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globbing: fix url number calculation when using range with step 

In function glob_range, the number of urls was multiplied by (max - min
+ 1), regardless of step. The correct formula is (max - min) / step + 1
This commit is contained in:
Emil Lerner 2015-03-25 14:23:42 +03:00 committed by Daniel Stenberg
parent eb2a6180fb
commit 83835f7185
1 changed files with 7 additions and 5 deletions
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12
src/tool_urlglob.c
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@ -212,7 +212,7 @@ static CURLcode glob_range(URLGlob *glob, char **patternp,
*posp += (pattern - *patternp);
if((rc != 2) || (min_c >= max_c) || ((max_c - min_c) > ('z' - 'a')) ||
(step < 0) )
(step <= 0) )
/* the pattern is not well-formed */
return GLOBERROR("bad range", *posp, CURLE_URL_MALFORMAT);
@ -222,7 +222,8 @@ static CURLcode glob_range(URLGlob *glob, char **patternp,
pat->content.CharRange.max_c = max_c;
if(multiply(amount, (pat->content.CharRange.max_c -
pat->content.CharRange.min_c + 1)))
pat->content.CharRange.min_c) /
pat->content.CharRange.step + 1) )
return GLOBERROR("range overflow", *posp, CURLE_URL_MALFORMAT);
}
else if(ISDIGIT(*pattern)) {
@ -276,7 +277,8 @@ static CURLcode glob_range(URLGlob *glob, char **patternp,
*posp += (pattern - *patternp);
if(!endp || (min_n > max_n) || (step_n > (max_n - min_n)))
if(!endp || (min_n > max_n) || (step_n > (max_n - min_n)) ||
(step_n <= 0) )
/* the pattern is not well-formed */
return GLOBERROR("bad range", *posp, CURLE_URL_MALFORMAT);
@ -287,7 +289,8 @@ static CURLcode glob_range(URLGlob *glob, char **patternp,
pat->content.NumRange.step = step_n;
if(multiply(amount, (pat->content.NumRange.max_n -
pat->content.NumRange.min_n + 1)))
pat->content.NumRange.min_n) /
pat->content.NumRange.step + 1) )
return GLOBERROR("range overflow", *posp, CURLE_URL_MALFORMAT);
}
else
@ -666,4 +669,3 @@ CURLcode glob_match_url(char **result, char *filename, URLGlob *glob)
*result = target;
return CURLE_OK;
}