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 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
warnf(struct GlobalConfig * config,const char * fmt,...)41 void warnf(struct GlobalConfig *config, const char *fmt, ...)
42 {
43 if(!config->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->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->errors);
69 fputs("\n", config->errors);
70 ptr += cut+1; /* skip the space too */
71 len -= cut;
72 }
73 else {
74 fputs(ptr, config->errors);
75 len = 0;
76 }
77 }
78 }
79 }
80
81 /*
82 * Emit help formatted message on given stream.
83 */
84
helpf(FILE * errors,const char * fmt,...)85 void 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