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- Log ----------------------------------------------------------------- commit bf70f6f1face8e36030544a74e5ea04903df16cb Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Wed Jun 8 21:49:04 2016 +0200

test: add new mmap tests from glibc

Rename mmap2 test as this is a ARM specific test, only execute on ARM systems. Add more new tests from glibc.

commit 4fee9155f396cb2bcfe707f78aa4332837520f93 Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Tue Jun 7 04:14:23 2016 +0200

ssp: remove SSP legacy code

Nobody should use gcc 3.3 nowadays.

commit 2e045f9867bfc62e64412bc039400d411da1d2d2 Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Tue Jun 7 03:54:20 2016 +0200

microblaze: remove unused dead code

These files are not used, no regression found while running the testsuite.

-----------------------------------------------------------------------

Summary of changes: extra/Configs/Config.in | 16 ---- ldso/ldso/ldso.c | 6 -- libc/misc/internals/__uClibc_main.c | 7 -- libc/sysdeps/linux/common/ssp.c | 27 +----- libc/sysdeps/linux/microblaze/Makefile.arch | 5 +- libc/sysdeps/linux/microblaze/crt0.S | 52 ----------- libc/sysdeps/linux/microblaze/fixdfsi.c | 85 ----------------- libc/sysdeps/linux/microblaze/floatlib.h | 140 ---------------------------- test/mmap/Makefile.in | 6 ++ test/mmap/{mmap2.c => mmap-arm.c} | 0 test/mmap/tst-mmap-eofsync.c | 106 +++++++++++++++++++++ test/mmap/tst-mmap-fflushsync.c | 99 ++++++++++++++++++++ test/mmap/tst-mmap-offend.c | 86 +++++++++++++++++ test/mmap/tst-mmap-setvbuf.c | 81 ++++++++++++++++ 14 files changed, 380 insertions(+), 336 deletions(-) delete mode 100644 libc/sysdeps/linux/microblaze/crt0.S delete mode 100644 libc/sysdeps/linux/microblaze/fixdfsi.c delete mode 100644 libc/sysdeps/linux/microblaze/floatlib.h create mode 100644 test/mmap/Makefile.in rename test/mmap/{mmap2.c => mmap-arm.c} (100%) create mode 100644 test/mmap/tst-mmap-eofsync.c create mode 100644 test/mmap/tst-mmap-fflushsync.c create mode 100644 test/mmap/tst-mmap-offend.c create mode 100644 test/mmap/tst-mmap-setvbuf.c

diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index f3494db..a21bdac 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -2151,22 +2151,6 @@ config UCLIBC_HAS_SSP

Most people will answer N.

-config UCLIBC_HAS_SSP_COMPAT - bool "Support for gcc-3.x propolice smashing stack protector" - depends on UCLIBC_HAS_SSP - help - Add gcc-3.x propolice smashing stack protector to the library. - - This requires a patched version of GCC, supporting the - -fstack-protector[-all] options, with the __guard and - __stack_smash_handler functions removed from libgcc. - These functions are added to ldso/libc instead. - - More information at: - http://www.research.ibm.com/trl/projects/security/ssp/ - - Most people will answer N. - config SSP_QUICK_CANARY bool "Use simple guard values without accessing /dev/urandom" depends on UCLIBC_HAS_SSP diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c index 9f4e841..7bb6a34 100644 --- a/ldso/ldso/ldso.c +++ b/ldso/ldso/ldso.c @@ -120,9 +120,6 @@ static uintptr_t stack_chk_guard; * in local thread area. */ uintptr_t __stack_chk_guard attribute_relro; # endif -# ifdef __UCLIBC_HAS_SSP_COMPAT__ -uintptr_t __guard attribute_relro; -# endif #endif

#ifdef __LDSO_SEARCH_INTERP_PATH__ @@ -1217,9 +1214,6 @@ of this helper program; chances are you did not intend to run this program.\n\ # else __stack_chk_guard = stack_chk_guard; # endif -# ifdef __UCLIBC_HAS_SSP_COMPAT__ - __guard = stack_chk_guard; -# endif #endif

