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/*
* UNG's Not GNU
*
* Copyright (c) 2011, Jakob Kaivo <jakob@kaivo.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#define _XOPEN_SOURCE 700
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <utmpx.h>
#include <time.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
char *user = NULL;
char *terminal = NULL;
setlocale(LC_ALL, "");
int c;
while ((c = getopt(argc, argv, "")) != -1) {
return 1;
}
if (argc == optind + 1) {
user = argv[optind];
} else if (argc == optind + 2) {
user = argv[optind];
terminal = argv[optind + 1];
} else {
return 1;
}
struct utmpx *ut = NULL;
setutxent();
while ((ut = getutxent()) != NULL) {
if ((ut->ut_type == USER_PROCESS || ut->ut_type == LOGIN_PROCESS) && !strcmp(user, ut->ut_user)) {
if (terminal == NULL || !strcmp(terminal, ut->ut_line)) {
break;
}
}
}
endutxent();
if (ut == NULL) {
return 1;
}
char line[PATH_MAX];
sprintf(line, "/dev/%s", ut->ut_line);
FILE *out = fopen(line, "w");
char date[PATH_MAX];
time_t now = time(NULL);
struct tm *tm = localtime(&now);
strftime(date, sizeof(date), "%c", tm);
terminal = ttyname(STDIN_FILENO);
if (!strncmp(terminal, "/dev/", 5)) {
terminal += 5;
}
fprintf(out, "Message from %s (%s) [%s]...\n", getlogin(), terminal, date);
printf("\a\a");
fflush(stdout);
ssize_t nread = 0;
size_t len = 0;
char *buf = NULL;
while ((nread = getline(&buf, &len, stdin)) != -1) {
fwrite(buf, 1, nread, out);
}
fprintf(out, "EOT\n");
fclose(out);
return 0;
}
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