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annotate src/logfile.c @ 32685:3868e8035b8c v9.0.1673

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patch 9.0.1673: cannot produce a status 418 or 503 message Commit: https://github.com/vim/vim/commit/80adaa8ae8398403ca4e9797219ea9a501fc76a5 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jul 7 18:57:40 2023 +0100 patch 9.0.1673: cannot produce a status 418 or 503 message Problem: Cannot produce a status 418 or 503 message. Solution: Add err_teapot().
author Bram Moolenaar <Bram@vim.org>
date Fri, 07 Jul 2023 20:00:05 +0200
parents 533e36e02a68
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 */
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8
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9 /*
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10 * Implements logging. Originally intended for the channel feature, which is
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11 * why the "ch_" prefix is used. Also useful for any kind of low-level and
32244
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12 * async debugging.
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13 */
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14
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15 #include "vim.h"
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16
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17 #if defined(FEAT_EVAL) || defined(PROTO)
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18
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19 // Log file opened with ch_logfile().
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20 static FILE *log_fd = NULL;
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21 static char_u *log_name = NULL;
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22 #ifdef FEAT_RELTIME
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23 static proftime_T log_start;
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24 #endif
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25
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26 void
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27 ch_logfile(char_u *fname, char_u *opt)
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28 {
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29 FILE *file = NULL;
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30 char *mode = "a";
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31
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32 if (log_fd != NULL)
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33 {
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34 if (*fname != NUL)
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35 ch_log(NULL, "closing this logfile, opening %s", fname);
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36 else
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37 ch_log(NULL, "closing logfile %s", log_name);
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38 fclose(log_fd);
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39 }
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40
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41 // The "a" flag overrules the "w" flag.
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42 if (vim_strchr(opt, 'a') == NULL && vim_strchr(opt, 'w') != NULL)
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43 mode = "w";
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44 ch_log_output = vim_strchr(opt, 'o') != NULL ? LOG_ALWAYS : FALSE;
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45
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46 if (*fname != NUL)
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47 {
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48 file = fopen((char *)fname, mode);
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49 if (file == NULL)
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50 {
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51 semsg(_(e_cant_open_file_str), fname);
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52 return;
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53 }
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54 vim_free(log_name);
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55 log_name = vim_strsave(fname);
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56 }
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57 log_fd = file;
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58
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59 if (log_fd != NULL)
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60 {
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61 fprintf(log_fd, "==== start log session %s ====\n",
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62 get_ctime(time(NULL), FALSE));
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63 // flush now, if fork/exec follows it could be written twice
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64 fflush(log_fd);
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65 #ifdef FEAT_RELTIME
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66 profile_start(&log_start);
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67 #endif
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68 }
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69 }
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70
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71 int
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72 ch_log_active(void)
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73 {
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74 return log_fd != NULL;
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75 }
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76
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77 static void
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78 ch_log_lead(const char *what, channel_T *ch UNUSED, ch_part_T part UNUSED)
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79 {
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80 if (log_fd == NULL)
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81 return;
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82
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83 #ifdef FEAT_RELTIME
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84 proftime_T log_now;
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85
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86 profile_start(&log_now);
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87 profile_sub(&log_now, &log_start);
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88 fprintf(log_fd, "%s ", profile_msg(&log_now));
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89 #endif
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90 #ifdef FEAT_JOB_CHANNEL
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91 if (ch != NULL)
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92 {
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93 if (part < PART_COUNT)
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94 fprintf(log_fd, "%son %d(%s): ", what, ch->ch_id, ch_part_names[part]);
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95 else
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96 fprintf(log_fd, "%son %d: ", what, ch->ch_id);
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97 }
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98 else
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99 #endif
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100 fprintf(log_fd, "%s: ", what);
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101 }
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102
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103 #ifndef PROTO // prototype is in proto.h
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104 void
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105 ch_log(channel_T *ch, const char *fmt, ...)
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106 {
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107 if (log_fd == NULL)
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108 return;
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109
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110 va_list ap;
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111
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112 ch_log_lead("", ch, PART_COUNT);
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113 va_start(ap, fmt);
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114 vfprintf(log_fd, fmt, ap);
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115 va_end(ap);
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116 fputc('\n', log_fd);
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117 fflush(log_fd);
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118 did_repeated_msg = 0;
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119 }
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120
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121 void
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122 ch_error(channel_T *ch, const char *fmt, ...)
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123 {
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124 if (log_fd == NULL)
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125 return;
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126
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127 va_list ap;
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128
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129 ch_log_lead("ERR ", ch, PART_COUNT);
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130 va_start(ap, fmt);
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131 vfprintf(log_fd, fmt, ap);
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132 va_end(ap);
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133 fputc('\n', log_fd);
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134 fflush(log_fd);
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135 did_repeated_msg = 0;
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136 }
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137 #endif
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138
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139 #if defined(FEAT_JOB_CHANNEL) || defined(PROTO)
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140 /*
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141 * Log a message "buf[len]" for channel "ch" part "part".
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142 * Only to be called when ch_log_active() returns TRUE.
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143 */
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144 void
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145 ch_log_literal(
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146 char *lead,
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147 channel_T *ch,
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148 ch_part_T part,
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149 char_u *buf,
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150 int len)
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151 {
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152 ch_log_lead(lead, ch, part);
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153 fprintf(log_fd, "'");
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154 vim_ignored = (int)fwrite(buf, len, 1, log_fd);
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155 fprintf(log_fd, "'\n");
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156 fflush(log_fd);
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157 }
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158 #endif
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159
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160 /*
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161 * "ch_log()" function
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162 */
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163 void
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164 f_ch_log(typval_T *argvars, typval_T *rettv UNUSED)
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165 {
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166 char_u *msg;
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167 channel_T *channel = NULL;
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168
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169 if (in_vim9script()
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170 && (check_for_string_arg(argvars, 0) == FAIL
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171 || check_for_opt_chan_or_job_arg(argvars, 1) == FAIL))
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172 return;
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173
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174 msg = tv_get_string(&argvars[0]);
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175 #if defined(FEAT_JOB_CHANNEL)
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176 if (argvars[1].v_type != VAR_UNKNOWN)
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177 channel = get_channel_arg(&argvars[1], FALSE, FALSE, 0);
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178 #endif
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179
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180 // Prepend "ch_log()" to make it easier to find these entries in the
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181 // logfile.
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182 ch_log(channel, "ch_log(): %s", msg);
31287
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183 }
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184
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185 /*
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186 * "ch_logfile()" function
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187 */
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188 void
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189 f_ch_logfile(typval_T *argvars, typval_T *rettv UNUSED)
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190 {
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191 char_u *fname;
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192 char_u *opt = (char_u *)"";
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193 char_u buf[NUMBUFLEN];
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194
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195 // Don't open a file in restricted mode.
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196 if (check_restricted() || check_secure())
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197 return;
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198
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199 if (in_vim9script()
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200 && (check_for_string_arg(argvars, 0) == FAIL
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201 || check_for_opt_string_arg(argvars, 1) == FAIL))
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202 return;
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203
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204 fname = tv_get_string(&argvars[0]);
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205 if (argvars[1].v_type == VAR_STRING)
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206 opt = tv_get_string_buf(&argvars[1], buf);
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207 ch_logfile(fname, opt);
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208 }
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209
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210 #endif // FEAT_EVAL