1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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.
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.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
22 #include "tool_setup.h"
24 #define ENABLE_CURLX_PRINTF
25 /* use our own printf() functions */
28 #include "tool_cfgable.h"
29 #include "tool_getparam.h"
30 #include "tool_helpers.h"
31 #include "tool_homedir.h"
32 #include "tool_msgs.h"
33 #include "tool_parsecfg.h"
35 #include "memdebug.h" /* keep this as LAST include */
37 #define CURLRC DOT_CHAR "curlrc"
39 /* only acknowledge colon or equals as separators if the option was not
40 specified with an initial dash! */
41 #define ISSEP(x,dash) (!dash && (((x) == '=') || ((x) == ':')))
43 static const char *unslashquote(const char *line, char *param);
44 static char *my_get_line(FILE *fp);
46 /* return 0 on everything-is-fine, and non-zero otherwise */
47 int parseconfig(const char *filename, struct OperationConfig *config)
56 if(!filename || !*filename) {
57 /* NULL or no file name attempts to load .curlrc from the homedir! */
60 filename = CURLRC; /* sensible default */
61 home = homedir(); /* portable homedir finder */
63 if(strlen(home) < (sizeof(filebuffer) - strlen(CURLRC))) {
64 snprintf(filebuffer, sizeof(filebuffer),
65 "%s%s%s", home, DIR_CHAR, CURLRC);
68 /* Check if the file exists - if not, try CURLRC in the same
69 * directory as our executable
71 file = fopen(filebuffer, "r");
74 filename = filebuffer;
77 /* Get the filename of our executable. GetModuleFileName is
78 * already declared via inclusions done in setup header file.
79 * We assume that we are using the ASCII version here.
81 int n = GetModuleFileName(0, filebuffer, sizeof(filebuffer));
82 if(n > 0 && n < (int)sizeof(filebuffer)) {
83 /* We got a valid filename - get the directory part */
84 char *lastdirchar = strrchr(filebuffer, '\\');
88 /* If we have enough space, build the RC filename */
89 remaining = sizeof(filebuffer) - strlen(filebuffer);
90 if(strlen(CURLRC) < remaining - 1) {
91 snprintf(lastdirchar, remaining,
92 "%s%s", DIR_CHAR, CURLRC);
93 /* Don't bother checking if it exists - we do
96 filename = filebuffer;
102 filename = filebuffer;
105 Curl_safefree(home); /* we've used it, now free it */
108 # else /* __AMIGA__ */
109 /* On AmigaOS all the config files are into env:
111 filename = "ENV:" CURLRC;
116 if(strcmp(filename,"-"))
117 file = fopen(filename, "r");
130 while(NULL != (aline = my_get_line(file))) {
135 /* line with # in the first non-blank column is a comment! */
136 while(*line && ISSPACE(*line))
146 Curl_safefree(aline);
150 /* the option keywords starts here */
153 /* the option starts with a dash? */
154 dashed_option = option[0]=='-'?TRUE:FALSE;
156 while(*line && !ISSPACE(*line) && !ISSEP(*line, dashed_option))
158 /* ... and has ended here */
161 *line++ = '\0'; /* zero terminate, we have a local copy of the data */
164 fprintf(stderr, "GOT: %s\n", option);
167 /* pass spaces and separator(s) */
168 while(*line && (ISSPACE(*line) || ISSEP(*line, dashed_option)))
171 /* the parameter starts here (unless quoted) */
173 /* quoted parameter, do the quote dance */
175 param = malloc(strlen(line) + 1); /* parameter */
178 Curl_safefree(aline);
182 alloced_param = TRUE;
183 (void)unslashquote(line, param);
186 param = line; /* parameter starts here */
187 while(*line && !ISSPACE(*line))
189 *line = '\0'; /* zero terminate */
191 /* to detect mistakes better, see if there's data following */
193 /* pass all spaces */
194 while(*line && ISSPACE(*line))
201 case '#': /* comment */
204 warnf(config, "%s:%d: warning: '%s' uses unquoted white space in the"
205 " line that may cause side-effects!\n",
206 filename, lineno, option);
210 if(param && !*param) {
211 /* do this so getparameter can check for required parameters.
212 Otherwise it always thinks there's a parameter. */
214 Curl_safefree(param);
219 fprintf(stderr, "PARAM: \"%s\"\n",(param ? param : "(null)"));
221 res = getparameter(option, param, &usedarg, config);
223 if(param && *param && !usedarg)
224 /* we passed in a parameter that wasn't used! */
225 res = PARAM_GOT_EXTRA_PARAMETER;
227 if(res != PARAM_OK) {
228 /* the help request isn't really an error */
229 if(!strcmp(filename, "-")) {
230 filename = (char *)"<stdin>";
232 if(res != PARAM_HELP_REQUESTED &&
233 res != PARAM_MANUAL_REQUESTED &&
234 res != PARAM_VERSION_INFO_REQUESTED &&
235 res != PARAM_ENGINES_REQUESTED) {
236 const char *reason = param2text(res);
237 warnf(config, "%s:%d: warning: '%s' %s\n",
238 filename, lineno, option, reason);
243 Curl_safefree(param);
245 Curl_safefree(aline);
251 rc = 1; /* couldn't open the file */
257 * Copies the string from line to the buffer at param, unquoting
258 * backslash-quoted characters and NUL-terminating the output string.
259 * Stops at the first non-backslash-quoted double quote character or the
260 * end of the input string. param must be at least as long as the input
261 * string. Returns the pointer after the last handled input character.
263 static const char *unslashquote(const char *line, char *param)
265 while(*line && (*line != '\"')) {
270 /* default is to output the letter after the backslash */
271 switch(out = *line) {
273 continue; /* this'll break out of the loop */
293 *param = '\0'; /* always zero terminate */
298 * Reads a line from the given file, ensuring is NUL terminated.
299 * The pointer must be freed by the caller.
300 * NULL is returned on an out of memory condition.
302 static char *my_get_line(FILE *fp)
309 if(NULL == fgets(buf, sizeof(buf), fp))
318 size_t linelen = strlen(line);
319 ptr = realloc(line, linelen + strlen(buf) + 1);
325 strcpy(&line[linelen], buf);
327 nl = strchr(line, '\n');