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Check which getprotobynumber_r() variant to use

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This commit is contained in:
Gerhard Rieger 2021-11-21 11:15:08 +01:00
parent 33a5019b18
commit ffa09eac00
3 changed files with 27 additions and 4 deletions
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8
CHANGES
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@ -2,7 +2,13 @@
Corrections:
Socat 1.7.4.2 did not compile on OmniOS (and probably other OpenSolaris
distributions)
Thanks to Andy Fiddaman for sending a patch
Thanks to Andy Fiddaman for sending a patch.
Socat since 1.7.4.0 did not compile on Solaris and its derivatives
because the getprotobynumber_r() function prototype differ from the
Linux versino.
configure now checks for the variant.
Thanks to Robert Zybeck for reporting this issue.
####################### V 1.7.4.2:

19
configure.ac
View file

@ -134,6 +134,23 @@ if test $sc_cv_have_prototype_hstrerror = yes; then
fi
AC_MSG_RESULT($sc_cv_have_prototype_hstrerror)
# getprotobynumber_r() is not standardized
AC_MSG_CHECKING(for getprotobynumber_r() variant)
AC_CACHE_VAL(sc_cv_getprotobynumber_r,
[AC_TRY_COMPILE([#include <stddef.h>
#include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024,NULL);],
[sc_cv_getprotobynumber_r=1; tmp_bynum_variant=Linux],
[AC_TRY_COMPILE([#include <stddef.h>
#include <netdb.h>],[getprotobynumber_r(1,NULL,NULL,1024);],
[sc_cv_getprotobynumber_r=2; tmp_bynum_variant=Solaris],
# there is a 3 arg variant in AIX, but its doc is limited
[sc_cv_getprotobynumber_r=]
)])])
if test "$sc_cv_getprotobynumber_r"; then
AC_DEFINE_UNQUOTED(HAVE_GETPROTOBYNUMBER_R, $sc_cv_getprotobynumber_r)
fi
AC_MSG_RESULT($sc_cv_getprotobynumber_r /* $tmp_bynum_variant */)
AC_MSG_CHECKING(whether to include help)
AC_ARG_ENABLE(help, [ --disable-help disable help],
@ -811,7 +828,7 @@ AC_TYPE_SIGNAL
AC_FUNC_STRFTIME
AC_CHECK_FUNCS(putenv select pselect poll socket strtod strtol)
AC_CHECK_FUNCS(strtoul uname getpgid getsid gethostbyname getaddrinfo)
AC_CHECK_FUNCS(getprotobynumber getprotobynumber_r)
AC_CHECK_FUNCS(getprotobynumber)
AC_CHECK_FUNCS(setgroups inet_aton)
AC_CHECK_FUNCS(grantpt unlockpt)

4
fdname.c
View file

@ -253,14 +253,14 @@ int sockname(int fd, FILE *outfile, char style) {
#endif
#if defined(SO_PROTOCOL) || defined(SO_PROTOTYPE)
#if HAVE_GETPROTOBYNUMBER_R
#if HAVE_GETPROTOBYNUMBER_R==1 /* Linux */
rc = getprotobynumber_r(proto, &protoent, protoname, sizeof(protoname), &protoentp);
if (protoentp == NULL) {
Warn2("sockname(): getprotobynumber_r(proto=%d, ...): %s",
proto, strerror(rc));
}
strncpy(protoname, protoentp->p_name, sizeof(protoname));
#elif HAVE_GETPROTOBYNUMBER
#elif HAVE_GETPROTOBYNUMBER_R==2 /* Solaris */
protoentp = getprotobynumber(proto);
strncpy(protoname, protoentp->p_name, sizeof(protoname));
#else