int exec_pipe(t_tab *tab, t_btree **tree, int status, t_pid **pid)
{
int n;
n = 0;
(void)status;
fill_pid(pid, 1);
if (pipe(tab->pipefd[tab->pipe % 2]) == -1)
return (-1);
if (!((*pid)->nbr = fork()))
return (fork_pipe(tab, tree, pid, n));
if ((close(tab->pipefd[tab->pipe % 2][1])) == -1)
return (-1);
fd_is_on(tab, CLOSE);
if (tab)
{
tab->sid = (tab->sid == 0) ? (*pid)->nbr : tab->sid;
tab->pipe++;
}
relink_tree(tree);
return (0);
}
int library_import(struct library *li, const char *scan, const char *path)
{
int fd, status;
char *cratename, *pathname;
pid_t pid;
FILE *fp;
struct crate *crate;
fprintf(stderr, "Scanning '%s'...\n", path);
pathname = strdupa(path);
cratename = basename(pathname); /* POSIX version, see basename(3) */
assert(cratename != NULL);
crate = use_crate(li, cratename);
if (crate == NULL)
return -1;
pid = fork_pipe(&fd, scan, "scan", path, NULL);
if (pid == -1)
return -1;
fp = fdopen(fd, "r");
if (fp == NULL) {
perror("fdopen");
abort(); /* recovery not implemented */
}
for (;;) {
struct record *d, *x;
if (get_record(fp, &d) == -1)
return -1;
if (d == NULL)
break;
/* Add to the crate of all records */
x = crate_add(&li->all, d);
if (x == NULL)
return -1;
/* If there is an existing entry, use it instead */
if (x != d) {
record_clear(d);
free(d);
d = x;
}
/* Insert into the user's crate */
if (crate_add(crate, d) == NULL)
return -1;
}
if (fclose(fp) == -1) {
perror("close");
abort(); /* assumption fclose() can't on read-only descriptor */
}
if (waitpid(pid, &status, 0) == -1) {
perror("waitpid");
return -1;
}
if (!WIFEXITED(status) || WEXITSTATUS(status) != EXIT_SUCCESS) {
fputs("Library scan exited reporting failure.\n", stderr);
return -1;
}
return 0;
}
