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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel (at) 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 http://curl.haxx.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  ***************************************************************************/
     22 #include "tool_setup.h"
     23 
     24 #include "rawstr.h"
     25 
     26 #define ENABLE_CURLX_PRINTF
     27 /* use our own printf() functions */
     28 #include "curlx.h"
     29 
     30 #include "tool_cfgable.h"
     31 #include "tool_convert.h"
     32 #include "tool_operhlp.h"
     33 #include "tool_metalink.h"
     34 
     35 #include "memdebug.h" /* keep this as LAST include */
     36 
     37 void clean_getout(struct OperationConfig *config)
     38 {
     39   struct getout *next;
     40   struct getout *node = config->url_list;
     41 
     42   while(node) {
     43     next = node->next;
     44     Curl_safefree(node->url);
     45     Curl_safefree(node->outfile);
     46     Curl_safefree(node->infile);
     47     Curl_safefree(node);
     48     node = next;
     49   }
     50   config->url_list = NULL;
     51 }
     52 
     53 bool output_expected(const char *url, const char *uploadfile)
     54 {
     55   if(!uploadfile)
     56     return TRUE;  /* download */
     57   if(checkprefix("http://", url) || checkprefix("https://", url))
     58     return TRUE;   /* HTTP(S) upload */
     59 
     60   return FALSE; /* non-HTTP upload, probably no output should be expected */
     61 }
     62 
     63 bool stdin_upload(const char *uploadfile)
     64 {
     65   return (curlx_strequal(uploadfile, "-") ||
     66           curlx_strequal(uploadfile, ".")) ? TRUE : FALSE;
     67 }
     68 
     69 /*
     70  * Adds the file name to the URL if it doesn't already have one.
     71  * url will be freed before return if the returned pointer is different
     72  */
     73 char *add_file_name_to_url(CURL *curl, char *url, const char *filename)
     74 {
     75   /* If no file name part is given in the URL, we add this file name */
     76   char *ptr = strstr(url, "://");
     77   if(ptr)
     78     ptr += 3;
     79   else
     80     ptr = url;
     81   ptr = strrchr(ptr, '/');
     82   if(!ptr || !strlen(++ptr)) {
     83     /* The URL has no file name part, add the local file name. In order
     84        to be able to do so, we have to create a new URL in another
     85        buffer.*/
     86 
     87     /* We only want the part of the local path that is on the right
     88        side of the rightmost slash and backslash. */
     89     const char *filep = strrchr(filename, '/');
     90     char *file2 = strrchr(filep?filep:filename, '\\');
     91     char *encfile;
     92 
     93     if(file2)
     94       filep = file2 + 1;
     95     else if(filep)
     96       filep++;
     97     else
     98       filep = filename;
     99 
    100     /* URL encode the file name */
    101     encfile = curl_easy_escape(curl, filep, 0 /* use strlen */);
    102     if(encfile) {
    103       char *urlbuffer;
    104       if(ptr)
    105         /* there is a trailing slash on the URL */
    106         urlbuffer = aprintf("%s%s", url, encfile);
    107       else
    108         /* there is no trailing slash on the URL */
    109         urlbuffer = aprintf("%s/%s", url, encfile);
    110 
    111       curl_free(encfile);
    112       Curl_safefree(url);
    113 
    114       if(!urlbuffer)
    115         return NULL;
    116 
    117       url = urlbuffer; /* use our new URL instead! */
    118     }
    119     else
    120       Curl_safefree(url);
    121   }
    122   return url;
    123 }
    124 
    125 /* Extracts the name portion of the URL.
    126  * Returns a pointer to a heap-allocated string or NULL if
    127  * no name part, at location indicated by first argument.
    128  */
    129 CURLcode get_url_file_name(char **filename, const char *url)
    130 {
    131   const char *pc;
    132 
    133   *filename = NULL;
    134 
    135   /* Find and get the remote file name */
    136   pc = strstr(url, "://");
    137   if(pc)
    138     pc += 3;
    139   else
    140     pc = url;
    141   pc = strrchr(pc, '/');
    142 
    143   if(pc)
    144     /* duplicate the string beyond the slash */
    145     pc++;
    146   else
    147     /* no slash => empty string */
    148     pc = "";
    149 
    150   *filename = strdup(pc);
    151   if(!*filename)
    152     return CURLE_OUT_OF_MEMORY;
    153 
    154   /* in case we built debug enabled, we allow an environment variable
    155    * named CURL_TESTDIR to prefix the given file name to put it into a
    156    * specific directory
    157    */
    158 #ifdef DEBUGBUILD
    159   {
    160     char *tdir = curlx_getenv("CURL_TESTDIR");
    161     if(tdir) {
    162       char buffer[512]; /* suitably large */
    163       snprintf(buffer, sizeof(buffer), "%s/%s", tdir, *filename);
    164       Curl_safefree(*filename);
    165       *filename = strdup(buffer); /* clone the buffer */
    166       curl_free(tdir);
    167       if(!*filename)
    168         return CURLE_OUT_OF_MEMORY;
    169     }
    170   }
    171 #endif
    172 
    173   return CURLE_OK;
    174 }
    175