general code cleanup, wrote configfileparser, ...

5 files changed, 104 insertions, 2 deletions

diff --git a/noncore/net/wellenreiter/libwellenreiter/source/Makefile b/noncore/net/wellenreiter/libwellenreiter/source/Makefile
index 51b5ff3..6663c8a 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/Makefile
+++ b/noncore/net/wellenreiter/libwellenreiter/source/Makefile
@@ -1,17 +1,17 @@
 # $Id$
 
-OBJ = wl_proto.o wl_sock.o wl_log.o cardmode.o sniff.o
+OBJ = wl_proto.o wl_sock.o wl_log.o wl_conf.o cardmode.o sniff.o 
 CPP = g++
 CPPFLAGS = -Wall -pedantic -g -DDEBUG
 
         static:libwellenreiter.a
 libwellenreiter.a: $(OBJ)
         ar -cr libwellenreiter.a $(OBJ)
 
         shared:libwellenreiter.so
 libwellenreiter.so: $(OBJ)
         $(CPP) $(CPPFLAGS) -shared -o libwellenreiter.so $(OBJ)
 
 clean:
         rm -f *.o *.a *.so *~
 
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.cc b/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.cc
new file mode 100644
index 0000000..ba56754
--- a/dev/null
+++ b/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.cc
@@ -0,0 +1,81 @@
+/* 
+ * Configfile operations for wellenreiter
+ * 
+ * $Id$
+ */
+
+#include "wl_conf.hh"
+#include "wl_log.hh"
+#include "wl_types.hh"
+
+/* Check whether configfile exists and is readable */
+int wl_checkcfg(void)
+{
+  FILE *wl_config;
+
+  if((wl_config = fopen(WL_CONFFILE, "r")) == NULL)
+  {
+    wl_logerr("Cannot open configfile: %s", strerror(errno));
+    return 0;
+  }
+  else
+  {
+    fclose(wl_config);
+    return 1;
+  }
+
+}
+
+/* Get value for given token from config file */
+int wl_cfgvalue(const char *token, char *out, int maxlen)
+{
+  FILE *wl_config;
+  char *ptr, *ptr2;
+  char confbuf[WL_CONFBUFF];
+
+  if(token == NULL)
+    return -1;
+
+  if((wl_config = fopen(WL_CONFFILE, "r")) == NULL)
+  {
+    wl_logerr("Cannot open configfile: %s", strerror(errno));
+    return -1;
+  }
+   
+  /* Clear buffers */
+  memset(out, 0, maxlen);
+  memset(confbuf, 0, sizeof(confbuf));
+
+  while((fgets(confbuf, sizeof(confbuf) - 1, wl_config)) != NULL)
+  {
+    
+    /* Ignore comments */
+    if(confbuf[0] == '#') continue;
+ 
+    /* Search for token, if found check whether next character
+     *  is a '=' or a ' ' 
+     */
+    if(strstr(confbuf, token) != NULL &&
+       (confbuf[strlen(token)] == '=' || confbuf[strlen(token)] == ' '))
+    {
+
+      /* Get value between quotes */
+      if((ptr = strstr(confbuf, "\"")) == NULL)
+        break;
+      ++ptr;
+      if((ptr2 = strstr(ptr, "\"")) == NULL)
+        break;
+      ptr2[0] = '\0';
+
+      memcpy(out, ptr, maxlen - 1);
+      break;
+
+    }
+    memset(confbuf, 0, sizeof(confbuf));
+  }
+
+  fclose(wl_config);
+
+  return (out[0] == '\0' ? 0 : 1);
+}
+
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.hh b/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.hh
new file mode 100644
index 0000000..4061440
--- a/dev/null
+++ b/noncore/net/wellenreiter/libwellenreiter/source/wl_conf.hh
@@ -0,0 +1,12 @@
+/* $Id$ */
+
+#ifndef WLCONF_HH
+#define WLCONF_HH
+
+#include <string.h>
+#include <errno.h>
+
+int wl_checkcfg(void);
+int wl_cfgvalue(const char *, char *, int);
+
+#endif /* WLCONF_HH */
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/wl_proto.cc b/noncore/net/wellenreiter/libwellenreiter/source/wl_proto.cc
index 664ba92..67dfc02 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/wl_proto.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/wl_proto.cc
@@ -1,119 +1,122 @@
 /*
  * Communication protocol
  *
  * $Id$
  */
 
 #include "wl_types.hh"
 #include "wl_proto.hh"
 #include "wl_log.hh"
 #include "wl_sock.hh"
 
 /* Adds a field to the buffer */
 int add_field(char *buffer, const char *string, int len)
 {
   char newlen[5];
   
   /* 3 Byte = Length */
+  memset(newlen, 0, sizeof(newlen));
   snprintf(newlen, sizeof(newlen) - 1, "%.3d", len);
   memcpy(buffer, newlen, 3);
   
