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ccan: fix compilation error about const types #6950

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ccan: fix compilation error about const types #6950

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6 changes: 4 additions & 2 deletions ccan/ccan/fdpass/fdpass.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@
#include <errno.h>
#include <string.h>

#define BUF_SIZE CMSG_SPACE(sizeof(fd))

bool fdpass_send(int sockout, int fd)
{
/* From the cmsg(3) manpage: */
Expand All @@ -13,7 +15,7 @@ bool fdpass_send(int sockout, int fd)
char c = 0;
union { /* Ancillary data buffer, wrapped in a union
in order to ensure it is suitably aligned */
char buf[CMSG_SPACE(sizeof(fd))];
char buf[BUF_SIZE];
struct cmsghdr align;
} u;

Expand Down Expand Up @@ -50,7 +52,7 @@ int fdpass_recv(int sockin)
char c;
union { /* Ancillary data buffer, wrapped in a union
in order to ensure it is suitably aligned */
char buf[CMSG_SPACE(sizeof(fd))];
char buf[BUF_SIZE];
struct cmsghdr align;
} u;

Expand Down