#ifdef __LDSO_PRELINK_SUPPORT__ diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c index 632a252..9bb81fc 100644 --- a/libc/misc/internals/__uClibc_main.c +++ b/libc/misc/internals/__uClibc_main.c @@ -61,10 +61,6 @@ static uintptr_t stack_chk_guard; /* for gcc-4.1 non-TLS */ uintptr_t __stack_chk_guard attribute_relro; # endif -/* for gcc-3.x + Etoh ssp */ -# ifdef __UCLIBC_HAS_SSP_COMPAT__ -uintptr_t __guard attribute_relro; -# endif # endif

/* @@ -274,9 +270,6 @@ void __uClibc_init(void) # else __stack_chk_guard = stack_chk_guard; # endif -# ifdef __UCLIBC_HAS_SSP_COMPAT__ - __guard = stack_chk_guard; -# endif # endif #endif

diff --git a/libc/sysdeps/linux/common/ssp.c b/libc/sysdeps/linux/common/ssp.c index 8dcc3dc..87e10c2 100644 --- a/libc/sysdeps/linux/common/ssp.c +++ b/libc/sysdeps/linux/common/ssp.c @@ -51,18 +51,11 @@ static void __cold do_msg(const char *msg1, const char *msg2, const char *msg3) }

static void __cold attribute_noreturn -#ifdef __UCLIBC_HAS_SSP_COMPAT__ -ssp_handler(char func[]) -#else ssp_handler(void) -#endif { pid_t pid; static const char msg_ssd[] = "*** stack smashing detected ***: "; static const char msg_terminated[] = " terminated"; -#ifdef __UCLIBC_HAS_SSP_COMPAT__ - static const char msg_ssa[] = ": stack smashing attack in function "; -#endif

#ifdef __DODEBUG__ struct sigaction sa; @@ -73,12 +66,7 @@ ssp_handler(void) sigprocmask(SIG_BLOCK, &mask, NULL); /* except SSP_SIGTYPE */ #endif

-#ifdef __UCLIBC_HAS_SSP_COMPAT__ - if (func != NULL) - do_msg(__uclibc_progname, msg_ssa, func); - else -#endif - do_msg(msg_ssd, __uclibc_progname, msg_terminated); + do_msg(msg_ssd, __uclibc_progname, msg_terminated);

pid = getpid(); #ifdef __DODEBUG__ @@ -96,20 +84,7 @@ ssp_handler(void) _exit(127); }

-#ifdef __UCLIBC_HAS_SSP_COMPAT__ -void __stack_smash_handler(char func[], int damaged) attribute_noreturn __cold; -void __stack_smash_handler(char func[], int damaged attribute_unused) -{ - ssp_handler(func); -} - -void __stack_chk_fail(void) -{ - ssp_handler(NULL); -} -#else strong_alias(ssp_handler,__stack_chk_fail) -#endif

#ifdef __UCLIBC_HAS_FORTIFY__ /* should be redone when activated to use common code above. diff --git a/libc/sysdeps/linux/microblaze/Makefile.arch b/libc/sysdeps/linux/microblaze/Makefile.arch index 8f14fb9..6f1e9fb 100644 --- a/libc/sysdeps/linux/microblaze/Makefile.arch +++ b/libc/sysdeps/linux/microblaze/Makefile.arch @@ -5,8 +5,5 @@ # # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.

