toybox: lib/portability.h annotate

annotate lib/portability.h @ 1660:b84024067049 draft

This patch adds a TOYBOX_SELINUX configuration option to control both the SELinux commands (such as chcon) and the SELinux-specific options to regular commands (such as ls -Z). This lets us #include <selinux/selinux.h> in portability.h. I've also fixed chcon to insist on being given the a context argument. This patch also adds -Z to id and fixes id's regular output (-G should be separated by spaces, non-G output should be separated by commas, and you don't want a double comma where the egid is omitted from the list of groups).

author	Elliott Hughes <enh@google.com>
date	Fri, 16 Jan 2015 13:36:53 -0600
parents	aafd2f28245a
children	d4bc084916fd

rev	line source
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	1 // Workarounds for horrible build environment idiosyncrasies.
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	2
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	3 // Instead of polluting the code with strange #ifdefs to work around bugs
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	4 // in specific compiler, library, or OS versions, localize all that here
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	5 // and in portability.c
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	6
1235 63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	7 // For musl
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	8 #define _ALL_SOURCE
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	9
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	10 // Test for gcc (using compiler builtin #define)
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	11
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	12 #ifdef __GNUC__
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	13 #define noreturn __attribute__((noreturn))
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	14 #else
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	15 #define noreturn
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	16 #endif
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	17
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	18 // Always use long file support.
533 31215cc6c9f2 Consolidate headers. Rob Landley <rob@landley.net> parents: 372 diff changeset	19 #define _FILE_OFFSET_BITS 64
31215cc6c9f2 Consolidate headers. Rob Landley <rob@landley.net> parents: 372 diff changeset	20
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	21 // This isn't in the spec, but it's how we determine what libc we're using.
550 b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	22
600 58d2fd7484bd More header fiddling: crypt.h is silly, SUSv4 requires crypt() to be prototyped in unistd.h. The fact glibc refuses to do so without a wacky #define is a glibc bug, treat it as such. Rob Landley <rob@landley.net> parents: 550 diff changeset	23 #include <features.h>
550 b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	24
800 4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	25 // Various constants old build environments might not have even if kernel does
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	26
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	27 #ifndef AT_FDCWD
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	28 #define AT_FDCWD -100
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	29 #endif
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	30
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	31 #ifndef AT_SYMLINK_NOFOLLOW
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	32 #define AT_SYMLINK_NOFOLLOW 0x100
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	33 #endif
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	34
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	35 #ifndef AT_REMOVEDIR
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	36 #define AT_REMOVEDIR 0x200
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	37 #endif
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	38
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	39 // We don't define GNU_dammit because we're not part of the gnu project, and
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	40 // don't want to get any FSF on us. Unfortunately glibc (gnu libc)
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	41 // won't give us Linux syscall wrappers without claiming to be part of the
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	42 // gnu project (because Stallman's "GNU owns Linux" revisionist history
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	43 // crusade includes the kernel, even though Linux was inspired by Minix).
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	44
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	45 // We use most non-posix Linux syscalls directly through the syscall() wrapper,
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	46 // but even many posix-2008 functions aren't provided by glibc unless you
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	47 // claim it's in the name of Gnu.
bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	48
713 ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	49 #if defined(__GLIBC__)
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	50 // "Function prototypes shall be provided." but aren't.
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	51 // http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	52 char crypt(const char key, const char *salt);
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	53
1395 5149632b0d07 Add utf8 support to ls -C. Rob Landley <rob@landley.net> parents: 1275 diff changeset	54 // According to posix, #include header, get a function definition. But glibc...
