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Simplify setsockopt() casting workaround

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On Win32, the third setsockopt parameter has type (char *) while on POSIX
systems it is (void *). However, given that it is a no-op cast to go from a
char pointer to a void pointer, we can cast to a char pointer (with a
possible const modifier) on all platforms and satisfy the compiler.

Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Dan McGee 2011-09-19 10:55:27 -05:00 committed by Max Kellermann
parent 533a6b0240
commit 8176880173
2 changed files with 6 additions and 20 deletions
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4
src/output/raop_output_plugin.c
View File

@ -328,7 +328,7 @@ open_udp_socket(char *hostname, unsigned short *port,
GError **error_r)
{
int sd;
int size = 30000;
const int size = 30000;
/* socket creation */
sd = socket(PF_INET, SOCK_DGRAM, 0);
@ -338,7 +338,7 @@ open_udp_socket(char *hostname, unsigned short *port,
g_strerror(errno));
return -1;
}
if (setsockopt(sd, SOL_SOCKET, SO_SNDBUF, (void *) &size, sizeof(size)) < 0) {
if (setsockopt(sd, SOL_SOCKET, SO_SNDBUF, (const char *) &size, sizeof(size)) < 0) {
g_set_error(error_r, raop_output_quark(), errno,
"failed to set UDP buffer size: %s",
g_strerror(errno));

22
src/socket_util.c
View File

@ -50,9 +50,6 @@ socket_bind_listen(int domain, int type, int protocol,
{
int fd, ret;
const int reuse = 1;
#ifdef HAVE_STRUCT_UCRED
int passcred = 1;
#endif
fd = socket_cloexec_nonblock(domain, type, protocol);
if (fd < 0) {
@ -61,14 +58,8 @@ socket_bind_listen(int domain, int type, int protocol,
return -1;
}
#ifdef WIN32
const char *optval = (const char *)&reuse;
#else
const void *optval = &reuse;
#endif
ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
optval, sizeof(reuse));
(const char *) &reuse, sizeof(reuse));
if (ret < 0) {
g_set_error(error, listen_quark(), errno,
"setsockopt() failed: %s", g_strerror(errno));
@ -93,7 +84,8 @@ socket_bind_listen(int domain, int type, int protocol,
}
#ifdef HAVE_STRUCT_UCRED
setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &passcred, sizeof(passcred));
setsockopt(fd, SOL_SOCKET, SO_PASSCRED,
(const char *) &reuse, sizeof(reuse));
#endif
return fd;
@ -104,12 +96,6 @@ socket_keepalive(int fd)
{
const int reuse = 1;
#ifdef WIN32
const char *optval = (const char *)&reuse;
#else
const void *optval = &reuse;
#endif
return setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
optval, sizeof(reuse));
(const char *)&reuse, sizeof(reuse));
}