1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2015, 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 https://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 NOTE_PREFIX "Note: "
35
36static void voutf(struct GlobalConfig *config,
37                  const char *prefix,
38                  const char *fmt,
39                  va_list ap)
40{
41  size_t width = (79 - (int)strlen(prefix));
42  if(!config->mute) {
43    size_t len;
44    char *ptr;
45    char print_buffer[256];
46
47    len = vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
48
49    ptr = print_buffer;
50    while(len > 0) {
51      fputs(prefix, config->errors);
52
53      if(len > width) {
54        size_t cut = width-1;
55
56        while(!ISSPACE(ptr[cut]) && cut) {
57          cut--;
58        }
59        if(0 == cut)
60          /* not a single cutting position was found, just cut it at the
61             max text width then! */
62          cut = width-1;
63
64        (void)fwrite(ptr, cut + 1, 1, config->errors);
65        fputs("\n", config->errors);
66        ptr += cut+1; /* skip the space too */
67        len -= cut;
68      }
69      else {
70        fputs(ptr, config->errors);
71        len = 0;
72      }
73    }
74  }
75}
76
77/*
78 * Emit 'note' formatted message on configured 'errors' stream, if verbose was
79 * selected.
80 */
81void notef(struct GlobalConfig *config, const char *fmt, ...)
82{
83  va_list ap;
84  va_start(ap, fmt);
85  if(config->tracetype)
86    voutf(config, NOTE_PREFIX, fmt, ap);
87  va_end(ap);
88}
89
90/*
91 * Emit warning formatted message on configured 'errors' stream unless
92 * mute (--silent) was selected.
93 */
94
95void warnf(struct GlobalConfig *config, const char *fmt, ...)
96{
97  va_list ap;
98  va_start(ap, fmt);
99  voutf(config, WARN_PREFIX, fmt, ap);
100  va_end(ap);
101}
102/*
103 * Emit help formatted message on given stream.
104 */
105
106void helpf(FILE *errors, const char *fmt, ...)
107{
108  va_list ap;
109  if(fmt) {
110    va_start(ap, fmt);
111    fputs("curl: ", errors); /* prefix it */
112    vfprintf(errors, fmt, ap);
113    va_end(ap);
114  }
115  fprintf(errors, "curl: try 'curl --help' "
116#ifdef USE_MANUAL
117          "or 'curl --manual' "
118#endif
119          "for more information\n");
120}
121
122