5149632b0d07 Add utf8 support to ls -C. Rob Landley <rob@landley.net> parents: 1275 diff changeset	55 // http://pubs.opengroup.org/onlinepubs/9699919799/functions/wcwidth.html
5149632b0d07 Add utf8 support to ls -C. Rob Landley <rob@landley.net> parents: 1275 diff changeset	56 #include <wchar.h>
5149632b0d07 Add utf8 support to ls -C. Rob Landley <rob@landley.net> parents: 1275 diff changeset	57 int wcwidth(wchar_t wc);
5149632b0d07 Add utf8 support to ls -C. Rob Landley <rob@landley.net> parents: 1275 diff changeset	58
550 b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	59 // see http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html
b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	60 #include <time.h>
b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	61 char strptime(const char buf, const char format, struct tm tm);
713 ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	62
1632 aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	63 // They didn't like posix basename so they defined another function with the
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	64 // same name and if you include libgen.h it #defines basename to something
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	65 // else (where they implemented the real basename), and that define breaks
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	66 // the table entry for the basename command. They didn't make a new function
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	67 // with a different name for their new behavior because gnu.
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	68 //
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	69 // Implement our own in portability.c and don't use their broken header.
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	70 char basename(char path);
aafd2f28245a When you include the posix header libgen.h, glibc #defines basename to some random other symbol name (because gnu) and this screws up nontrivial macro expansions of NEWTOY(basename), so work around it in portability.h. Rob Landley <rob@landley.net> parents: 1600 diff changeset	71
713 ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	72 // uClibc pretends to be glibc and copied a lot of its bugs, but has a few more
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	73 #if defined(__UCLIBC__)
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	74 #include <unistd.h>
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	75 #include <stdio.h>
ff8a27d3ab8f The headers of uClibc and older glibc got unhappy with O_DIRECTORY and some other stuff. Fix it up in portability.h. Rob Landley <rob@landley.net> parents: 702 diff changeset	76 ssize_t getdelim(char *lineptr, size_t n, int delim, FILE *stream);
1494 ca340df928bc Tweak portability.h for uClibc version in buildroot defconfig. Rob Landley <rob@landley.net> parents: 1459 diff changeset	77 char stpcpy(char dest, const char *src);
ca340df928bc Tweak portability.h for uClibc version in buildroot defconfig. Rob Landley <rob@landley.net> parents: 1459 diff changeset	78 pid_t getsid(pid_t pid);
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	79
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	80 // uClibc's last-ever release was in 2012, so of course it doesn't define
240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	81 // any flag newer than MS_MOVE, which was added in 2001 (linux 2.5.0.5),
240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	82 // eleven years earlier.
240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	83
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	84 #include <sys/mount.h>
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	85 #ifndef MS_MOVE
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	86 #define MS_MOVE (1<<13)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	87 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	88 #ifndef MS_REC
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	89 #define MS_REC (1<<14)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	90 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	91 #ifndef MS_SILENT
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	92 #define MS_SILENT (1<<15)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	93 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	94 #ifndef MS_UNBINDABLE
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	95 #define MS_UNBINDABLE (1<<17)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	96 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	97 #ifndef MS_PRIVATE
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	98 #define MS_PRIVATE (1<<18)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	99 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	100 #ifndef MS_SLAVE
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	101 #define MS_SLAVE (1<<19)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	102 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	103 #ifndef MS_SHARED
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	104 #define MS_SHARED (1<<20)
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	105 #endif
1459 240bd13db413 Work around uClibc brain-damage. Rob Landley <rob@landley.net> parents: 1433 diff changeset	106
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	107 // When building under obsolete glibc (Ubuntu 8.04-ish), hold its hand a bit.
