diff options
Diffstat (limited to 'tests/dev-ptmx')
| -rw-r--r-- | tests/dev-ptmx | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/tests/dev-ptmx b/tests/dev-ptmx new file mode 100644 index 0000000..5eb7bd0 --- /dev/null +++ b/tests/dev-ptmx @@ -0,0 +1,149 @@ +#!/bin/sh +set -eu +export LC_ALL=C.UTF-8 + +if [ {{ MODE }} != unshare ] && [ {{ MODE }} != root ]; then + echo "test requires root or unshare mode" >&2 + exit 1 +fi + +prefix= +if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then + if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then + if [ ! -e /mmdebstrap-testenv ]; then + echo "this test modifies the system and should only be run inside a container" >&2 + exit 1 + fi + useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}" + fi + prefix="runuser -u ${SUDO_USER:-user} --" +fi + +# this mimics what apt does in apt-pkg/deb/dpkgpm.cc/pkgDPkgPM::StartPtyMagic() +cat > /tmp/test.c << 'END' +#define _GNU_SOURCE + +#include <stdlib.h> +#include <fcntl.h> +#include <termios.h> +#include <unistd.h> +#include <stdio.h> +#include <sys/ioctl.h> +#include <signal.h> + +int main() { + int ret; + int fd = posix_openpt(O_RDWR | O_NOCTTY); + if (fd < 0) { + perror("posix_openpt"); + return 1; + } + char buf[64]; // 64 is used by apt + ret = ptsname_r(fd, buf, sizeof(buf)); + if (ret != 0) { + perror("ptsname_r"); + return 1; + } + ret = grantpt(fd); + if (ret == -1) { + perror("grantpt"); + return 1; + } + struct termios origtt; + ret = tcgetattr(STDIN_FILENO, &origtt); + if (ret != 0) { + perror("tcgetattr1"); + return 1; + } + struct termios tt; + ret = tcgetattr(STDOUT_FILENO, &tt); + if (ret != 0) { + perror("tcgetattr2"); + return 1; + } + struct winsize win; + ret = ioctl(STDOUT_FILENO, TIOCGWINSZ, &win); + if (ret < 0) { + perror("ioctl stdout TIOCGWINSZ"); + return 1; + } + ret = ioctl(fd, TIOCSWINSZ, &win); + if (ret < 0) { + perror("ioctl fd TIOCGWINSZ"); + return 1; + } + ret = tcsetattr(fd, TCSANOW, &tt); + if (ret != 0) { + perror("tcsetattr1"); + return 1; + } + cfmakeraw(&tt); + tt.c_lflag &= ~ECHO; + tt.c_lflag |= ISIG; + sigset_t sigmask; + sigset_t sigmask_old; + ret = sigemptyset(&sigmask); + if (ret != 0) { + perror("sigemptyset"); + return 1; + } + ret = sigaddset(&sigmask, SIGTTOU); + if (ret != 0) { + perror("sigaddset"); + return 1; + } + ret = sigprocmask(SIG_BLOCK,&sigmask, &sigmask_old); + if (ret != 0) { + perror("sigprocmask1"); + return 1; + } + ret = tcsetattr(STDIN_FILENO, TCSAFLUSH, &tt); + if (ret != 0) { + perror("tcsetattr2"); + return 1; + } + ret = sigprocmask(SIG_BLOCK,&sigmask_old, NULL); + if (ret != 0) { + perror("sigprocmask2"); + return 1; + } + ret = tcsetattr(STDIN_FILENO, TCSAFLUSH, &origtt); + if (ret != 0) { + perror("tcsetattr3"); + return 1; + } + return 0; +} +END + +# use script to create a fake tty +# run all tests as root and as a normal user (the latter requires ptmxmode=666) +script -qfec "$prefix {{ CMD }} --mode={{ MODE }} --variant=apt \ + --include=gcc,libc6-dev,python3,passwd \ + --customize-hook='chroot \"\$1\" useradd --home-dir /home/user --create-home user' \ + --customize-hook='chroot \"\$1\" python3 -c \"import pty; print(pty.openpty())\"' \ + --customize-hook='chroot \"\$1\" runuser -u user -- python3 -c \"import pty; print(pty.openpty())\"' \ + --customize-hook='chroot \"\$1\" script -c \"echo foobar\"' \ + --customize-hook='chroot \"\$1\" runuser -u user -- env --chdir=/home/user script -c \"echo foobar\"' \ + --customize-hook='chroot \"\$1\" apt-get install --yes doc-debian 2>&1 | tee \"\$1\"/tmp/log' \ + --customize-hook=\"copy-in /tmp/test.c /tmp\" \ + --customize-hook='chroot \"\$1\" gcc /tmp/test.c -o /tmp/test' \ + --customize-hook='chroot \"\$1\" /tmp/test' \ + --customize-hook='chroot \"\$1\" runuser -u user -- /tmp/test' \ + --customize-hook='rm \"\$1\"/tmp/test \"\$1\"/tmp/test.c' \ + --customize-hook=\"copy-out /tmp/log /tmp\" \ + {{ DIST }} /dev/null {{ MIRROR }}" /dev/null + +fail=0 +[ -r /tmp/log ] || fail=1 +grep '^E:' /tmp/log && fail=1 +grep 'Can not write log' /tmp/log && fail=1 +grep 'posix_openpt' /tmp/log && fail=1 +grep 'No such file or directory' /tmp/log && fail=1 +if [ $fail -eq 1 ]; then + echo "apt failed to write log:" >&2 + cat /tmp/log >&2 + exit 1 +fi + +rm /tmp/test.c /tmp/log |