Handling the SIGINT

Makefile

@@ -54,7 +54,8 @@ SRC = src/shell.c \
 	src/key_bindings/autocompletion.c \
 	src/builtin/builtin_bindkey.c \
 	src/key_bindings/other_bindings.c \
-	src/builtin/builtin_vars.c
+	src/builtin/builtin_vars.c \
+	src/key_bindings/signals.c
 
 OBJ = $(SRC:%.c=%.o)
 OBJ += src/main.o

include/key_functions.h

@@ -46,4 +46,6 @@ int down_history_command(int key, buffer_t *buffer, env_t *env);
 
 int quoted_insert_command(int key, buffer_t *buffer, env_t *env);
 int clear_screen_command(int key, buffer_t *buffer, env_t *env);
-int complete_command(int key, buffer_t *buffer, env_t *env);
+int complete_command(int key, buffer_t *buffer, env_t *env);
+
+int tty_sigintr_command(int key, buffer_t *buffer, env_t *env);

include/my_ncurses.h

@@ -71,4 +71,6 @@ my_addstr(window, str))
 #define my_clrtobot() (printf("\x1B[J"))
 
 void my_npause(my_window *window);
-void my_nresume(my_window *window);
+void my_nresume(my_window *window);
+
+extern my_window *stdwin;

include/shell.h

@@ -85,5 +85,6 @@ char *get_alias(char *cmd, alias_t *alias);
 char *add_separator(char *cmd, int *return_values, int index);
 char *get_alias_command(char *cmd, alias_t *alias);
 
+void setup_sigint(void);
 
 #define ERROR 84

src/execute.c

@@ -101,7 +101,7 @@ bool handle_parent_inout(redirection *inout[2], env_t *env, bool builtin)
 void run_cmd(char **argv, redirection *inout[2], env_t *env)
 {
     pid_t pid;
-    int status;
+    int status = 0;
     char *path;
 
     if (strlen(argv[0]) == 0)

src/key_bindings/default_bindings.c

@@ -25,6 +25,7 @@ const key_function_t key_functions[] = {
     {"complete-command", &complete_command},
     {"clear-screen", &clear_screen_command},
     {"quoted-insert", &quoted_insert_command},
+    {"tty-sigintr", &tty_sigintr_command},
     {NULL, NULL}
 };
 
@@ -43,6 +44,7 @@ const binding_t emacs_bindings[] = {
     {'\t', &complete_command},
     {CTRL('l'), &clear_screen_command},
     {CTRL('v'), &quoted_insert_command},
+    {CTRL('c'), &tty_sigintr_command},
     {0, NULL}
 };
 

src/key_bindings/signals.c

@@ -0,0 +1,42 @@
+/*
+** EPITECH PROJECT, 2020
+** ash
+** File description:
+** signals
+*/
+
+#include <signal.h>
+#include <stddef.h>
+#include <unistd.h>
+#include "shell.h"
+#include "key_functions.h"
+#include "my_ncurses.h"
+
+void on_sigint(int sig, siginfo_t *info, void *context)
+{
+    my_addstr(stdwin, "\n");
+}
+
+void setup_sigint(void)
+{
+    struct sigaction sa;
+
+    sa.sa_sigaction = &on_sigint;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = SA_SIGINFO;
+    sigaction(SIGINT, &sa, NULL);
+}
+
+int tty_sigintr_command(int key, buffer_t *buffer, env_t *env)
+{
+    if (buffer->buffer) {
+        buffer->buffer[0] = '\0';
+        buffer->pos = 0;
+        env->vars = my_setenv(env->vars, "?", "130");
+    }
+    if (env->window) {
+        my_addstr(env->window, "\n");
+        prompt_prepare(buffer, env);
+    }
+    return (0);
+}

src/shell.c

@@ -74,6 +74,7 @@ void start_shell(env_t *env)
     buffer_t buffer = {NULL, 0, 0, 0, 0, NULL, false};
     int key;
 
+    setup_sigint();
     if (isatty(0)) {
         env->window = my_initwin();
         prompt_prepare(&buffer, env);

tests/loop.c

@@ -0,0 +1,5 @@
+int main()
+{
+    while (1);
+    return (0);
+}