800 4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	108 #elif __GLIBC__ == 2 && __GLIBC_MINOR__ < 10
727 fb17cd078e63 Fix ancient glibc workaround to force fstatat64 Rob Landley <rob@landley.net> parents: 713 diff changeset	109 #define fstatat fstatat64
fb17cd078e63 Fix ancient glibc workaround to force fstatat64 Rob Landley <rob@landley.net> parents: 713 diff changeset	110 int fstatat64(int dirfd, const char pathname, void buf, int flags);
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	111 int readlinkat(int dirfd, const char pathname, char buf, size_t bufsiz);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	112 char stpcpy(char dest, const char *src);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	113 #include <sys/stat.h>
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	114 int fchmodat(int dirfd, const char *pathname, mode_t mode, int flags);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	115 int openat(int dirfd, const char *pathname, int flags, ...);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	116 #include <dirent.h>
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	117 DIR *fdopendir(int fd);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	118 #include <unistd.h>
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	119 int fchownat(int dirfd, const char *pathname,
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	120 uid_t owner, gid_t group, int flags);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	121 int isblank(int c);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	122 int unlinkat(int dirfd, const char *pathname, int flags);
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	123 #include <stdio.h>
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	124 ssize_t getdelim(char *lineptr, size_t n, int delim, FILE *stream);
800 4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	125
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	126 // Straight from posix-2008, things old glibc had but didn't prototype
800 4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	127
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	128 int faccessat(int fd, const char *path, int amode, int flag);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	129 int linkat(int fd1, const char path1, int fd2, const char path2, int flag);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	130 int mkdirat(int fd, const char *path, mode_t mode);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	131 int symlinkat(const char path1, int fd, const char path2);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	132 int mknodat(int fd, const char *path, mode_t mode, dev_t dev);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	133 #include <sys/time.h>
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	134 int futimens(int fd, const struct timespec times[2]);
4ffb735aea59 More support for old (~2008) build environments, move the #ifdef checks for symbols out of specific library version checks (shouldn't hurt anything), remove obsolete debug macro. Rob Landley <rob@landley.net> parents: 789 diff changeset	135 int utimensat(int fd, const char *path, const struct timespec times[2], int flag);
1148 d01ab969cc5d Only define MNT_DETACH for old glibc, portability.h included _before_ sys/mount.h... Rob Landley <rob@landley.net> parents: 1146 diff changeset	136
d01ab969cc5d Only define MNT_DETACH for old glibc, portability.h included _before_ sys/mount.h... Rob Landley <rob@landley.net> parents: 1146 diff changeset	137 #ifndef MNT_DETACH
d01ab969cc5d Only define MNT_DETACH for old glibc, portability.h included _before_ sys/mount.h... Rob Landley <rob@landley.net> parents: 1146 diff changeset	138 #define MNT_DETACH 2
d01ab969cc5d Only define MNT_DETACH for old glibc, portability.h included _before_ sys/mount.h... Rob Landley <rob@landley.net> parents: 1146 diff changeset	139 #endif
691 8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	140 #endif
8871e8002812 Older versions of glibc predated posix-2008. They still provide most of what we need, but require a boot to the headers to get them to admit it. Note that uClibc lies and claims to be glibc so we have to specifically exclude it here. Rob Landley <rob@landley.net> parents: 600 diff changeset	141
550 b2194045c40e Remove "feature test macros", replace non-portable fdprintf() with standard fprintf(). Rob Landley <rob@landley.net> parents: 549 diff changeset	142 #endif
63 69efffcacd70 Add fdprintf(). Remove reread() and rewrite() which handle -EINTR, which Rob Landley <rob@landley.net> parents: 53 diff changeset	143
1512 7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	144 #ifdef __MUSL__
7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	145 #include <unistd.h>
7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	146 // Without this "rm -r dir" fails with "is directory".