-CSRC-y := clone.c fixdfsi.c - +CSRC-y := clone.c SSRC-y := setjmp.S __longjmp.S vfork.S - -ARCH_HEADERS := floatlib.h diff --git a/libc/sysdeps/linux/microblaze/crt0.S b/libc/sysdeps/linux/microblaze/crt0.S deleted file mode 100644 index 6be1e4d..0000000 --- a/libc/sysdeps/linux/microblaze/crt0.S +++ /dev/null @@ -1,52 +0,0 @@ -/* - * libc/sysdeps/linux/microblaze/crt0.S -- Initial program entry point for linux/microblaze - * - * Copyright (C) 2003 John Williams jwilliams@itee.uq.edu.au - * Copyright (C) 2001,2002 NEC Corporation - * Copyright (C) 2001,2002 Miles Bader miles@gnu.org - * - * This file is subject to the terms and conditions of the GNU Lesser - * General Public License. See the file COPYING.LIB in the main - * directory of this archive for more details. - * - * Written by Miles Bader miles@gnu.org - */ - -#include <clinkage.h> - -/* Upon entry, the stack contains the following data: - argc, argv[0], ..., argv[argc-1], 0, envp[0], ..., 0 -*/ - - .text -C_ENTRY(_start): - lw r5, r0, r1 /* Arg 0: argc */ - - addi r6, r1, 4 /* Arg 1: argv */ - - /* Arg 2: envp */ - addi r3, r5, 1 /* skip argc elements to get envp start */ - /* ...plus the NULL at the end of argv */ - add r3, r3, r3 /* Make word offset */ - add r3, r3, r3 - add r7, r6, r3 /* add to argv to get offset */ - - /* tail-call uclibc's startup routine */ - brid C_SYMBOL_NAME(__uClibc_main) - nop - - -/* Stick in a dummy reference to `main', so that if an application - is linking when the `main' function is in a static library (.a) - we can be sure that `main' actually gets linked in. */ -L_dummy_main_reference: - .long C_SYMBOL_NAME(main) - -/* Define a symbol for the first piece of initialized data. */ - .data - .globl __data_start -__data_start: - .long 0 - .weak data_start - data_start = __data_start - diff --git a/libc/sysdeps/linux/microblaze/fixdfsi.c b/libc/sysdeps/linux/microblaze/fixdfsi.c deleted file mode 100644 index 1611176..0000000 --- a/libc/sysdeps/linux/microblaze/fixdfsi.c +++ /dev/null @@ -1,85 +0,0 @@ -/* -** libgcc support for software floating point. -** Copyright (C) 1991 by Pipeline Associates, Inc. All rights reserved. -** Permission is granted to do *anything* you want with this file, -** commercial or otherwise, provided this message remains intact. So there! -** I would appreciate receiving any updates/patches/changes that anyone -** makes, and am willing to be the repository for said changes (am I -** making a big mistake?). - -Warning! Only single-precision is actually implemented. This file -won't really be much use until double-precision is supported. - -However, once that is done, this file might eventually become a -replacement for libgcc1.c. It might also make possible -cross-compilation for an IEEE target machine from a non-IEEE -host such as a VAX. - -If you'd like to work on completing this, please talk to rms@gnu.ai.mit.edu. - ---> Double precision floating support added by James Carlson on 20 April 1998. - -** -** Pat Wood -** Pipeline Associates, Inc. -** pipeline!phw@motown.com or -** sun!pipeline!phw or -** uunet!motown!pipeline!phw -** -** 05/01/91 -- V1.0 -- first release to gcc mailing lists -** 05/04/91 -- V1.1 -- added float and double prototypes and return values -** -- fixed problems with adding and subtracting zero -** -- fixed rounding in truncdfsf2 -** -- fixed SWAP define and tested on 386 -*/ - -/* -** The following are routines that replace the libgcc soft floating point -** routines that are called automatically when -msoft-float is selected. -** The support single and double precision IEEE format, with provisions -** for byte-swapped