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This commit is contained in:
Simon Gardling
2024-09-10 13:03:02 -04:00
parent 53c617d779
commit d66450e427
381 changed files with 28864 additions and 34170 deletions
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212
userland/testbin/redirect/redirect.c
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@@ -50,148 +50,128 @@
static const char slogan[] = "CECIDI, ET NON SURGERE POSSUM!\n";
static
int
doopen(const char *path, int openflags)
{
int fd;
static int doopen(const char *path, int openflags) {
int fd;
fd = open(path, openflags, 0664);
if (fd < 0) {
err(1, "%s", path);
}
return fd;
fd = open(path, openflags, 0664);
if (fd < 0) {
err(1, "%s", path);
}
return fd;
}
static
void
dodup2(int ofd, int nfd, const char *file)
{
int r;
static void dodup2(int ofd, int nfd, const char *file) {
int r;
r = dup2(ofd, nfd);
if (r < 0) {
err(1, "%s: dup2", file);
}
if (r != nfd) {
errx(1, "%s: dup2: Expected %d, got %d", nfd, r);
}
r = dup2(ofd, nfd);
if (r < 0) {
err(1, "%s: dup2", file);
}
if (r != nfd) {
errx(1, "%s: dup2: Expected %d, got %d", nfd, r);
}
}
static
void
doclose(int fd, const char *file)
{
if (close(fd)) {
warnx("%s: close", file);
}
static void doclose(int fd, const char *file) {
if (close(fd)) {
warnx("%s: close", file);
}
}
static
void
mkfile(void)
{
int fd;
ssize_t r;
static void mkfile(void) {
int fd;
ssize_t r;
fd = doopen(INFILE, O_WRONLY|O_CREAT|O_TRUNC);
fd = doopen(INFILE, O_WRONLY | O_CREAT | O_TRUNC);
r = write(fd, slogan, strlen(slogan));
if (r < 0) {
err(1, "%s: write", INFILE);
}
if ((size_t)r != strlen(slogan)) {
errx(1, "%s: write: Short count (got %zd, expected %zu)",
INFILE, r, strlen(slogan));
}
r = write(fd, slogan, strlen(slogan));
if (r < 0) {
err(1, "%s: write", INFILE);
}
if ((size_t)r != strlen(slogan)) {
errx(1, "%s: write: Short count (got %zd, expected %zu)", INFILE, r,
strlen(slogan));
}
doclose(fd, INFILE);
doclose(fd, INFILE);
}
static
void
chkfile(void)
{
char buf[256];
ssize_t r;
int fd;
static void chkfile(void) {
char buf[256];
ssize_t r;
int fd;
fd = doopen(OUTFILE, O_RDONLY);
fd = doopen(OUTFILE, O_RDONLY);
r = read(fd, buf, sizeof(buf));
if (r < 0) {
err(1, "%s: read", OUTFILE);
}
if (r == 0) {
errx(1, "%s: read: Unexpected EOF", OUTFILE);
}
if ((size_t)r != strlen(slogan)) {
errx(1, "%s: read: Short count (got %zd, expected %zu)",
OUTFILE, r, strlen(slogan));
}
r = read(fd, buf, sizeof(buf));
if (r < 0) {
err(1, "%s: read", OUTFILE);
}
if (r == 0) {
errx(1, "%s: read: Unexpected EOF", OUTFILE);
}
if ((size_t)r != strlen(slogan)) {
errx(1, "%s: read: Short count (got %zd, expected %zu)", OUTFILE, r,
strlen(slogan));
}
doclose(fd, OUTFILE);
doclose(fd, OUTFILE);
}
static
void
cat(void)
{
pid_t pid;
int rfd, wfd, result, status;
const char *args[2];
static void cat(void) {
pid_t pid;
int rfd, wfd, result, status;
const char *args[2];
rfd = doopen(INFILE, O_RDONLY);
wfd = doopen(OUTFILE, O_WRONLY|O_CREAT|O_TRUNC);
rfd = doopen(INFILE, O_RDONLY);
wfd = doopen(OUTFILE, O_WRONLY | O_CREAT | O_TRUNC);
pid = fork();
if (pid < 0) {
err(1, "fork");
}
pid = fork();
if (pid < 0) {
err(1, "fork");
}
if (pid == 0) {
/* child */
dodup2(rfd, STDIN_FILENO, INFILE);
dodup2(wfd, STDOUT_FILENO, OUTFILE);
doclose(rfd, INFILE);
doclose(wfd, OUTFILE);
args[0] = "cat";
args[1] = NULL;
execv(PATH_CAT, (char **)args);
warn("%s: execv", PATH_CAT);
_exit(1);
}
if (pid == 0) {
/* child */
dodup2(rfd, STDIN_FILENO, INFILE);
dodup2(wfd, STDOUT_FILENO, OUTFILE);
doclose(rfd, INFILE);
doclose(wfd, OUTFILE);
args[0] = "cat";
args[1] = NULL;
execv(PATH_CAT, (char **)args);
warn("%s: execv", PATH_CAT);
_exit(1);
}
/* parent */
doclose(rfd, INFILE);
doclose(wfd, OUTFILE);
/* parent */
doclose(rfd, INFILE);
doclose(wfd, OUTFILE);
result = waitpid(pid, &status, 0);
if (result == -1) {
err(1, "waitpid");
}
if (WIFSIGNALED(status)) {
errx(1, "pid %d: Signal %d", (int)pid, WTERMSIG(status));
}
if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
errx(1, "pid %d: Exit %d", (int)pid, WEXITSTATUS(status));
}
result = waitpid(pid, &status, 0);
if (result == -1) {
err(1, "waitpid");
}
if (WIFSIGNALED(status)) {
errx(1, "pid %d: Signal %d", (int)pid, WTERMSIG(status));
}
if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
errx(1, "pid %d: Exit %d", (int)pid, WEXITSTATUS(status));
}
}
int
main(void)
{
printf("Creating %s...\n", INFILE);
mkfile();
int main(void) {
printf("Creating %s...\n", INFILE);
mkfile();
printf("Running cat < %s > %s\n", INFILE, OUTFILE);
cat();
printf("Running cat < %s > %s\n", INFILE, OUTFILE);
cat();
printf("Checking %s...\n", OUTFILE);
chkfile();
printf("Checking %s...\n", OUTFILE);
chkfile();
printf("Passed.\n");
(void)remove(INFILE);
(void)remove(OUTFILE);
return 0;
printf("Passed.\n");
(void)remove(INFILE);
(void)remove(OUTFILE);
return 0;
}