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cd.c
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80 lines (77 loc) · 1.53 KB
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#include "headers.h"
void cd(char * input_str, char * add_root)
{
long long int i,j,k,len,status;
char new_dir[10000],temp[10000];
// printf("INPUT STR %s\n",input_str);
len = strlen(input_str);
for(i=2;i<len;i++)
{
if(input_str[i]!=' ')
{
break;
}
}
if(input_str[i]=='~')
{
i++;
strcpy(new_dir,add_root);
j=strlen(add_root);
// new_dir[j++]='/';
for(;i<len;i++)
{
if(input_str[i]==' ')
{
printf("too many arguments\n");
return;
}
else
{
new_dir[j++]=input_str[i];
}
}
new_dir[j]='\0';
}
else if(input_str[i]=='-')
{
j=0;
i++;
for(;i<len;i++)
{
if(input_str[i]!=' ')
{
printf("too many arguments\n");
return;
}
}
strcpy(new_dir,lwd);
}
else
{
j=0;
for(;i<len;i++)
{
if(input_str[i]==' ')
{
printf("too many arguments\n");
return;
}
else
{
new_dir[j++]=input_str[i];
}
}
new_dir[j]='\0';
}
// printf("directory: %s\n",new_dir);
getcwd(temp,10000);
status=chdir(new_dir);
if(status==-1)
{
printf("No such file or directry\n");
}
else
{
strcpy(lwd,temp);
}
}