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(struct cmsghdr): Don't declare __cmsg_data field if its size would be bigger

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than 0.
(CMSG_DATA): Adjust accordingly.
This commit is contained in:
Ulrich Drepper 2001-09-26 05:23:10 +00:00
parent 8755441d32
commit 916ea7e833
3 changed files with 9 additions and 8 deletions
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7
sysdeps/unix/sysv/aix/bits/socket.h
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@ -203,14 +203,13 @@ struct cmsghdr
of cmsghdr structure. */
int cmsg_level; /* Originating protocol. */
int cmsg_type; /* Protocol specific type. */
#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
unsigned char __cmsg_data[0]; /* Ancillary data. */
/* XXX Perhaps this should be removed. */
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
#endif
};
/* Ancillary data object manipulation macros. */
#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
#else
# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))

5
sysdeps/unix/sysv/linux/alpha/bits/socket.h
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@ -233,12 +233,13 @@ struct cmsghdr
of cmsghdr structure. */
int cmsg_level; /* Originating protocol. */
int cmsg_type; /* Protocol specific type. */
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
/* XXX Perhaps this should be removed. */
#endif
};
/* Ancillary data object manipulation macros. */
#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
#else
# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))

5
sysdeps/unix/sysv/linux/mips/bits/socket.h
View File

@ -233,12 +233,13 @@ struct cmsghdr
of cmsghdr structure. */
int cmsg_level; /* Originating protocol. */
int cmsg_type; /* Protocol specific type. */
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
/* XXX Perhaps this should be removed. */
#endif
};
/* Ancillary data object manipulation macros. */
#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
#else
# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))