[Feature][ZXW-88]merge P50 version

Only Configure: No
Affected branch: master
Affected module: unknown
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I34667719d9e0e7e29e8e4368848601cde0a48408
diff --git a/ap/lib/libcurl/curl-7.86.0/src/tool_parsecfg.c b/ap/lib/libcurl/curl-7.86.0/src/tool_parsecfg.c
new file mode 100755
index 0000000..a166757
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/src/tool_parsecfg.c
@@ -0,0 +1,351 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2022, 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 https://curl.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.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+#include "tool_setup.h"
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "tool_cfgable.h"
+#include "tool_getparam.h"
+#include "tool_helpers.h"
+#include "tool_findfile.h"
+#include "tool_msgs.h"
+#include "tool_parsecfg.h"
+#include "dynbuf.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+/* only acknowledge colon or equals as separators if the option was not
+   specified with an initial dash! */
+#define ISSEP(x,dash) (!dash && (((x) == '=') || ((x) == ':')))
+
+static const char *unslashquote(const char *line, char *param);
+
+#define MAX_CONFIG_LINE_LENGTH (100*1024)
+static bool my_get_line(FILE *fp, struct curlx_dynbuf *, bool *error);
+
+#ifdef WIN32
+static FILE *execpath(const char *filename, char **pathp)
+{
+  static char filebuffer[512];
+  /* 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.
+   */
+  unsigned long len = GetModuleFileNameA(0, filebuffer, sizeof(filebuffer));
+  if(len > 0 && len < 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(filename) < remaining - 1) {
+        FILE *f;
+        msnprintf(lastdirchar, remaining, "%s%s", DIR_CHAR, filename);
+        *pathp = filebuffer;
+        f = fopen(filebuffer, FOPEN_READTEXT);
+        return f;
+      }
+    }
+  }
+
+  return NULL;
+}
+#endif
+
+
+/* return 0 on everything-is-fine, and non-zero otherwise */
+int parseconfig(const char *filename, struct GlobalConfig *global)
+{
+  FILE *file = NULL;
+  bool usedarg = FALSE;
+  int rc = 0;
+  struct OperationConfig *operation = global->last;
+  char *pathalloc = NULL;
+
+  if(!filename) {
+    /* NULL means load .curlrc from homedir! */
+    char *curlrc = findfile(".curlrc", CURLRC_DOTSCORE);
+    if(curlrc) {
+      file = fopen(curlrc, FOPEN_READTEXT);
+      if(!file) {
+        free(curlrc);
+        return 1;
+      }
+      filename = pathalloc = curlrc;
+    }
+#ifdef WIN32 /* Windows */
+    else {
+      char *fullp;
+      /* check for .curlrc then _curlrc in the dir of the executable */
+      file = execpath(".curlrc", &fullp);
+      if(!file)
+        file = execpath("_curlrc", &fullp);
+      if(file)
+        /* this is the filename we read from */
+        filename = fullp;
+    }
+#endif
+  }
+  else {
+    if(strcmp(filename, "-"))
+      file = fopen(filename, FOPEN_READTEXT);
+    else
+      file = stdin;
+  }
+
+  if(file) {
+    char *line;
+    char *option;
+    char *param;
+    int lineno = 0;
+    bool dashed_option;
+    struct curlx_dynbuf buf;
+    bool fileerror;
+    curlx_dyn_init(&buf, MAX_CONFIG_LINE_LENGTH);
+    DEBUGASSERT(filename);
+
+    while(my_get_line(file, &buf, &fileerror)) {
+      int res;
+      bool alloced_param = FALSE;
+      lineno++;
+      line = curlx_dyn_ptr(&buf);
+      if(!line) {
+        rc = 1; /* out of memory */
+        break;
+      }
+
+      /* 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':
+        curlx_dyn_reset(&buf);
+        continue;
+      }
+
+      /* the option keywords starts here */
+      option = line;
+
+      /* the option starts with a dash? */
+      dashed_option = option[0]=='-'?TRUE:FALSE;
+
+      while(*line && !ISSPACE(*line) && !ISSEP(*line, dashed_option))
+        line++;
+      /* ... and has ended here */
+
+      if(*line)
+        *line++ = '\0'; /* null-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, dashed_option)))
+        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 */
+          rc = 1;
+          break;
+        }
+        alloced_param = TRUE;
+        (void)unslashquote(line, param);
+      }
+      else {
+        param = line; /* parameter starts here */
+        while(*line && !ISSPACE(*line))
+          line++;
+
+        if(*line) {
+          *line = '\0'; /* null-terminate */
+
+          /* to detect mistakes better, see if there's data following */
+          line++;
+          /* pass all spaces */
+          while(*line && ISSPACE(*line))
+            line++;
+
+          switch(*line) {
+          case '\0':
+          case '\r':
+          case '\n':
+          case '#': /* comment */
+            break;
+          default:
+            warnf(operation->global, "%s:%d: warning: '%s' uses unquoted "
+                  "whitespace in the line that may cause side-effects!\n",
+                  filename, lineno, option);
+          }
+        }
+        if(!*param)
+          /* do this so getparameter can check for required parameters.
