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This commit is contained in:
Robert Hensing 2024-07-01 11:38:14 +02:00
parent 6432c21b01
commit 3f4e344572
1 changed files with 64 additions and 64 deletions
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10
tests/nixos/user-sandboxing/attacker.c
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@ -9,11 +9,13 @@
#define SYS_fchmodat2 452 #define SYS_fchmodat2 452
int fchmodat2(int dirfd, const char *pathname, mode_t mode, int flags) { int fchmodat2(int dirfd, const char * pathname, mode_t mode, int flags)
{
return syscall(SYS_fchmodat2, dirfd, pathname, mode, flags); return syscall(SYS_fchmodat2, dirfd, pathname, mode, flags);
} }
int main(int argc, char **argv) { int main(int argc, char ** argv)
{
if (argc <= 1) { if (argc <= 1) {
// stage 1: place the setuid-builder executable // stage 1: place the setuid-builder executable
@ -49,8 +51,7 @@ int main(int argc, char **argv) {
for (;;) { for (;;) {
ssize_t len = read(fd, buf, sizeof(buf)); ssize_t len = read(fd, buf, sizeof(buf));
struct inotify_event * ev; struct inotify_event * ev;
for (char *pe = buf; pe < buf + len; for (char * pe = buf; pe < buf + len; pe += sizeof(struct inotify_event) + ev->len) {
pe += sizeof(struct inotify_event) + ev->len) {
ev = (struct inotify_event *) pe; ev = (struct inotify_event *) pe;
fprintf(stderr, "folder %s created\n", ev->name); fprintf(stderr, "folder %s created\n", ev->name);
// wait a bit to prevent racing against the creation // wait a bit to prevent racing against the creation
@ -79,4 +80,3 @@ int main(int argc, char **argv) {
exit(0); exit(0);
} }
} }