1 | /***************************************************************************
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2 | * _ _ ____ _
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3 | * Project ___| | | | _ \| |
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4 | * / __| | | | |_) | |
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5 | * | (__| |_| | _ <| |___
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6 | * \___|\___/|_| \_\_____|
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7 | *
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8 | * Copyright (C) 1998 - 2015, 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 | *
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10 | * This software is licensed as described in the file COPYING, which
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11 | * you should have received as part of this distribution. The terms
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12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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13 | *
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14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 | * copies of the Software, and permit persons to whom the Software is
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16 | * furnished to do so, under the terms of the COPYING file.
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17 | *
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18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 | * KIND, either express or implied.
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20 | *
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21 | ***************************************************************************/
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22 | #include "tool_setup.h"
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23 |
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24 | #define ENABLE_CURLX_PRINTF
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25 | /* use our own printf() functions */
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26 | #include "curlx.h"
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27 |
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28 | #include "tool_cfgable.h"
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29 | #include "tool_msgs.h"
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30 |
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31 | #include "memdebug.h" /* keep this as LAST include */
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32 |
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33 | #define WARN_PREFIX "Warning: "
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34 | #define NOTE_PREFIX "Note: "
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35 |
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36 | static void voutf(struct GlobalConfig *config,
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37 | const char *prefix,
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38 | const char *fmt,
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39 | va_list ap)
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40 | {
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41 | size_t width = (79 - strlen(prefix));
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42 | if(!config->mute) {
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43 | size_t len;
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44 | char *ptr;
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45 | char print_buffer[256];
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46 |
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47 | len = vsnprintf(print_buffer, sizeof(print_buffer), fmt, ap);
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48 |
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49 | ptr = print_buffer;
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50 | while(len > 0) {
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51 | fputs(prefix, config->errors);
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52 |
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53 | if(len > width) {
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54 | size_t cut = width-1;
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55 |
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56 | while(!ISSPACE(ptr[cut]) && cut) {
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57 | cut--;
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58 | }
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59 | if(0 == cut)
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60 | /* not a single cutting position was found, just cut it at the
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61 | max text width then! */
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62 | cut = width-1;
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63 |
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64 | (void)fwrite(ptr, cut + 1, 1, config->errors);
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65 | fputs("\n", config->errors);
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66 | ptr += cut + 1; /* skip the space too */
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67 | len -= cut;
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68 | }
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69 | else {
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70 | fputs(ptr, config->errors);
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71 | len = 0;
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72 | }
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73 | }
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74 | }
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75 | }
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76 |
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77 | /*
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78 | * Emit 'note' formatted message on configured 'errors' stream, if verbose was
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79 | * selected.
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80 | */
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81 | void notef(struct GlobalConfig *config, const char *fmt, ...)
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82 | {
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83 | va_list ap;
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84 | va_start(ap, fmt);
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85 | if(config->tracetype)
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86 | voutf(config, NOTE_PREFIX, fmt, ap);
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87 | va_end(ap);
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88 | }
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89 |
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90 | /*
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91 | * Emit warning formatted message on configured 'errors' stream unless
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92 | * mute (--silent) was selected.
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93 | */
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94 |
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95 | void warnf(struct GlobalConfig *config, const char *fmt, ...)
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96 | {
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97 | va_list ap;
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98 | va_start(ap, fmt);
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99 | voutf(config, WARN_PREFIX, fmt, ap);
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100 | va_end(ap);
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101 | }
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102 | /*
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103 | * Emit help formatted message on given stream.
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104 | */
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105 |
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106 | void helpf(FILE *errors, const char *fmt, ...)
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107 | {
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108 | va_list ap;
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109 | if(fmt) {
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110 | va_start(ap, fmt);
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111 | fputs("curl: ", errors); /* prefix it */
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112 | vfprintf(errors, fmt, ap);
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113 | va_end(ap);
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114 | }
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115 | fprintf(errors, "curl: try 'curl --help' "
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116 | #ifdef USE_MANUAL
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117 | "or 'curl --manual' "
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118 | #endif
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119 | "for more information\n");
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120 | }
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121 |
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