Imported Upstream version 7.59.0

[platform/upstream/curl.git] / lib / dotdot.c

diff --git a/lib/dotdot.c b/lib/dotdot.c
index ea7c8a0..cbb308d 100644 (file)
--- a/lib/dotdot.c
+++ b/lib/dotdot.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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
@@ -55,7 +55,7 @@ char *Curl_dedotdotify(const char *input)
   size_t inlen = strlen(input);
   char *clone;
   size_t clen = inlen; /* the length of the cloned input */
-  char *out = malloc(inlen+1);
+  char *out = malloc(inlen + 1);
   char *outptr;
   char *orgclone;
   char *queryp;
@@ -92,25 +92,25 @@ char *Curl_dedotdotify(const char *input)
         remove that prefix from the input buffer; otherwise, */
 
     if(!strncmp("./", clone, 2)) {
-      clone+=2;
-      clen-=2;
+      clone += 2;
+      clen -= 2;
     }
     else if(!strncmp("../", clone, 3)) {
-      clone+=3;
-      clen-=3;
+      clone += 3;
+      clen -= 3;
     }
 
     /*  B.  if the input buffer begins with a prefix of "/./" or "/.", where
         "."  is a complete path segment, then replace that prefix with "/" in
         the input buffer; otherwise, */
     else if(!strncmp("/./", clone, 3)) {
-      clone+=2;
-      clen-=2;
+      clone += 2;
+      clen -= 2;
     }
     else if(!strcmp("/.", clone)) {
       clone[1]='/';
       clone++;
-      clen-=1;
+      clen -= 1;
     }
 
     /*  C.  if the input buffer begins with a prefix of "/../" or "/..", where
@@ -119,8 +119,8 @@ char *Curl_dedotdotify(const char *input)
         any) from the output buffer; otherwise, */
 
     else if(!strncmp("/../", clone, 4)) {
-      clone+=3;
-      clen-=3;
+      clone += 3;
+      clen -= 3;
       /* remove the last segment from the output buffer */
       while(outptr > out) {
         outptr--;
@@ -131,8 +131,8 @@ char *Curl_dedotdotify(const char *input)
     }
     else if(!strcmp("/..", clone)) {
       clone[2]='/';
-      clone+=2;
-      clen-=2;
+      clone += 2;
+      clen -= 2;
       /* remove the last segment from the output buffer */
       while(outptr > out) {
         outptr--;
@@ -146,7 +146,8 @@ char *Curl_dedotdotify(const char *input)
         that from the input buffer; otherwise, */
 
     else if(!strcmp(".", clone) || !strcmp("..", clone)) {
-      *clone=0;
+      *clone = 0;
+      *out = 0;
     }
 
     else {
@@ -171,7 +172,7 @@ char *Curl_dedotdotify(const char *input)
        from the correct index. */
     size_t oindex = queryp - orgclone;
     qlen = strlen(&input[oindex]);
-    memcpy(outptr, &input[oindex], qlen+1); /* include the ending zero byte */
+    memcpy(outptr, &input[oindex], qlen + 1); /* include the end zero byte */
   }
 
   free(orgclone);