1*aa693e99SJason King /* 2*aa693e99SJason King * Copyright 2016 Chris Torek <chris.torek@gmail.com> 3*aa693e99SJason King * All rights reserved 4*aa693e99SJason King * 5*aa693e99SJason King * Redistribution and use in source and binary forms, with or without 6*aa693e99SJason King * modification, are permitted providing that the following conditions 7*aa693e99SJason King * are met: 8*aa693e99SJason King * 1. Redistributions of source code must retain the above copyright 9*aa693e99SJason King * notice, this list of conditions and the following disclaimer. 10*aa693e99SJason King * 2. Redistributions in binary form must reproduce the above copyright 11*aa693e99SJason King * notice, this list of conditions and the following disclaimer in the 12*aa693e99SJason King * documentation and/or other materials provided with the distribution. 13*aa693e99SJason King * 14*aa693e99SJason King * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15*aa693e99SJason King * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16*aa693e99SJason King * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*aa693e99SJason King * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 18*aa693e99SJason King * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*aa693e99SJason King * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*aa693e99SJason King * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*aa693e99SJason King * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 22*aa693e99SJason King * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 23*aa693e99SJason King * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24*aa693e99SJason King * POSSIBILITY OF SUCH DAMAGE. 25*aa693e99SJason King * 26*aa693e99SJason King */ 27*aa693e99SJason King 28*aa693e99SJason King #ifndef LIB9P_RFUNCS_H 29*aa693e99SJason King #define LIB9P_RFUNCS_H 30*aa693e99SJason King 31*aa693e99SJason King #if defined(__illumos__) && !defined(_POSIX_PTHREAD_SEMANTICS) 32*aa693e99SJason King #define _POSIX_PTHREAD_SEMANTICS 1 33*aa693e99SJason King #endif 34*aa693e99SJason King 35*aa693e99SJason King #include <grp.h> 36*aa693e99SJason King #include <pwd.h> 37*aa693e99SJason King #include <string.h> 38*aa693e99SJason King 39*aa693e99SJason King #if defined(WITH_CASPER) 40*aa693e99SJason King #include <libcasper.h> 41*aa693e99SJason King #endif 42*aa693e99SJason King 43*aa693e99SJason King /* 44*aa693e99SJason King * Reentrant, optionally-malloc-ing versions of 45*aa693e99SJason King * basename() and dirname(). 46*aa693e99SJason King */ 47*aa693e99SJason King char *r_basename(const char *, char *, size_t); 48*aa693e99SJason King char *r_dirname(const char *, char *, size_t); 49*aa693e99SJason King 50*aa693e99SJason King /* 51*aa693e99SJason King * Yuck: getpwuid, getgrgid are not thread-safe, and the 52*aa693e99SJason King * POSIX replacements (getpwuid_r, getgrgid_r) are horrible. 53*aa693e99SJason King * This is to allow us to loop over the get.*_r calls with ever 54*aa693e99SJason King * increasing buffers until they succeed or get unreasonable 55*aa693e99SJason King * (same idea as the libc code for the non-reentrant versions, 56*aa693e99SJason King * although prettier). 57*aa693e99SJason King * 58*aa693e99SJason King * The getpwuid/getgrgid functions auto-init one of these, 59*aa693e99SJason King * but the caller must call r_pgfree() when done with the 60*aa693e99SJason King * return values. 61*aa693e99SJason King * 62*aa693e99SJason King * If we need more later, we may have to expose the init function. 63*aa693e99SJason King */ 64*aa693e99SJason King struct r_pgdata { 65*aa693e99SJason King char *r_pgbuf; 66*aa693e99SJason King size_t r_pgbufsize; 67*aa693e99SJason King union { 68*aa693e99SJason King struct passwd un_pw; 69*aa693e99SJason King struct group un_gr; 70*aa693e99SJason King } r_pgun; 71*aa693e99SJason King }; 72*aa693e99SJason King 73*aa693e99SJason King /* void r_pginit(struct r_pgdata *); */ 74*aa693e99SJason King void r_pgfree(struct r_pgdata *); 75*aa693e99SJason King struct passwd *r_getpwuid(uid_t, struct r_pgdata *); 76*aa693e99SJason King struct group *r_getgrgid(gid_t, struct r_pgdata *); 77*aa693e99SJason King 78*aa693e99SJason King #if defined(WITH_CASPER) 79*aa693e99SJason King struct passwd *r_cap_getpwuid(cap_channel_t *, uid_t, struct r_pgdata *); 80*aa693e99SJason King struct group *r_cap_getgrgid(cap_channel_t *, gid_t, struct r_pgdata *); 81*aa693e99SJason King #endif 82*aa693e99SJason King 83*aa693e99SJason King #endif /* LIB9P_RFUNCS_H */ 84