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#include "lslib.h"
#include <paths.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <fcntl.h>
FILE* get_file_s(const char* path, const char* type) {
struct stat s;
FILE* file;
if (streql("-", path) && type[0] == 'r') {
clearerr(stdin);
fflush(stdin);
return stdin;
}
if (lstat(path, &s) < 0) {
if (type[0] != 'r') goto read;
error_s("failed to read %s", path);
return NULL;
}
if (S_ISDIR(s.st_mode)) {
error_s("%s is a directory", path);
return NULL;
}
read:
file = fopen(path, type);
if (file == NULL) {
error_s("failed to %s file %s", type[0] == 'r' ? "read" : "write", path);
}
return file;
}
FILE* get_file(const char* path, const char* type) {
FILE* file = get_file_s(path, type);
if (file == NULL) exit(EXIT_FAILURE);
return file;
}
int get_tty (void) {
int fd = open(_PATH_TTY, O_RDONLY | O_NOCTTY | O_SYNC);
if (fd < 0) error("failed to get tty");
return fd;
}
FILE* get_tty_stream(char* type) {
int fd = get_tty();
FILE* file = fdopen(fd, type);
if (file == NULL) {
error("failed to open tty stream");
}
return file;
}
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