1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
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
|