machines (tested on 386). Some of the double-precision -** routines work at full precision, but most of the hard ones simply punt -** and call the single precision routines, producing a loss of accuracy. -** long long support is not assumed or included. -** Overall accuracy is close to IEEE (actually 68882) for single-precision -** arithmetic. I think there may still be a 1 in 1000 chance of a bit -** being rounded the wrong way during a multiply. I'm not fussy enough to -** bother with it, but if anyone is, knock yourself out. -** -** Efficiency has only been addressed where it was obvious that something -** would make a big difference. Anyone who wants to do this right for -** best speed should go in and rewrite in assembler. -** -** I have tested this only on a 68030 workstation and 386/ix integrated -** in with -msoft-float. -*/ - -#include "floatlib.h" - -/* convert double to int */ -long -__fixdfsi (double a1) -{ - register union double_long dl1; - register int exp; - register long l; - - dl1.d = a1; - - if (!dl1.l.upper && !dl1.l.lower) - return (0); - - exp = EXPD (dl1) - EXCESSD - 31; - l = MANTD (dl1); - - if (exp > 0) - return SIGND(dl1) ? (1<<31) : ((1ul<<31)-1); - - /* shift down until exp = 0 or l = 0 */ - if (exp < 0 && exp > -32 && l) - l >>= -exp; - else - return (0); - - return (SIGND (dl1) ? -l : l); -} diff --git a/libc/sysdeps/linux/microblaze/floatlib.h b/libc/sysdeps/linux/microblaze/floatlib.h deleted file mode 100644 index 817ba7d..0000000 --- a/libc/sysdeps/linux/microblaze/floatlib.h +++ /dev/null @@ -1,140 +0,0 @@ -/* -** libgcc support for software floating point. -** Copyright (C) 1991 by Pipeline Associates, Inc. All rights reserved. -** Permission is granted to do *anything* you want with this file, -** commercial or otherwise, provided this message remains intact. So there! -** I would appreciate receiving any updates/patches/changes that anyone -** makes, and am willing to be the repository for said changes (am I -** making a big mistake?). - -Warning! Only single-precision is actually implemented. This file -won't really be much use until double-precision is supported. - -However, once that is done, this file might eventually become a -replacement for libgcc1.c. It might also make possible -cross-compilation for an IEEE target machine from a non-IEEE -host such as a VAX. - -If you'd like to work on completing this, please talk to rms@gnu.ai.mit.edu. - ---> Double precision floating support added by James Carlson on 20 April 1998. - -** -** Pat Wood -** Pipeline Associates, Inc. -** pipeline!phw@motown.com or -** sun!pipeline!phw or -** uunet!motown!pipeline!phw -** -** 05/01/91 -- V1.0 -- first release to gcc mailing lists -** 05/04/91 -- V1.1 -- added float and double prototypes and return values -** -- fixed problems with adding and subtracting zero -** -- fixed rounding in truncdfsf2 -** -- fixed SWAP define and tested on 386 -*/ - -/* -** The following are routines that replace the libgcc soft floating point -** routines that are called automatically when -msoft-float is selected. -** The support single and double precision IEEE format, with provisions -** for byte-swapped machines (tested on 386). Some of the double-precision -** routines work at full precision, but most of the hard ones simply punt -** and call the single precision routines, producing a loss of accuracy. -** long long support is not assumed or included. -** Overall accuracy is close to IEEE (actually 68882) for single-precision -** arithmetic. I think there may still be a 1 in 1000 chance of a bit -** being rounded the wrong way during a multiply. I'm not