diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/bits/in.h (renamed from sysdeps/generic/netinet/inbits.h) | 0 | ||||
| -rw-r--r-- | sysdeps/generic/crypt.h | 30 | ||||
| -rw-r--r-- | sysdeps/generic/vlimit.c | 2 | ||||
| -rw-r--r-- | sysdeps/generic/vtimes.c | 8 | ||||
| -rw-r--r-- | sysdeps/gnu/errlist.c | 2 | ||||
| -rw-r--r-- | sysdeps/i386/elf/bsd-_setjmp.S | 1 | ||||
| -rw-r--r-- | sysdeps/i386/elf/bsd-setjmp.S | 1 | ||||
| -rw-r--r-- | sysdeps/i386/elf/setjmp.S | 72 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/bits/mathinline.h | 71 | ||||
| -rw-r--r-- | sysdeps/m68k/dl-machine.h | 47 | ||||
| -rw-r--r-- | sysdeps/sparc/dl-machine.h | 4 | ||||
| -rw-r--r-- | sysdeps/stub/bits/libc-lock.h | 14 | ||||
| -rw-r--r-- | sysdeps/stub/if_index.c | 8 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/in.h (renamed from sysdeps/unix/sysv/linux/netinet/inbits.h) | 0 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/if_index.c | 217 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ptrace.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/fsuid.h | 2 |
17 files changed, 334 insertions, 146 deletions
diff --git a/sysdeps/generic/netinet/inbits.h b/sysdeps/generic/bits/in.h index 7241bd2..7241bd2 100644 --- a/sysdeps/generic/netinet/inbits.h +++ b/sysdeps/generic/bits/in.h diff --git a/sysdeps/generic/crypt.h b/sysdeps/generic/crypt.h index 0fdef18..3f8f960 100644 --- a/sysdeps/generic/crypt.h +++ b/sysdeps/generic/crypt.h @@ -29,28 +29,30 @@ __BEGIN_DECLS -struct crypt_data -{ - char keysched[(16 * 8) / sizeof (char)]; - char sb0[32768 / sizeof (char)]; - char sb1[32768 / sizeof (char)]; - char sb2[32768 / sizeof (char)]; - char sb3[32768 / sizeof (char)]; - /* end-of-alignment-critical-data */ - char crypt_3_buf[14]; - char current_salt[2]; - long current_saltbits; - int direction, initialized; -}; - /* Encrypt at most 8 characters from KEY using salt to perturb DES. */ extern char *crypt __P ((__const char *__key, __const char *__salt)); +#ifdef __USE_GNU /* Reentrant versions of the functions above. The additional argument points to a structure where the results are placed in. */ +struct crypt_data + { + char keysched[16 * 8]; + char sb0[32768]; + char sb1[32768]; + char sb2[32768]; + char sb3[32768]; + /* end-of-alignment-critical-data */ + char crypt_3_buf[14]; + char current_salt[2]; + long int current_saltbits; + int direction, initialized; + }; + extern char *crypt_r __P ((__const char *__key, __const char *__salt, struct crypt_data *__data)); +#endif __END_DECLS diff --git a/sysdeps/generic/vlimit.c b/sysdeps/generic/vlimit.c index 045eece..5654be1 100644 --- a/sysdeps/generic/vlimit.c +++ b/sysdeps/generic/vlimit.c @@ -43,7 +43,7 @@ vlimit (resource, value) return -1; lims.rlim_cur = value; - return setrlimit(rlimit_res, &lims); + return setrlimit (rlimit_res, &lims); } __set_errno (EINVAL); diff --git a/sysdeps/generic/vtimes.c b/sysdeps/generic/vtimes.c index 0c19a91..e448da6 100644 --- a/sysdeps/generic/vtimes.c +++ b/sysdeps/generic/vtimes.c @@ -38,8 +38,8 @@ vtimes_one (struct vtimes *vt, enum __rusage_who who) if (getrusage (who, &usage) < 0) return -1; - vt->vm_utime = TIMEVAL_TO_VTIMES(usage.ru_utime); - vt->vm_stime = TIMEVAL_TO_VTIMES(usage.ru_stime); + vt->vm_utime = TIMEVAL_TO_VTIMES (usage.ru_utime); + vt->vm_stime = TIMEVAL_TO_VTIMES (usage.ru_stime); vt->vm_idsrss = usage.ru_idrss + usage.ru_isrss; vt->vm_majflt = usage.ru_majflt; vt->vm_minflt = usage.ru_minflt; @@ -58,8 +58,8 @@ vtimes (current, child) struct vtimes *current; struct vtimes *child; { - if (vtimes_one(current, RUSAGE_SELF) < 0 || - vtimes_one(child, RUSAGE_CHILDREN) < 0) + if (vtimes_one (current, RUSAGE_SELF) < 0 + || vtimes_one (child, RUSAGE_CHILDREN) < 0) return -1; return 0; } diff --git a/sysdeps/gnu/errlist.c b/sysdeps/gnu/errlist.c index f998747..3333f1d 100644 --- a/sysdeps/gnu/errlist.c +++ b/sysdeps/gnu/errlist.c @@ -249,7 +249,7 @@ TRANS until some external condition makes it possible to read, write, or TRANS connect (whatever the operation). You can use @code{select} to find out TRANS when the operation will be possible; @pxref{Waiting for I/O}. TRANS -TRANS @strong{Portability Note:} In older Unix many systems, this condition +TRANS @strong{Portability Note:} In older many Unix systems, this condition TRANS was indicated by @code{EWOULDBLOCK}, which was a distinct error code TRANS different from @code{EAGAIN}. To make your program portable, you should TRANS check for both codes and treat them the same. diff --git a/sysdeps/i386/elf/bsd-_setjmp.S b/sysdeps/i386/elf/bsd-_setjmp.S new file mode 100644 index 0000000..1417270 --- /dev/null +++ b/sysdeps/i386/elf/bsd-_setjmp.S @@ -0,0 +1 @@ +/* We don't need any code here since the setjmp.S file contains it. */ diff --git a/sysdeps/i386/elf/bsd-setjmp.S b/sysdeps/i386/elf/bsd-setjmp.S new file mode 100644 index 0000000..1417270 --- /dev/null +++ b/sysdeps/i386/elf/bsd-setjmp.S @@ -0,0 +1 @@ +/* We don't need any code here since the setjmp.S file contains it. */ diff --git a/sysdeps/i386/elf/setjmp.S b/sysdeps/i386/elf/setjmp.S new file mode 100644 index 0000000..d73e843 --- /dev/null +++ b/sysdeps/i386/elf/setjmp.S @@ -0,0 +1,72 @@ +/* setjmp for i386, ELF version. + Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> +#define _ASM +#include <bits/setjmp.h> + + /* We include the BSD entry points here as well but we make + them weak. */ +ENTRY (setjmp) + .weak C_SYMBOL_NAME (setjmp) + popl %eax /* Pop return PC. */ + popl %ecx /* Pop jmp_buf argument. */ + pushl $1 /* Push second argument of zero. */ + pushl %ecx /* Push back first argument. */ + pushl %eax /* Push back return PC. */ + jmp __sigsetjmp +END (setjmp) + + /* Binary compatibility entry point. */ +ENTRY (_setjmp) + .weak C_SYMBOL_NAME (_setjmp) +ENTRY (__setjmp) + popl %eax /* Pop return address. */ + popl %ecx /* Pop jmp_buf. */ + pushl $0 /* Push zero argument. */ + pushl %ecx /* Push jmp_buf. */ + pushl %eax /* Push back return address. */ + +ENTRY (__sigsetjmp) + movl 4(%esp), %eax /* User's jmp_buf in %eax. */ + /* Save registers. */ + movl %ebx, (JB_BX*4)(%eax) + movl %esi, (JB_SI*4)(%eax) + movl %edi, (JB_DI*4)(%eax) + movl %ebp, (JB_BP*4)(%eax) + leal 4(%esp), %ecx /* Save SP as it will be after we return. */ + movl %ecx, (JB_SP*4)(%eax) + movl 0(%esp), %ecx /* Save PC we are returning to now. */ + movl %ecx, (JB_PC*4)(%eax) + + /* Make a tail call to __sigjmp_save; it takes the same args. */ +#ifdef PIC + /* We cannot use the PLT, because it requires that %ebx be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT, using for the temporary register + %ecx, which is call-clobbered. */ + call here +here: popl %ecx + addl $_GLOBAL_OFFSET_TABLE_+[.