From 9620f76a210d9d8c1aaff25e99d6dc513f87e6e9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 04:23:56 +0200 Subject: Adding upstream version 1.8.27. Signed-off-by: Daniel Baumann --- include/sudo_compat.h | 531 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 531 insertions(+) create mode 100644 include/sudo_compat.h (limited to 'include/sudo_compat.h') diff --git a/include/sudo_compat.h b/include/sudo_compat.h new file mode 100644 index 0000000..5c32840 --- /dev/null +++ b/include/sudo_compat.h @@ -0,0 +1,531 @@ +/* + * Copyright (c) 1996, 1998-2005, 2008, 2009-2018 + * Todd C. Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +#ifndef SUDO_COMPAT_H +#define SUDO_COMPAT_H + +#include +#if !defined(HAVE_VSNPRINTF) || !defined(HAVE_VASPRINTF) || \ + !defined(HAVE_VSYSLOG) || defined(PREFER_PORTABLE_SNPRINTF) +# include +#endif +#if !defined(HAVE_MEMSET_S) && !defined(rsize_t) +# include /* for rsize_t */ +# ifdef HAVE_STRING_H +# include /* for rsize_t on AIX */ +# endif /* HAVE_STRING_H */ +#endif /* HAVE_MEMSET_S && rsize_t */ + +/* + * Macros and functions that may be missing on some operating systems. + */ + +#ifndef __GNUC_PREREQ__ +# ifdef __GNUC__ +# define __GNUC_PREREQ__(ma, mi) \ + ((__GNUC__ > (ma)) || (__GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))) +# else +# define __GNUC_PREREQ__(ma, mi) 0 +# endif +#endif + +/* Define away __attribute__ for non-gcc or old gcc */ +#if !defined(__attribute__) && !__GNUC_PREREQ__(2, 5) +# define __attribute__(x) +#endif + +/* For catching format string mismatches */ +#ifndef __printflike +# if __GNUC_PREREQ__(3, 3) +# define __printflike(f, v) __attribute__((__format__ (__printf__, f, v))) __attribute__((__nonnull__ (f))) +# elif __GNUC_PREREQ__(2, 7) +# define __printflike(f, v) __attribute__((__format__ (__printf__, f, v))) +# else +# define __printflike(f, v) +# endif +#endif +#ifndef __printf0like +# if __GNUC_PREREQ__(2, 7) +# define __printf0like(f, v) __attribute__((__format__ (__printf__, f, v))) +# else +# define __printf0like(f, v) +# endif +#endif +#ifndef __format_arg +# if __GNUC_PREREQ__(2, 7) +# define __format_arg(f) __attribute__((__format_arg__ (f))) +# else +# define __format_arg(f) +# endif +#endif + +/* + * Given the pointer x to the member m of the struct s, return + * a pointer to the containing structure. + */ +#ifndef __containerof +# define __containerof(x, s, m) ((s *)((char *)(x) - offsetof(s, m))) +#endif + +#ifndef __dso_public +# ifdef HAVE_DSO_VISIBILITY +# if defined(__GNUC__) +# define __dso_public __attribute__((__visibility__("default"))) +# define __dso_hidden __attribute__((__visibility__("hidden"))) +# elif defined(__SUNPRO_C) +# define __dso_public __global +# define __dso_hidden __hidden +# else +# define __dso_public __declspec(dllexport) +# define __dso_hidden +# endif +# else +# define __dso_public +# define __dso_hidden +# endif +#endif + +/* + * Pre-C99 compilers may lack a va_copy macro. + */ +#ifndef va_copy +# ifdef __va_copy +# define va_copy(d, s) __va_copy(d, s) +# else +# define va_copy(d, s) memcpy(&(d), &(s), sizeof(d)); +# endif +#endif + +/* + * Some systems lack full limit definitions. + */ +#if