Merge branch 'vpatch' of github.com:libical/libical into vpatch

12 files changed, 2600 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f95acf03..1cfcf96a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -465,4 +465,19 @@ install(
   FILE LibIcalTargets.cmake
 )
 
+########## By popular demand, add an uninstall target ##########
+
+if(NOT TARGET uninstall)
+  configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/uninstall.cmake"
+    IMMEDIATE
+    @ONLY
+  )
+
+  add_custom_target(uninstall
+    COMMAND "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/uninstall.cmake"
+  )
+endif()
+
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/scripts/buildtests.sh b/scripts/buildtests.sh
index 20f879e8..128378fe 100755
--- a/scripts/buildtests.sh
+++ b/scripts/buildtests.sh
@@ -31,6 +31,16 @@ HELP() {
   echo
 }
 
+COMMAND_EXISTS () {
+    command -v $1 >/dev/null 2>&1
+    if ( test $? != 0 )
+    then
+    echo "$1 is not in your PATH. Either install this program or skip the assocatied test"
+    exit 1
+  fi
+}
+
+
 #function SET_GCC
 # setup compiling with gcc
 SET_GCC() {
@@ -140,6 +150,7 @@ GCC_BUILD() {
     echo "===== GCC BUILD TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "gcc"
   echo "===== START GCC BUILD: $1 ======"
   SET_GCC
   BUILD "$name" "$2"
@@ -157,6 +168,7 @@ CLANG_BUILD() {
     echo "===== CLANG BUILD TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "clang"
   echo "===== START CLANG BUILD: $1 ======"
   SET_CLANG
   BUILD "$name" "$2"
@@ -191,6 +203,7 @@ CPPCHECK() {
     echo "===== CPPCHECK TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "cppcheck"
   echo "===== START SETUP FOR CPPCHECK: $1 ======"
 
   #first build it
@@ -239,6 +252,7 @@ SPLINT() {
     echo "===== SPLIT TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "splint"
   echo "===== START SETUP FOR SPLINT: $1 ======"
 
   #first build it
@@ -320,6 +334,7 @@ CLANGTIDY() {
     echo "===== CLANG-TIDY TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "clang-tidy"
   echo "===== START CLANG-TIDY: $1 ====="
   cd $TOP
   SET_CLANG
@@ -340,6 +355,7 @@ CLANGSCAN() {
     echo "===== SCAN-BUILD TEST $1 DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "scan-build"
   echo "===== START SCAN-BUILD: $1 ====="
   cd $TOP
 
@@ -364,6 +380,7 @@ KRAZY() {
     echo "===== KRAZY TEST DISABLED DUE TO COMMAND LINE OPTION ====="
     return
   fi
+  COMMAND_EXISTS "krazy2all"
   echo "===== START KRAZY ====="
   cd $TOP
   krazy2all |& tee krazy.out
diff --git a/src/libical/icalcomponent.c b/src/libical/icalcomponent.c
index d5eab7df..341b39f5 100644
--- a/src/libical/icalcomponent.c
+++ b/src/libical/icalcomponent.c
@@ -885,12 +885,24 @@ void icalcomponent_foreach_recurrence(icalcomponent *comp,
 
     dtstart = icalcomponent_get_dtstart(comp);
 
+    if (icaltime_is_null_time(dtstart) &&
+        icalcomponent_isa(comp) == ICAL_VTODO_COMPONENT) {
+        /* VTODO with no DTSTART - use DUE */
+        dtstart = icalcomponent_get_due(comp);
+    }
     if (icaltime_is_null_time(dtstart))
         return;
 
     /* The end time could be specified as either a DTEND or a DURATION */
     /* icalcomponent_get_dtend takes care of these cases. */
     dtend = icalcomponent_get_dtend(comp);
+    if (icaltime_is_null_time(dtend) && icaltime_is_date(dtstart)) {
+        /* No DTEND or DURATION and DTSTART is DATE - duration is 1 day */
+        struct icaldurationtype dur = icaldurationtype_null_duration();
+
+        dur.days = 1;
+        dtend = icaltime_add(dtstart, dur);
+    }
 
