
+                        fprintf (stderr,
+                                 "%s: option `--%s' doesn't allow an argument\n", argv[0], pfound->name);
+                      else
+                        /* +option or -option */
+                        fprintf (stderr,
+                                 "%s: option `%c%s' doesn't allow an argument\n",
+                                 argv[0], argv[optind - 1][0], pfound->name);
+                    }
+                  nextchar += strlen (nextchar);
+                  return '?';
+                }
+            }
+          else if (pfound->has_arg == 1)
+            {
+              if (optind < argc)
+                optarg = argv[optind++];
+              else
+                {
+                  if (opterr)
+                    fprintf (stderr, "%s: option `%s' requires an argument\n", argv[0], argv[optind - 1]);
+                  nextchar += strlen (nextchar);
+                  return '?';
+                }
+            }
+          nextchar += strlen (nextchar);
+          if (longind != NULL)
+            *longind = option_index;
+          if (pfound->flag)
+            {
+              *(pfound->flag) = pfound->val;
+              return 0;
+            }
+          return pfound->val;
+        }
+      /* Can't find it as a long option.  If this is not getopt_long_only,
+         or the option starts with '--' or is not a valid short
+         option, then it's an error.
+         Otherwise interpret it as a short option. */
+      if (!long_only || argv[optind][1] == '-' || strchr (optstring, *nextchar) == NULL)
+        {
+          if (opterr)
+            {
+              if (argv[optind][1] == '-')
+                /* --option */
+                fprintf (stderr, "%s: unrecognized option `--%s'\n", argv[0], nextchar);
+              else
+                /* +option or -option */
+                fprintf (stderr, "%s: unrecognized option `%c%s'\n", argv[0], argv[optind][0], nextchar);
+            }
+          nextchar += strlen (nextchar);
+          optind++;
+          return '?';
+        }
+    }
+
+  /* Look at and handle the next option-character.  */
+
+  {
+    char c = *nextchar++;
+    char *temp = strchr (optstring, c);
+
+    /* Increment `optind' when we start to process its last character.  */
+    if (*nextchar == '\0')
+      optind++;
+
+    if (temp == NULL || c == ':')
+      {
+        if (opterr)
+          {
+            if (c < 040 || c >= 0177)
+              fprintf (stderr, "%s: unrecognized option, character code 0%o\n", argv[0], c);
+            else
+              fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c);
+          }
+        return '?';
+      }
+    if (temp[1] == ':')
+      {
+        if (temp[2] == ':')
+          {
+            /* This is an option that accepts an argument optionally.  */
+            if (*nextchar != '\0')
+              {
+                optarg = nextchar;
+                optind++;
+              }
+            else
+              optarg = 0;
+            nextchar = NULL;
+          }
+        else
+          {
+            /* This is an option that requires an argument.  */
+            if (*nextchar != 0)
+              {
+                optarg = nextchar;
+                /* If we end this ARGV-element by taking the rest as an arg,
+                   we must advance to the next element now.  */
+                optind++;
+              }
+            else if (optind == argc)
+              {
+                if (opterr)
+                  fprintf (stderr, "%s: option `-%c' requires an argument\n", argv[0], c);
+                c = '?';
+              }
+            else
+              /* We already incremented `optind' once;
+                 increment it again when taking next ARGV-elt as argument.  */
+              optarg = argv[optind++];
+            nextchar = NULL;
+          }
+      }
+    return c;
+  }
+}
+
+int
+getopt (int argc, char *const *argv, char const *options)
+{
+  return _getopt_internal (argc, argv, options, (const struct option *) 0, (int *) 0, 0);
+}
+
+int
+getopt_long (int argc, char *const *argv, char const *options,
+             struct option const *long_options, int *opt_index)
+{
+  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+}
+
+int
+getopt_long_only (int argc, char *const *argv, char const *options,
+                  struct option const *long_options, int *opt_index)
+{
+  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
+}

sysa/mes-0.22/lib/posix/isatty.c

@@ -0,0 +1,81 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termio.h>
+
+#if !SYSTEM_LIBC
+typedef unsigned char cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+// Use termio, termios2?
+#define NCCS 19
+struct termios
+{
+  tcflag_t c_iflag;
+  tcflag_t c_oflag;
+  tcflag_t c_cflag;
+  tcflag_t c_lflag;
+  cc_t c_line;
+  cc_t c_cc[NCCS];
+};
+#endif
+
+struct ktermios
+{
+  tcflag_t c_iflag;
+  tcflag_t c_oflag;
+  tcflag_t c_cflag;
+  tcflag_t c_lflag;
+  cc_t c_line;
+  cc_t c_cc[NCCS];
+  speed_t c_ispeed;
+  speed_t c_ospeed;
+};
+
+int
+__tcgetattr (int filedes, struct termios *termios_p)
+{
+  struct ktermios kernel_termios;
+  int r = ioctl3 (filedes, TCGETS, (long) &kernel_termios);
+
+  termios_p->c_iflag = kernel_termios.c_iflag;
+  termios_p->c_oflag = kernel_termios.c_oflag;
+  termios_p->c_cflag = kernel_termios.c_cflag;
+  termios_p->c_lflag = kernel_termios.c_lflag;
+  termios_p->c_line = kernel_termios.c_line;
+#if 0
+  termios_p->c_ispeed = kernel_termios.c_ispeed;
+  termios_p->c_ospeed = kernel_termios.c_ospeed;
+#endif
+  memcpy (&termios_p->c_cc[0], &kernel_termios.c_cc[0], NCCS * sizeof (cc_t));
+  return r;
+}
+
+int
+isatty (int filedes)
+{
+  struct termios term;
+  return __tcgetattr (filedes, &term) == 0;
+}

