1 /* General utility routines for the remote server for GDB.
2    Copyright 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003
3    Free Software Foundation, Inc.
4 
5    This file is part of GDB.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 59 Temple Place - Suite 330,
20    Boston, MA 02111-1307, USA.  */
21 
22 #include "server.h"
23 #include <stdio.h>
24 #include <string.h>
25 
26 /* Generally useful subroutines used throughout the program.  */
27 
28 /* Print the system error message for errno, and also mention STRING
29    as the file name for which the error was encountered.
30    Then return to command level.  */
31 
32 void
33 perror_with_name (char *string)
34 {
35 #ifndef STDC_HEADERS
36   extern int errno;
37 #endif
38   const char *err;
39   char *combined;
40 
41   err = strerror (errno);
42   if (err == NULL)
43     err = "unknown error";
44 
45   combined = (char *) alloca (strlen (err) + strlen (string) + 3);
46   strcpy (combined, string);
47   strcat (combined, ": ");
48   strcat (combined, err);
49 
50   error ("%s.", combined);
51 }
52 
53 /* Print an error message and return to command level.
54    STRING is the error message, used as a fprintf string,
55    and ARG is passed as an argument to it.  */
56 
57 void
58 error (const char *string,...)
59 {
60   extern jmp_buf toplevel;
61   va_list args;
62   va_start (args, string);
63   fflush (stdout);
64   vfprintf (stderr, string, args);
65   fprintf (stderr, "\n");
66   longjmp (toplevel, 1);
67 }
68 
69 /* Print an error message and exit reporting failure.
70    This is for a error that we cannot continue from.
71    STRING and ARG are passed to fprintf.  */
72 
73 /* VARARGS */
74 void
75 fatal (const char *string,...)
76 {
77   va_list args;
78   va_start (args, string);
79   fprintf (stderr, "gdb: ");
80   vfprintf (stderr, string, args);
81   fprintf (stderr, "\n");
82   va_end (args);
83   exit (1);
84 }
85 
86 /* VARARGS */
87 void
88 warning (const char *string,...)
89 {
90   va_list args;
91   va_start (args, string);
92   fprintf (stderr, "gdb: ");
93   vfprintf (stderr, string, args);
94   fprintf (stderr, "\n");
95   va_end (args);
96 }
97