Changeset de3e100 for irc.c

Timestamp:

2006-01-14T20:31:59Z (18 years ago)

Author:

Wilmer van der Gaast <wilmer@…>

Branches:

master

Children:

0431ea1

Parents:

b23c5c7

Message:

Separated the IRC line splitting/parsing code (to use it for IPC too), and improved the splitting to deal with empty arguments.

File:

• irc.c (modified) (4 diffs)

irc.c

@@ -293 +293 @@
 int irc_process( irc_t *irc )
 {
-        char **lines, *temp;    
+        char **lines, *temp, **cmd;
         int i;
 
-        if( irc->readbuffer != NULL ) {
-                lines = irc_tokenize(irc->readbuffer );
-                for( i = 0; *lines[i] != '\0'; i++ ) {
-                        if( lines[i+1] == NULL ) {
+        if( irc->readbuffer != NULL )
+        {
+                lines = irc_tokenize( irc->readbuffer );
+                
+                for( i = 0; *lines[i] != '\0'; i ++ )
+                {
+                        if( lines[i+1] == NULL )
+                        {
                                 temp = g_strdup( lines[i] );
                                 g_free( irc->readbuffer );
                                 irc->readbuffer = temp;
-                                i++;
+                                i ++;
                                 break;
                         }                       
-                        if (!irc_process_line(irc, lines[i])) {
+                        
+                        if( ( cmd = irc_parse_line( irc, lines[i] ) ) == NULL )
+                                continue;
+                        if( !irc_exec( irc, cmd ) )
+                        {
+                                g_free( cmd );
                                 g_free( lines );
                                 return 0;
                         }
-                }
-                if(lines[i]!=NULL) {
-                        g_free(irc->readbuffer);
-                        irc->readbuffer=NULL;   
-                }
+                        
+                        g_free( cmd );
+                }
+                
+                if( lines[i] != NULL )
+                {
+                        g_free( irc->readbuffer );
+                        irc->readbuffer = NULL; 
+                }
+                
                 g_free( lines );
         }
+        
         return 1;       
 }
@@ -326 +341 @@
 
         /* Count the number of elements we're gonna need. */
-        for(i=0, j=1; buffer[i]!='\0'; i++ ) {
-                if(buffer[i]=='\n' )
-                        if(buffer[i+1]!='\r' && buffer[i+1]!='\n')
-                                j++;
+        for( i = 0, j = 1; buffer[i] != '\0'; i ++ )
+        {
+                if( buffer[i] == '\n' )
+                        if( buffer[i+1] != '\r' && buffer[i+1] != '\n' )
+                                j ++;
         }
         
         /* Allocate j+1 elements. */
-        lines=g_new (char *, j+1);
+        lines = g_new( char *, j + 1 );
         
         /* NULL terminate our list. */ 
-        lines[j]=NULL;
-        
-        lines[0]=buffer;
+        lines[j] = NULL;
+        
+        lines[0] = buffer;
         
         /* Split the buffer in several strings, using \r\n as our seperator, where \r is optional.
          * Although this is not in the RFC, some braindead ircds (newnet's) use this, so some clients might too. 
          */
-        for( i=0, j=0; buffer[i]!='\0'; i++) {
-                if(buffer[i]=='\n') {
-                        buffer[i]='\0';
-
-                        /* We dont want to read 1 byte before our buffer
-                         * and (in rare cases) generate a SIGSEGV.
-                         */
-                        if(i!=0)
-                                if(buffer[i-1]=='\r')
-                                        buffer[i-1]='\0';
-                        if(buffer[i+1]!='\r'&&buffer[i+1]!='\n')
-                                lines[++j]=buffer+i+1;
-                }
-        }
-
-        return(lines);
-}
-
-int irc_process_line( irc_t *irc, char *line )
+        for( i = 0, j = 0; buffer[i] != '\0'; i ++)
+        {
+                if( buffer[i] == '\n' )
+                {
+                        buffer[i] = '\0';
+                        
+                        if( i > 0 && buffer[i-1] == '\r' )
+                                buffer[i-1] = '\0';
+                        if( buffer[i+1] != '\r' && buffer[i+1] != '\n' )
+                                lines[++j] = buffer + i + 1;
+                }
+        }
+        
+        return( lines );
+}
+
+char **irc_parse_line( irc_t *irc, char *line )
 {
         int i, j;
@@ -367 +381 @@
         
         /* Move the line pointer to the start of the command, skipping spaces and the optional prefix. */
-        if(line[0]==':') {
-                for(i=0; line[i]!=32; i++);
-                line=line+i;
-        }
-        for(i=0; line[i]==32; i++);
-        line=line+i;
-
+        if( line[0] == ':' )
+        {
+                for( i = 0; line[i] != ' '; i ++ );
+                line = line + i;
+        }
+        for( i = 0; line[i] == ' '; i ++ );
+        line = line + i;
+        
         /* If we're already at the end of the line, return. If not, we're going to need at least one element. */
-        if(line[0]=='\0')
-                return 1;
-        else
-                j=1;    
-        
-        /* Count the number of char **cmd elements we're going to need. */      
-        for(i=0; line[i]!='\0'; i++) {
-                if((line[i]==32) && (line[i+1]!=32) && (line[i+1]!='\0') && (line[i+1]!=':'))           
-                        j++;
-                else if((line[i]==':') && (line[i+1]!='\0') && (line[i-1]==32)) {
-                        j++;
-                        break;
-                }
+        if( line[0] == '\0')
+                return NULL;
+        
+        /* Count the number of char **cmd elements we're going to need. */
+        j = 1;
+        for( i = 0; line[i] != '\0'; i ++ )
+        {
+                if( line[i] == ' ' )
+                {
+                        j ++;
                         
+                        if( line[i+1] == ':' )
+                                break;
+                }
         }       
 
         /* Allocate the space we need. */
-        cmd=g_new(char *, j+1);
-        cmd[j]=NULL;
+        cmd = g_new( char *, j + 1 );
+        cmd[j] = NULL;
         
         /* Do the actual line splitting, format is:
@@ -400 +415 @@
          */
 
-        cmd[0]=line;
-        for(i=0, j=0; line[i]!='\0'; i++) {
-                if((line[i]==32)) {
-                        line[i]='\0';
-                        if((line[i+1]!=32) && (line[i+1]!='\0') && (line[i+1]!=':'))            
-                                cmd[++j]=line+i+1;
-                }
-                else if((line[i]==':') && (line[i+1]!='\0') && (line[i-1]=='\0')) {
-                        cmd[++j]=line+i+1;
-                        break;
-                }
-        }
-        
-        i=irc_exec(irc, cmd);
-        g_free(cmd);
-
-        return(i);      
+        cmd[0] = line;
+        for( i = 0, j = 0; line[i] != '\0'; i ++ )
+        {
+                if( line[i] == ' ' )
+                {
+                        line[i] = '\0';
+                        cmd[++j] = line + i + 1;
+                        
+                        if( line[i+1] == ':' )
+                        {
+                                cmd[j] ++;
+                                break;
+                        }
+                }
+        }
+        
+        return cmd;
 }