-here], %ecx + movl C_SYMBOL_NAME(__sigjmp_save@GOT)(%ecx), %ecx + jmp *%ecx +#else + jmp __sigjmp_save +#endif +END (__sigsetjmp) diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h index 2fc5baf..b3736f8 100644 --- a/sysdeps/i386/fpu/bits/mathinline.h +++ b/sysdeps/i386/fpu/bits/mathinline.h @@ -29,7 +29,7 @@ all floating-point types. */ # define isgreater(x, y) \ ({ int __result; \ - __asm__ ("fucompp; fnstsw; andb $0x45, %%ah; setz %%al;" \ + __asm__ ("fucompp; fnstsw; testb $0x45, %%ah; setz %%al;" \ "andl $0x01, %0" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) @@ -118,11 +118,11 @@ #endif #define __inline_mathop_decl_(float_type, func, op, params...) \ - __MATHINLINE float_type func (float_type); \ - __MATHINLINE float_type func (float_type __x) \ + __MATH_INLINE float_type func (float_type); \ + __MATH_INLINE float_type func (float_type __x) \ { \ register float_type __result; \ - __asm __volatile__ (op : "=t" (__results) : params); \ + __asm __volatile__ (op : "=t" (__result) : params); \ return __result; \ } @@ -163,8 +163,9 @@ } -/* Optimized inline implementation, sometimes woth reduced precision +/* Optimized inline implementation, sometimes with reduced precision and/or argument range. */ + #define __expm1_code \ register long double __value; \ register long double __exponent; \ @@ -266,7 +267,7 @@ __inline_mathcode2 (pow, __x, __y, \ /* NOTREACHED */ \ } \ __asm __volatile__ \ - ("fyl2x" : "=t" (__value) : "0" (__x), "u" (1.0) : "st1"); \ + ("fyl2x" : "=t" (__value) : "0" (__x), "u" (1.0) : "st(1)"); \ __asm __volatile__ \ ("fmul %%st(1) # y * log2(x)\n\t" \ "fst %%st(1)\n\t" \ @@ -285,26 +286,34 @@ __inline_mathcode2 (pow, __x, __y, \ __inline_mathop (sqrt, "fsqrt") __inline_mathop_ (long double, __sqrtl, "fsqrt") +#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 8) +__inline_mathcode_ (fabs, __x, return __builtin_fabs (__x)) +__inline_mathcode_ (fabsf, __x, return __builtin_fabsf (__x)) +__inline_mathcode_ (fabsl, __x, return __builtin_fabsl (__x)) +__inline_mathcode_ (__fabsl, __x, return __builtin_fabsl (__x)) +#else __inline_mathop (fabs, "fabs") +__inline_mathop_ (long double, __fabsl, "fabs") +#endif /* The argument range of this inline version is reduced. */ __inline_mathop (sin, "fsin") /* The argument range of this inline version is reduced. */ __inline_mathop (cos, "fcos") -__inline_mathop (atan, "fld1; fpatan") +__inline_mathop_decl (atan, "fpatan", "u" (__x), "0" (1.0) : "st(1)") __inline_mathop (log, "fldln2; fxch; fyl2x") __inline_mathop (log10, "fldlg2; fxch; fyl2x") __inline_mathcode (asin, __x, return __atan2l (__x, __sqrtl (1.0 - __x * __x))) __inline_mathcode (acos, __x, return __atan2l (__sqrtl (1.0 - __x * __x), __x)) -__inline_mathcode (__sgn1, __x, return __x >= 0.0 ? 1.0 : -1.0) +__inline_mathcode_ (long double, __sgn1l, __x, return __x >= 0.0 ? 1.0 : -1.0) /* The argument range of the inline version of sinhl is slightly reduced. */ __inline_mathcode (sinh, __x, \ - register long double __exm1 = __expm1l (__builtin_fabsl (__x)); \ + register long double __exm1 = __expm1l (__fabsl (__x)); \ return 0.5 * (__exm1 / (__exm1 + 1.0) + __exm1) * __sgn1l (__x)) __inline_mathcode (cosh, __x, \ @@ -312,7 +321,7 @@ __inline_mathcode (cosh, __x, \ return 0.5 * (__ex + 1.0 / __ex)) __inline_mathcode (tanh, __x, \ - register long double __exm1 = __expm1l (-__builtin_fabsl (__x + __x)); \ + register long double __exm1 = __expm1l (-__fabsl (__x + __x)); \ return __exm1 / (__exm1 + 2.0) * __sgn1l (-__x)) @@ -338,6 +347,20 @@ __inline_mathcode (ceil, __x, \ __asm __volatile ("fldcw %0" : : "m" (__cw)); \ return __value) +#define __ldexp_code \ + register long double __value; \ + __asm __volatile__ \ + ("fscale" \ + : "=t" (__value) : "0" (__x), "u" ((long