fussy enough to -** bother with it, but if anyone is, knock yourself out. -** -** Efficiency has only been addressed where it was obvious that something -** would make a big difference. Anyone who wants to do this right for -** best speed should go in and rewrite in assembler. -** -** I have tested this only on a 68030 workstation and 386/ix integrated -** in with -msoft-float. -*/ - -#ifndef __FLOAT_LIB_H__ -#define __FLOAT_LIB_H__ -/* the following deal with IEEE single-precision numbers */ -#define EXCESS 126 -#define SIGNBIT 0x80000000 -#define HIDDEN (1 << 23) -#define SIGN(fp) ((fp) & SIGNBIT) -#define EXP(fp) (((fp) >> 23) & 0xFF) -#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN) -#define PACK(s,e,m) ((s) | ((e) << 23) | (m)) - -/* the following deal with IEEE double-precision numbers */ -#define EXCESSD 1022 -#define HIDDEND (1 << 20) -#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF) -#define SIGND(fp) ((fp.l.upper) & SIGNBIT) -#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \ - (fp.l.lower >> 22)) -#define HIDDEND_LL ((long long)1 << 52) -#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL) -#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m)) - -/* define SWAP for 386/960 reverse-byte-order brain-damaged CPUs */ -union double_long { - double d; -#ifdef SWAP - struct { - unsigned long lower; - long upper; - } l; -#else - struct { - long upper; - unsigned long lower; - } l; -#endif - long long ll; -}; - -union float_long - { - float f; - long l; - }; - -#endif - -/* Functions defined in different files */ - -float __addsf3 (float, float); -float __subsf3 (float, float); -long __cmpsf2 (float, float); -float __mulsf3 (float, float); -float __divsf3 (float, float); -double __floatsidf (register long); -double __floatdidf (register long long); -float __floatsisf (register long ); -float __floatdisf (register long long ); -float __negsf2 (float); -double __negdf2 (double); -double __extendsfdf2 (float); -float __truncdfsf2 (double); -long __cmpdf2 (double, double); -long __fixsfsi (float); -long __fixdfsi (double); -long long __fixdfdi (double); -unsigned long __fixunsdfsi (double); -unsigned long long __fixunsdfdi (double); -double __adddf3 (double, double); -double __subdf3 (double, double); -double __muldf3 (double, double); -double __divdf3 (double, double); -int __gtdf2 (double, double); -int __gedf2 (double, double); -int __ltdf2 (double, double); -int __ledf2 (double, double); -int __eqdf2 (double, double); -int __nedf2 (double, double); -int __gtsf2 (float, float); -int __gesf2 (float, float); -int __ltsf2 (float, float); -int __lesf2 (float, float); -int __eqsf2 (float, float); -int __nesf2 (float, float); diff --git a/test/mmap/Makefile.in b/test/mmap/Makefile.in new file mode 100644 index 0000000..7bb34ac --- /dev/null +++ b/test/mmap/Makefile.in @@ -0,0 +1,6 @@ +# uClibc mmap tests +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + +ifneq ($(TARGET_ARCH),arm) +TESTS_DISABLED += mmap-arm +endif diff --git a/test/mmap/mmap2.c b/test/mmap/mmap-arm.c similarity index 100% rename from test/mmap/mmap2.c rename to test/mmap/mmap-arm.c diff --git a/test/mmap/tst-mmap-eofsync.c b/test/mmap/tst-mmap-eofsync.c new file mode 100644 index 0000000..e8ef727 --- /dev/null +++ b/test/mmap/tst-mmap-eofsync.c @@ -0,0 +1,106 @@ +/* Test program for synchronization of stdio state with file after EOF. */ + +#include <stdio.h> +#include <error.h> +#include <errno.h> + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () +#include <test-skeleton.c> + +static char *temp_file; +static int temp_fd; + +static char text1[] = "Line the