Author: rjung
Date: Wed Dec 24 08:46:35 2014
New Revision: 1647746
URL: http://svn.apache.org/r1647746
Log:
Review comment and patch by kkolinko -
PR 54596: Review comments and patch by kkolinko -
followup to r1647684:
- Remove unused cp argument from skip_prefix()
- Ensure sp hidden return value from skip_prefix()
is always initialized
- Check valid use of skip_prefix() in relative
path situation
- Simplify dots skipping code
Modified:
tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
Modified: tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/iis/jk_isapi_plugin.c?rev=1647746&r1=1647745&r2=1647746&view=diff
==============================================================================
--- tomcat/jk/trunk/native/iis/jk_isapi_plugin.c (original)
+++ tomcat/jk/trunk/native/iis/jk_isapi_plugin.c Wed Dec 24 08:46:35 2014
@@ -3710,9 +3710,10 @@ static __inline void BS2FSA(char *str)
} \
} while(0)
-static char *skip_prefix(char *path, char **sp, char **cp)
+static char *skip_prefix(char *path, char **sp)
{
size_t size;
+ char *cp;
/* Convert everything to forward slashes
*/
@@ -3721,6 +3722,7 @@ static char *skip_prefix(char *path, cha
*/
path = NO2UNC(path);
size = strlen(path);
+ *sp = path;
if (size < 2) {
if (path[0] == ' ') {
/* Single Trailing space is invalid path
@@ -3742,7 +3744,6 @@ static char *skip_prefix(char *path, cha
return 0;
}
}
- *sp = path;
if (size > 1 && path[1] == ':' && IS_DRIVE_CHAR(path[0])) {
/* Never go above C: */
path += 2;
@@ -3754,9 +3755,9 @@ static char *skip_prefix(char *path, cha
/* This is probably //./pipe/ */
return path;
}
- *cp = strchr(path + 2, '/');
- if (*cp != 0)
- path = *cp;
+ cp = strchr(path + 2, '/');
+ if (cp != 0)
+ path = cp;
else {
/* We only have //share
*/
@@ -3772,25 +3773,30 @@ static char *relative_path(char *path, i
char *cp;
int ch = '/';
- path = skip_prefix(path, &sp, &cp);
+ path = skip_prefix(path, &sp);
if (!path)
return 0;
- /* Remaining is the same as on unixes */
+ if (path != sp) {
+ /* Unexpected. Expected a relative path, but it starts with C: or
//share/ */
+ SetLastError(ERROR_BAD_PATHNAME);
+ return 0;
+ }
cp = path;
while (*path) {
if (IS_PATH_SEP(ch) && *path == '.') {
+ /* nd: number of consecutive dot characters */
int nd = 0;
while (path[nd] == '.')
nd++;
- if (nd > 2 && path[nd] == '/') {
- SetLastError(ERROR_BAD_PATHNAME);
- return 0;
- }
if (IS_PATH_SEP(path[nd])) {
+ if (nd > 2) {
+ SetLastError(ERROR_BAD_PATHNAME);
+ return 0;
+ }
path += nd;
if (*path)
path++;
- while (nd > 1) {
+ if (nd > 1) {
if (cp > sp + 1) {
cp--;
while (cp > sp) {
@@ -3801,9 +3807,7 @@ static char *relative_path(char *path, i
}
else {
(*remain)++;
- break;
}
- nd--;
}
}
else {
@@ -3843,8 +3847,7 @@ static char *path_merge(const char *root
if (remain > 0) {
char *skip = root + rsz - 1;
char *spr;
- char *cpr;
- char *start = skip_prefix(root, &spr, &cpr);
+ char *start = skip_prefix(root, &spr);
if (*skip == '/')
skip--;
while (remain > 0 && skip >= start) {
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