Change the return type of msgrcv() to ssize_t as required by POSIX.
It looks like the msgrcv() system call is already written in such a way that the size is internally computed as a size_t and written into all of td_retval[0]. This means that it is effectively already returning ssize_t. It's just that the userspace prototype doesn't match up.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=303435
@ -31,7 +31,7 @@
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.\" $FreeBSD$
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.\" $FreeBSD$
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.\"
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.\"
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.\"/
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.\"/
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.Dd July 9, 2009
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.Dd July 28, 2016
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.Dt MSGRCV 2
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.Dt MSGRCV 2
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.Os
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.Os
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.Sh NAME
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.Sh NAME
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@ -43,7 +43,7 @@
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.In sys/types.h
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.In sys/types.h
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.In sys/ipc.h
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.In sys/ipc.h
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.In sys/msg.h
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.In sys/msg.h
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.Ft int
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.Ft ssize_t
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.Fn msgrcv "int msqid" "void *msgp" "size_t msgsz" "long msgtyp" "int msgflg"
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.Fn msgrcv "int msqid" "void *msgp" "size_t msgsz" "long msgtyp" "int msgflg"
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.Sh DESCRIPTION
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.Sh DESCRIPTION
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The
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The
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@ -428,7 +428,7 @@
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225 AUE_MSGGET NOSTD { int msgget(key_t key, int msgflg); }
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225 AUE_MSGGET NOSTD { int msgget(key_t key, int msgflg); }
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226 AUE_MSGSND NOSTD { int msgsnd(int msqid, const void *msgp, \
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226 AUE_MSGSND NOSTD { int msgsnd(int msqid, const void *msgp, \
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size_t msgsz, int msgflg); }
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size_t msgsz, int msgflg); }
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227 AUE_MSGRCV NOSTD { int msgrcv(int msqid, void *msgp, \
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227 AUE_MSGRCV NOSTD { ssize_t msgrcv(int msqid, void *msgp, \
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size_t msgsz, long msgtyp, int msgflg); }
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size_t msgsz, long msgtyp, int msgflg); }
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228 AUE_SHMAT NOSTD { int shmat(int shmid, const void *shmaddr, \
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228 AUE_SHMAT NOSTD { int shmat(int shmid, const void *shmaddr, \
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int shmflg); }
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int shmflg); }
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@ -169,8 +169,7 @@ struct msqid_kernel {
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__BEGIN_DECLS
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__BEGIN_DECLS
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int msgctl(int, int, struct msqid_ds *);
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int msgctl(int, int, struct msqid_ds *);
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int msgget(key_t, int);
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int msgget(key_t, int);
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/* XXX return value should be ssize_t. */
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ssize_t msgrcv(int, void *, size_t, long, int);
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int msgrcv(int, void *, size_t, long, int);
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int msgsnd(int, const void *, size_t, int);
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int msgsnd(int, const void *, size_t, int);
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#if __BSD_VISIBLE
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#if __BSD_VISIBLE
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int msgsys(int, ...);
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int msgsys(int, ...);
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