1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2019, 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 - strlen(prefix));
42 if(!config->mute) {
43 size_t len;
44 char *ptr;
45 char *print_buffer;
46
47 print_buffer = curlx_mvaprintf(fmt, ap);
48 if(!print_buffer)
49 return;
50 len = strlen(print_buffer);
51
52 ptr = print_buffer;
53 while(len > 0) {
54 fputs(prefix, config->errors);
55
56 if(len > width) {
57 size_t cut = width-1;
58
59 while(!ISSPACE(ptr[cut]) && cut) {
60 cut--;
61 }
62 if(0 == cut)
63 /* not a single cutting position was found, just cut it at the
64 max text width then! */
65 cut = width-1;
66
67 (void)fwrite(ptr, cut + 1, 1, config->errors);
68 fputs("\n", config->errors);
69 ptr += cut + 1; /* skip the space too */
70 len -= cut + 1;
71 }
72 else {
73 fputs(ptr, config->errors);
74 len = 0;
75 }
76 }
77 curl_free(print_buffer);
78 }
79}
80
81/*
82 * Emit 'note' formatted message on configured 'errors' stream, if verbose was
83 * selected.
84 */
85void notef(struct GlobalConfig *config, const char *fmt, ...)
86{
87 va_list ap;
88 va_start(ap, fmt);
89 if(config->tracetype)
90 voutf(config, NOTE_PREFIX, fmt, ap);
91 va_end(ap);
92}
93
94/*
95 * Emit warning formatted message on configured 'errors' stream unless
96 * mute (--silent) was selected.
97 */
98
99void warnf(struct GlobalConfig *config, const char *fmt, ...)
100{
101 va_list ap;
102 va_start(ap, fmt);
103 voutf(config, WARN_PREFIX, fmt, ap);
104 va_end(ap);
105}
106/*
107 * Emit help formatted message on given stream.
108 */
109
110void helpf(FILE *errors, const char *fmt, ...)
111{
112 if(fmt) {
113 va_list ap;
114 va_start(ap, fmt);
115 fputs("curl: ", errors); /* prefix it */
116 vfprintf(errors, fmt, ap);
117 va_end(ap);
118 }
119 fprintf(errors, "curl: try 'curl --help' "
120#ifdef USE_MANUAL
121 "or 'curl --manual' "
122#endif
123 "for more information\n");
124}
125