     /* Now set up the base span for this item, corresponding to the
        base DTSTART and DTEND */
@@ -2532,3 +2544,195 @@ void icalcomponent_set_due(icalcomponent *comp, struct icaltimetype v)
         icalproperty_set_parameter(due_prop, icalparameter_new_tzid(tzid));
     }
 }
+
+static int prop_compare(void *a, void *b)
+{
+    icalproperty *p1 = (icalproperty*) a;
+    icalproperty *p2 = (icalproperty*) b;
+    icalproperty_kind k1 = icalproperty_isa(p1);
+    icalproperty_kind k2 = icalproperty_isa(p2);
+    int r = k1 - k2;
+
+    if (r == 0) {
+        if (k1 == ICAL_X_PROPERTY) {
+            r = strcmp(icalproperty_get_x_name(p1),
+                       icalproperty_get_x_name(p2));
+        }
+
+        if (r == 0) {
+            r = strcmp(icalproperty_get_value_as_string(p1),
+                       icalproperty_get_value_as_string(p2));
+        }
+    }
+
+    return r;
+}
+
+static int comp_compare(void *a, void *b)
+{
+    icalcomponent *c1 = (icalcomponent*) a;
+    icalcomponent *c2 = (icalcomponent*) b;
+    icalcomponent_kind k1 = icalcomponent_isa(c1);
+    icalcomponent_kind k2 = icalcomponent_isa(c2);
+    int r = k1 - k2;
+
+    if (r == 0) {
+        if (k1 == ICAL_X_COMPONENT) {
+            r = strcmp(c1->x_name, c2->x_name);
+        }
+
+        if (r == 0) {
+            const char *u1 = icalcomponent_get_uid(c1);
+            const char *u2 = icalcomponent_get_uid(c2);
+
+            if (u1 && u2) {
+                r = strcmp(u1, u2);
+
+                if (r == 0) {
+                    r = icaltime_compare(icalcomponent_get_recurrenceid(c1),
+                                         icalcomponent_get_recurrenceid(c2));
+                }
+            }
+            else {
+                icalproperty *p1, *p2;
+
+                switch (k1) {
+                case ICAL_VALARM_COMPONENT:
+                    p1 = icalcomponent_get_first_property(c1,
+                                                          ICAL_TRIGGER_PROPERTY);
+                    p2 = icalcomponent_get_first_property(c2,
+                                                          ICAL_TRIGGER_PROPERTY);
+                    r = strcmp(icalproperty_get_value_as_string(p1),
+                               icalproperty_get_value_as_string(p2));
+
+                    if (r == 0) {
+                        p1 = icalcomponent_get_first_property(c1,
+                                                              ICAL_ACTION_PROPERTY);
+                        p2 = icalcomponent_get_first_property(c2,
+                                                              ICAL_ACTION_PROPERTY);
+                        r = strcmp(icalproperty_get_value_as_string(p1),
+                                   icalproperty_get_value_as_string(p2));
+                    }
+                    break;
+
+                case ICAL_VTIMEZONE_COMPONENT:
+                    p1 = icalcomponent_get_first_property(c1,
+                                                          ICAL_TZID_PROPERTY);
+                    p2 = icalcomponent_get_first_property(c2,
+                                                          ICAL_TZID_PROPERTY);
+                    r = strcmp(icalproperty_get_value_as_string(p1),
+                               icalproperty_get_value_as_string(p2));
+                    break;
+
+                case ICAL_XSTANDARD_COMPONENT:
+                case ICAL_XDAYLIGHT_COMPONENT:
+                    p1 = icalcomponent_get_first_property(c1,
+                                                          ICAL_DTSTART_PROPERTY);
+                    p2 = icalcomponent_get_first_property(c2,
+                                                          ICAL_DTSTART_PROPERTY);
+                    r = strcmp(icalproperty_get_value_as_string(p1),
+                               icalproperty_get_value_as_string(p2));
