summaryrefslogtreecommitdiff
path: root/user/progQ.c
diff options
context:
space:
mode:
Diffstat (limited to 'user/progQ.c')
-rw-r--r--user/progQ.c45
1 files changed, 0 insertions, 45 deletions
diff --git a/user/progQ.c b/user/progQ.c
deleted file mode 100644
index 660c2d6..0000000
--- a/user/progQ.c
+++ /dev/null
@@ -1,45 +0,0 @@
-#include <common.h>
-
-/**
-** User function Q: exit, write, bogus
-**
-** Reports itself, then tries to execute a bogus system call
-**
-** Invoked as: userQ x
-** where x is the ID character
-*/
-
-USERMAIN(main)
-{
- char ch = 'q'; // default character to print
- char buf[128];
-
- // process the command-line arguments
- switch (argc) {
- case 2:
- ch = argv[1][0];
- break;
- default:
- sprint(buf, "userQ: argc %d, args: ", argc);
- cwrites(buf);
- for (int i = 0; i <= argc; ++i) {
- sprint(buf, " %s", argv[argc] ? argv[argc] : "(null)");
- cwrites(buf);
- }
- cwrites("\n");
- }
-
- // announce our presence
- write(CHAN_SIO, &ch, 1);
-
- // try something weird
- bogus();
-
- // should not have come back here!
- sprint(buf, "!!!!! %c returned from bogus syscall!?!?!\n", ch);
- cwrites(buf);
-
- exit(1);
-
- return (42); // shut the compiler up!
-}