defined(HAVE_DECL_LLONG_MAX) && !HAVE_DECL_LLONG_MAX +# if defined(HAVE_DECL_QUAD_MAX) && HAVE_DECL_QUAD_MAX +# define LLONG_MAX QUAD_MAX +# else +# define LLONG_MAX 0x7fffffffffffffffLL +# endif +#endif + +#if defined(HAVE_DECL_LLONG_MIN) && !HAVE_DECL_LLONG_MIN +# if defined(HAVE_DECL_QUAD_MIN) && HAVE_DECL_QUAD_MIN +# define LLONG_MIN QUAD_MIN +# else +# define LLONG_MIN (-0x7fffffffffffffffLL-1) +# endif +#endif + +#if defined(HAVE_DECL_ULLONG_MAX) && !HAVE_DECL_ULLONG_MAX +# if defined(HAVE_DECL_UQUAD_MAX) && HAVE_DECL_UQUAD_MAX +# define ULLONG_MAX UQUAD_MAX +# else +# define ULLONG_MAX 0xffffffffffffffffULL +# endif +#endif + +#if defined(HAVE_DECL_SIZE_MAX) && !HAVE_DECL_SIZE_MAX +# if defined(HAVE_DECL_SIZE_T_MAX) && HAVE_DECL_SIZE_T_MAX +# define SIZE_MAX SIZE_T_MAX +# else +# define SIZE_MAX ULONG_MAX +# endif +#endif + +#if defined(HAVE_DECL_PATH_MAX) && !HAVE_DECL_PATH_MAX +# if defined(HAVE_DECL__POSIX_PATH_MAX) && HAVE_DECL__POSIX_PATH_MAX +# define PATH_MAX _POSIX_PATH_MAX +# else +# define PATH_MAX 256 +# endif +#endif + +/* + * POSIX versions for those without... + */ +#ifndef _S_IFMT +# define _S_IFMT S_IFMT +#endif /* _S_IFMT */ +#ifndef _S_IFREG +# define _S_IFREG S_IFREG +#endif /* _S_IFREG */ +#ifndef _S_IFDIR +# define _S_IFDIR S_IFDIR +#endif /* _S_IFDIR */ +#ifndef _S_IFLNK +# define _S_IFLNK S_IFLNK +#endif /* _S_IFLNK */ +#ifndef _S_IFIFO +# define _S_IFIFO S_IFIFO +#endif /* _S_IFIFO */ +#ifndef S_ISREG +# define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG) +#endif /* S_ISREG */ +#ifndef S_ISDIR +# define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR) +#endif /* S_ISDIR */ +#ifndef S_ISLNK +# define S_ISLNK(m) (((m) & _S_IFMT) == _S_IFLNK) +#endif /* S_ISLNK */ +#ifndef S_ISFIFO +# define S_ISFIFO(m) (((m) & _S_IFMT) == _S_IFIFO) +#endif /* S_ISLNK */ +#ifndef S_ISTXT +# define S_ISTXT 0001000 +#endif /* S_ISTXT */ + +/* + * ACCESSPERMS (00777) and ALLPERMS (07777) are handy BSDisms + */ +#ifndef ACCESSPERMS +# define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) +#endif /* ACCESSPERMS */ +#ifndef ALLPERMS +# define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO) +#endif /* ALLPERMS */ + +/* For futimens() and utimensat() emulation. */ +#if !defined(HAVE_FUTIMENS) && !defined(HAVE_UTIMENSAT) +# ifndef UTIME_OMIT +# define UTIME_OMIT -1L +# endif +# ifndef UTIME_NOW +# define UTIME_NOW -2L +# endif +#endif +#if !defined(HAVE_OPENAT) || (!defined(HAVE_FUTIMENS) && !defined(HAVE_UTIMENSAT)) +# ifndef AT_FDCWD +# define AT_FDCWD -100 +# endif +#endif + +/* For pipe2() emulation. */ +#if !defined(HAVE_PIPE2) && defined(O_NONBLOCK) && !defined(O_CLOEXEC) +# define O_CLOEXEC 0x80000000 +#endif + +/* + * BSD defines these in but we don't include that anymore. + */ +#ifndef MIN +# define MIN(a,b) (((a)<(b))?(a):(b)) +#endif +#ifndef MAX +# define MAX(a,b) (((a)>(b))?