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#include <stdio.h>
#include <string.h>
#include "syscalls.c"
#include "../fs/fs.h"
void hello() {
puts(
"Welcome to FoolShell v0.1"
);
}
void prompt() {
printf(
"$ "
);
}
int main(int argc, char **argv)
{
syscalls_init();
hello();
FILE *input;
input=fopen(1,"r");
char *buf=malloc(256);
while(1)
{
prompt();
fgets(buf,255,input);
buf[strlen(buf)-1]=0; // remove \n
process(buf);
}
return 0;
}
char **tokenize(char *buf)
{
char **token;
token=malloc(10*sizeof(char*));
int l=strlen(buf);
int i;
int c=0;
for(i=0;i<l;i++)
{
// init space for next token
token[c]=malloc(256);
//skip all the whitespace
while(buf[i]==' '&&i<l)i++;
if(i==l)break;
//get token
int t=0;
while(buf[i]!=' '&&i<l)
{
token[c][t]=buf[i];
t++;
i++;
}
token[c][t]=0;
// printf("token %i : <%s>\n",c, token[c]);
c++;
}
return token;
}
int process(char *buf)
{
char **token=tokenize(buf);
char *command=token[0];
// puts(command);
// copied from trottelshell
if(!strcmp(command,"help"))
{
puts("foolshell: supported built-in commands: 'help', 'echo [string]', 'ls [inode_nr]', exec [inode_nr],'malloc [bytes]', 'free [address]'");
}
else if(!strcmp(command,"ls"))
{
fs_dirent *dirs=malloc(sizeof(fs_dirent)*25);
int ls=readdir(atoi(token[1]),dirs,25);
int i;
for(i=0;i<ls;i++)
{
printf("foolshell: %i %s%c\n",dirs[i].inode, dirs[i].name, ((dirs[i].type==FS_FILE_TYPE_DIR)?'/':' '));
}
}
else if(!strcmp(command,"exec"))
{
execve(atoi(token[1]),0,0);
}
else if(!strcmp(command,"echo"))
{
printf("foolshell: \"%s\"\n",token[1]);
}
else if(!strcmp(command,"malloc"))
{
uint8_t *mall=malloc(atoi(token[1]));
printf("foolshell: allocated %d bytes at 0x%8x (%i).\n",atoi(token[1]),mall,mall);
}
else if(!strcmp(command,"free"))
{
free(atoi(token[1]));
printf("foolshell: called free(%08x).\n",atoi(token[1]));
}
else
{
puts("foolshell: command not found");
}
//
}
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