Issue: #137, Parse /etc/hosts file.

config/config.def.c

@@ -104,6 +104,7 @@ Settings config = {
     /** Lazy mode setting */
     .lazy_filter_limit =                                5000,
     /** auto select */
-    .auto_select       = FALSE
+    .auto_select = FALSE,
+    .parse_hosts = FALSE
 };
 

doc/rofi-manpage.markdown

@@ -44,6 +44,7 @@ rofi - A window switcher, run dialog and dmenu replacement
 [ -help]
 [ -dump-xresources ]
 [ -auto-select ]
+[ -parse-hosts ]
 
 ## DESCRIPTION
 
@@ -300,6 +301,11 @@ daemon listening to specific key-combinations.
 
   Default: *{terminal} -e {ssh-client} {host}*
 
+`-parse-hosts`
+
+    Parse the `/etc/hosts` files for entries.
+
+
 ### Run settings
 
 `-run-command` *cmd*

doc/rofi.1

@@ -42,6 +42,7 @@ rofi \- A window switcher, run dialog and dmenu replacement
 [ \-help]
 [ \-dump\-xresources ]
 [ \-auto\-select ]
+[ \-parse\-hosts ]
 .SH DESCRIPTION
 .PP
 \fBrofi\fP is an X11 popup window switcher, run dialog, dmenu replacement and more. It focusses on
@@ -378,6 +379,14 @@ Set the command to execute when starting a ssh session.
 The pattern \fI{host}\fP is replaced by the selected ssh entry.
 .IP
 Default: \fI{terminal} \-e {ssh\-client} {host}\fP
+.PP
+\fB\fC\-parse\-hosts\fR
+.PP
+.RS
+.nf
+Parse the `/etc/hosts` files for entries.
+.fi
+.RE
 .SS Run settings
 .PP
 \fB\fC\-run\-command\fR \fIcmd\fP
@@ -607,14 +616,18 @@ Check quotes used on the commandline: e.g. used “ instead of ".
 .SH WEBSITE
 .PP
 \fBrofi\fP website can be found at here
-\[la]https://davedavenport.github.io/rofi/\[ra]
+.UR https://davedavenport.github.io/rofi/
+.UE
 .PP
 \fBrofi\fP bugtracker can be found here
-\[la]https://github.com/DaveDavenport/rofi/issues\[ra]
+.UR https://github.com/DaveDavenport/rofi/issues
+.UE
 .SH AUTHOR
 .PP
 Qball Cow 
-\[la]qball@gmpclient.org\[ra]
+.MT qball@gmpclient.org
+.ME
 .PP
 Original code based on work by: Sean Pringle 
-\[la]sean.pringle@gmail.com\[ra]
+.MT sean.pringle@gmail.com
+.ME

include/rofi.h

@@ -201,6 +201,8 @@ typedef struct _Settings
     unsigned int   lazy_filter_limit;
     /** Auto select. */
     unsigned int   auto_select;
+    /** Hosts file parsing */
+    unsigned int   parse_hosts;
 } Settings;
 
 /** Global Settings structure. */

source/dialogs/ssh.c

@@ -109,6 +109,70 @@ static int ssh_sort_func ( const void *a, const void *b )
     const char *bstr = *( const char * const * ) b;
     return g_utf8_collate ( astr, bstr );
 }
+
+/**
+ * Read /etc/hosts
+ */
+static char **read_hosts_file ( char ** retv, unsigned int *length )
+{
+    // Read the hosts file.
+    FILE *fd = fopen ( "/etc/hosts", "r" );
+    if ( fd != NULL ) {
+        char buffer[1024];
+        // Reading one line per time.
+        while ( fgets ( buffer, sizeof ( buffer ), fd ) ) {
+            // Evaluate one line.
+            unsigned int index  = 0, ti = 0;
+            char         *token = buffer;
+
+            // Tokenize it.
+            do {
+                char c = buffer[index];
+                // Break on space, tab, newline and \0.
+                if ( c == ' ' || c == '\t' || c == '\n' || c == '\0' || c == '#' ) {
+                    buffer[index] = '\0';
+                    // Ignore empty tokens
+                    if ( token[0] != '\0' ) {
+                        ti++;
+                        // and first token.
+                        if ( ti > 1 ) {
+                            // Is this host name already in the list?
+                            // We often get duplicates in hosts file, so lets check this.
+                            int found = 0;
+                            for ( unsigned int j = 0; j < ( *length ); j++ ) {
+                                if ( !g_ascii_strcasecmp ( token, retv[j] ) ) {
+                                    found = 1;
+                                    break;
+                                }
+                            }
+
+                            if ( !found ) {
+                                // Add this host name to the list.
+                                retv = g_realloc ( retv,
+                                                   ( ( *length ) + 2 ) * sizeof ( char* ) );
+                                retv[( *length )]     = g_strdup ( token );
+                                retv[( *length ) + 1] = NULL;
+                                ( *length )++;
+                            }
+                        }
+                    }
+                    // Set start to next element.
+                    token = &buffer[index + 1];
+                    // Everything after comment ignore.
+                    if ( c == '#' ) {
+                        break;
+                    }
+                }
+                // Skip to the next entry.
+                index++;
+            } while ( buffer[index] != '\0' && buffer[index] != '#' );
+        }
+        fclose ( fd );
+    }
+
+    return retv;
+}
+
 static char ** get_ssh (  unsigned int *length )
 {
     char         **retv        = NULL;
@@ -124,6 +188,10 @@ static char ** get_ssh (  unsigned int *length )
     g_free ( path );
     num_favorites = ( *length );
 
+    if ( config.parse_hosts == TRUE ) {
+        retv = read_hosts_file ( retv, length );
+    }
+
     FILE       *fd = NULL;
     const char *hd = getenv ( "HOME" );
     path = g_strdup_printf ( "%s/%s", hd, ".ssh/config" );

source/xrmoptions.c

@@ -104,7 +104,8 @@ static XrmOption xrmOptions[] = {
     { xrm_Boolean, "sidebar-mode",         { .num  = &config.sidebar_mode          }, NULL },
     { xrm_Number,  "lazy-filter-limit",    { .num  = &config.lazy_filter_limit     }, NULL },
     { xrm_SNumber, "eh",                   { .snum = &config.element_height        }, NULL },
-    { xrm_Boolean, "auto-select",          { .num  = &config.auto_select           }, NULL }
+    { xrm_Boolean, "auto-select",          { .num  = &config.auto_select           }, NULL },
+    { xrm_Boolean, "parse-hosts",          { .num  = &config.parse_hosts           }, NULL }
 };
 
 // Dynamic options.