+                    break;
+
+                case ICAL_VVOTER_COMPONENT:
+                    p1 = icalcomponent_get_first_property(c1,
+                                                          ICAL_VOTER_PROPERTY);
+                    p2 = icalcomponent_get_first_property(c2,
+                                                          ICAL_VOTER_PROPERTY);
+                    r = strcmp(icalproperty_get_value_as_string(p1),
+                               icalproperty_get_value_as_string(p2));
+                    break;
+
+                case ICAL_XVOTE_COMPONENT:
+                    p1 = icalcomponent_get_first_property(c1,
+                                                          ICAL_POLLITEMID_PROPERTY);
+                    p2 = icalcomponent_get_first_property(c2,
+                                                          ICAL_POLLITEMID_PROPERTY);
+                    r = strcmp(icalproperty_get_value_as_string(p1),
+                               icalproperty_get_value_as_string(p2));
+                    break;
+
+                default:
+                    /* XXX  Anything better? */
+                    r = icaltime_compare(icalcomponent_get_dtstamp(c1),
+                                         icalcomponent_get_dtstamp(c2));
+                    break;
+                }
+            }
+        }
+    }
+
+    return r;
+}
+
+void icalcomponent_normalize(icalcomponent *comp)
+{
+    pvl_list sorted_props = pvl_newlist();
+    icalproperty *prop;
+
+    while ((prop = pvl_pop(comp->properties)) != 0) {
+        int nparams = icalproperty_count_parameters(prop);
+
+        /* Skip unparameterized properties having default values */
+        switch (icalproperty_isa(prop)) {
+        case ICAL_CALSCALE_PROPERTY:
+            if ((nparams == 0) &&
+                (strcmp("GREGORIAN", icalproperty_get_calscale(prop)) == 0)) {
+                continue;
+            }
+            break;
+
+        case ICAL_CLASS_PROPERTY:
+            if ((nparams == 0) &&
+                (icalproperty_get_class(prop) == ICAL_CLASS_PUBLIC)) {
+                continue;
+            }
+            break;
+
+        case ICAL_PRIORITY_PROPERTY:
+            if ((nparams == 0) && (icalproperty_get_priority(prop) == 0)) {
+                continue;
+            }
+            break;
+
+        case ICAL_TRANSP_PROPERTY:
+            if ((nparams == 0) &&
+                (icalproperty_get_transp(prop) == ICAL_TRANSP_OPAQUE)) {
+                continue;
+            }
+            break;
+
+        case ICAL_REPEAT_PROPERTY:
+            if ((nparams == 0) && (icalproperty_get_repeat(prop) == 0)) {
+                continue;
+            }
+            break;
+
+        case ICAL_SEQUENCE_PROPERTY:
+            if ((nparams == 0) && (icalproperty_get_sequence(prop) == 0)) {
+                continue;
+            }
+            break;
+
+        default:
+            break;
+        }
+
+        icalproperty_normalize(prop);
+        pvl_insert_ordered(sorted_props, prop_compare, prop);
+    }
+
+    pvl_free(comp->properties);
+    comp->properties = sorted_props;
+
+    pvl_list sorted_comps = pvl_newlist();
+    icalcomponent *mycomp;
+
+    while ((mycomp = pvl_pop(comp->components)) != 0) {
+        icalcomponent_normalize(mycomp);
+        pvl_insert_ordered(sorted_comps, comp_compare, mycomp);
+    }
+
+    pvl_free(comp->components);
+    comp->components = sorted_comps;
+}
diff --git a/src/libical/icalcomponent.h b/src/libical/icalcomponent.h
index 84f4282e..3b1bec0f 100644
--- a/src/libical/icalcomponent.h
+++ b/src/libical/icalcomponent.h
@@ -273,6 +273,9 @@ LIBICAL_ICAL_EXPORT void icalcomponent_foreach_recurrence(icalcomponent *comp,
                                                                             span, void *data),
                                                           void *callback_data);
 