+             Otherwise it always thinks there's a parameter. */
+          param = NULL;
+      }
+
+#ifdef DEBUG_CONFIG
+      fprintf(stderr, "PARAM: \"%s\"\n",(param ? param : "(null)"));
+#endif
+      res = getparameter(option, param, &usedarg, global, operation);
+      operation = global->last;
+
+      if(!res && param && *param && !usedarg)
+        /* we passed in a parameter that wasn't used! */
+        res = PARAM_GOT_EXTRA_PARAMETER;
+
+      if(res == PARAM_NEXT_OPERATION) {
+        if(operation->url_list && operation->url_list->url) {
+          /* Allocate the next config */
+          operation->next = malloc(sizeof(struct OperationConfig));
+          if(operation->next) {
+            /* Initialise the newly created config */
+            config_init(operation->next);
+
+            /* Set the global config pointer */
+            operation->next->global = global;
+
+            /* Update the last operation pointer */
+            global->last = operation->next;
+
+            /* Move onto the new config */
+            operation->next->prev = operation;
+            operation = operation->next;
+          }
+          else
+            res = PARAM_NO_MEM;
+        }
+      }
+
+      if(res != PARAM_OK && res != PARAM_NEXT_OPERATION) {
+        /* the help request isn't really an error */
+        if(!strcmp(filename, "-")) {
+          filename = "<stdin>";
+        }
+        if(res != PARAM_HELP_REQUESTED &&
+           res != PARAM_MANUAL_REQUESTED &&
+           res != PARAM_VERSION_INFO_REQUESTED &&
+           res != PARAM_ENGINES_REQUESTED) {
+          const char *reason = param2text(res);
+          warnf(operation->global, "%s:%d: warning: '%s' %s\n",
+                filename, lineno, option, reason);
+        }
+      }
+
+      if(alloced_param)
+        Curl_safefree(param);
+
+      curlx_dyn_reset(&buf);
+    }
+    curlx_dyn_free(&buf);
+    if(file != stdin)
+      fclose(file);
+    if(fileerror)
+      rc = 1;
+  }
+  else
+    rc = 1; /* couldn't open the file */
+
+  free(pathalloc);
+  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 null-terminate */
+  return line;
+}
+
+/*
+ * Reads a line from the given file, ensuring is NUL terminated.
+ */
+static bool my_get_line(FILE *fp, struct curlx_dynbuf *db,
+                        bool *error)
+{
+  char buf[4096];
+  *error = FALSE;
+  do {
+    /* fgets() returns s on success, and NULL on error or when end of file
+       occurs while no characters have been read. */
+    if(!fgets(buf, sizeof(buf), fp))
+      /* only if there's data in the line, return TRUE */
+      return curlx_dyn_len(db) ? TRUE : FALSE;
+    if(curlx_dyn_add(db, buf)) {
+      *error = TRUE; /* error */
+      return FALSE; /* stop reading */
+    }
+  } while(!strchr(buf, '\n'));
+
+  return TRUE; /* continue */
+}