first\n"; +static char text2[] = "Line the second\n"; + +static void +do_prepare (void) +{ + temp_fd = create_temp_file ("tst-mmap-eofsync.", &temp_file); + if (temp_fd == -1) + error (1, errno, "cannot create temporary file"); + else + { + ssize_t cc = write (temp_fd, text1, sizeof text1 - 1); + if (cc != sizeof text1 - 1) + error (1, errno, "cannot write to temporary file"); + } +} + +static int +do_test (void) +{ + FILE *f; + char buf[128]; + int result = 0; + int c; + + f = fopen (temp_file, "rm"); + if (f == NULL) + { + perror (temp_file); + return 1; + } + + if (fgets (buf, sizeof buf, f) == NULL) + { + perror ("fgets"); + return 1; + } + + if (strcmp (buf, text1)) + { + printf ("read "%s", expected "%s"\n", buf, text1); + result = 1; + } + + printf ("feof = %d, ferror = %d immediately after fgets\n", + feof (f), ferror (f)); + +#if 1 + c = fgetc (f); + if (c == EOF) + printf ("fgetc -> EOF (feof = %d, ferror = %d)\n", + feof (f), ferror (f)); + else + { + printf ("fgetc returned %o (feof = %d, ferror = %d)\n", + c, feof (f), ferror (f)); + result = 1; + } +#endif + + c = write (temp_fd, text2, sizeof text2 - 1); + if (c == sizeof text2 - 1) + printf ("wrote more to file\n"); + else + { + printf ("wrote %d != %zd (%m)\n", c, sizeof text2 - 1); + result = 1; + } + + if (fgets (buf, sizeof buf, f) == NULL) + { + printf ("second fgets fails: feof = %d, ferror = %d (%m)\n", + feof (f), ferror (f)); + clearerr (f); + if (fgets (buf, sizeof buf, f) == NULL) + { + printf ("retry fgets fails: feof = %d, ferror = %d (%m)\n", + feof (f), ferror (f)); + result = 1; + } + } + if (result == 0 && strcmp (buf, text2)) + { + printf ("second time read "%s", expected "%s"\n", buf, text2); + result = 1; + } + + fclose (f); + + return result; +} diff --git a/test/mmap/tst-mmap-fflushsync.c b/test/mmap/tst-mmap-fflushsync.c new file mode 100644 index 0000000..24ae33c --- /dev/null +++ b/test/mmap/tst-mmap-fflushsync.c @@ -0,0 +1,99 @@ +/* Test program for synchronization of stdio state with file after fflush. */ + +#include <stdio.h> +#include <error.h> +#include <errno.h> + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () +#include <test-skeleton.c> + +static char *temp_file; +static int temp_fd; + +static char text1[] = "Line the first\n"; +static char text2[] = "Line the second\n"; + +static void +do_prepare (void) +{ + temp_fd = create_temp_file ("tst-mmap-eofsync.", &temp_file); + if (temp_fd == -1) + error (1, errno, "cannot create temporary file"); + else + { + ssize_t cc = write (temp_fd, text1, sizeof text1 - 1); + if (cc != sizeof text1 - 1) + error (1, errno, "cannot write to temporary file"); + } +} + +static int +do_test (void) +{ + FILE *f; + char buf[128]; + int result = 0; + int c; + + f = fopen (temp_file, "rm"); + if (f == NULL) + { + perror (temp_file); + return 1; + } + + if (fgets (buf, sizeof buf, f) == NULL) + { + perror ("fgets"); + return 1; + } + + if (strcmp (buf, text1)) + { + printf ("read "%s", expected "%s"\n", buf, text1); + result = 1; + } + + printf ("feof = %d, ferror = %d immediately after fgets\n", + feof (f), ferror (f)); + + if (fflush (f) != 0) + { + printf ("fflush failed! %m\n"); + result = 1; + } + + c = write (temp_fd, text2, sizeof text2 - 1); + if (c == sizeof text2 - 1) + printf ("wrote more to file\n"); + else + { + printf ("wrote %d != %zd (%m)\n", c, sizeof text2 - 1); + result = 1; + } + + if (fgets (buf, sizeof buf, f) == NULL) + { + printf ("second fgets fails: feof = %d, ferror = %d (%m)\n", + feof (f), ferror (f)); + clearerr (f); + if (fgets (buf, sizeof buf, f) == NULL) + { + printf ("retry fgets fails: feof = %d, ferror = %d (%m)\n", + feof (f), ferror (f)); + result = 1; + } + } + if (result == 0 && strcmp (buf, text2)) + { + printf ("second time read "%s", expected "%s"\n", buf, text2); + result = 1; + } + + fclose (f); + + return result; +} diff --git a/test/mmap/tst-mmap-offend.c b/test/mmap/tst-mmap-offend.c new file mode 100644 index 0000000..19732e6 --- /dev/null +++ b/test/mmap/tst-mmap-offend.c @@ -0,0 +1,86 @@ +/* Test case for bug with mmap stdio read past end of file. */ + +#include <stdio.h> +#include <error.h> +#include <errno.h> + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () +#include <test-skeleton.c> + +static char *temp_file; + +static const char text1[] = "hello\n"; + +static void +do_prepare (void) +{ + int temp_fd = create_temp_file ("tst-mmap-offend.", &temp_file); + if (temp_fd == -1) + error (1, errno, "cannot create temporary file"); + else + { + ssize_t cc = write (temp_fd, text1, sizeof text1 - 1); + if (cc != sizeof text1 - 1) + error (1, errno, "cannot write to temporary file"); + } + close (temp_fd); +} + +static int +do_test (void) +{ + unsigned char buffer[8192]; + int result = 0; + FILE *f = fopen (temp_file, "rm"); + size_t cc; + + if (f == NULL) + { + perror (temp_file); + return 1; + } + + cc = fread (buffer, 1, sizeof (buffer), f); + printf ("fread %zu: "%.*s"\n", cc, (int) cc, buffer); + if (cc != sizeof text1 - 1) + { + perror ("fread"); + result = 1; + } + + if (fseek (f, 2048, SEEK_SET) != 0) + { + perror ("fseek off end"); + result = 1; + } + + if (fread (buffer, 1, sizeof (buffer), f) != 0 + || ferror (f) || !feof (f)) + { + printf ("after fread error %d eof %d\n", + ferror (f), feof (f)); + result = 1; + } + + printf ("ftell %ld\n", ftell (f)); + + if (fseek (f, 0, SEEK_SET) != 0) + { + perror ("fseek rewind"); + result = 1; + } + + cc = fread (buffer, 1, sizeof (buffer), f); + printf ("fread after rewind %zu: "%.*s"\n", cc, (int) cc, buffer); + if (cc != sizeof text1 - 1) + { + perror ("fread after rewind"); + result = 1; + } + + fclose (f); + return result; +} diff --git a/test/mmap/tst-mmap-setvbuf.c b/test/mmap/tst-mmap-setvbuf.c new file mode 100644 index 0000000..33d60b7 --- /dev/null +++ b/test/mmap/tst-mmap-setvbuf.c @@ -0,0 +1,81 @@ +/* Test setvbuf on readonly fopen (using mmap stdio). + Copyright (C) 2002-2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek jakub@redhat.com, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + http://www.gnu.org/licenses/. */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +int main (void) +{ + char name[] = "/tmp/tst-mmap-setvbuf.XXXXXX"; + char buf[4096]; + const char * const test = "Let's see if mmap stdio works with setvbuf.\n"; + char temp[strlen (test) + 1]; + int fd = mkstemp (name); + FILE *f; + + if (fd == -1) + { + printf ("%u: cannot open temporary file: %m\n", __LINE__); + exit (1); + } + + f = fdopen (fd, "w"); + if (f == NULL) + { + printf ("%u: cannot fdopen temporary file: %m\n", __LINE__); + exit (1); + } + + fputs (test, f); + fclose (f); + + f = fopen (name, "rm"); + if (f == NULL) + { + printf ("%u: cannot fopen temporary file: %m\n", __LINE__); + exit (1); + } + + if (setvbuf (f, buf, _IOFBF, sizeof buf)) + { + printf ("%u: setvbuf failed: %m\n", __LINE__); + exit (1); + } + + if (fread (temp, 1, strlen (test), f) != strlen (test)) + { + printf ("%u: couldn't read the file back: %m\n", __LINE__); + exit (1); + } + temp [strlen (test)] = '\0'; + + if (strcmp (test, temp)) + { + printf ("%u: read different string than was written:\n%s%s", + __LINE__, test, temp); + exit (1); + } + + fclose (f); + + unlink (name); + exit (0); +}

hooks/post-receive