curl tool: code moved to tool_*.[ch] files

1 files changed, 309 insertions, 0 deletions

diff --git a/src/tool_parsecfg.c b/src/tool_parsecfg.c
new file mode 100644
index 000000000..44d077e37
--- /dev/null
+++ b/src/tool_parsecfg.c
@@ -0,0 +1,309 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "setup.h"
+
+#include <curl/curl.h>
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "homedir.h"
+
+#include "tool_cfgable.h"
+#include "tool_getparam.h"
+#include "tool_helpers.h"
+#include "tool_msgs.h"
+#include "tool_parsecfg.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+#define CURLRC DOT_CHAR "curlrc"
+#define ISSEP(x) (((x) == '=') || ((x) == ':'))
+
+static const char *unslashquote(const char *line, char *param);
+static char *my_get_line(FILE *fp);
+
+/* return 0 on everything-is-fine, and non-zero otherwise */
+int parseconfig(const char *filename,
+                struct Configurable *config)
+{
+  int res;
+  FILE *file;
+  char filebuffer[512];
+  bool usedarg;
+  char *home;
+  int rc = 0;
+
+  if(!filename || !*filename) {
+    /* NULL or no file name attempts to load .curlrc from the homedir! */
+
+#ifndef __AMIGA__
+    filename = CURLRC;   /* sensible default */
+    home = homedir();    /* portable homedir finder */
+    if(home) {
+      if(strlen(home) < (sizeof(filebuffer) - strlen(CURLRC))) {
+        snprintf(filebuffer, sizeof(filebuffer),
+                 "%s%s%s", home, DIR_CHAR, CURLRC);
+
+#ifdef WIN32
+        /* Check if the file exists - if not, try CURLRC in the same
+         * directory as our executable
+         */
+        file = fopen(filebuffer, "r");
+        if(file != NULL) {
+          fclose(file);
+          filename = filebuffer;
+        }
+        else {
+          /* Get the filename of our executable. GetModuleFileName is
+           * already declared via inclusions done in setup header file.
+           * We assume that we are using the ASCII version here.
+           */
+          int n = GetModuleFileName(0, filebuffer, sizeof(filebuffer));
+          if(n > 0 && n < (int)sizeof(filebuffer)) {
+            /* We got a valid filename - get the directory part */
+            char *lastdirchar = strrchr(filebuffer, '\\');
+            if(lastdirchar) {
+              size_t remaining;
+              *lastdirchar = 0;
+              /* If we have enough space, build the RC filename */
+              remaining = sizeof(filebuffer) - strlen(filebuffer);
+              if(strlen(CURLRC) < remaining - 1) {
+                snprintf(lastdirchar, remaining,
+                         "%s%s", DIR_CHAR, CURLRC);
+                /* Don't bother checking if it exists - we do
+                 * that later
+                 */
+                filename = filebuffer;
+              }
+            }
+          }
+        }
+#else /* WIN32 */
+        filename = filebuffer;
+#endif /* WIN32 */
+      }
+      Curl_safefree(home); /* we've used it, now free it */
+    }
+
+# else /* __AMIGA__ */
+    /* On AmigaOS all the config files are into env:
+     */
+    filename = "ENV:" CURLRC;
+
+#endif
+  }
+
+  if(strcmp(filename,"-"))
+    file = fopen(filename, "r");
+  else
+    file = stdin;
+
+  if(file) {
+    char *line;
+    char *aline;
+    char *option;
+    char *param;
+    int lineno = 0;
+    bool alloced_param;
+
+    while(NULL != (aline = my_get_line(file))) {
+      lineno++;
+      line = aline;
+      alloced_param=FALSE;
+
+      /* line with # in the first non-blank column is a comment! */
+      while(*line && ISSPACE(*line))
+        line++;
+
+      switch(*line) {
+      case '#':
+      case '/':
+      case '\r':
+      case '\n':
+      case '*':
+      case '\0':
+        Curl_safefree(aline);
+        continue;
+      }
+
+      /* the option keywords starts here */
+      option = line;
+      while(*line && !ISSPACE(*line) && !ISSEP(*line))
+        line++;
+      /* ... and has ended here */
+
+      if(*line)
+        *line++ = '\0'; /* zero terminate, we have a local copy of the data */
+
+#ifdef DEBUG_CONFIG
+      fprintf(stderr, "GOT: %s\n", option);
+#endif
+
+      /* pass spaces and separator(s) */
+      while(*line && (ISSPACE(*line) || ISSEP(*line)))
+        line++;
+
+      /* the parameter starts here (unless quoted) */
+      if(*line == '\"') {
+        /* quoted parameter, do the quote dance */
+        line++;
+        param = malloc(strlen(line) + 1); /* parameter */
+        if(!param) {
+          /* out of memory */
+          Curl_safefree(aline);
+          rc = 1;
+          break;
+        }
+        alloced_param = TRUE;
+        (void)unslashquote(line, param);
+      }
+      else {
+        param = line; /* parameter starts here */
+        while(*line && !ISSPACE(*line))
+          line++;
+        *line = '\0'; /* zero terminate */
+      }
+
+      if(param && !*param) {
+        /* do this so getparameter can check for required parameters.
