1 files changed, 201 insertions, 0 deletions
diff --git a/libbanshee/engine/util.c b/libbanshee/engine/util.c
new file mode 100644
index 00000000000..8989956b70a
--- /dev/null
+++ b/libbanshee/engine/util.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (c) 2000-2001
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <ctype.h>
+#include <math.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include "buffer.h"
+#include "util.h"
+
+/* Panic with a message */
+static void vfail(const char *fmt, va_list args) __attribute__((__noreturn__));
+
+static void vfail(const char *fmt, va_list args)
+{
+  vfprintf(stderr, fmt, args);
+  fflush(stdin);
+  fflush(stderr);
+  fflush(stdout);
+  sync();
+  fsync(STDIN_FILENO);
+  fsync(STDERR_FILENO);
+  fsync(STDOUT_FILENO);
+  abort();
+  while (1); /* Work around stupid gcc-2.96-85 bug */
+}
+
+/* Panic with a nice message */
+void __fail(const char *file, unsigned int line,
+	    const char *func __attribute__((unused)),
+	    const char *fmt, ...)
+{
+  va_list args;
+  va_start(args, fmt);
+  fprintf(stderr, "\n%s:%u ", file, line);
+  vfail(fmt, args);
+}
+
+#ifndef HAVE_VARIADIC_MACROS
+/* Panic with a not-quite-as-nice message */
+void fail(const char *fmt, ...)
+{
+  va_list args;
+  va_start(args, fmt);
+  vfail(fmt, args);
+}
+#endif
+
+void failure(const char *message)
+{
+  fprintf(stderr,message);
+  exit(1);
+}
+
+/* Concatenate 2 strings, allocating space in r for the result */
+char *rstrcat(region r, const char *s1, const char *s2)
+{
+  char *result = rarrayalloc(r, strlen(s1)+strlen(s2)+1, char);
+  result[0] = '\0';
+  strcat(result, s1);
+  strcat(result, s2);
+  return result;
+}
+
+/* Concatenate n strings, allocating space in r for the result.  The
+   last argument should be a null pointer. */
+char *rstrscat(region r, ...)
+{
+  char *result;
+  int len = 0;
+  const char *s;
+  va_list args;
+
+  va_start(args, r);
+  while ((s = va_arg(args, const char *)))
+    len += strlen(s);
+  result = rarrayalloc(r, len+1, char);
+  result[0] = '\0';
+
+  va_start(args, r);
+  while ((s = va_arg(args, const char *)))
+    strcat(result, s);
+
+  return result;
+}
+#if 0
+/* Convert an integer to a string, storing the result in r */
+const char *inttostr(region r, int i)
+{
+  char *result;
+  int width;
+
+  if (i == 0)
+    width = 1;
+  else
+    width = (int) (floor(log10(abs((double) i))) + 1);
+  if (i<0) width++;
+
+  printf("i=%d, width=%d\n", i, width);
+  assert(width >0);
+
+  result = rarrayalloc(r, width + 1, char);
+  if (snprintf(result, width + 1, "%d", i) == -1) {
+    printf("i=%d, width=%d\n", i, width);
+    fail ("inttostr width wrong\n");
+  }
+  return result;
+}
+#endif
+
+/* sprintf a string, allocating space in r for the result */
+char *rsprintf(region r, const char *fmt, ...)
+{
+  va_list args;
+
+  va_start(args, fmt);
+  return rvsprintf(r, fmt, args);
+}
+
+char *rvsprintf(region r, const char *fmt, va_list args)
+{
+  growbuf buf = growbuf_new(r, 100);
+  gvprintf(buf, fmt, args);
+  return growbuf_contents(buf);
+}
+
+/* Space for the ASCII representation of a pointer -- 2 hex chars per
+   byte, plus 3 chars for 0x prefix and trailing \0 */
+#define PTR_ASCII_SIZE  ((int) (3 + sizeof(void *)*2))
+
+/* Convert a pointer to an ascii string with leading 0x.  Re-uses
+   internal buffer. */
+char *ptr_to_ascii(void *ptr) {
+  static char addr[PTR_ASCII_SIZE];
+  int nchars;
+
+  nchars = snprintf(addr, PTR_ASCII_SIZE, "%p", ptr);
+  if (nchars == -1 || nchars >= PTR_ASCII_SIZE)
+    fail("Unable to convert ptr to ascii (need %d bytes, have %d)\n",
+	 nchars, PTR_ASCII_SIZE);
+  return addr;
+}
+
+/* Convert a pointer to an integer */
+long ptr_hash(void *ptr)
+{
+  return (long) ptr;
+}
+
+/* Return TRUE iff ptr1 == ptr2 */
+bool ptr_eq(void *ptr1, void *ptr2)
+{
+  return ptr1 == ptr2;
+}
+
+/* Return TRUE iff s1 == s2 */
+bool str_eq(const char *s1, const char *s2)
+{
+  return (strcmp(s1, s2) == 0);
+}
+
+/* A total ordering on pointers.  Returns 0 if ptr1 = ptr2, a value <0
+   if ptr1 < ptr2, or a value >0 if ptr1 > ptr2. */
+int ptr_cmp(const void *ptr1, const void *ptr2)
+{
+  return (char *) ptr1 - (char *) ptr2;
+}
+
+int min(int a, int b) { if (a < b) return a; else return b; }
+int max(int a, int b) { if (a < b) return b; else return a; }
+/* int abs(int a) { if (a < 0) return -a; else return a; } */