7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	147 #define faccessat(A, B, C, D) faccessat(A, B, C, 0)
7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	148 #endif
7afd32673a5c Workaround for musl's faccessat bug (the rm -r "error: is a directory" thing). Rob Landley <rob@landley.net> parents: 1494 diff changeset	149
806 bbec26ccb40c Comment updates and a policy statement about avoiding #define GNU_dammit Rob Landley <rob@landley.net> parents: 800 diff changeset	150 // Work out how to do endianness
100 c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	151
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	152 #ifndef __APPLE__
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	153 #include <byteswap.h>
53 41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	154 #include <endian.h>
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	155
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	156 #if __BYTE_ORDER == __BIG_ENDIAN
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	157 #define IS_BIG_ENDIAN 1
100 c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	158 #else
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	159 #define IS_BIG_ENDIAN 0
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	160 #endif
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	161
549 1f5bd8c93093 Implement Apple and Android versions of getline(), getdelim(), and clearenv(). Georgi Chorbadzhiyski <gf@unixsol.org> parents: 533 diff changeset	162 int clearenv(void);
100 c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	163 #else
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	164
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	165 #ifdef __BIG_ENDIAN__
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	166 #define IS_BIG_ENDIAN 1
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	167 #else
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	168 #define IS_BIG_ENDIAN 0
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	169 #endif
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	170
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	171 #endif
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	172
c3d1d74d5d8f MacOS X has a defective sed with no -r. Rob Landley <rob@landley.net> parents: 94 diff changeset	173 #if IS_BIG_ENDIAN
53 41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	174 #define IS_LITTLE_ENDIAN 0
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	175 #define SWAP_BE16(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	176 #define SWAP_BE32(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	177 #define SWAP_BE64(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	178 #define SWAP_LE16(x) bswap_16(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	179 #define SWAP_LE32(x) bswap_32(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	180 #define SWAP_LE64(x) bswap_64(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	181 #else
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	182 #define IS_LITTLE_ENDIAN 1
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	183 #define SWAP_BE16(x) bswap_16(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	184 #define SWAP_BE32(x) bswap_32(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	185 #define SWAP_BE64(x) bswap_64(x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	186 #define SWAP_LE16(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	187 #define SWAP_LE32(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	188 #define SWAP_LE64(x) (x)
41d55b5d49fd Add start of mke2fs/gene2fs, and some other stuff I've been working on. Rob Landley <rob@landley.net> parents: diff changeset	189 #endif
94 884c03c29f21 Teach build to build only the toys/.c selected in .config, and teach Rob Landley <rob@landley.net>* parents: 63 diff changeset	190
1567 73eb55d21cde Patch from Elliott Hughes for Android/bionic build. Rob Landley <rob@landley.net> parents: 1565 diff changeset	191 #if defined(__APPLE__) \
1275 6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	192 \|\| (defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 10)
549 1f5bd8c93093 Implement Apple and Android versions of getline(), getdelim(), and clearenv(). Georgi Chorbadzhiyski <gf@unixsol.org> parents: 533 diff changeset	193 ssize_t getdelim(char *lineptr, size_t n, int delim, FILE *stream);
1f5bd8c93093 Implement Apple and Android versions of getline(), getdelim(), and clearenv(). Georgi Chorbadzhiyski <gf@unixsol.org> parents: 533 diff changeset	194 ssize_t getline(char *lineptr, size_t n, FILE *stream);
1f5bd8c93093 Implement Apple and Android versions of getline(), getdelim(), and clearenv(). Georgi Chorbadzhiyski <gf@unixsol.org> parents: 533 diff changeset	195 #endif
813 52e69f6710ca Compile time probe to fish O_NOFOLLOW out of linux headers when fcntl doesn't conform to posix-2008. Rob Landley <rob@landley.net> parents: 812 diff changeset	196
1235 63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	197 // Linux headers not listed by POSIX or LSB
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	198 #include <sys/mount.h>
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	199 #include <sys/swap.h>
63db77909fc8 Group headers by standard (POSIX or LSB) or function (internationalization, networking). Move headers standards ignore (but which have been there >15 years) to lib/portability.h. Fold xregcomp into lib since it's posix. Rob Landley <rob@landley.net> parents: 1186 diff changeset	200
1564 685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	201 // Android is missing some headers and functions
685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	202 // "generated/config.h" is included first
1565 a3500bd8b322 Fixups for the android/bionic build probes patch. Rob Landley <rob@landley.net> parents: 1564 diff changeset	203 #if CFG_TOYBOX_SHADOW
1564 685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	204 #include <shadow.h>
685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	205 #endif
1565 a3500bd8b322 Fixups for the android/bionic build probes patch. Rob Landley <rob@landley.net> parents: 1564 diff changeset	206 #if CFG_TOYBOX_UTMPX
1564 685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	207 #include <utmpx.h>
685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	208 #endif
1565 a3500bd8b322 Fixups for the android/bionic build probes patch. Rob Landley <rob@landley.net> parents: 1564 diff changeset	209 #if CFG_TOYBOX_PTY
1564 685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	210 #include <pty.h>
1565 a3500bd8b322 Fixups for the android/bionic build probes patch. Rob Landley <rob@landley.net> parents: 1564 diff changeset	211 #else
a3500bd8b322 Fixups for the android/bionic build probes patch. Rob Landley <rob@landley.net> parents: 1564 diff changeset	212 pid_t forkpty(int amaster, char name, void termp, void winp);
1564 685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	213 #endif
685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	214
685a0da6ca59 probe for getspnam(), forkpty(), utmpx, replace sethostname() Isaac Dunham <ibid.ag@gmail.com> parents: 1512 diff changeset	215
1259 565980862743 Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says. Rob Landley <rob@landley.net> parents: 1235 diff changeset	216 // Some systems don't define O_NOFOLLOW, and it varies by architecture, so...
