For #1537, #1282, use ST source code in SRS

trunk/3rdparty/st-srs/examples/error.c

@@ -0,0 +1,168 @@
+/*
+ * Portions created by SGI are Copyright (C) 2000 Silicon Graphics, Inc.
+ * 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 Silicon Graphics, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT
+ * HOLDERS AND 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 <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include "st.h"
+
+/*
+ * Simple error reporting functions.
+ * Suggested in W. Richard Stevens' "Advanced Programming in UNIX
+ * Environment".
+ */
+
+#define MAXLINE 4096  /* max line length */
+
+static void err_doit(int, int, const char *, va_list);
+
+
+/*
+ * Nonfatal error related to a system call.
+ * Print a message and return.
+ */
+void err_sys_report(int fd, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  err_doit(fd, 1, fmt, ap);
+  va_end(ap);
+}
+
+
+/*
+ * Fatal error related to a system call.
+ * Print a message and terminate.
+ */
+void err_sys_quit(int fd, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  err_doit(fd, 1, fmt, ap);
+  va_end(ap);
+  exit(1);
+}
+
+
+/*
+ * Fatal error related to a system call.
+ * Print a message, dump core, and terminate.
+ */
+void err_sys_dump(int fd, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  err_doit(fd, 1, fmt, ap);
+  va_end(ap);
+  abort();  /* dump core and terminate */
+  exit(1);  /* shouldn't get here */
+}
+
+
+/*
+ * Nonfatal error unrelated to a system call.
+ * Print a message and return.
+ */
+void err_report(int fd, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  err_doit(fd, 0, fmt, ap);
+  va_end(ap);
+}
+
+
+/*
+ * Fatal error unrelated to a system call.
+ * Print a message and terminate.
+ */
+void err_quit(int fd, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start(ap, fmt);
+  err_doit(fd, 0, fmt, ap);
+  va_end(ap);
+  exit(1);
+}
+
+
+/*
+ * Return a pointer to a string containing current time.
+ */
+char *err_tstamp(void)
+{
+  static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+                            "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+  static char str[32];
+  static time_t lastt = 0;
+  struct tm *tmp;
+  time_t currt = st_time();
+
+  if (currt == lastt)
+    return str;
+
+  tmp = localtime(&currt);
+  sprintf(str, "[%02d/%s/%d:%02d:%02d:%02d] ", tmp->tm_mday,
+          months[tmp->tm_mon], 1900 + tmp->tm_year, tmp->tm_hour,
+          tmp->tm_min, tmp->tm_sec);
+  lastt = currt;
+
+  return str;
+}
+
+
+/*
+ * Print a message and return to caller.
+ * Caller specifies "errnoflag".
+ */
+static void err_doit(int fd, int errnoflag, const char *fmt, va_list ap)
+{
+  int errno_save;
+  char buf[MAXLINE];
+
+  errno_save = errno;         /* value caller might want printed   */
+  strcpy(buf, err_tstamp());  /* prepend a message with time stamp */
+  vsprintf(buf + strlen(buf), fmt, ap);
+  if (errnoflag)
+    sprintf(buf + strlen(buf), ": %s\n", strerror(errno_save));
+  else
+    strcat(buf, "\n");
+  write(fd, buf, strlen(buf));
+  errno = errno_save;
+}
+