Merge branch 'debian/sid' into debian/experimental

[apt.git] / apt-pkg / contrib / cmndline.cc

diff --git a/apt-pkg/contrib/cmndline.cc b/apt-pkg/contrib/cmndline.cc
index ed580000786653995bb3bf79df0d912fcbd72413..93c1f46647d47f7b0e42769e95ca98dcfe2b4f50 100644 (file)
--- a/apt-pkg/contrib/cmndline.cc
+++ b/apt-pkg/contrib/cmndline.cc
@@ -18,6 +18,11 @@
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
 
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+
 #include <apti18n.h>
                                                                        /*}}}*/
 using namespace std;
@@ -42,23 +47,26 @@ CommandLine::~CommandLine()
 char const * CommandLine::GetCommand(Dispatch const * const Map,
       unsigned int const argc, char const * const * const argv)
 {
-   // if there is a -- on the line there must be the word we search for around it
-   // as -- marks the end of the options, just not sure if the command can be
-   // considered an option or not, so accept both
+   // if there is a -- on the line there must be the word we search for either
+   // before it (as -- marks the end of the options) or right after it (as we can't
+   // decide if the command is actually an option, given that in theory, you could
+   // have parameters named like commands)
    for (size_t i = 1; i < argc; ++i)
    {
       if (strcmp(argv[i], "--") != 0)
         continue;
-      ++i;
-      if (i < argc)
+      // check if command is before --
+      for (size_t k = 1; k < i; ++k)
         for (size_t j = 0; Map[j].Match != NULL; ++j)
-           if (strcmp(argv[i], Map[j].Match) == 0)
+           if (strcmp(argv[k], Map[j].Match) == 0)
               return Map[j].Match;
-      i -= 2;
-      if (i != 0)
+      // see if the next token after -- is the command
+      ++i;
+      if (i < argc)
         for (size_t j = 0; Map[j].Match != NULL; ++j)
            if (strcmp(argv[i], Map[j].Match) == 0)
               return Map[j].Match;
+      // we found a --, but not a command
       return NULL;
    }
    // no --, so search for the first word matching a command