diff options
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/Makefile | 8 | ||||
| -rw-r--r-- | libio/fmemopen.c | 12 | ||||
| -rw-r--r-- | libio/oldfmemopen.c | 12 | ||||
| -rw-r--r-- | libio/test-fmemopen.c | 30 |
4 files changed, 58 insertions, 4 deletions
diff --git a/libio/Makefile b/libio/Makefile index 7b3bcf90fe..604f4196b3 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -148,8 +148,10 @@ CFLAGS-tst_putwc.c = -DOBJPFX=\"$(objpfx)\" tst_wprintf2-ARGS = "Some Text" +test-fmemopen-ENV = MALLOC_TRACE=$(objpfx)test-fmemopen.mtrace tst-fopenloc-ENV = MALLOC_TRACE=$(objpfx)tst-fopenloc.mtrace +generated += test-fmemopen.mtrace test-fmemopen.check generated += tst-fopenloc.mtrace tst-fopenloc.check aux := fileops genops stdfiles stdio strops @@ -164,7 +166,7 @@ shared-only-routines = oldiofopen oldiofdopen oldiofclose oldfileops \ oldiofsetpos64 ifeq ($(run-built-tests),yes) -tests-special += $(objpfx)test-freopen.out +tests-special += $(objpfx)test-freopen.out $(objpfx)test-fmemopen-mem.out ifeq (yes,$(build-shared)) # Run tst-fopenloc-cmp.out and tst-openloc-mem.out only if shared # library is enabled since they depend on tst-fopenloc.out. @@ -184,6 +186,10 @@ $(objpfx)tst-fopenloc-cmp.out: ../iconvdata/testdata/ISO-8859-1..UTF8 \ cmp $^ > $@; \ $(evaluate-test) +$(objpfx)test-fmemopen-mem.out: $(objpfx)test-fmemopen.out + $(common-objpfx)malloc/mtrace $(objpfx)test-fmemopen.mtrace > $@; \ + $(evaluate-test) + $(objpfx)tst-fopenloc-mem.out: $(objpfx)tst-fopenloc.out $(common-objpfx)malloc/mtrace $(objpfx)tst-fopenloc.mtrace > $@; \ $(evaluate-test) diff --git a/libio/fmemopen.c b/libio/fmemopen.c index 3ab3e8dac4..66e2d833ee 100644 --- a/libio/fmemopen.c +++ b/libio/fmemopen.c @@ -149,6 +149,7 @@ __fmemopen (void *buf, size_t len, const char *mode) { cookie_io_functions_t iof; fmemopen_cookie_t *c; + FILE *result; c = (fmemopen_cookie_t *) calloc (sizeof (fmemopen_cookie_t), 1); if (c == NULL) @@ -209,7 +210,16 @@ __fmemopen (void *buf, size_t len, const char *mode) iof.seek = fmemopen_seek; iof.close = fmemopen_close; - return _IO_fopencookie (c, mode, iof); + result = _IO_fopencookie (c, mode, iof); + if (__glibc_unlikely (result == NULL)) + { + if (c->mybuffer) + free (c->buffer); + + free (c); + } + + return result; } libc_hidden_def (__fmemopen) versioned_symbol (libc, __fmemopen, fmemopen, GLIBC_2_22); diff --git a/libio/oldfmemopen.c b/libio/oldfmemopen.c index 8e35672327..88ef8fa7f0 100644 --- a/libio/oldfmemopen.c +++ b/libio/oldfmemopen.c @@ -204,6 +204,7 @@ __old_fmemopen (void *buf, size_t len, const char *mode) { cookie_io_functions_t iof; fmemopen_cookie_t *c; + FILE *result; if (__glibc_unlikely (len == 0)) { @@ -259,7 +260,16 @@ __old_fmemopen (void *buf, size_t len, const char *mode) iof.seek = fmemopen_seek; iof.close = fmemopen_close; - return _IO_fopencookie (c, mode, iof); + result = _IO_fopencookie (c, mode, iof); + if (__glibc_unlikely (result == NULL)) + { + if (c->mybuffer) + free (c->buffer); + + free (c); + } + + return result; } compat_symbol (libc, __old_fmemopen, fmemopen, GLIBC_2_2); #endif diff --git a/libio/test-fmemopen.c b/libio/test-fmemopen.c index 63ca89f300..e8e757f351 100644 --- a/libio/test-fmemopen.c +++ b/libio/test-fmemopen.c @@ -22,6 +22,32 @@ static char buffer[] = "foobar"; #include <stdio.h> #include <string.h> #include <errno.h> +#include <mcheck.h> + +static int +do_bz18820 (void) +{ + char ch; + FILE *stream; + + stream = fmemopen (&ch, 1, "?"); + if (stream) + { + printf ("fmemopen: expected NULL, got %p\n", stream); + fclose (stream); + return 1; + } + + stream = fmemopen (NULL, 42, "?"); + if (stream) + { + printf ("fmemopen: expected NULL, got %p\n", stream); + fclose (stream); + return 2; + } + + return 0; +} static int do_test (void) @@ -30,6 +56,8 @@ do_test (void) FILE *stream; int ret = 0; + mtrace (); + stream = fmemopen (buffer, strlen (buffer), "r+"); while ((ch = fgetc (stream)) != EOF) @@ -44,7 +72,7 @@ do_test (void) fclose (stream); - return ret; + return ret + do_bz18820 (); } #define TEST_FUNCTION do_test () |