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MINOR: tools: add FreeBSD support to get_exec_path()

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FreeBSD stores the absolute path into the auxiliary vector as well.
The auxiliary vector is found in __elf_aux_vector there.
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devnexen@gmail.com 2021-08-17 12:55:49 +01:00 committed by Willy Tarreau
parent 1e7bef17df
commit c4e5232db8
1 changed files with 14 additions and 0 deletions
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14
src/tools.c
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@ -16,6 +16,12 @@
#include <link.h> #include <link.h>
#endif #endif
#if defined(__FreeBSD__)
#include <elf.h>
#include <dlfcn.h>
extern void *__elf_aux_vector;
#endif
#if defined(__NetBSD__) #if defined(__NetBSD__)
#include <sys/exec_elf.h> #include <sys/exec_elf.h>
#include <dlfcn.h> #include <dlfcn.h>
@ -4766,6 +4772,14 @@ const char *get_exec_path()
if (execfn && execfn != ENOENT) if (execfn && execfn != ENOENT)
ret = (const char *)execfn; ret = (const char *)execfn;
#elif defined(__FreeBSD__)
Elf_Auxinfo *auxv;
for (auxv = __elf_aux_vector; auxv->a_type != AT_NULL; ++auxv) {
if (auxv->a_type == AT_EXECPATH) {
ret = (const char *)auxv->a_un.a_ptr;
break;
}
}
#elif defined(__NetBSD__) #elif defined(__NetBSD__)
AuxInfo *auxv; AuxInfo *auxv;
for (auxv = _dlauxinfo(); auxv->a_type != AT_NULL; ++auxv) { for (auxv = _dlauxinfo(); auxv->a_type != AT_NULL; ++auxv) {