path.cc: Ignore zero-length exclusions

mingwandroid · Alexpux · commit 6a0ecce00a52 · 2017-02-13T23:01:36.000+03:00
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
@@ -3452,7 +3452,7 @@ arg_heuristic_with_exclusions (char const * const arg, char const * exclusions,
     {
       /* Since we've got regex linked we should maybe switch to that, but
          running regexes for every argument could be too slow. */
-      if ( strcmp (exclusions, "*") == 0 || strstr (arg, exclusions) == arg )
+      if ( strcmp (exclusions, "*") == 0 || (strlen (exclusions) && strstr (arg, exclusions) == arg) )
         return (char*)arg;
       exclusions += strlen (exclusions) + 1;
     }

Original file line number	Diff line number	Diff line change
`@@ -3452,7 +3452,7 @@ arg_heuristic_with_exclusions (char const * const arg, char const * exclusions,`
`3452`	`3452`	`{`
`3453`	`3453`	`/* Since we've got regex linked we should maybe switch to that, but`
`3454`	`3454`	`running regexes for every argument could be too slow. */`
`3455`		`- if ( strcmp (exclusions, "*") == 0 \|\| strstr (arg, exclusions) == arg )`
	`3455`	`+ if ( strcmp (exclusions, "*") == 0 \|\| (strlen (exclusions) && strstr (arg, exclusions) == arg) )`
`3456`	`3456`	`return (char*)arg;`
`3457`	`3457`	`exclusions += strlen (exclusions) + 1;`
`3458`	`3458`	`}`