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/*
* pkd_util.c -- pkd utilities
*
* (c) 2014 Jon Simons
*/
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include "pkd_client.h"
#include "pkd_util.h"
/**
* @brief runs system(3); exits if that is interrupted with SIGINT/QUIT
* @returns 0 upon success, non-zero otherwise
*/
int system_checked(const char *cmd) {
int rc = system(cmd);
if (WIFSIGNALED(rc) &&
((WTERMSIG(rc) == SIGINT) || (WTERMSIG(rc) == SIGQUIT))) {
exit(1);
}
if (rc == -1) {
return -1;
}
return WEXITSTATUS(rc);
}
static int bin_exists(const char *binary) {
char bin[1024] = { 0 };
snprintf(&bin[0], sizeof(bin), "type %s 1>/dev/null 2>/dev/null", binary);
return (system_checked(bin) == 0);
}
int is_openssh_client_enabled(void) {
return (bin_exists(OPENSSH_BINARY) && bin_exists(OPENSSH_KEYGEN));
}
int is_dropbear_client_enabled(void) {
return (bin_exists(DROPBEAR_BINARY) && bin_exists(DROPBEAR_KEYGEN));
}
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