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|
probe begin
{
# First we'll print the value of cwd/exe for the current task.
try
{
task = task_current()
path = task_cwd_path(task)
printf("current cwd: %s\n", fullpath_struct_path(path))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
try
{
file = task_exe_file(task)
printf("current exe: %s\n", fullpath_struct_file(task, file))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
# Now print the value of cwd/exe for our target pid. Note that at
# this point, the target exe path will still be stapio - the exec
# hasn't happened yet.
try
{
task = pid2task(target())
path = task_cwd_path(task)
printf("target cwd: %s\n", fullpath_struct_path(path))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
try
{
file = task_exe_file(task)
printf("target exe: %s\n", fullpath_struct_file(task, file))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
# Let's try using a task pointer of 0, which should fail.
try
{
task = 0
path = task_cwd_path(task)
printf("path: %p\n", path)
printf("%s\n", fullpath_struct_path(path))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
try
{
file = task_exe_file(task)
printf("file: %p\n", file)
printf("%s\n", fullpath_struct_file(task, file))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
# Now let's try using a task pointer of -1, which should also
# fail.
try
{
task = -1
path = task_cwd_path(task)
printf("%s\n", fullpath_struct_path(path))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
try
{
file = task_exe_file(task)
printf("%s\n", fullpath_struct_file(task, file))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
}
probe syscall.geteuid, syscall.getuid
{
# Now print the value of cwd/exe for our target pid. At this
# point, we should be executing 'whoami', since stapio should have
# forked, then exec'ed 'whoami'.
if (pid() != target()) next
try
{
task = task_current()
path = task_cwd_path(task)
printf("current cwd: %s\n", fullpath_struct_path(path))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
try
{
file = task_exe_file(task)
printf("current exe: %s\n", fullpath_struct_file(task, file))
}
catch (msg) {
printf("ERROR: %s\n", msg)
}
exit()
}
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