565980862743 Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says. Rob Landley <rob@landley.net> parents: 1235 diff changeset	217 #include <fcntl.h>
565980862743 Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says. Rob Landley <rob@landley.net> parents: 1235 diff changeset	218 #ifndef O_NOFOLLOW
565980862743 Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says. Rob Landley <rob@landley.net> parents: 1235 diff changeset	219 #define O_NOFOLLOW 0
565980862743 Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says. Rob Landley <rob@landley.net> parents: 1235 diff changeset	220 #endif
1275 6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	221
1433 00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1395 diff changeset	222 #ifndef O_CLOEXEC
00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1395 diff changeset	223 #define O_CLOEXEC 02000000
00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1395 diff changeset	224 #endif
00c20f410c46 Patches to commands for issues reported from static analysis tool. Ashwini Sharma <ak.ashwini1981@gmail.com> parents: 1395 diff changeset	225
1275 6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	226 #if defined(__SIZEOF_DOUBLE__) && defined(__SIZEOF_LONG__) \
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	227 && __SIZEOF_DOUBLE__ <= __SIZEOF_LONG__
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	228 typedef double FLOAT;
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	229 #else
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	230 typedef float FLOAT;
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	231 #endif
6f18a0845db3 Use compiler built-in macros to determine if argument parsing can use double or float for FLOAT arguments. (I.E. whether double fits in a long's memory.) Check in a way that the macros not being defined just gives us the shorter one. Rob Landley <rob@landley.net> parents: 1259 diff changeset	232
1600 ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	233 #ifndef __uClinux__
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	234 pid_t xfork(void);
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	235 #endif
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	236
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	237 //#define strncpy(...) @@strncpyisbadmmkay@@
ce22ad7a26c1 Work with buildroot's extensively patched uClibc, and for nommu support move xfork() to portability.h and #ifdef based on __uClinux__ (which seems to be the nommu compiler define). Rob Landley <rob@landley.net> parents: 1571 diff changeset	238 //#define strncat(...) @@strcatisbadmmkay@@
1660 b84024067049 This patch adds a TOYBOX_SELINUX configuration option to control both Elliott Hughes <enh@google.com> parents: 1632 diff changeset	239
b84024067049 This patch adds a TOYBOX_SELINUX configuration option to control both Elliott Hughes <enh@google.com> parents: 1632 diff changeset	240 #if CFG_TOYBOX_SELINUX
b84024067049 This patch adds a TOYBOX_SELINUX configuration option to control both Elliott Hughes <enh@google.com> parents: 1632 diff changeset	241 #include <selinux/selinux.h>
b84024067049 This patch adds a TOYBOX_SELINUX configuration option to control both Elliott Hughes <enh@google.com> parents: 1632 diff changeset	242 #endif

Mercurial > hg > toybox

annotate lib/portability.h @ 1660:b84024067049 draft