Size optimization for rdate from Vladimir

diff --git a/rdate.c b/rdate.c
index 28e8732..5f31282 100644 (file)
--- a/rdate.c
+++ b/rdate.c
@@ -33,16 +33,11 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "busybox.h"
-#define BB_DECLARE_EXTERN
-#include "messages.c"
 
 
 static const int RFC_868_BIAS = 2208988800UL;
 
-static int setdate= 0;
-static int printdate= 0;
-
-static time_t askremotedate(char *host)
+static time_t askremotedate(const char *host)
 {
        struct hostent *h;
        struct sockaddr_in sin;
@@ -50,32 +45,25 @@ static time_t askremotedate(char *host)
        unsigned long int nett, localt;
        int fd;
 
-       if (!(h = gethostbyname(host))) {       /* get the IP addr */
-               perror_msg("%s", host);
-               return(-1);
-       }
-       if ((tserv = getservbyname("time", "tcp")) == NULL) { /* find port # */
-               perror_msg("%s", "time");
-               return(-1);
-       }
-       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {  /* get net connection */
-               perror_msg("%s", "socket");
-               return(-1);
-       }
+       if (!(h = gethostbyname(host)))         /* get the IP addr */
+               perror_msg_and_die("%s", host);
+
+       if ((tserv = getservbyname("time", "tcp")) == NULL)   /* find port # */
+               perror_msg_and_die("%s", "time");
+
+       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)    /* get net connection */
+               perror_msg_and_die("%s", "socket");
 
        memcpy(&sin.sin_addr, h->h_addr, sizeof(sin.sin_addr));
        sin.sin_port= tserv->s_port;
        sin.sin_family = AF_INET;
 
-       if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) < 0) {    /* connect to time server */
-               perror_msg("%s", host);
-               close(fd);
-               return(-1);
-       }
-       if (read(fd, (void *)&nett, 4) != 4) {  /* read time from server */
-               close(fd);
-               error_msg("%s did not send the complete time", host);
-       }
+       if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) < 0)      /* connect to time server */
+               perror_msg_and_die("%s", host);
+
+       if (read(fd, (void *)&nett, 4) != 4)    /* read time from server */
+               error_msg_and_die("%s did not send the complete time", host);
+
        close(fd);
 
        /* convert from network byte order to local byte order.
@@ -93,6 +81,8 @@ int rdate_main(int argc, char **argv)
 {
        time_t time;
        int opt;
+       int setdate = 0;
+       int printdate= 0;
 
        /* Interpret command line args */
        /* do special-case option parsing */
@@ -118,20 +108,18 @@ int rdate_main(int argc, char **argv)
        /* the default action is to set the date */
        if (printdate==0 && setdate==0) setdate++;
 
-       if (optind == argc) {
+       if (optind == argc)
                show_usage();
-       }
 
-       if ((time= askremotedate(argv[optind])) == (time_t)-1) {
-               return EXIT_FAILURE;
-       }
+       time = askremotedate(argv[optind]);
+
        if (setdate) {
                if (stime(&time) < 0)
                        perror_msg_and_die("Could not set time of day");
        }
-       if (printdate) {
+
+       if (printdate)
                printf("%s", ctime(&time));
-       }
 
        return EXIT_SUCCESS;
 }

diff --git a/util-linux/rdate.c b/util-linux/rdate.c
index 28e8732..5f31282 100644 (file)
--- a/util-linux/rdate.c
+++ b/util-linux/rdate.c
@@ -33,16 +33,11 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "busybox.h"
-#define BB_DECLARE_EXTERN
-#include "messages.c"
 
 
 static const int RFC_868_BIAS = 2208988800UL;
 
-static int setdate= 0;
-static int printdate= 0;
-
-static time_t askremotedate(char *host)
+static time_t askremotedate(const char *host)
 {
        struct hostent *h;
        struct sockaddr_in sin;
@@ -50,32 +45,25 @@ static time_t askremotedate(char *host)
        unsigned long int nett, localt;
        int fd;
 
-       if (!(h = gethostbyname(host))) {       /* get the IP addr */
-               perror_msg("%s", host);
-               return(-1);
-       }
-       if ((tserv = getservbyname("time", "tcp")) == NULL) { /* find port # */
-               perror_msg("%s", "time");
-               return(-1);
-       }
-       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {  /* get net connection */
-               perror_msg("%s", "socket");
-               return(-1);
-       }
+       if (!(h = gethostbyname(host)))         /* get the IP addr */
+               perror_msg_and_die("%s", host);
+
+       if ((tserv = getservbyname("time", "tcp")) == NULL)   /* find port # */
+               perror_msg_and_die("%s", "time");
+
+       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)    /* get net connection */
+               perror_msg_and_die("%s", "socket");
 
        memcpy(&sin.sin_addr, h->h_addr, sizeof(sin.sin_addr));
        sin.sin_port= tserv->s_port;
        sin.sin_family = AF_INET;
 
-       if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) < 0) {    /* connect to time server */
-               perror_msg("%s", host);
-               close(fd);
-               return(-1);
-       }
-       if (read(fd, (void *)&nett, 4) != 4) {  /* read time from server */
-               close(fd);
-               error_msg("%s did not send the complete time", host);
-       }
+       if (connect(fd, (struct sockaddr *)&sin, sizeof(sin)) < 0)      /* connect to time server */
+               perror_msg_and_die("%s", host);
+
+       if (read(fd, (void *)&nett, 4) != 4)    /* read time from server */
+               error_msg_and_die("%s did not send the complete time", host);
+
        close(fd);
 
        /* convert from network byte order to local byte order.
@@ -93,6 +81,8 @@ int rdate_main(int argc, char **argv)
 {
        time_t time;
        int opt;
+       int setdate = 0;
+       int printdate= 0;
 
        /* Interpret command line args */
        /* do special-case option parsing */
@@ -118,20 +108,18 @@ int rdate_main(int argc, char **argv)
        /* the default action is to set the date */
        if (printdate==0 && setdate==0) setdate++;
 
-       if (optind == argc) {
+       if (optind == argc)
                show_usage();
-       }
 
-       if ((time= askremotedate(argv[optind])) == (time_t)-1) {
-               return EXIT_FAILURE;
-       }
+       time = askremotedate(argv[optind]);
+
        if (setdate) {
                if (stime(&time) < 0)
                        perror_msg_and_die("Could not set time of day");
        }
-       if (printdate) {
+
+       if (printdate)
                printf("%s", ctime(&time));
-       }
 
        return EXIT_SUCCESS;
 }