installer: Center root line and help line.

[ipfire-2.x.git] / src / installer / main.c

diff --git a/src/installer/main.c b/src/installer/main.c
index e32718b924813285a588b59b7aba9e5b2cd22600..2e0c7dd412dfe45a2a80da43753a160d02810e6b 100644 (file)
--- a/src/installer/main.c
+++ b/src/installer/main.c
@@ -10,6 +10,7 @@
 
 #include <assert.h>
 #include <errno.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mount.h>
@@ -176,9 +177,42 @@ int write_lang_configs(const char *lang) {
        return 1;
 }
 
+static char* get_system_release() {
+       char system_release[STRING_SIZE] = "\0";
+
+       FILE* f = fopen("/etc/system-release", "r");
+       if (f) {
+               fgets(system_release, sizeof(system_release), f);
+               fclose(f);
+       }
+
+       return strdup(system_release);
+}
+
+static char* center_string(const char* str, int width) {
+       unsigned int str_len = strlen(str);
+
+       unsigned int indent_length = (width - str_len) / 2;
+       char indent[indent_length + 1];
+
+       for (unsigned int i = 0; i < indent_length; i++) {
+               indent[i] = ' ';
+       }
+       indent[indent_length] = '\0';
+
+       char* string = NULL;
+       if (asprintf(&string, "%s%s", indent, str) < 0)
+               return NULL;
+
+       return string;
+}
+
 int main(int argc, char *argv[]) {
        struct hw* hw = hw_init();
 
+       // Read /etc/system-release
+       char* system_release = get_system_release();
+
        char discl_msg[40000] = "Disclaimer\n";
 
        char *langnames[] = { "Deutsch", "English", "Français", "Español", "Nederlands", "Polski", "Русский", "Türkçe", NULL };
@@ -218,7 +252,16 @@ int main(int argc, char *argv[]) {
        newtInit();
        newtCls();
 
-       newtDrawRootText(14, 0, NAME " " VERSION " - " SLOGAN );
+       // Determine the size of the screen
+       int screen_cols = 0;
+       int screen_rows = 0;
+
+       newtGetScreenSize(&screen_cols, &screen_rows);
+
+       // Draw title
+       char* roottext = center_string(system_release, screen_cols);
+       newtDrawRootText(0, 0, roottext);
+
        sprintf (title, "%s %s - %s", NAME, VERSION, SLOGAN);
 
        if (! (cmdfile = fopen("/proc/cmdline", "r")))
@@ -258,7 +301,8 @@ int main(int argc, char *argv[]) {
 
        setlocale(LC_ALL, shortlangnames[choice]);
 
-       newtPushHelpLine(_("<Tab>/<Alt-Tab> between elements | <Space> selects | <F12> next screen"));
+       char* helpline = center_string(_("<Tab>/<Alt-Tab> between elements | <Space> selects | <F12> next screen"), screen_cols);
+       newtPushHelpLine(helpline);
 
        if (!unattended) {
                snprintf(message, sizeof(message),
@@ -607,6 +651,10 @@ EXIT:
        newtFinished();
 
        // Free resources
+       free(system_release);
+       free(roottext);
+       free(helpline);
+
        free(sourcedrive);
 
        if (destination) {