double) __y)); \ + return __value + +__MATH_INLINE double ldexp (double __x, int __y); +__MATH_INLINE double +ldexp (double __x, int __y) +{ + __ldexp_code; +} + /* Optimized versions for some non-standardized functions. */ #if defined __USE_ISOC9X || defined __USE_MISC @@ -352,7 +375,7 @@ __inline_mathcode (expm1, __x, __expm1_code) __inline_mathcode (log1p, __x, \ register long double __value; \ - if (__builtin_fabsl (__x) >= 1.0 - 0.5 * __M_SQRT2) \ + if (__fabsl (__x) >= 1.0 - 0.5 * __M_SQRT2) \ __value = logl (1.0 + __x); \ else \ __asm __volatile__ \ @@ -365,7 +388,7 @@ __inline_mathcode (log1p, __x, \ /* The argument range of the inline version of asinhl is slightly reduced. */ __inline_mathcode (asinh, __x, \ - register long double __y = __builtin_fabsl (__x); \ + register long double __y = __fabsl (__x); \ return (log1pl (__y * __y / (__sqrtl (__y * __y + 1.0) + 1.0) + __y) \ * __sgn1l (__x)) @@ -373,7 +396,7 @@ __inline_mathcode (acosh, __x, \ return logl (__x + __sqrtl (__x - 1.0) * __sqrtl (__x + 1.0))) __inline_mathcode (atanh, __x, \ - register long double __y = __builtin_fabsl (__x); \ + register long double __y = __fabsl (__x); \ return (-0.5 * log1pl (-(__y + __y) / (1.0 + __y)) * \ __sgn1l (__x))) @@ -389,17 +412,25 @@ __inline_mathcode(logb, __x, \ : "=t" (__junk), "=u" (__value) : "0" (__x)); \ return __value) +__MATH_INLINE float ldexpf (float __x, int __y); +__MATH_INLINE float +ldexpf (float __x, int __y) +{ + __ldexp_code; +} + +__MATH_INLINE long double ldexpl (long double __x, int __y); +__MATH_INLINE long double +ldexpl (long double __x, int __y) +{ + __ldexp_code; +} -__inline_mathcode2 (ldexp, __x, __y, \ - register long double __value; \ - __asm __volatile__ \ - ("fscale" \ - : "=t" (__value) : "0" (__x), "u" ((long double) __y)); \ - return __value) #endif #ifdef __USE_MISC + __inline_mathcode2 (drem, __x, __y, \ register double __value; \ __asm __volatile__ \ @@ -431,7 +462,7 @@ __inline_mathcode (__sgn, __x, \ return __x == 0.0 ? 0.0 : (__x > 0.0 ? 1.0 : -1.0)) __inline_mathcode (__coshm1, __x, \ - register long double __exm1 = __expm1l (__builtin_fabsl (__x)); \ + register long double __exm1 = __expm1l (__fabsl (__x)); \ return 0.5 * (__exm1 / (__exm1 + 1.0)) * __exm1) __inline_mathcode (__acosh1p, __x, \ diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h index 7c62aa2..01fc339 100644 --- a/sysdeps/m68k/dl-machine.h +++ b/sysdeps/m68k/dl-machine.h @@ -80,6 +80,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) { Elf32_Addr *got; extern void _dl_runtime_resolve (Elf32_Word); + extern void _dl_runtime_profile (Elf32_Word); if (l->l_info[DT_JMPREL] && lazy) { @@ -90,10 +91,23 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) _GLOBAL_OFFSET_TABLE_[2]. */ got = (Elf32_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr); got[1] = (Elf32_Addr) l; /* Identify this shared object. */ - /* This function will get called to fix up the GOT entry - indicated by the offset on the stack, and then jump to the - resolved address. */ - got[2] = (Elf32_Addr) &_dl_runtime_resolve; + + /* The got[2] entry contains the address of a function which gets + called to get the address of a so far unresolved function and + jump to it. The profiling extension of the dynamic linker allows + to intercept the calls to collect information. In this case we + don't store the address in the GOT so that all future calls also + end in this function. */ + if (profile) + { + got[2] = (Elf32_Addr) &_dl_runtime_profile; + /* Say