A special test file for syscalls in io.c, I tried to make the trace
results as stable as each time we execute the program.
* test/.gitignore: Add json_io.
* test/.Makefile: Add json_io.c to compile list.
* test/json_io.c(newfile): contain test cases for syscalls in io.c,
The only random number would be the pipe numver when calling syscalls
like spice,vmsplice.
---
test/.gitignore | 1 +
test/Makefile | 2 +-
test/json_io.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 93 insertions(+), 1 deletion(-)
create mode 100644 test/json_io.c
diff --git a/test/.gitignore b/test/.gitignore
index c73b64a..f488409 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -1,3 +1,4 @@
+json_io
vfork
fork
sig
diff --git a/test/Makefile b/test/Makefile
index cc7d47a..d19b187 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -3,7 +3,7 @@ CFLAGS += -Wall
PROGS = \
vfork fork sig skodic clone leaderkill childthread \
sigkill_rain wait_must_be_interruptible threaded_execve \
- mtd ubi select sigreturn
+ mtd ubi select sigreturn json_io
all: $(PROGS)
diff --git a/test/json_io.c b/test/json_io.c
new file mode 100644
index 0000000..f1e77e9
--- /dev/null
+++ b/test/json_io.c
@@ -0,0 +1,91 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/uio.h>
+#include <sys/sendfile.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <linux/fs.h>
+
+void test(void)
+{
+ #define BUFSIZE (1000)
+ static char buf[BUFSIZE] = "xm\216\315r\177\0\0
\304\311\315r\177\0\0\0\0\0\0\1\0\0\0\242\10\0\0\1\0\0\0";
+ static char str[] = "helloworld, this_is_a_test_string,\n\n\n.
!@$%^$!@, \\{{{\"\"\"]]]}}}%%---%%";
+ int strsz = strlen(str) + 1;
+
+ int fd1 = open("/tmp/strace_GSOC_json_test.txt",
O_CLOEXEC|O_CREAT|O_RDWR|O_TRUNC, S_IWUSR|S_IRUSR|S_IROTH|S_IRGRP);
+
+ write(923, buf, 25);
+ write(fd1, buf, 0);
+ write(fd1, str, strsz);
+ write(fd1, str, 10);
+
+ read(923, buf, BUFSIZE);
+ lseek(fd1, 0, SEEK_SET);
+ read(fd1, buf, 0);
+ read(fd1, buf, BUFSIZE);
+ lseek(fd1, -10, SEEK_END);
+ read(fd1, buf, 20);
+
+ static char vecstr[5][50] = {
+ "abcdefgabcdefgabcdefg",
+ "6fgjgbcduifgabcdefgbcdefg",
+ "i890abfghgabcduioefg",
+ "vgyjghuvbbcddfsucdefgdefg",
+ "sfd0-9gcdefgabcdefgbcdefg"};
+
+ struct iovec vecbuf[5];
+ int i;
+ for (i=0; i<5; i++) {
+ vecbuf[i].iov_base = vecstr[i];
+ vecbuf[i].iov_len = strlen(vecstr[i]) + 1;
+ }
+
+ pread(fd1, buf, BUFSIZE, 0);
+ pwrite(fd1, buf, BUFSIZE, 0);
+ preadv(fd1, vecbuf, 5, 0);
+ pwritev(fd1, vecbuf, 5, 0);
+
+ int fd2 = 923;
+ off_t off = 99999346451407343;
+ sendfile(fd1, fd2, NULL, BUFSIZE);
+ sendfile(fd1, -1, &off, BUFSIZE);
+ fd2 = open("/tmp/strace_tmp_file2", O_RDWR | O_CREAT | O_TRUNC,
S_IWUSR|S_IRUSR|S_IROTH|S_IRGRP);
+ write(fd2, buf, BUFSIZE);
+ lseek(fd2, 0, SEEK_SET);
+ sendfile(fd1, fd2, &off, BUFSIZE);
+ off = 0;
+ sendfile(fd1, fd2, &off, 100);
+
+ tee(fd1, fd2, 2345, SPLICE_F_MORE | SPLICE_F_MOVE | SPLICE_F_GIFT);
+ tee(fd1, fd2, 2345, SPLICE_F_NONBLOCK | SPLICE_F_MOVE);
+ tee(STDIN_FILENO, STDOUT_FILENO, 99999, SPLICE_F_NONBLOCK);
+
+ off_t o1 = 12;
+ int pfd[2];
+ pipe2(pfd, O_NONBLOCK | O_CLOEXEC);
+ splice(fd1, NULL, fd2, NULL, 100, SPLICE_F_MOVE | SPLICE_F_NONBLOCK);
+ splice(fd1, &o1, pfd[1], NULL, 100, SPLICE_F_MOVE);
+ splice(fd1, &o1, pfd[1], NULL, 100, 8349583);
+
+ vmsplice(923, vecbuf, 5, 23487);
+ vmsplice(pfd[0], vecbuf, 5, SPLICE_F_NONBLOCK|SPLICE_F_MOVE);
+ vmsplice(pfd[1], vecbuf, 5, SPLICE_F_NONBLOCK|SPLICE_F_MOVE);
+}
+
+
+int main(int argc, char *argv[])
+{
+ int cnt = 1;
+ if (argc >= 2)
+ cnt = atoi(argv[1]);
+ while (cnt-- > 0) {
+ test();
+ }
+ return 0;
+}
\ No newline at end of file
--
1.9.1
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