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author | rtm <rtm> | 2006-08-11 13:55:18 +0000 |
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committer | rtm <rtm> | 2006-08-11 13:55:18 +0000 |
commit | 17a856577f9db766b8ef7099d0575d378dff5dd1 (patch) | |
tree | 53d0c687d9c9bf83d097a2171c48d04a569c5a61 /sh.c | |
parent | 5be0039ce9e22f140a29e167526c64c723c5be3c (diff) | |
download | xv6-labs-17a856577f9db766b8ef7099d0575d378dff5dd1.tar.gz xv6-labs-17a856577f9db766b8ef7099d0575d378dff5dd1.tar.bz2 xv6-labs-17a856577f9db766b8ef7099d0575d378dff5dd1.zip |
init creates console, opens 0/1/2, runs sh
sh accepts 0-argument commands (like userfs)
reads from console
Diffstat (limited to 'sh.c')
-rw-r--r-- | sh.c | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -0,0 +1,31 @@ +#include "user.h" +#include "types.h" +#include "fs.h" +#include "fcntl.h" + +char *args[100]; + +int +main(void) +{ + char buf[128]; + int pid; + + while(1){ + write(1, "$ ", 2); + gets(buf, sizeof(buf)); + if(buf[0] == '\0') + continue; + pid = fork(); + if(pid == 0){ + args[0] = buf; + args[1] = 0; + exec(buf, args); + write(1, buf, strlen(buf)); + write(1, ": not found\n", 12); + exit(); + } + if(pid > 0) + wait(); + } +} |