sysa/mes-0.22/lib/posix/mktemp.c

@@ -0,0 +1,36 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <unistd.h>
+
+char *
+mktemp (char *template)
+{
+  char *p = strchr (template, '\0');
+  int q = (long) template;
+  *--p = ((unsigned char) (q >> 4)) % 26 + 'a';
+  *--p = ((unsigned char) (q >> 8)) % 26 + 'a';
+  *--p = ((unsigned char) (q >> 12)) % 26 + 'a';
+  *--p = ((unsigned char) (q >> 16)) % 26 + 'a';
+  *--p = ((unsigned char) (q >> 20)) % 26 + 'a';
+  *--p = ((unsigned char) (q >> 24)) % 26 + 'a';
+  return template;
+}

sysa/mes-0.22/lib/posix/open.c

@@ -0,0 +1,46 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <fcntl.h>
+#include <stdarg.h>
+
+int
+_open2 (char const *file_name, int flags)
+{
+  int mask = 0777;
+  return _open3 (file_name, flags, mask);
+}
+
+int
+open (char const *file_name, int flags, ...)
+{
+  if (flags & O_CREAT)
+    {
+      va_list ap;
+      va_start (ap, flags);
+      int mask = va_arg (ap, int);
+      int r = _open3 (file_name, flags, mask);
+      va_end (ap);
+      return r;
+    }
+  else
+    return _open2 (file_name, flags);
+}

sysa/mes-0.22/lib/posix/raise.c

@@ -0,0 +1,28 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <signal.h>
+#include <unistd.h>
+
+int
+raise (int signum)
+{
+  kill (getpid (), signum);
+}

sysa/mes-0.22/lib/posix/sbrk.c

@@ -0,0 +1,36 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#if __SBRK_CHAR_PTRDIFF
+char *
+sbrk (ptrdiff_t)
+#else
+void *
+sbrk (intptr_t delta)
+#endif
+{
+  if (delta >= 0)
+    return malloc (delta);
+  return __brk;
+}

sysa/mes-0.22/lib/posix/setenv.c

@@ -0,0 +1,46 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <string.h>
+#include <stdlib.h>
+
+int
+setenv (char const *s, char const *v, int overwrite_p)
+{
+  char **p = environ;
+  int length = strlen (s);
+  while (*p)
+    {
+      if (!strncmp (s, *p, length) && *(*p + length) == '=')
+        break;
+      p++;
+    }
+  char *entry = malloc (length + strlen (v) + 2);
+  int end_p = *p == 0;
+  *p = entry;
+  strcpy (entry, s);
+  strcpy (entry + length, "=");
+  strcpy (entry + length + 1, v);
+  *(entry + length + strlen (v) + 2) = 0;
+  if (end_p)
+    *++p = 0;
+  return 0;
+}

sysa/mes-0.22/lib/posix/sleep.c

@@ -0,0 +1,33 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+unsigned int
+sleep (unsigned int seconds)
+{
+  struct timespec requested_time;
+  struct timespec remaining;
+  requested_time.tv_sec = seconds;
+  requested_time.tv_nsec = 0;
+  return nanosleep (&requested_time, &remaining);
+}

sysa/mes-0.22/lib/posix/unsetenv.c

@@ -0,0 +1,41 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <string.h>
+#include <unistd.h>
+
+void
+unsetenv (char const *name)
+{
+  int length = strlen (name);
+  char **p = environ;
+  while (*p)
+    {
+      if (!strncmp (name, *p, length) && *(*p + length) == '=')
+        {
+          char **q = p;
+          q[0] = q[1];
+          while (*q++)
+            q[0] = q[1];
+        }
+      p++;
+    }
+}

sysa/mes-0.22/lib/posix/wait.c

@@ -0,0 +1,27 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <sys/wait.h>
+
+pid_t
+wait (int *status_ptr)
+{
+  return waitpid (-1, status_ptr, 0);
+}

sysa/mes-0.22/lib/posix/write.c

@@ -0,0 +1,41 @@
+/* -*-comment-start: "//";comment-end:""-*-
+ * GNU Mes --- Maxwell Equations of Software
+ * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+ *
+ * This file is part of GNU Mes.
+ *
+ * GNU Mes is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * GNU Mes is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <mes/lib.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+ssize_t
+write (int filedes, void const *buffer, size_t size)
+{
+  size_t skip = __buffered_read_clear (filedes);
+  if (skip)
+    lseek (filedes, -skip, SEEK_CUR);
+  int r = _write (filedes, buffer, size);
+  if (r < 0)
+    {
+      errno = -r;
+      r = -1;
+    }
+  else
+    errno = 0;
+  return r;
+}