Added some files
This commit is contained in:
parent
e02fcd47dc
commit
78f4d71855
8 changed files with 432 additions and 0 deletions
17
Makefile
Normal file
17
Makefile
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@ -0,0 +1,17 @@
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CC=cc
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CFLAGS=-c -Wall -Wextra -fPIC
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LDFLAGS=-lreadline
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LD=cc
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SRC=main.c loop.c interface.c
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OBJ=$(SRC:.c=.o)
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EXE=telegram
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all: $(SRC) $(EXE)
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$(EXE): $(OBJ)
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$(LD) $(LDFLAGS) $(OBJ) -o $@
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.c.o:
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$(CC) $(CFLAGS) $< -o $@
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6
include.h
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6
include.h
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#ifndef __INCLUDE_H__
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#define __INCLUDE_H__
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#define UU __attribute__ ((unused))
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#endif
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156
interface.c
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156
interface.c
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#define _GNU_SOURCE
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#include <readline/readline.h>
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#include <readline/history.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "include.h"
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char *default_prompt = ">";
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char *get_default_prompt (void) {
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return default_prompt;
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}
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char *complete_none (const char *text UU, int state UU) {
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return 0;
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}
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char *commands[] = {
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"help",
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"msg",
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0 };
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int commands_flags[] = {
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070,
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072,
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};
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char *a = 0;
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char **user_list = &a;
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char **chat_list = &a;
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int init_token (char **q) {
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char *r = *q;
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while (*r == ' ') { r ++; }
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if (!*r) { return 0; }
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q = &r;
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return 1;
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}
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char *get_token (char **q, int *l) {
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char *r = *q;
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while (*r == ' ') { r ++; }
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if (!*r) {
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q = &r;
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*l = 0;
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return 0;
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}
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int neg = 0;
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char *s = r;
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while (*r && (*r != ' ' || neg)) {
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if (*r == '\\') {
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neg = 1 - neg;
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} else {
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neg = 0;
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}
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}
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q = &r;
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*l = r - s;
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return s;
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}
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int get_complete_mode (void) {
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char *q = rl_line_buffer;
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if (!init_token (&q)) { return 0; }
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int l = 0;
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char *r = get_token (&q, &l);
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if (!*q) { return 0; }
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char **command = commands;
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int n = 0;
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int flags = -1;
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while (*command) {
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if ((int)strlen (*command) == l && !memcmp (r, *command, l)) {
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flags = commands_flags[n];
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break;
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}
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n ++;
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command ++;
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}
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if (flags == -1) {
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return -1;
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}
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int s = 0;
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while (1) {
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get_token (&q, &l);
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if (!*q) { return flags & 7; }
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s ++;
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if (s <= 4) { flags >>= 3; }
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}
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}
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int complete_string_list (char **list, int index, const char *text, int len, char **R) {
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index ++;
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int cc = 0;
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while (cc <= 1 && list[index] && strncmp (list[index], text, len)) {
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index ++;
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if (!list[index]) { index = 0; cc ++; }
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}
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if (list[index] && cc <= 1) {
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*R = strdup (list[index]);
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return index;
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} else {
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*R = 0;
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return -1;
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}
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}
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char *command_generator (const char *text, int state) {
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static int len, index, mode;
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if (!state) {
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len = strlen (text);
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index = -1;
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rl_line_buffer[rl_point] = '\0'; /* the effect should be such
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* that the cursor position
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* is at the end of line for
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* the auto completion regex
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* above (note the $ at end)
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*/
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mode = get_complete_mode ();
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} else {
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if (index == -1) { return 0; }
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}
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if (mode == -1) { return 0; }
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char *R = 0;
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switch (mode & 7) {
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case 0:
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index = complete_string_list (commands, index, text, len, &R);
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return R;
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case 1:
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index = complete_string_list (user_list, index, text, len, &R);
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return R;
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case 2:
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index = complete_string_list (chat_list, index, text, len, &R);
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return R;
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case 3:
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return rl_filename_completion_function(text,state);
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default:
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return 0;
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}
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}
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char **complete_text (char *text, int start UU, int end UU) {
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return (char **) rl_completion_matches (text, command_generator);
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}
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void interpreter (char *line UU) {
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assert (0);
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}
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7
interface.h
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7
interface.h
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#ifndef __INTERFACE_H__
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#define __INTERFACE_H__
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char *get_default_prompt (void);
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char *complete_none (const char *text, int state);
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char **complete_text (char *text, int start, int end);
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void interpreter (char *line);
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#endif
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44
loop.c
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44
loop.c
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#define READLINE_CALLBACKS
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <readline/readline.h>
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#include <readline/history.h>
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#include "interface.h"
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extern char *default_username;
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extern char *auth_token;
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void set_default_username (const char *s);
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int main_loop (void) {
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assert (0);
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}
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int loop (void) {
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size_t size = 0;
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char *user = default_username;
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if (!user && !auth_token) {
