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Helper code cleanup

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Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
This commit is contained in:
Claudio Matsuoka
2008-02-17 08:42:57 -03:00
parent d17c3160bd
commit cdbc2c536d
1 changed files with 21 additions and 25 deletions
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helpers.c
+21 -25
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@@ -43,20 +43,22 @@ void ifconfig(char *name, char *inet, char *mask, int up)
memset(&ifr, 0, sizeof (ifr));
strncpy(ifr.ifr_name, name, IFNAMSIZ);
a->sin_family = AF_INET;
inet_aton(inet, &a->sin_addr);
if (up) {
inet_aton(inet, &a->sin_addr);
ioctl(sock, SIOCSIFADDR, &ifr);
inet_aton(mask, &a->sin_addr);
ioctl(sock, SIOCSIFNETMASK, &ifr);
ioctl(sock, SIOCGIFFLAGS, &ifr);
ifr.ifr_flags |= IFF_UP;
ioctl(sock, SIOCSIFFLAGS, &ifr);
} else {
ioctl(sock, SIOCGIFFLAGS, &ifr);
ifr.ifr_flags &= ~IFF_UP;
ioctl(sock, SIOCSIFFLAGS, &ifr);
}
ioctl(sock, SIOCGIFFLAGS, &ifr);
if (up)
ifr.ifr_flags |= IFF_UP;
else
ifr.ifr_flags &= ~IFF_UP;
ioctl(sock, SIOCSIFFLAGS, &ifr);
close(sock);
}
@@ -68,25 +70,19 @@ void copyfile(char *src, char *dst, int size)
char buffer[BUF_SIZE];
int s, d, n;
/* Size == 0 means copy entire file */
if (size == 0)
size = INT_MAX;
if ((s = open(src, O_RDONLY)) >= 0) {
if ((d = open(dst, O_WRONLY | O_CREAT, 0644)) >= 0) {
/* Size == 0 means copy entire file */
if (size == 0) {
do {
if ((n = read(s, buffer, BUF_SIZE)) > 0)
write(d, buffer, n);
} while (n == BUF_SIZE);
} else {
do {
int csize = size > BUF_SIZE ?
BUF_SIZE : size;
if ((n = read(s, buffer, csize)) > 0)
write(d, buffer, n);
size -= csize;
} while (size > 0 && n == BUF_SIZE);
}
do {
int csize = size > BUF_SIZE ? BUF_SIZE : size;
if ((n = read(s, buffer, csize)) > 0)
write(d, buffer, n);
size -= csize;
} while (size > 0 && n == BUF_SIZE);
close(d);
}
close(s);