   /* Length bytes = Value */
   memcpy(buffer + 3, string, atoi(newlen));
   
   /* Return length of attached field */
   return (atoi(newlen) + 3);
 }
 
 int get_field(const char *buffer, char *out, int maxlen)
 {
   char len[5];
 
   /* Get length of value */
+  memset(len, 0, sizeof(len));
   memcpy(len, buffer, 3);
 
   /* Copy buffer to out pointer */
   memset(out, 0, maxlen);
-
   if(atoi(len) > maxlen -1)
     memcpy(out, buffer + 3, maxlen - 1);
   else
     memcpy(out, buffer + 3, atoi(len));
 
   /* Return length of whole field (including 3 byte length) */
   return (atoi(len) + 3);
 }
 
 /* Send found network to UI */
 int send_network_found (const char *guihost, int guiport, void *structure)
 {
   wl_network_t *ptr;
   char buffer[2048], temp[5];
   unsigned int len = 0;
 
   ptr = (wl_network_t *)structure;
 
+  memcpy(buffer, 0, sizeof(buffer));
+
   /* Type = Found new net (without length field) */
   memset(temp, 0, sizeof(temp));
   snprintf(temp, sizeof(temp), "%.2d", WL_NETFOUND);
   memcpy(buffer, temp, 2);
   len += 2;
 
   /* Set Net-type */
   memset(temp, 0, sizeof(temp));
   snprintf(temp, sizeof(temp), "%d", ptr->net_type);
   len += add_field(buffer + len, temp, 1);
 
   /* Set channel */
   memset(temp, 0, sizeof(temp));
   snprintf(temp, sizeof(temp), "%.2d", ptr->channel);
   len += add_field(buffer + len, temp, 2); 
 
   /* Set WEP y/n */
   memset(temp, 0, sizeof(temp));
   snprintf(temp, sizeof(temp), "%d", ptr->wep);
   len += add_field(buffer + len, temp, 1);
 
   /* Set Mac */
   len += add_field(buffer + len, ptr->mac, 17);
 
   /* Set ssid */
   if(len + ptr->ssid_len < sizeof(buffer) - 1)
     len += add_field(buffer + len, ptr->bssid, ptr->ssid_len);
   else
     len += add_field(buffer + len, ptr->bssid, sizeof(buffer) - len - 1);
 
   /* Send prepared buffer to UI */
 #ifdef DEBUG
   wl_loginfo("Sending network to UI: '%s'", buffer);
 #endif
 
   return ((!wl_send(guihost, guiport, buffer)) ? 0 : 1);
 }
 
 /* Fill buffer into structur */
 int get_network_found (void *structure, const char *buffer)
 {
   wl_network_t *ptr;
   char temp[5];
   unsigned int len = 0;
 
   ptr = (wl_network_t *)structure;
 
   /* packet type already determined, skip check */
   len += 2;
 
   /* Get net type (accesspoint || ad-hoc || ...) */
   memset(temp, 0, sizeof(temp));
   len += get_field(buffer + len, temp, sizeof(temp));
   ptr->net_type = atoi(temp); 
    
   /* Get channel */
   memset(temp, 0, sizeof(temp));
   len += get_field(buffer + len, temp, sizeof(temp));
   ptr->channel = atoi(temp);
 
   /* Set WEP y/n */
   memset(temp, 0, sizeof(temp));
   len += get_field(buffer + len, temp, sizeof(temp));
   ptr->wep = atoi(temp);
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/wl_types.hh b/noncore/net/wellenreiter/libwellenreiter/source/wl_types.hh
index a5ca281..f12d65e 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/wl_types.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/wl_types.hh
@@ -1,31 +1,37 @@
 /* 
  * Global bufffer size and type definitions
  *
  * $Id$
  *
  */
 
 #ifndef WL_TYPES_HH
 #define WL_TYPES_HH
 
 /* Type definitions, to be continued */
 #define WL_NETFOUND 01
 #define WL_NETLOST  02
 #define WL_STARTSNIFF 98
 #define WL_STOPSNIFF  99
 
+/* Socket specific */
 #define WL_SOCKBUF 512 /* Buffer for wl_send and wl_recv calls */
 
+/* Protocol specific */
 
 /* WL network structure */
 typedef struct {
   int net_type;    /* 1 = Accesspoint ; 2 = Ad-Hoc   */
   int ssid_len;    /* Length of SSID                 */
   int channel;     /* Channel                        */
   int wep;         /* 1 = WEP enabled ; 0 = disabled */
   char mac[64];    /* MAC address of Accesspoint     */
   char bssid[128]; /* BSSID of Net                   */
 } wl_network_t;
 
+/* Config specific */
+#define WL_CONFFILE "sample.conf"
+#define WL_CONFBUFF 128
+
 #endif /* WL_TYPES_HH */