diff options
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/Makefile | 2 | ||||
| -rw-r--r-- | libio/bug-rewind.c | 20 | ||||
| -rw-r--r-- | libio/bug-rewind2.c | 62 | ||||
| -rw-r--r-- | libio/wfileops.c | 6 |
4 files changed, 83 insertions, 7 deletions
diff --git a/libio/Makefile b/libio/Makefile index 58d6575340..a6d3a24cc1 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -51,7 +51,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \ tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-fopenloc \ tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf \ tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof \ - tst-freopen bug-rewind bug-ungetc bug-fseek \ + tst-freopen bug-rewind bug-rewind2 bug-ungetc bug-fseek \ tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \ tst-mmap2-eofsync tst-mmap-offend test-srcs = test-freopen diff --git a/libio/bug-rewind.c b/libio/bug-rewind.c index 52bf38bccc..4f8242df3d 100644 --- a/libio/bug-rewind.c +++ b/libio/bug-rewind.c @@ -5,11 +5,26 @@ #define FAILED 3 +static int fd; + +static void prepare (void); +#define PREPARE(argc, argv) prepare () + + #define TEST_FUNCTION do_test () static int do_test (void); #include "../test-skeleton.c" +static void +prepare (void) +{ + fd = create_temp_file ("wrewind.", NULL); + if (fd == -1) + exit (3); +} + + static int do_test (void) { @@ -17,11 +32,6 @@ do_test (void) char arg1; char arg2; int ret1, ret2, result, num; - int fd; - - fd = create_temp_file ("wrewind.", NULL); - if (fd == -1) - return 3; ret1 = 0; ret2 = 0; diff --git a/libio/bug-rewind2.c b/libio/bug-rewind2.c new file mode 100644 index 0000000000..51b5744330 --- /dev/null +++ b/libio/bug-rewind2.c @@ -0,0 +1,62 @@ +#include <stdio.h> +#include <wchar.h> + + +static int fd; + +static void prepare (void); +#define PREPARE(argc, argv) prepare () + + +#define TEST_FUNCTION do_test () +static int do_test (void); +#include "../test-skeleton.c" + + +static void +prepare (void) +{ + fd = create_temp_file ("wrewind2.", NULL); + if (fd == -1) + exit (3); +} + + +static int +do_test (void) +{ + wchar_t dummy[10]; + int ret = 0; + FILE *fp; + int result = 0; + + fp = fdopen (fd, "w+"); + if (fp == NULL) + { + puts ("fopen(""testfile"", ""w+"") returned NULL."); + return 1; + } + else + { + fwprintf (fp, L"abcd"); + printf ("current pos = %ld\n", ftell (fp)); + if (ftell (fp) != 4) + result = 1; + + rewind (fp); + ret = fwscanf (fp, L"%c", dummy); + + printf ("current pos = %ld\n", ftell (fp)); + if (ftell (fp) != 1) + result = 1; + + rewind (fp); + printf ("current pos = %ld\n", ftell (fp)); + if (ftell (fp) != 0) + result = 1; + + fclose (fp); + } + + return result; +} diff --git a/libio/wfileops.c b/libio/wfileops.c index e9fe55bba5..02933b730e 100644 --- a/libio/wfileops.c +++ b/libio/wfileops.c @@ -674,7 +674,7 @@ _IO_wfile_seekoff (fp, offset, dir, mode) + (sizeof (buffer) / sizeof (buffer[0])), &ignore); - if (status != __codecvt_ok && status != __codecvt_partial) + if (status != __codecvt_ok && status != __codecvt_partial) { fp->_flags |= _IO_ERR_SEEN; goto dumb; @@ -682,6 +682,10 @@ _IO_wfile_seekoff (fp, offset, dir, mode) } while (read_ptr_copy != fp->_IO_read_ptr); + fp->_offset = (fp->_offset + - (fp->_IO_read_end - fp->_IO_read_base) + + rel_offset); + fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_base; |