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libtokencap illumos/solaris support proposal.

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This commit is contained in:
David Carlier 2020-07-01 21:14:34 +01:00
parent 00abb999e3
commit 1aa7c87ea8
2 changed files with 46 additions and 7 deletions
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5
libtokencap/Makefile
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@ -39,9 +39,10 @@ ______OS_DL = $(_____OS_DL:$(_UNIQ)="-ldl")
__OS_TARGET = $(_OS_TARGET:$(_UNIQ)OpenBSD=$(_UNIQ))
___OS_TARGET = $(__OS_TARGET:$(_UNIQ)NetBSD=$(_UNIQ))
____OS_TARGET = $(___OS_TARGET:$(_UNIQ)Haiku=$(_UNIQ))
_____OS_TARGET = $(___OS_TARGET:$(_UNIQ)$(UNAME_S)=)
_____OS_TARGET = $(____OS_TARGET:$(_UNIQ)SunOS=$(_UNIQ))
______OS_TARGET = $(____OS_TARGET:$(_UNIQ)$(UNAME_S)=)
TARGETS = $(____OS_TARGET:$(_UNIQ)=libtokencap.so)
TARGETS = $(_____OS_TARGET:$(_UNIQ)=libtokencap.so)
LDFLAGS += $(______OS_DL)

40
libtokencap/libtokencap.so.c
View File

@ -35,7 +35,7 @@
#if !defined __linux__ && !defined __APPLE__ && !defined __FreeBSD__ && \
!defined __OpenBSD__ && !defined __NetBSD__ && !defined __DragonFly__ && \
!defined(__HAIKU__)
!defined(__HAIKU__) && !defined(__sun)
#error "Sorry, this library is unsupported in this platform for now!"
#endif /* !__linux__ && !__APPLE__ && ! __FreeBSD__ && ! __OpenBSD__ && \
!__NetBSD__*/
@ -52,6 +52,10 @@
#include <sys/mman.h>
#elif defined __HAIKU__
#include <kernel/image.h>
#elif defined __sun
/* For map addresses the old struct is enough */
#include <sys/procfs.h>
#include <limits.h>
#endif
#include <dlfcn.h>
@ -237,6 +241,8 @@ static void __tokencap_load_mappings(void) {
image_info ii;
int32_t group = 0;
__tokencap_ro_loaded = 1;
while (get_next_image_info(0, &group, &ii) == B_OK) {
__tokencap_ro[__tokencap_ro_cnt].st = ii.text;
@ -246,6 +252,38 @@ static void __tokencap_load_mappings(void) {
}
#elif defined __sun
prmap_t *c, *map;
char path[PATH_MAX];
ssize_t r;
size_t hint;
int fd;
snprintf(path, sizeof(path), "/proc/%ld/map", getpid());
fd = open(path, O_RDONLY);
hint = (1 << 20);
map = malloc(hint);
__tokencap_ro_loaded = 1;
for (; (r = pread(fd, map, hint, 0)) == hint; ) {
hint <<= 1;
map = realloc(map, hint);
}
for (c = map; c++; r -= sizeof(prmap_t)) {
__tokencap_ro[__tokencap_ro_cnt].st = c->pr_vaddr;
__tokencap_ro[__tokencap_ro_cnt].en = c->pr_vaddr + c->pr_size;
if (++__tokencap_ro_cnt == MAX_MAPPINGS) break;
}
free(map);
close(fd);
#endif
}