quickjs-tart

quickjs-based runtime for wallet-core logic
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tool_msgs.c (4032B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 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.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  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 #include "tool_setup.h"
     25 
     26 #include "tool_cfgable.h"
     27 #include "tool_msgs.h"
     28 #include "tool_cb_prg.h"
     29 #include "terminal.h"
     30 
     31 #include "memdebug.h" /* keep this as LAST include */
     32 
     33 #define WARN_PREFIX "Warning: "
     34 #define NOTE_PREFIX "Note: "
     35 #define ERROR_PREFIX "curl: "
     36 
     37 static void voutf(struct GlobalConfig *global,
     38                   const char *prefix,
     39                   const char *fmt,
     40                   va_list ap) CURL_PRINTF(3, 0);
     41 
     42 static void voutf(struct GlobalConfig *global,
     43                   const char *prefix,
     44                   const char *fmt,
     45                   va_list ap)
     46 {
     47   size_t width = (get_terminal_columns() - strlen(prefix));
     48   DEBUGASSERT(!strchr(fmt, '\n'));
     49   if(!global->silent) {
     50     size_t len;
     51     char *ptr;
     52     char *print_buffer;
     53 
     54     print_buffer = vaprintf(fmt, ap);
     55     if(!print_buffer)
     56       return;
     57     len = strlen(print_buffer);
     58 
     59     ptr = print_buffer;
     60     while(len > 0) {
     61       fputs(prefix, tool_stderr);
     62 
     63       if(len > width) {
     64         size_t cut = width-1;
     65 
     66         while(!ISBLANK(ptr[cut]) && cut) {
     67           cut--;
     68         }
     69         if(0 == cut)
     70           /* not a single cutting position was found, just cut it at the
     71              max text width then! */
     72           cut = width-1;
     73 
     74         (void)fwrite(ptr, cut + 1, 1, tool_stderr);
     75         fputs("\n", tool_stderr);
     76         ptr += cut + 1; /* skip the space too */
     77         len -= cut + 1;
     78       }
     79       else {
     80         fputs(ptr, tool_stderr);
     81         fputs("\n", tool_stderr);
     82         len = 0;
     83       }
     84     }
     85     curl_free(print_buffer);
     86   }
     87 }
     88 
     89 /*
     90  * Emit 'note' formatted message on configured 'errors' stream, if verbose was
     91  * selected.
     92  */
     93 void notef(struct GlobalConfig *global, const char *fmt, ...)
     94 {
     95   va_list ap;
     96   va_start(ap, fmt);
     97   if(global->tracetype)
     98     voutf(global, NOTE_PREFIX, fmt, ap);
     99   va_end(ap);
    100 }
    101 
    102 /*
    103  * Emit warning formatted message on configured 'errors' stream unless
    104  * mute (--silent) was selected.
    105  */
    106 void warnf(struct GlobalConfig *global, const char *fmt, ...)
    107 {
    108   va_list ap;
    109   va_start(ap, fmt);
    110   voutf(global, WARN_PREFIX, fmt, ap);
    111   va_end(ap);
    112 }
    113 
    114 /*
    115  * Emit help formatted message on given stream. This is for errors with or
    116  * related to command line arguments.
    117  */
    118 void helpf(FILE *errors, const char *fmt, ...)
    119 {
    120   if(fmt) {
    121     va_list ap;
    122     va_start(ap, fmt);
    123     DEBUGASSERT(!strchr(fmt, '\n'));
    124     fputs("curl: ", errors); /* prefix it */
    125     vfprintf(errors, fmt, ap);
    126     va_end(ap);
    127     fputs("\n", errors); /* newline it */
    128   }
    129   fprintf(errors, "curl: try 'curl --help' "
    130 #ifdef USE_MANUAL
    131           "or 'curl --manual' "
    132 #endif
    133           "for more information\n");
    134 }
    135 
    136 /*
    137  * Emit error message on error stream if not muted. When errors are not tied
    138  * to command line arguments, use helpf() for such errors.
    139  */
    140 void errorf(struct GlobalConfig *global, const char *fmt, ...)
    141 {
    142   if(!global->silent || global->showerror) {
    143     va_list ap;
    144     va_start(ap, fmt);
    145     voutf(global, ERROR_PREFIX, fmt, ap);
    146     va_end(ap);
    147   }
    148 }