1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22#include "tool_setup.h"
23
24#define ENABLE_CURLX_PRINTF
25/* use our own printf() functions */
26#include "curlx.h"
27
28#include "tool_cfgable.h"
29#include "tool_msgs.h"
30
31#include "memdebug.h" /* keep this as LAST include */
32
33#define WARN_PREFIX "Warning: "
34#define WARN_TEXTWIDTH (79 - (int)strlen(WARN_PREFIX))
35
36/*
37 * Emit warning formatted message on configured 'errors' stream unless
38 * mute (--silent) was selected.
39 */
40
41void warnf(struct OperationConfig *config, const char *fmt, ...)
42{
43  if(!config->global->mute) {
44    va_list ap;
45    int len;
46    char *ptr;
47    char print_buffer[256];
48
49    va_start(ap, fmt);
50    len = vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
51    va_end(ap);
52
53    ptr = print_buffer;
54    while(len > 0) {
55      fputs(WARN_PREFIX, config->global->errors);
56
57      if(len > (int)WARN_TEXTWIDTH) {
58        int cut = WARN_TEXTWIDTH-1;
59
60        while(!ISSPACE(ptr[cut]) && cut) {
61          cut--;
62        }
63        if(0 == cut)
64          /* not a single cutting position was found, just cut it at the
65             max text width then! */
66          cut = WARN_TEXTWIDTH-1;
67
68        (void)fwrite(ptr, cut + 1, 1, config->global->errors);
69        fputs("\n", config->global->errors);
70        ptr += cut+1; /* skip the space too */
71        len -= cut;
72      }
73      else {
74        fputs(ptr, config->global->errors);
75        len = 0;
76      }
77    }
78  }
79}
80
81/*
82 * Emit help formatted message on given stream.
83 */
84
85void helpf(FILE *errors, const char *fmt, ...)
86{
87  va_list ap;
88  if(fmt) {
89    va_start(ap, fmt);
90    fputs("curl: ", errors); /* prefix it */
91    vfprintf(errors, fmt, ap);
92    va_end(ap);
93  }
94  fprintf(errors, "curl: try 'curl --help' "
95#ifdef USE_MANUAL
96          "or 'curl --manual' "
97#endif
98          "for more information\n");
99}
100
101