-/* Copyright (C) 2007 Board of Trustees, Leland Stanford Jr. University.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
+ * Junior University
+ *
+ * We are making the OpenFlow specification and associated documentation
+ * (Software) available for public use and benefit with the expectation
+ * that others will use, modify and enhance the Software and contribute
+ * those enhancements back to the community. However, since we would
+ * like to make the Software available for broadest use, with as few
+ * restrictions as possible permission is hereby granted, free of
+ * charge, to any person obtaining a copy of this Software to deal in
+ * the Software under the copyrights without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * The name and trademarks of copyright holder(s) may NOT be used in
+ * advertising or publicity pertaining to the Software or any
+ * derivatives without specific, written prior permission.
*/
+#include <config.h>
#include "util.h"
+#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
const char *program_name;
-static void
+void
out_of_memory(void)
{
- fatal(0, "virtual memory exhausted");
+ ofp_fatal(0, "virtual memory exhausted");
}
void *
return p;
}
+void *
+xmemdup(const void *p_, size_t size)
+{
+ void *p = xmalloc(size);
+ memcpy(p, p_, size);
+ return p;
+}
+
char *
-xstrdup(const char *s_)
+xmemdup0(const char *p_, size_t length)
{
- size_t size = strlen(s_) + 1;
- char *s = xmalloc(size);
- memcpy(s, s_, size);
- return s;
+ char *p = xmalloc(length + 1);
+ memcpy(p, p_, length);
+ p[length] = '\0';
+ return p;
}
char *
-xasprintf(const char *format, ...)
+xstrdup(const char *s)
{
- va_list args;
+ return xmemdup0(s, strlen(s));
+}
+
+char *
+xvasprintf(const char *format, va_list args)
+{
+ va_list args2;
size_t needed;
char *s;
- va_start(args, format);
+ va_copy(args2, args);
needed = vsnprintf(NULL, 0, format, args);
- va_end(args);
s = xmalloc(needed + 1);
- va_start(args, format);
- vsnprintf(s, needed + 1, format, args);
- va_end(args);
+ vsnprintf(s, needed + 1, format, args2);
+ va_end(args2);
return s;
}
-void fatal(int err_no, const char *format, ...)
+void *
+x2nrealloc(void *p, size_t *n, size_t s)
+{
+ *n = *n == 0 ? 1 : 2 * *n;
+ return xrealloc(p, *n * s);
+}
+
+char *
+xasprintf(const char *format, ...)
{
va_list args;
+ char *s;
- fprintf(stderr, "%s: ", program_name);
va_start(args, format);
- vfprintf(stderr, format, args);
+ s = xvasprintf(format, args);
va_end(args);
- if (err_no != 0)
- fprintf(stderr, " (%s)", strerror(err_no));
- putc('\n', stderr);
- exit(EXIT_FAILURE);
+ return s;
}
-void error(int err_no, const char *format, ...)
+void
+strlcpy(char *dst, const char *src, size_t size)
+{
+ if (size > 0) {
+ size_t n = strlen(src);
+ size_t n_copy = MIN(n, size - 1);
+ memcpy(dst, src, n_copy);
+ dst[n_copy] = '\0';
+ }
+}
+
+void
+ofp_fatal(int err_no, const char *format, ...)
{
va_list args;
if (err_no != 0)
fprintf(stderr, " (%s)", strerror(err_no));
putc('\n', stderr);
+
+ exit(EXIT_FAILURE);
}
-void debug(int err_no, const char *format, ...)
+void
+ofp_error(int err_no, const char *format, ...)
{
+ int save_errno = errno;
va_list args;
fprintf(stderr, "%s: ", program_name);
if (err_no != 0)
fprintf(stderr, " (%s)", strerror(err_no));
putc('\n', stderr);
+
+ errno = save_errno;
}
/* Sets program_name based on 'argv0'. Should be called at the beginning of
* byte in 'buf'. If 'ascii' is true then the corresponding ASCII characters
* are also rendered alongside. */
void
-hex_dump(FILE *stream, const void *buf_, size_t size,
- uintptr_t ofs, bool ascii)
+ofp_hex_dump(FILE *stream, const void *buf_, size_t size,
+ uintptr_t ofs, bool ascii)
{
const uint8_t *buf = buf_;
const size_t per_line = 16; /* Maximum bytes per line. */