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printf ("Telephone number (with '+' sign): ");
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if (getline (&user, &size, stdin) == -1) {
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perror ("getline()");
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exit (EXIT_FAILURE);
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}
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user[strlen (user) - 1] = '\0';
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set_default_username (user);
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}
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fflush (stdin);
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rl_callback_handler_install (get_default_prompt (), interpreter);
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rl_attempted_completion_function = (CPPFunction *) complete_text;
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rl_completion_entry_function = complete_none;
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return main_loop ();
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}
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4
loop.h
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4
loop.h
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#ifndef __LOOP_H__
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#define __LOOP_H__
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int loop (void);
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#endif
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198
main.c
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198
main.c
Normal file
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/*
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main.c: main initialization file
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#include <termios.h>
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#include <unistd.h>
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#include <assert.h>
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#include <readline/readline.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <fcntl.h>
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#include "loop.h"
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#define PROGNAME "telegram-client"
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#define VERSION "0.01"
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#define CONFIG_DIRECTORY ".telegram/"
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#define CONFIG_FILE CONFIG_DIRECTORY "config"
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#define DOWNLOADS_DIRECTORY "downloads/"
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#define CONFIG_DIRECTORY_MODE 0700
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#define DEFAULT_CONFIG_CONTENTS \
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"# This is an empty config file\n" \
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"# Feel free to put something here\n"
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char *default_username;
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int setup_mode;
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char *auth_token;
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void set_default_username (const char *s) {
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if (default_username) {
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free (default_username);
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}
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default_username = strdup (s);
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}
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void set_setup_mode (void) {
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setup_mode = 1;
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}
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/* {{{ TERMINAL */
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tcflag_t old_lflag;
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cc_t old_vtime;
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struct termios term;
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void get_terminal_attributes (void) {
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if (tcgetattr (STDIN_FILENO, &term) < 0) {
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perror ("tcgetattr()");
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exit (EXIT_FAILURE);
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}
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old_lflag = term.c_lflag;
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old_vtime = term.c_cc[VTIME];
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}
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/* }}} */
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char *get_home_directory (void) {
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struct passwd *current_passwd;
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uid_t user_id;
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setpwent ();
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user_id = getuid ();
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while ((current_passwd = getpwent ())) {
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if (current_passwd->pw_uid == user_id) {
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return current_passwd->pw_dir;
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}
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}
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return 0;
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}
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char *get_config_directory (void) {
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char *config_directory;
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int length = strlen (get_home_directory ()) + strlen (CONFIG_DIRECTORY) + 2;
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config_directory = (char *) calloc (length, sizeof (char));
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sprintf (config_directory, "%s/" CONFIG_DIRECTORY,
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get_home_directory ());
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return config_directory;
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}
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char *get_config_filename (void) {
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char *config_filename;
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int length = strlen (get_home_directory ()) + strlen (CONFIG_FILE) + 2;
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config_filename = (char *) calloc (length, sizeof (char));
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sprintf (config_filename, "%s/" CONFIG_FILE, get_home_directory ());
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return config_filename;
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}
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char *get_downloads_directory (void)
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{
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char *downloads_directory;
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int length = strlen (get_config_directory ()) + strlen (DOWNLOADS_DIRECTORY) + 2;
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downloads_directory = (char *) calloc (length, sizeof (char));
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sprintf (downloads_directory, "%s/" DOWNLOADS_DIRECTORY, get_config_directory ());
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return downloads_directory;
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}
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void running_for_first_time (void) {
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struct stat *config_file_stat = NULL;
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int config_file_fd;
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char *config_directory = get_config_directory ();
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char *config_filename = get_config_filename ();
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char *downloads_directory = get_downloads_directory ();
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if (mkdir (config_directory, CONFIG_DIRECTORY_MODE) != 0) {
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return;
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} else {
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printf ("\nRunning " PROGNAME " for first time!!\n");
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printf ("[%s] created\n", config_directory);
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}
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// see if config file is there
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if (stat (config_filename, config_file_stat) != 0) {
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// config file missing, so touch it
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config_file_fd = open (config_filename, O_CREAT | O_RDWR, S_IRWXU);
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if (config_file_fd == -1) {
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perror ("open[config_file]");
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exit (EXIT_FAILURE);
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}
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if (fchmod (config_file_fd, CONFIG_DIRECTORY_MODE) != 0) {
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perror ("fchmod[" CONFIG_FILE "]");
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exit (EXIT_FAILURE);
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}
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if (write (config_file_fd, DEFAULT_CONFIG_CONTENTS, strlen (DEFAULT_CONFIG_CONTENTS)) <= 0) {
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perror ("write[config_file]");
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exit (EXIT_FAILURE);
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}
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close (config_file_fd);
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printf ("[%s] created\n", config_filename);
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/* create downloads directory */
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if (mkdir (downloads_directory, 0755) !=0) {
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perror ("creating download directory");
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exit (EXIT_FAILURE);
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}
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}
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set_setup_mode ();
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}
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void inner_main (void) {
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loop ();
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}
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void usage (void) {
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printf ("%s [-u username]\n", PROGNAME);
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exit (1);
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}
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void args_parse (int argc, char **argv) {
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int opt = 0;
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while ((opt = getopt (argc, argv, "u:h")) != -1) {
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switch (opt) {
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case 'u':
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set_default_username (optarg);
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break;
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case 'h':
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default:
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usage ();
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break;
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}
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}
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}
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int main (int argc, char **argv) {
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running_for_first_time ();
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get_terminal_attributes ();
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args_parse (argc, argv);
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inner_main ();
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return 0;
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}
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0
telegram.h
Normal file
0
telegram.h
Normal file
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