+           Otherwise it always thinks there's a parameter. */
+        if(alloced_param)
+          Curl_safefree(param);
+        param = NULL;
+      }
+
+#ifdef DEBUG_CONFIG
+      fprintf(stderr, "PARAM: \"%s\"\n",(param ? param : "(null)"));
+#endif
+      res = getparameter(option, param, &usedarg, config);
+
+      if(param && *param && !usedarg)
+        /* we passed in a parameter that wasn't used! */
+        res = PARAM_GOT_EXTRA_PARAMETER;
+
+      if(res != PARAM_OK) {
+        /* the help request isn't really an error */
+        if(!strcmp(filename, "-")) {
+          filename = (char *)"<stdin>";
+        }
+        if(PARAM_HELP_REQUESTED != res) {
+          const char *reason = param2text(res);
+          warnf(config, "%s:%d: warning: '%s' %s\n",
+                filename, lineno, option, reason);
+        }
+      }
+
+      if(alloced_param)
+        Curl_safefree(param);
+
+      Curl_safefree(aline);
+    }
+    if(file != stdin)
+      fclose(file);
+  }
+  else
+    rc = 1; /* couldn't open the file */
+
+  return rc;
+}
+
+/*
+ * Copies the string from line to the buffer at param, unquoting
+ * backslash-quoted characters and NUL-terminating the output string.
+ * Stops at the first non-backslash-quoted double quote character or the
+ * end of the input string. param must be at least as long as the input
+ * string.  Returns the pointer after the last handled input character.
+ */
+static const char *unslashquote(const char *line, char *param)
+{
+  while(*line && (*line != '\"')) {
+    if(*line == '\\') {
+      char out;
+      line++;
+
+      /* default is to output the letter after the backslash */
+      switch(out = *line) {
+      case '\0':
+        continue; /* this'll break out of the loop */
+      case 't':
+        out = '\t';
+        break;
+      case 'n':
+        out = '\n';
+        break;
+      case 'r':
+        out = '\r';
+        break;
+      case 'v':
+        out = '\v';
+        break;
+      }
+      *param++ = out;
+      line++;
+    }
+    else
+      *param++ = *line++;
+  }
+  *param = '\0'; /* always zero terminate */
+  return line;
+}
+
+/*
+ * Reads a line from the given file, ensuring is NUL terminated.
+ * The pointer must be freed by the caller.
+ * NULL is returned on an out of memory condition.
+ */
+static char *my_get_line(FILE *fp)
+{
+  char buf[4096];
+  char *nl = NULL;
+  char *retval = NULL;
+
+  do {
+    if(NULL == fgets(buf, sizeof(buf), fp))
+      break;
+    if(!retval) {
+      retval = strdup(buf);
+      if(!retval)
+        return NULL;
+    }
+    else {
+      char *ptr;
+      ptr = realloc(retval, strlen(retval) + strlen(buf) + 1);
+      if(!ptr) {
+        Curl_safefree(retval);
+        return NULL;
+      }
+      retval = ptr;
+      strcat(retval, buf);
+    }
+    nl = strchr(retval, '\n');
+  } while(!nl);
+
+  if(nl)
+    *nl = '\0';
+
+  return retval;
+}
+