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SIGQUIT, SIGHUP, SIGTERM */
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#include <stddef.h> /* NULL, size_t */
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#include <sys/types.h> /* ssize_t */
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#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE */
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#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE,
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#include <stdio.h> /* fprintf(), stderr, getline(),
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stdin, feof(), perror(), fputc(),
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stdout, getopt_long */
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#include <errno.h> /* errno, EINVAL */
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#include <iso646.h> /* or, not */
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#include <stdbool.h> /* bool, false, true */
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#include <string.h> /* strlen, rindex, strncmp, strcmp */
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#include <getopt.h> /* getopt_long */
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volatile bool quit_now = false;
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bool debug = false;
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int main(int argc, char **argv){
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struct termios t_new, t_old;
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char *buffer = NULL;
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int status = EXIT_SUCCESS;
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struct sigaction old_action,
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new_action = { .sa_handler = termination_handler,
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const char db[] = "--debug";
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char *basename = rindex(argv[0], '/');
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char *program_name = malloc(strlen(basename) + sizeof(db));
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if (program_name == NULL){
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program_name[0] = '\0';
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for (int i = 1; i < argc; i++){
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if (not strncmp(argv[i], db, 5)){
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strcat(strcat(strcat(program_name, db ), "="), basename);
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if(not strcmp(argv[i], db) or not strcmp(argv[i], program_name)){
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static struct option long_options[] = {
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{"debug", no_argument, (int *)&debug, 1},
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{"prefix", required_argument, 0, 'p'},
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ret = getopt_long (argc, argv, "p:", long_options, &option_index);
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fprintf(stderr, "bad arguments\n");
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fprintf(stderr, "Starting %s\n", argv[0]);
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status = EXIT_FAILURE;
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fprintf(stderr, "Password: ");
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fprintf(stderr, "%s Password: ", prefix);
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fprintf(stderr, "Password: ");
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ret = getline(&buffer, &n, stdin);
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fprintf(stdout, "%s", buffer);