Use a platform-specific routine for long option usage

Related to https://github.com/htop-dev/htop/pull/564

2 files changed, 23 insertions, 13 deletions

diff --git a/linux/Platform.c b/linux/Platform.c
index a6885254..13c0ddb2 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -846,6 +846,20 @@ void Platform_getBattery(double* percent, ACPresence* isOnAC) {
    Platform_Battery_cacheTime = now;
 }
 
+void Platform_longOptionsUsage(const char* name)
+{
+#ifdef HAVE_LIBCAP
+   printf(
+"   --drop-capabilities[=none|basic|strict] Drop Linux capabilities when running as root\n"
+"                                none - do not drop any capabilities\n"
+"                                basic (default) - drop all capabilities not needed by %s\n"
+"                                strict - drop all capabilities except those needed for\n"
+"                                         core functionality\n", name);
+#else
+   (void) name;
+#endif
+}
+
 bool Platform_getLongOption(int opt, int argc, char** argv) {
 #ifndef HAVE_LIBCAP
    (void) argc;
diff --git a/linux/Platform.h b/linux/Platform.h
index 30544997..18d303d1 100644
--- a/linux/Platform.h
+++ b/linux/Platform.h
@@ -27,19 +27,6 @@ in the source distribution for its full text.
    #define PATH_MAX 4096
 #endif
 
-#ifdef HAVE_LIBCAP
-   #define PLATFORM_LONG_OPTIONS \
-      {"drop-capabilities", optional_argument, 0, 128},
-   #define PLATFORM_LONG_OPTIONS_USAGE \
-         "   --drop-capabilities[=none|basic|strict] Drop Linux capabilities when running as root\n" \
-         "                                none - do not drop any capabilities\n" \
-         "                                basic (default) - drop all capabilities not needed by htop\n" \
-         "                                strict - drop all capabilities except those needed for core functionality\n"
-#else
-   #define PLATFORM_LONG_OPTIONS
-   #define PLATFORM_LONG_OPTIONS_USAGE
-#endif
-
 
 extern const ProcessField Platform_defaultFields[];
 
@@ -95,6 +82,15 @@ static inline void Platform_getRelease(char** string) {
    *string = Generic_uname();
 }
 
+#ifdef HAVE_LIBCAP
+   #define PLATFORM_LONG_OPTIONS \
+      {"drop-capabilities", optional_argument, 0, 128},
+#else
+   #define PLATFORM_LONG_OPTIONS
+#endif
+
+void Platform_longOptionsUsage(const char* name);
+
 bool Platform_getLongOption(int opt, int argc, char** argv);
 
 #endif