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
voutf(struct GlobalConfig * config,const char * prefix,const char * fmt,va_list ap)36 static 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 */
notef(struct GlobalConfig * config,const char * fmt,...)81 void 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
warnf(struct GlobalConfig * config,const char * fmt,...)95 void 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
helpf(FILE * errors,const char * fmt,...)106 void 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