(a):(b)) +#endif + +/* Macros to set/clear/test flags. */ +#undef SET +#define SET(t, f) ((t) |= (f)) +#undef CLR +#define CLR(t, f) ((t) &= ~(f)) +#undef ISSET +#define ISSET(t, f) ((t) & (f)) + +/* + * Some systems define this in but we don't include that anymore. + */ +#ifndef howmany +# define howmany(x, y) (((x) + ((y) - 1)) / (y)) +#endif + +/* + * Simple isblank() macro and function for systems without it. + */ +#ifndef HAVE_ISBLANK +__dso_public int isblank(int); +# define isblank(_x) ((_x) == ' ' || (_x) == '\t') +#endif + +/* + * NCR's SVr4 has _innetgr(3) instead of innetgr(3) for some reason. + */ +#ifdef HAVE__INNETGR +# define innetgr(n, h, u, d) (_innetgr(n, h, u, d)) +# define HAVE_INNETGR 1 +#endif /* HAVE__INNETGR */ + +/* + * The nitems macro may be defined in sys/param.h + */ +#ifndef nitems +# define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) +#endif + +/* + * If dirfd() does not exists, hopefully dd_fd does. + */ +#if !defined(HAVE_DIRFD) && defined(HAVE_DD_FD) +# define dirfd(_d) ((_d)->dd_fd) +# define HAVE_DIRFD +#endif + +#if !defined(HAVE_KILLPG) && !defined(killpg) +# define killpg(p, s) kill(-(p), (s)) +#endif + +/* + * Declare errno if errno.h doesn't do it for us. + */ +#if defined(HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO +extern int errno; +#endif /* !HAVE_DECL_ERRNO */ + +/* Not all systems define NSIG in signal.h */ +#if !defined(NSIG) +# if defined(_NSIG) +# define NSIG _NSIG +# elif defined(__NSIG) +# define NSIG __NSIG +# else +# define NSIG 64 +# endif +#endif + +/* For sig2str() */ +#if !defined(HAVE_DECL_SIG2STR_MAX) || !HAVE_DECL_SIG2STR_MAX +# define SIG2STR_MAX 32 +#endif + +/* WCOREDUMP is not POSIX, this usually works (verified on AIX). */ +#ifndef WCOREDUMP +# define WCOREDUMP(x) ((x) & 0x80) +#endif + +/* W_EXITCODE is not POSIX but the encoding of wait status is. */ +#ifndef W_EXITCODE +# define W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) +#endif + +/* Number of bits in a byte. */ +#ifndef NBBY +# ifdef __NBBY +# define NBBY __NBBY +# else +# define NBBY 8 +# endif +#endif + +#ifndef HAVE_SETEUID +# if defined(HAVE_SETRESUID) +# define seteuid(u) setresuid(-1, (u), -1) +# define setegid(g) setresgid(-1, (g), -1) +# define HAVE_SETEUID 1 +# elif defined(HAVE_SETREUID) +# define seteuid(u) setreuid(-1, (u)) +# define setegid(g) setregid(-1, (g)) +# define HAVE_SETEUID 1 +# endif +#endif /* HAVE_SETEUID */ + +/* + * Older HP-UX does not declare setresuid() or setresgid(). + */ +#if defined(HAVE_DECL_SETRESUID) && !HAVE_DECL_SETRESUID +int setresuid(uid_t, uid_t, uid_t); +int setresgid(gid_t, gid_t, gid_t); +#endif +#if defined(HAVE_DECL_GETRESUID) && !HAVE_DECL_GETRESUID +int getresuid(uid_t *, uid_t *, uid_t *); +int getresgid(gid_t *, gid_t *, gid_t *); +#endif + +/* + * HP-UX does not declare innetgr() or getdomainname(). + * Solaris does not declare getdomainname(). + */ +#if defined(HAVE_DECL_INNETGR) && !HAVE_DECL_INNETGR +int innetgr(const char *, const char *, const char *, const char *); +#endif +#if defined(HAVE_DECL__INNETGR) && !HAVE_DECL__INNETGR +int _innetgr(const char *, const char *, const char *, const char *); +#endif +#if defined(HAVE_DECL_GETDOMAINNAME) && !HAVE_DECL_GETDOMAINNAME +int getdomainname(char *, size_t); +#endif + +/* + * HP-UX 11.00 has broken pread/pwrite that can't handle a 64-bit off_t + * on 32-bit machines. + */ +#if defined(__hpux) && !defined(__LP64__) +# ifdef HAVE_PREAD64 +# undef pread +# define pread(_a, _b, _c, _d) pread64((_a), (_b), (_c), (_d)) +# endif +# ifdef HAVE_PWRITE64 +# undef pwrite +# define pwrite(_a, _b, _c, _d) pwrite64((_a), (_b), (_c), (_d)) +# endif +#endif /* __hpux && !