From f6b270f390f1ff226305888b587dead373884aaa Mon Sep 17 00:00:00 2001 From: Christian Hesse Date: Tue, 6 May 2014 15:44:46 +0200 Subject: add a verbose option --- dyndhcpd.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'dyndhcpd.c') diff --git a/dyndhcpd.c b/dyndhcpd.c index a9c0def..bbbf4d7 100644 --- a/dyndhcpd.c +++ b/dyndhcpd.c @@ -61,7 +61,7 @@ char * str_replace(char * original, const char * pattern, const char * replaceme /*** main ***/ int main(int argc, char ** argv) { - int i, rc = EXIT_FAILURE; + int i, rc = EXIT_FAILURE, verbose = 0; struct ifaddrs *ifaddr = NULL, *ifa; struct sockaddr_in * s4; @@ -90,8 +90,11 @@ int main(int argc, char ** argv) { case '-': switch ((int)argv[i][1]) { case 'h': - fprintf(stderr, "usage: %s [-h] [-iINTERFACE]\n", argv[0]); + fprintf(stderr, "usage: %s [-h] [-iINTERFACE] [-v]\n", argv[0]); return EXIT_SUCCESS; + case 'v': + verbose++; + break; case 'i': interface = argv[i] + 2; if (strlen(interface) == 0) { @@ -195,7 +198,8 @@ int main(int argc, char ** argv) { inet_ntop(AF_INET, &s_minhost, c_minhost, INET_ADDRSTRLEN) != NULL && inet_ntop(AF_INET, &s_maxhost, c_maxhost, INET_ADDRSTRLEN) != NULL) { /* print information */ - printf("Interface: %s\n" + if (verbose) + printf("Interface: %s\n" "Domain: %s\n" "Host Address: %s\n" "Network Address: %s\n" @@ -263,12 +267,18 @@ int main(int argc, char ** argv) { sprintf(leasesfile, LEASESFILE, interface); /* check if leases file exists, create it if it does not */ - if (access(leasesfile, R_OK) == -1) + if (access(leasesfile, R_OK) == -1) { + if (verbose) + printf("Creating leases file %s.\n", leasesfile); fclose(fopen(leasesfile, "w")); + } /* execute dhcp daemon, replace the current process * dyndhcpd is cleared from memory here and code below is not execuded if * everything goes well */ + if (verbose > 1) + printf("Running: dhcpd -f -d -q -4 -pf %s -lf %s -cf %s %s\n", + pidfile, leasesfile, filename, interface); execlp("/usr/bin/dhcpd", "dhcpd", "-f", "-d", "-q", "-4", "-pf", pidfile, "-lf", leasesfile, "-cf", filename, interface, NULL); -- cgit v1.2.3-54-g00ecf