Add libotr/etc sources

1 files changed, 177 insertions, 0 deletions

diff --git a/libotr/libgpg-error-1.42/src/strerror.c b/libotr/libgpg-error-1.42/src/strerror.c
new file mode 100644
index 0000000..4cce17f
--- /dev/null
+++ b/libotr/libgpg-error-1.42/src/strerror.c
@@ -0,0 +1,177 @@
+/* strerror.c - Describing an error code.
+   Copyright (C) 2003 g10 Code GmbH
+
+   This file is part of libgpg-error.
+
+   libgpg-error is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License
+   as published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+
+   libgpg-error 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with libgpg-error; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include <gpg-error.h>
+
+#include "gettext.h"
+#include "err-codes.h"
+
+/* Return a pointer to a string containing a description of the error
+   code in the error value ERR.  This function is not thread-safe.  */
+const char *
+_gpg_strerror (gpg_error_t err)
+{
+  gpg_err_code_t code = gpg_err_code (err);
+
+  if (code & GPG_ERR_SYSTEM_ERROR)
+    {
+      int no = gpg_err_code_to_errno (code);
+      if (no)
+	return strerror (no);
+      else
+	code = GPG_ERR_UNKNOWN_ERRNO;
+    }
+  return dgettext (PACKAGE, msgstr + msgidx[msgidxof (code)]);
+}
+
+
+#ifdef HAVE_STRERROR_R
+#ifdef STRERROR_R_CHAR_P
+/* The GNU C library and probably some other systems have this weird
+   variant of strerror_r.  */
+
+/* Return a dynamically allocated string in *STR describing the system
+   error NO.  If this call succeeds, return 1.  If this call fails due
+   to a resource shortage, set *STR to NULL and return 1.  If this
+   call fails because the error number is not valid, don't set *STR
+   and return 0.  */
+static int
+system_strerror_r (int no, char *buf, size_t buflen)
+{
+  char *errstr;
+
+  errstr = strerror_r (no, buf, buflen);
+  if (errstr != buf)
+    {
+      size_t errstr_len = strlen (errstr) + 1;
+      size_t cpy_len = errstr_len < buflen ? errstr_len : buflen;
+      memcpy (buf, errstr, cpy_len);
+
+      return cpy_len == errstr_len ? 0 : ERANGE;
+    }
+  else
+    {
+      /* We can not tell if the buffer was large enough, but we can
+	 try to make a guess.  */
+      if (strlen (buf) + 1 >= buflen)
+	return ERANGE;
+
+      return 0;
+    }
+}
+
+#else	/* STRERROR_R_CHAR_P */
+/* Now the POSIX version.  */
+
+static int
+system_strerror_r (int no, char *buf, size_t buflen)
+{
+  return strerror_r (no, buf, buflen);
+}
+
+#endif	/* STRERROR_R_CHAR_P */
+#elif defined (HAVE_STRERROR_S)
+/* Now the Windows version.  */
+
+static int
+system_strerror_r (int no, char *buf, size_t buflen)
+{
+  return strerror_s (buf, buflen, no);
+}
+
+#else	/* ! HAVE_STRERROR_R && ! HAVE_STRERROR_S */
+/* Without strerror_r(), we can still provide a non-thread-safe
+   version.  Maybe we are even lucky and the system's strerror() is
+   already thread-safe.  */
+
+static int
+system_strerror_r (int no, char *buf, size_t buflen)
+{
+  char *errstr = strerror (no);
+
+  if (!errstr)
+    {
+      int saved_errno = errno;
+
+      if (saved_errno != EINVAL)
+	snprintf (buf, buflen, "strerror failed: %i\n", errno);
+      return saved_errno;
+    }
+  else
+    {
+      size_t errstr_len = strlen (errstr) + 1;
+      size_t cpy_len = errstr_len < buflen ? errstr_len : buflen;
+      memcpy (buf, errstr, cpy_len);
+      return cpy_len == errstr_len ? 0 : ERANGE;
+    }
+}
+#endif
+
+
+/* Return the error string for ERR in the user-supplied buffer BUF of
+   size BUFLEN.  This function is, in contrast to gpg_strerror,
+   thread-safe if a thread-safe strerror_r() function is provided by
+   the system.  If the function succeeds, 0 is returned and BUF
+   contains the string describing the error.  If the buffer was not
+   large enough, ERANGE is returned and BUF contains as much of the
+   beginning of the error string as fits into the buffer.  */
+int
+_gpg_strerror_r (gpg_error_t err, char *buf, size_t buflen)
+{
+  gpg_err_code_t code = gpg_err_code (err);
+  const char *errstr;
+  size_t errstr_len;
+  size_t cpy_len;
+
+  if (code & GPG_ERR_SYSTEM_ERROR)
+    {
+      int no = gpg_err_code_to_errno (code);
+      if (no)
+	{
+	  int system_err = system_strerror_r (no, buf, buflen);
+
+	  if (system_err != EINVAL)
+	    {
+	      if (buflen)
+		buf[buflen - 1] = '\0';
+	      return system_err;
+	    }
+	}
+      code = GPG_ERR_UNKNOWN_ERRNO;
+    }
+
+  errstr = dgettext (PACKAGE, msgstr + msgidx[msgidxof (code)]);
+  errstr_len = strlen (errstr) + 1;
+  cpy_len = errstr_len < buflen ? errstr_len : buflen;
+  memcpy (buf, errstr, cpy_len);
+  if (buflen)
+    buf[buflen - 1] = '\0';
+
+  return cpy_len == errstr_len ? 0 : ERANGE;
+}