__LP64__ */ + +/* We wrap OpenBSD's strtonum() to get translatable error strings. */ +__dso_public long long sudo_strtonum(const char *, long long, long long, const char **); +#undef strtonum +#define strtonum(_a, _b, _c, _d) sudo_strtonum((_a), (_b), (_c), (_d)) + +/* + * Functions "missing" from libc. + * All libc replacements are prefixed with "sudo_" to avoid namespace issues. + */ + +struct passwd; +struct timespec; + +#ifndef HAVE_CLOSEFROM +__dso_public void sudo_closefrom(int); +# undef closefrom +# define closefrom(_a) sudo_closefrom((_a)) +#endif /* HAVE_CLOSEFROM */ +#ifdef PREFER_PORTABLE_GETCWD +__dso_public char *sudo_getcwd(char *, size_t size); +# undef getcwd +# define getcwd(_a, _b) sudo_getcwd((_a), (_b)) +#endif /* PREFER_PORTABLE_GETCWD */ +#ifndef HAVE_GETGROUPLIST +__dso_public int sudo_getgrouplist(const char *name, GETGROUPS_T basegid, GETGROUPS_T *groups, int *ngroupsp); +# undef getgrouplist +# define getgrouplist(_a, _b, _c, _d) sudo_getgrouplist((_a), (_b), (_c), (_d)) +#endif /* GETGROUPLIST */ +#ifndef HAVE_GETLINE +__dso_public ssize_t sudo_getline(char **bufp, size_t *bufsizep, FILE *fp); +# undef getline +# define getline(_a, _b, _c) sudo_getline((_a), (_b), (_c)) +#endif /* HAVE_GETLINE */ +#ifndef HAVE_UTIMENSAT +__dso_public int sudo_utimensat(int fd, const char *file, const struct timespec *times, int flag); +# undef utimensat +# define utimensat(_a, _b, _c, _d) sudo_utimensat((_a), (_b), (_c), (_d)) +#endif /* HAVE_UTIMENSAT */ +#ifndef HAVE_FUTIMENS +__dso_public int sudo_futimens(int fd, const struct timespec *times); +# undef futimens +# define futimens(_a, _b) sudo_futimens((_a), (_b)) +#endif /* HAVE_FUTIMENS */ +#if !defined(HAVE_SNPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) +__dso_public int sudo_snprintf(char *str, size_t n, char const *fmt, ...) __printflike(3, 4); +# undef snprintf +# define snprintf sudo_snprintf +#endif /* HAVE_SNPRINTF */ +#if !defined(HAVE_VSNPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) +__dso_public int sudo_vsnprintf(char *str, size_t n, const char *fmt, va_list ap) __printflike(3, 0); +# undef vsnprintf +# define vsnprintf sudo_vsnprintf +#endif /* HAVE_VSNPRINTF */ +#if !defined(HAVE_ASPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) +__dso_public int sudo_asprintf(char **str, char const *fmt, ...) __printflike(2, 3); +# undef asprintf +# define asprintf sudo_asprintf +#endif /* HAVE_ASPRINTF */ +#if !defined(HAVE_VASPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) +__dso_public int sudo_vasprintf(char **str, const char *fmt, va_list ap) __printflike(2, 0); +# undef vasprintf +# define vasprintf sudo_vasprintf +#endif /* HAVE_VASPRINTF */ +#ifndef HAVE_STRLCAT +__dso_public size_t sudo_strlcat(char *dst, const char *src, size_t siz); +# undef strlcat +# define strlcat(_a, _b, _c) sudo_strlcat((_a), (_b), (_c)) +#endif /* HAVE_STRLCAT */ +#ifndef HAVE_STRLCPY +__dso_public size_t sudo_strlcpy(char *dst, const char *src, size_t siz); +# undef strlcpy +# define strlcpy(_a, _b, _c) sudo_strlcpy((_a), (_b), (_c)) +#endif /* HAVE_STRLCPY */ +#ifndef HAVE_STRNDUP +__dso_public char *sudo_strndup(const char *str, size_t maxlen); +# undef strndup +# define strndup(_a, _b) sudo_strndup((_a), (_b)) +#endif /* HAVE_STRNDUP */ +#ifndef HAVE_STRNLEN +__dso_public size_t sudo_strnlen(const char *str, size_t maxlen); +# undef strnlen +# define strnlen(_a, _b) sudo_strnlen((_a), (_b)) +#endif /* HAVE_STRNLEN */ +#ifndef HAVE_MEMRCHR +__dso_public void *sudo_memrchr(const void *s, int c, size_t n); +# undef memrchr +# define memrchr(_a, _b, _c) sudo_memrchr((_a), (_b), (_c)) +#endif /* HAVE_MEMRCHR */ +#ifndef HAVE_MEMSET_S +__dso_public errno_t sudo_memset_s(void *v, rsize_t smax, int c, rsize_t n); +# undef memset_s +# define memset_s(_a, _b, _c, _d) sudo_memset_s((_a), (_b), (_c), (_d)) +#endif /* HAVE_MEMSET_S */ +#if !defined(HAVE_MKDTEMP) || !defined(HAVE_MKSTEMPS) +__dso_public char *sudo_mkdtemp(char *path); +# undef mkdtemp +# define mkdtemp(_a) sudo_mkdtemp((_a)) +__dso_public int sudo_mkstemps(char *path, int slen); +# undef mkstemps +# define mkstemps(_a, _b) sudo_mkstemps((_a), (_b)) +#endif /* !HAVE_MKDTEMP || !HAVE_MKSTEMPS */ +#ifndef HAVE_NANOSLEEP +__dso_public int sudo_nanosleep(const struct timespec *timeout, struct timespec *remainder); +#undef nanosleep +# define nanosleep(_a, _b) sudo_nanosleep((_a), (_b)) +#endif +#ifndef HAVE_PW_DUP +__dso_public struct passwd *sudo_pw_dup(const struct passwd *pw); +# undef pw_dup +# define pw_dup(_a) sudo_pw_dup((_a)) +#endif /* HAVE_PW_DUP */ +#ifndef HAVE_STRSIGNAL +__dso_public char *sudo_strsignal(int signo); +# undef strsignal +# define strsignal(_a) sudo_strsignal((_a)) +#endif /* HAVE_STRSIGNAL */ +#ifndef HAVE_SIG2STR +__dso_public int sudo_sig2str(int signo, char *signame); +# undef sig2str +# define sig2str(_a, _b) sudo_sig2str((_a), (_b)) +#endif /* HAVE_SIG2STR */ +#if !defined(HAVE_INET_NTOP) && defined(SUDO_NET_IFS_C) +__dso_public char *sudo_inet_ntop(int af, const void *src, char *dst, socklen_t size); +# undef inet_ntop +# define inet_ntop(_a, _b, _c, _d) sudo_inet_ntop((_a), (_b), (_c), (_d)) +#endif /* HAVE_INET_NTOP */ +#ifndef HAVE_INET_PTON +__dso_public int sudo_inet_pton(int af, const char *src, void *dst); +# undef inet_pton +# define inet_pton(_a, _b, _c) sudo_inet_pton((_a), (_b), (_c)) +#endif /* HAVE_INET_PTON */ +#ifndef HAVE_GETPROGNAME +__dso_public const char *sudo_getprogname(void); +# undef getprogname +# define getprogname() sudo_getprogname() +#endif /* HAVE_GETPROGNAME */ +#ifndef HAVE_REALLOCARRAY +__dso_public void *sudo_reallocarray(void *ptr, size_t nmemb, size_t size); +# undef reallocarray +# define reallocarray(_a, _b, _c) sudo_reallocarray((_a), (_b), (_c)) +#endif /* HAVE_REALLOCARRAY */ +#ifndef HAVE_VSYSLOG +__dso_public void sudo_vsyslog(int pri, const char *fmt, va_list ap); +# undef vsyslog +# define vsyslog(_a, _b, _c) sudo_vsyslog((_a), (_b), (_c)) +#endif /* HAVE_VSYSLOG */ +#ifndef HAVE_PIPE2 +__dso_public int sudo_pipe2(int fildes[2], int flags); +# undef pipe2 +# define pipe2(_a, _b) sudo_pipe2((_a), (_b)) +#endif /* HAVE_PIPE2 */ + +#endif /* SUDO_COMPAT_H */ -- cgit v1.2.3