+LIBICAL_ICAL_EXPORT void icalcomponent_normalize(icalcomponent *comp);
+
+
 /*************** Type Specific routines ***************/
 
 LIBICAL_ICAL_EXPORT icalcomponent *icalcomponent_new_vcalendar(void);
diff --git a/src/libical/icalproperty.c b/src/libical/icalproperty.c
index ac38259e..f76c0f07 100644
--- a/src/libical/icalproperty.c
+++ b/src/libical/icalproperty.c
@@ -937,3 +937,115 @@ icalcomponent *icalproperty_get_parent(const icalproperty *property)
 
     return property->parent;
 }
+
+static int param_compare(void *a, void *b)
+{
+    /* XXX  Need to sort values for multi-valued parameters (e.g. MEMBER) */
+    return strcmp(icalparameter_as_ical_string((icalparameter *) a),
+                  icalparameter_as_ical_string((icalparameter *) b));
+}
+
+void icalproperty_normalize(icalproperty *prop)
+{
+    icalproperty_kind prop_kind = icalproperty_isa(prop);
+    pvl_list sorted_params = pvl_newlist();
+    icalparameter *param;
+
+    while ((param = pvl_pop(prop->parameters)) != 0) {
+        /* Skip parameters having default values */
+        switch (icalparameter_isa(param)) {
+        case ICAL_VALUE_PARAMETER:
+            /* Skip VALUE parameters for default property value types */
+            switch (prop_kind) {
+            case ICAL_ATTACH_PROPERTY:
+                if (icalparameter_get_value(param) == ICAL_VALUE_URI) {
+                    continue;
+                }
+                break;
+
+            case ICAL_DTEND_PROPERTY:
+            case ICAL_DUE_PROPERTY:
+            case ICAL_DTSTART_PROPERTY:
+            case ICAL_EXDATE_PROPERTY:
+            case ICAL_RDATE_PROPERTY:
+            case ICAL_RECURRENCEID_PROPERTY:
+                if (icalparameter_get_value(param) == ICAL_VALUE_DATETIME) {
+                    continue;
+                }
+                break;
+
+            case ICAL_DURATION_PROPERTY:
+                if (icalparameter_get_value(param) == ICAL_VALUE_DURATION) {
+                    continue;
+                }
+                break;
+
+            default:
+                break;
+            }
+            break;
+
+        case ICAL_CUTYPE_PARAMETER:
+            if (icalparameter_get_cutype(param) == ICAL_CUTYPE_INDIVIDUAL) {
+                continue;
+            }
+            break;
+
+        case ICAL_ENCODING_PARAMETER:
+            if (icalparameter_get_encoding(param) == ICAL_ENCODING_8BIT) {
+                continue;
+            }
+            break;
+
+        case ICAL_FBTYPE_PARAMETER:
+            if (icalparameter_get_fbtype(param) == ICAL_FBTYPE_BUSY) {
+                continue;
+            }
+            break;
+
+        case ICAL_PARTSTAT_PARAMETER:
+            if (icalparameter_get_partstat(param) == ICAL_PARTSTAT_NEEDSACTION) {
+                continue;
+            }
+            break;
+
+        case ICAL_RELATED_PARAMETER:
+            if (icalparameter_get_related(param) == ICAL_RELATED_START) {
+                continue;
+            }
+            break;
+
+        case ICAL_RELTYPE_PARAMETER:
+            if (icalparameter_get_reltype(param) == ICAL_RELTYPE_PARENT) {
+                continue;
+            }
+            break;
+
+        case ICAL_ROLE_PARAMETER:
+            if (icalparameter_get_role(param) == ICAL_ROLE_REQPARTICIPANT) {
+                continue;
+            }
+            break;
+
+        case ICAL_RSVP_PARAMETER:
+            if (icalparameter_get_rsvp(param) == ICAL_RSVP_FALSE) {
+                continue;
+            }
+            break;
+
+        case ICAL_SCHEDULEAGENT_PARAMETER:
+            if (icalparameter_get_scheduleagent(param) == ICAL_SCHEDULEAGENT_SERVER) {
+                continue;
+            }
+            break;
+
+        default:
+            break;
+        }
+
+        pvl_insert_ordered(sorted_params, param_compare, param);
+    }
+
+    pvl_free(prop->parameters);
+    prop->parameters = sorted_params;
+}
diff --git a/src/libical/icalproperty.h b/src/libical/icalproperty.h
index 6fad331f..84fd2e6e 100644
--- a/src/libical/icalproperty.h
+++ b/src/libical/icalproperty.h
@@ -124,4 +124,6 @@ LIBICAL_ICAL_EXPORT icalproperty_status icalproperty_string_to_status(const char
 
