myshellin/src/loop.c

44 lines
905 B
C

#define _GNU_SOURCE
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "user.h"
void remove_new_line(char* line) {
line[strcspn(line, "\n")] = 0;
}
void print_input_line() {
char *name = get_user();
printf("%s $ ", name);
}
void loop() {
size_t buffer_size = 0;
char *line = NULL;
while (1) {
print_input_line();
if (getline(&line, &buffer_size, stdin) == -1) {
if (feof(stdin)) {
// the stdin was closed, this usually happens for CTRL-D
printf("\n");
exit(EXIT_SUCCESS);
}
else {
perror("Error: ");
printf("\n");
exit(EXIT_FAILURE);
}
}
remove_new_line(line);
if (strcmp(line, "quit") == 0) {
break;
}
}
}