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libcasper(3): Export functions to C++
We must wrap C declarations in __BEGIN / __END_DECLS to avoid C++ name-mangling of the declaration when including the C header; name-mangling causes the linker to attempt to locate the wrong (C++ ABI) symbol name. Reviewed by: markj, oshogbo (earlier version both) Differential Revision: https://reviews.freebsd.org/D24323
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=359696
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@ -36,12 +36,15 @@
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#define WITH_CASPER
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#endif
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#include <sys/cdefs.h>
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#include <sys/socket.h> /* socklen_t */
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struct addrinfo;
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struct hostent;
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#ifdef WITH_CASPER
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__BEGIN_DECLS
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struct hostent *cap_gethostbyname(cap_channel_t *chan, const char *name);
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struct hostent *cap_gethostbyname2(cap_channel_t *chan, const char *name,
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int type);
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@ -58,6 +61,8 @@ int cap_dns_type_limit(cap_channel_t *chan, const char * const *types,
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size_t ntypes);
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int cap_dns_family_limit(cap_channel_t *chan, const int *families,
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size_t nfamilies);
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__END_DECLS
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#else
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#define cap_gethostbyname(chan, name) gethostbyname(name)
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#define cap_gethostbyname2(chan, name, type) gethostbyname2(name, type)
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@ -31,6 +31,7 @@
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#ifndef _FILEARGS_H_
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#define _FILEARGS_H_
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#include <sys/cdefs.h>
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#include <sys/dnv.h>
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#include <sys/nv.h>
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@ -44,6 +45,8 @@ struct fileargs;
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typedef struct fileargs fileargs_t;
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struct stat;
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__BEGIN_DECLS
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fileargs_t *fileargs_init(int argc, char *argv[], int flags, mode_t mode,
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cap_rights_t *rightsp, int operations);
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fileargs_t *fileargs_cinit(cap_channel_t *cas, int argc, char *argv[],
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@ -57,6 +60,9 @@ FILE *fileargs_fopen(fileargs_t *fa, const char *name, const char *mode);
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fileargs_t *fileargs_wrap(cap_channel_t *chan, int fdflags);
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cap_channel_t *fileargs_unwrap(fileargs_t *fa, int *fdflags);
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__END_DECLS
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#else
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typedef struct fileargs {
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int fa_flags;
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@ -36,7 +36,11 @@
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#define WITH_CASPER
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#endif
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#include <sys/cdefs.h>
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#ifdef WITH_CASPER
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__BEGIN_DECLS
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struct group *cap_getgrent(cap_channel_t *chan);
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struct group *cap_getgrnam(cap_channel_t *chan, const char *name);
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struct group *cap_getgrgid(cap_channel_t *chan, gid_t gid);
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@ -58,6 +62,9 @@ int cap_grp_limit_fields(cap_channel_t *chan, const char * const *fields,
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size_t nfields);
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int cap_grp_limit_groups(cap_channel_t *chan, const char * const *names,
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size_t nnames, const gid_t *gids, size_t ngids);
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__END_DECLS
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#else
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#define cap_getgrent(chan) getgrent()
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#define cap_getgrnam(chan, name) getgrnam(name)
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@ -36,7 +36,11 @@
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#define WITH_CASPER
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#endif
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#include <sys/cdefs.h>
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#ifdef WITH_CASPER
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__BEGIN_DECLS
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struct passwd *cap_getpwent(cap_channel_t *chan);
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struct passwd *cap_getpwnam(cap_channel_t *chan, const char *login);
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struct passwd *cap_getpwuid(cap_channel_t *chan, uid_t uid);
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@ -58,6 +62,9 @@ int cap_pwd_limit_fields(cap_channel_t *chan, const char * const *fields,
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size_t nfields);
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int cap_pwd_limit_users(cap_channel_t *chan, const char * const *names,
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size_t nnames, uid_t *uids, size_t nuids);
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__END_DECLS
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#else
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#define cap_getpwent(chan) getpwent()
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#define cap_getpwnam(chan, login) getpwnam(login)
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@ -36,12 +36,16 @@
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#define WITH_CASPER
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#endif
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#include <sys/cdefs.h>
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#ifdef WITH_CASPER
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#define CAP_SYSCTL_READ 0x01
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#define CAP_SYSCTL_WRITE 0x02
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#define CAP_SYSCTL_RDWR (CAP_SYSCTL_READ | CAP_SYSCTL_WRITE)
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#define CAP_SYSCTL_RECURSIVE 0x04
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__BEGIN_DECLS
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int cap_sysctl(cap_channel_t *chan, const int *name, u_int namelen, void *oldp,
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size_t *oldlenp, const void *newp, size_t newlen);
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int cap_sysctlbyname(cap_channel_t *chan, const char *name, void *oldp,
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@ -58,6 +62,9 @@ cap_sysctl_limit_t *cap_sysctl_limit_name(cap_sysctl_limit_t *limit,
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cap_sysctl_limit_t *cap_sysctl_limit_mib(cap_sysctl_limit_t *limit,
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const int *mibp, u_int miblen, int flags);
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int cap_sysctl_limit(cap_sysctl_limit_t *limit);
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__END_DECLS
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#else /* !WITH_CASPER */
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#define cap_sysctl(chan, name, namelen, oldp, oldlenp, newp, newlen) \
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sysctl((name), (namelen), (oldp), (oldlenp), (newp), (newlen))
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@ -29,7 +29,11 @@
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#ifndef _CAP_SYSLOG_H_
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#define _CAP_SYSLOG_H_
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#include <sys/cdefs.h>
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#ifdef WITH_CASPER
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__BEGIN_DECLS
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void cap_syslog(cap_channel_t *chan, int pri,
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const char *fmt, ...) __printflike(3, 4);
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void cap_vsyslog(cap_channel_t *chan, int priority, const char *fmt,
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@ -40,6 +44,9 @@ void cap_openlog(cap_channel_t *chan, const char *ident, int logopt,
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void cap_closelog(cap_channel_t *chan);
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int cap_setlogmask(cap_channel_t *chan, int maskpri);
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__END_DECLS
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#else
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#define cap_syslog(chan, pri, ...) syslog(pri, __VA_ARGS__)
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#define cap_vsyslog(chan, pri, fmt, ap) vsyslog(pri, fmt, ap)
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