 LIBICAL_ICAL_EXPORT int icalproperty_enum_belongs_to_property(icalproperty_kind kind, int e);
 
+LIBICAL_ICAL_EXPORT void icalproperty_normalize(icalproperty *prop);
+
 #endif /*ICALPROPERTY_H */
diff --git a/src/libical/icalrecur.c b/src/libical/icalrecur.c
index 643be805..e8851621 100644
--- a/src/libical/icalrecur.c
+++ b/src/libical/icalrecur.c
@@ -1328,7 +1328,7 @@ static int initialize_iterator(icalrecur_iterator *impl)
     struct icaltimetype dtstart = impl->dtstart;
     char locale[ULOC_KEYWORD_AND_VALUES_CAPACITY] = "";
     UErrorCode status = U_ZERO_ERROR;
-    UChar *tzid = NULL;
+    UChar *tzid = (UChar *) UCAL_UNKNOWN_ZONE_ID;
     short is_hebrew = 0;
 
     if (dtstart.zone) {
diff --git a/src/libical/icalvalue.c b/src/libical/icalvalue.c
index 868d3261..d97c1014 100644
--- a/src/libical/icalvalue.c
+++ b/src/libical/icalvalue.c
@@ -628,6 +628,7 @@ static icalvalue *icalvalue_new_from_string_with_error(icalvalue_kind kind,
             if (rt.freq != ICAL_NO_RECURRENCE) {
                 value = icalvalue_new_recur(rt);
             }
+            free(rt.rscale);
             break;
         }
 
diff --git a/src/libicalvcal/vobject.c b/src/libicalvcal/vobject.c
index 47b8aa9b..10d0cf5a 100644
--- a/src/libicalvcal/vobject.c
+++ b/src/libicalvcal/vobject.c
@@ -199,7 +199,7 @@ const wchar_t* vObjectUStringZValue(VObject *o)
 
 void setVObjectUStringZValue(VObject *o, const wchar_t *s)
 {
-    size_t size = (size_t)((uStrLen(s)+1)*2);
+    size_t size = (size_t)((uStrLen(s)+1)*sizeof(wchar_t));
     USTRINGZ_VALUE_OF(o) = (wchar_t*) dupStr((char*)s,size);
     VALUE_TYPE(o) = VCVT_USTRINGZ;
 }
diff --git a/test-data/caltime.ics b/test-data/caltime.ics
new file mode 100644
index 00000000..a8d83057
--- /dev/null
+++ b/test-data/caltime.ics
@@ -0,0 +1,262 @@
+BEGIN:VTIMEZONE
+TZID:00
+BEGIN:VTIMEZONE
+TZID:00000
+BEGIN:STANDARD
+DTSTART;000000000000d00
+RDATE:00000020/00000005T000000Z
+0;0
+RDATE:00000020/00000005T000000Z
+RDATE:00000020/00000005T000000Z
+RDATE:TZID=:00;:000000
+00000000000:
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diff --git a/test-data/get_char_test.ics b/test-data/get_char_test.ics
new file mode 100644
index 00000000..f726f448
--- /dev/null
+++ b/test-data/get_char_test.ics
@@ -0,0 +1,1961 @@
+BEGIN:000
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diff --git a/uninstall.cmake.in b/uninstall.cmake.in
new file mode 100644
index 00000000..662668c7
--- /dev/null
+++ b/uninstall.cmake.in
@@ -0,0 +1,21 @@
+if(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+  message(FATAL_ERROR "Cannot find install manifest: @CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+endif()
+
+file(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach(file ${files})
+  message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+  if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+    exec_program(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+    )
+    if(NOT "${rm_retval}" STREQUAL 0)
+      message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+    endif()
+  else()
+    message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+  endif()
+endforeach()