sanchayanmaity/xv6-cs450
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

clumsy cd

Browse source
This commit is contained in:
rsc 2007-08-30 18:30:26 +00:00
parent fbd8857d4d
commit 9863fea78c
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
sh.c
View file

@ -157,6 +157,14 @@ main(void)
// Read and run input commands. // Read and run input commands.
while(getcmd(buf, sizeof(buf)) >= 0){ while(getcmd(buf, sizeof(buf)) >= 0){
if(buf[0] == 'c' && buf[1] == 'd' && buf[2] == ' '){
// Clumsy but will have to do for now.
// Chdir has no effect on the parent if run in the child.
buf[strlen(buf)-1] = 0; // chop \n
if(chdir(buf+3) < 0)
printf(2, "cannot cd %s\n", buf+3);
continue;
}
if(fork1() == 0) if(fork1() == 0)
runcmd(parsecmd(buf)); runcmd(parsecmd(buf));
wait(); wait();