int pipe_exec_fg(char const **argv, int in, int out) {
int pid;
pid = fork();
if (pid < 0) {
ropen(0, fd_rp(in), STAT_READER);
ropen(1, fd_rp(out), STAT_WRITER);
if (execv(argv[0], argv)) {
if (errno == ENOENT) {
fprintf(stderr, "%s: %s: command not found\n", getname_s(), argv[0]);
}
else {
perror(argv[0]);
}
abort();
}
}
close(in);
close(out);
mwait(PORT_CHILD, pid);
return 0;
}
int fish_exec_fg(int argc, char **argv, FILE *in, FILE *out, FILE *err) {
char const **_argv;
int pid;
pid = fork();
if (pid == 0) {
if (in) stdin = in;
if (out) stdout = out;
if (err) stderr = err;
_argv = malloc(sizeof(char*) * (argc + 1));
memcpy(_argv, argv, sizeof(char*) * argc);
_argv[argc] = NULL;
if (execvp(_argv[0], _argv)) {
if (errno == ENOENT) {
fprintf(stderr, "%s: %s: command not found\n", getname_s(), argv[0]);
}
else {
perror(argv[0]);
}
abort();
}
}
frcall(stdout->fd, AC_WRITE, "set_fgjob %d", pid);
waitpid(pid, NULL, 0);
frcall(stdout->fd, AC_WRITE, "set_fgjob %d", 0);
return 0;
}
static void _sigpanic(const char *message) {
_stop(-1);
fprintf(stderr,
"%s (pid %d \"%s\" terminated)\n", message, getpid(), getname_s());
abort();
}
int fish_cd(int argc, char **argv) {
char *path;
if (argc < 2) {
setenv("PWD", "/");
return 0;
}
path = path_simplify(argv[1]);
if (path && fs_find(path)) {
setenv("PWD", path);
}
else {
fprintf(stderr, "%s: %s: no such directory\n", getname_s(), argv[1]);
free(path);
return 1;
}
free(path);
return 0;
}
int pipe_list_exec(struct pipe_list *list, int in, int out) {
int pipefd[2];
if (!list) {
return 0;
}
while (list->next) {
if (pipe(pipefd)) {
fprintf(stderr, "%s: error: could not open pipe\n", getname_s());
abort();
}
pipe_exec_bg(list->argv, in, pipefd[1]);
in = pipefd[0];
list = list->next;
}
pipe_exec_fg(list->argv, in, out);
return 0;
}
