1 | #include <stdio.h> |
2 | #include <string.h> |
3 | #include <unistd.h> |
4 | |
5 | static int |
6 | do_test (void) |
7 | { |
8 | int fd = dup (fd: fileno (stdout)); |
9 | if (fd <= 1) |
10 | { |
11 | puts (s: "dup failed" ); |
12 | return 1; |
13 | } |
14 | |
15 | FILE *f1 = fdopen (fd, "w" ); |
16 | if (f1 == NULL) |
17 | { |
18 | printf (format: "fdopen failed: %m\n" ); |
19 | return 1; |
20 | } |
21 | |
22 | fclose (stdout); |
23 | |
24 | FILE *f2 = popen (command: "echo test1" , modes: "r" ); |
25 | if (f2 == NULL) |
26 | { |
27 | fprintf (f1, "1st popen failed: %m\n" ); |
28 | return 1; |
29 | } |
30 | FILE *f3 = popen (command: "echo test2" , modes: "r" ); |
31 | if (f2 == NULL || f3 == NULL) |
32 | { |
33 | fprintf (f1, "2nd popen failed: %m\n" ); |
34 | return 1; |
35 | } |
36 | |
37 | char *line = NULL; |
38 | size_t len = 0; |
39 | int result = 0; |
40 | if (getline (lineptr: &line, n: &len, stream: f2) != 6) |
41 | { |
42 | fputs ("could not read line from 1st popen\n" , f1); |
43 | result = 1; |
44 | } |
45 | else if (strcmp (line, "test1\n" ) != 0) |
46 | { |
47 | fprintf (f1, "read \"%s\"\n" , line); |
48 | result = 1; |
49 | } |
50 | |
51 | if (getline (lineptr: &line, n: &len, stream: f2) != -1) |
52 | { |
53 | fputs ("second getline did not return -1\n" , f1); |
54 | result = 1; |
55 | } |
56 | |
57 | if (getline (lineptr: &line, n: &len, stream: f3) != 6) |
58 | { |
59 | fputs ("could not read line from 2nd popen\n" , f1); |
60 | result = 1; |
61 | } |
62 | else if (strcmp (line, "test2\n" ) != 0) |
63 | { |
64 | fprintf (f1, "read \"%s\"\n" , line); |
65 | result = 1; |
66 | } |
67 | |
68 | if (getline (lineptr: &line, n: &len, stream: f3) != -1) |
69 | { |
70 | fputs ("second getline did not return -1\n" , f1); |
71 | result = 1; |
72 | } |
73 | |
74 | int ret = pclose (stream: f2); |
75 | if (ret != 0) |
76 | { |
77 | fprintf (f1, "1st pclose returned %d\n" , ret); |
78 | result = 1; |
79 | } |
80 | |
81 | ret = pclose (stream: f3); |
82 | if (ret != 0) |
83 | { |
84 | fprintf (f1, "2nd pclose returned %d\n" , ret); |
85 | result = 1; |
86 | } |
87 | |
88 | return result; |
89 | } |
90 | |
91 | #define TEST_FUNCTION do_test () |
92 | #include "../test-skeleton.c" |
93 | |