that we really want profiling and the timers are started. */ + _dl_profile_map = l; + } + else + /* This function will get called to fix up the GOT entry indicated by + the offset on the stack, and then jump to the resolved address. */ + got[2] = (Elf32_Addr) &_dl_runtime_resolve; } return lazy; @@ -101,16 +115,16 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) /* This code is used in dl-runtime.c to call the `fixup' function and then redirect to the address it returns. */ -#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ -| Trampoline for _dl_runtime_resolver - .globl _dl_runtime_resolve - .type _dl_runtime_resolve, @function -_dl_runtime_resolve: +#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \ +"| Trampoline for " #fixup_name " + .globl " #tramp_name " + .type " #tramp_name ", @function +" #tramp_name ": | Save %a0 (struct return address) and %a1. move.l %a0, -(%sp) move.l %a1, -(%sp) | Call the real address resolver. - jbsr fixup + jbsr " #fixup_name " | Restore register %a0 and %a1. move.l (%sp)+, %a1 move.l (%sp)+, %a0 @@ -118,8 +132,17 @@ _dl_runtime_resolve: addq.l #8, %sp | Call real function. jmp (%d0) - .size _dl_runtime_resolve, . - _dl_runtime_resolve -"); + .size " #tramp_name ", . - " #tramp_name "\n" +#ifndef PROF +#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ +asm (TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup) \ + TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup)); +#else +#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ +asm (TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup) \ + ".globl _dl_runtime_profile\n" \ + ".set _dl_runtime_profile, _dl_runtime_resolve"); +#endif #define ELF_MACHINE_RUNTIME_FIXUP_ARGS long int save_a0, long int save_a1 /* The PLT uses Elf32_Rela relocs. */ #define elf_machine_relplt elf_machine_rela diff --git a/sysdeps/sparc/dl-machine.h b/sysdeps/sparc/dl-machine.h index b50549c..dc38e17 100644 --- a/sysdeps/sparc/dl-machine.h +++ b/sysdeps/sparc/dl-machine.h @@ -100,9 +100,9 @@ elf_machine_load_address (void) static inline void elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc, - const Elf32_Sym *sym, const struct r_found_version *version) + const Elf32_Sym *sym, const struct r_found_version *version, + Elf32_Addr *const reloc_addr) { - Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); Elf32_Addr loadbase; if (ELF32_R_TYPE (reloc->r_info) == R_SPARC_RELATIVE) diff --git a/sysdeps/stub/bits/libc-lock.h b/sysdeps/stub/bits/libc-lock.h index fa4dcdd..9efd799 100644 --- a/sysdeps/stub/bits/libc-lock.h +++ b/sysdeps/stub/bits/libc-lock.h @@ -70,6 +70,20 @@ /* Unlock the recursive named lock variable. */ #define __libc_lock_unlock_recursive(NAME) + +/* Define once control variable. */ +#define __libc_once_define(NAME) int NAME = 0 + +/* Call handler iff the first call. */ +#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ + do { \ + if ((ONCE_CONTROL) == 0) { \ + INIT_FUNCTION (); \ + (ONCE_CONTROL) = 1; \ + } \ + } while (0) + + /* Start critical region with cleanup. */ #define __libc_cleanup_region_start(FCT, ARG) diff --git a/sysdeps/stub/if_index.c b/sysdeps/stub/if_index.c index c8f9ea8..ca859f7 100644 --- a/sysdeps/stub/if_index.c +++ b/sysdeps/stub/if_index.c @@ -16,28 +16,36 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <errno.h> #define __need_NULL #include <stddef.h> unsigned int if_nametoindex (const char *ifname) { + __set_errno (ENOSYS); return 0; } +stub_warning (if_nametoindex) char * if_indextoname (unsigned int ifindex, char *ifname) { + __set_errno (ENOSYS); return NULL; } +stub_warning (if_indextoname) void if_freenameindex (struct if_nameindex *ifn) { } +stub_warning (if_freenameindex) struct if_nameindex * if_nameindex (void) { + __set_errno (ENOSYS); return NULL; } +stub_warning (if_nameindex) diff --git a/sysdeps/unix/sysv/linux/netinet/inbits.h b/sysdeps/unix/sysv/linux/bits/in.h index 0dd94be..0dd94be 100644 --- a/sysdeps/unix/sysv/linux/netinet/inbits.h +++ b/sysdeps/unix/sysv/linux/bits/in.h diff --git a/sysdeps/unix/sysv/linux/if_index.c b/sysdeps/unix/sysv/linux/if_index.c index fc3bd33..41bd053 100644 --- a/sysdeps/unix/sysv/linux/if_index.c +++ b/sysdeps/unix/sysv/linux/if_index.c @@ -20,121 +20,158 @@ #include <stdio.h> #include <stdlib.h> #include <net/if.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <bits/libc-lock.h> -#define IF_INET6_FILENAME "/proc/net/if_inet6" - -/* /proc/net/if_inet6 contains lines that look like this: - * - * fe8000000000000000000000836fc168 0b 00 20 80 sit7 - * - * | | | | | | - * address --' | | | | | - * index --------' | | | | - * prefix length ---' | | | - * scope --------------' | | - * flags -----------------' | - * name -------------------------' - * - */ - -static int get_one_interface(FILE *fd, char *interface, int iflen, unsigned int *index) +/* Try to get a socket to talk to the kernel. */ +static int +opensock (void) { - char buffer[80]; - static char seps[] = " \012"; - char *c = buffer; - char *sp; - if (!fgets(buffer, 80, fd)) - return 1; - if (strtok_r(buffer, seps, &sp) == NULL) return 1; - if (c = strtok_r(NULL, seps, &sp), c == NULL) return 1; - *index = strtoul(c, NULL, 16); - if (strtok_r(NULL, seps, &sp) == NULL) return 1; - if (strtok_r(NULL, seps, &sp) == NULL) return 1; - if (strtok_r(NULL, seps, &sp) == NULL) return 1; - if (c = strtok_r(NULL, seps, &sp), c == NULL) return 1; - strncpy(interface, c, iflen); - return 0; -} + /* Cache the last AF that worked, to avoid many redundant calls to + socket(). */ + static int sock_af = -1; + int fd = -1; + __libc_lock_define_initialized (static, lock); -unsigned int if_nametoindex(const char *ifname) -{ - FILE *fd = fopen(IF_INET6_FILENAME, "r"); - char this_ifname[IFNAMSIZ]; - unsigned int this_index; - if (!fd) return 0; - while (get_one_interface(fd, this_ifname, IFNAMSIZ, &this_index) == 0) { - if (!strcmp(this_ifname, ifname)) { - fclose(fd); - return this_index; + if (sock_af != -1) + { + fd = socket (sock_af, SOCK_DGRAM, 0); + if (fd != -1) + return fd; + } + + __libc_lock_lock (lock); + + if (sock_af != -1) + fd = socket (sock_af, SOCK_DGRAM, 0); + + if (fd == -1) + { + fd = socket (sock_af = AF_INET6, SOCK_DGRAM, 0); + if (fd < 0) + fd = socket (sock_af = AF_INET, SOCK_DGRAM, 0); + if (fd < 0) + fd = socket (sock_af = AF_IPX, SOCK_DGRAM, 0); + if (fd < 0) + fd = socket (sock_af = AF_AX25, SOCK_DGRAM, 0); + if (fd < 0) + fd = socket (sock_af = AF_APPLETALK, SOCK_DGRAM, 0); } - } - fclose(fd); - return 0; + + __libc_lock_unlock (lock); + return fd; } -char *if_indextoname(unsigned int ifindex, char *ifname) +unsigned int +if_nametoindex (const char *ifname) { - FILE *fd = fopen(IF_INET6_FILENAME, "r"); - unsigned int this_index; - if (!fd) return NULL; - while (get_one_interface(fd, ifname, IFNAMSIZ, &this_index) == 0) { - if (this_index == ifindex) { - fclose(fd); - return ifname; + struct ifreq ifr; + int fd = opensock (); + + if (fd < 0) + return 0; + + strncpy (ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); + if (ioctl (fd, SIOGIFINDEX, &ifr) < 0) + { + close (fd); + return 0; } - } - fclose(fd); - return NULL; + close (fd); + return ifr.ifr_ifindex; } -void if_freenameindex(struct if_nameindex *ifn) +void +if_freenameindex (struct if_nameindex *ifn) { struct if_nameindex *ptr = ifn; while (ptr->if_name || ptr->if_index) { if (ptr->if_name) - free(ptr->if_name); - ptr++; + free (ptr->if_name); + ++ptr; } - free(ifn); + free (ifn); } -struct if_nameindex *if_nameindex(void) +struct if_nameindex * +if_nameindex (void) { - FILE *fd = fopen(IF_INET6_FILENAME, "r"); - struct if_nameindex *ifn = NULL; - int nifs = 0; - if (!fd) return NULL; + int fd = opensock (); + struct ifconf ifc; + unsigned int rq_ifs = 4, nifs, i; + struct if_nameindex *idx = NULL; + + if (fd < 0) + return NULL; + + ifc.ifc_buf = NULL; + + /* Read all the interfaces out of the kernel. */ do { - struct if_nameindex *newifn; - nifs++; - newifn = realloc(ifn, nifs*sizeof(struct if_nameindex)); - if (!newifn) + rq_ifs *= 2; + ifc.ifc_len = rq_ifs * sizeof (struct ifreq); + ifc.ifc_buf = realloc (ifc.ifc_buf, ifc.ifc_len); + if (ifc.ifc_buf == NULL) { - /* We ran out of memory. */ - if (--nifs) - { - free(ifn[nifs-1].if_name); - ifn[nifs-1].if_name = 0; - ifn[nifs-1].if_index = 0; - if_freenameindex(ifn); - } + close(fd); return NULL; } - ifn = newifn; - ifn[nifs-1].if_index = 0; - ifn[nifs-1].if_name = malloc(IFNAMSIZ); - if (ifn[nifs-1].if_name == NULL) + if (ioctl (fd, SIOCGIFCONF, &ifc) < 0) + goto jump; + } + while ((unsigned int) ifc.ifc_len == (rq_ifs * sizeof (struct ifreq))); + + nifs = ifc.ifc_len / sizeof (struct ifreq); + ifc.ifc_buf = realloc (ifc.ifc_buf, ifc.ifc_len); + + idx = malloc ((nifs+1) * sizeof (struct if_nameindex)); + if (idx == NULL) + goto jump; + + for (i = 0; i < nifs; ++i) + { + struct ifreq *ifr = &ifc.ifc_req[i]; + if ((idx[i].if_name = malloc (strlen (ifr->ifr_name)+1)) == NULL) { - if_freenameindex(ifn); - return NULL; + free (idx); + idx = NULL; + goto jump; + } + strcpy (idx[i].if_name, ifr->ifr_name); + if (ioctl (fd, SIOGIFINDEX, ifr) < 0) + { + free (idx); + idx = NULL; + goto jump; } + idx[i].if_index = ifr->ifr_ifindex; } - while (get_one_interface(fd, ifn[nifs-1].if_name, IFNAMSIZ, - &ifn[nifs-1].if_index) == 0); - free(ifn[nifs-1].if_name); - ifn[nifs-1].if_name = NULL; - fclose(fd); - return ifn; + idx[i].if_index = 0; + idx[i].if_name = NULL; + +jump: + free (ifc.ifc_buf); + close (fd); + return idx; +} + +char * +if_indextoname (unsigned int ifindex, char *ifname) +{ + struct if_nameindex *idx = if_nameindex (); + struct if_nameindex *p; + + for (p = idx; p->if_index || p->if_name; ++p) + if (p->if_index == ifindex) + { + strncpy (ifname, p->if_name, IFNAMSIZ); + if_freenameindex (idx); + return ifname; + } + + if_freenameindex (idx); + return NULL; } diff --git a/sysdeps/unix/sysv/linux/ptrace.c b/sysdeps/unix/sysv/linux/ptrace.c index 9f8053b..b50234d 100644 --- a/sysdeps/unix/sysv/linux/ptrace.c +++ b/sysdeps/unix/sysv/linux/ptrace.c @@ -52,6 +52,5 @@ ptrace (enum __ptrace_request request, ...) return res; } - __set_errno (-res); return -1; } diff --git a/sysdeps/unix/sysv/linux/sys/fsuid.h b/sysdeps/unix/sysv/linux/sys/fsuid.h index 8185b95..fd30542 100644 --- a/sysdeps/unix/sysv/linux/sys/fsuid.h +++ b/sysdeps/unix/sysv/linux/sys/fsuid.h @@ -20,7 +20,7 @@ #define _SYS_FSUID_H 1 #include <features.h> -#include <gnu/types.h> +#include <sys/types.h> __BEGIN_DECLS |