diff options
Diffstat (limited to '')
-rw-r--r-- | user/progQ.c | 45 |
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! -} |