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authorUlrich Drepper <drepper@redhat.com>2000-09-05 22:52:41 +0000
committerUlrich Drepper <drepper@redhat.com>2000-09-05 22:52:41 +0000
commit74ac2cecc74de4f6de8fce2192299d6ac23cdd12 (patch)
tree569660c7a6532f0caee9c64a50aa94f670eddbdb /stdio-common/vfprintf.c
parent628d9ffc34acfb17bc5dbbce685fd264b681a956 (diff)
downloadglibc-74ac2cecc74de4f6de8fce2192299d6ac23cdd12.tar.gz
Update.
2000-09-05 Ulrich Drepper <drepper@redhat.com> * stdio-common/vfprintf.c (process_string_arg): Handle precision in wide char case correctly. Don't allocate too long temporary strings with alloca. * stdio-common/Makefile (tests): Add tst-swprintf. (tst-swprintf-ENV): New variable. * stdio-common/tst-swprintf.c: New file. * soft-fp/sysdeps/sparc/sparc64/qp_neg.S: Move from here... * sysdeps/sparc/sparc64/soft-fp/qp_neg.S: ... to here.
Diffstat (limited to 'stdio-common/vfprintf.c')
-rw-r--r--stdio-common/vfprintf.c31
1 files changed, 26 insertions, 5 deletions
diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index b90f26f7fa..6219d795f8 100644
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -995,6 +995,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
LABEL (form_string): \
{ \
size_t len; \
+ int string_malloced; \
\
/* The string argument could in fact be `char *' or `wchar_t *'. \
But this should not make a difference here. */ \
@@ -1006,6 +1007,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
/* Entry point for printing other strings. */ \
LABEL (print_string): \
\
+ string_malloced = 0; \
if (string == NULL) \
{ \
/* Write "(null)" if there's space. */ \
@@ -1028,14 +1030,19 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
const char *mbs = (const char *) string; \
mbstate_t mbstate; \
\
- len = prec != -1 ? strnlen (mbs, prec) : strlen (mbs); \
+ len = prec != -1 ? prec : strlen (mbs); \
\
/* Allocate dynamically an array which definitely is long \
enough for the wide character version. */ \
- string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
+ if (len < 8192 \
+ || ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
+ == NULL)) \
+ string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
+ else \
+ string_malloced = 1; \
\
memset (&mbstate, '\0', sizeof (mbstate_t)); \
- len = __mbsnrtowcs (string, &mbs, len, len, &mbstate); \
+ len = __mbsrtowcs (string, &mbs, len, &mbstate); \
if (len == (size_t) -1) \
{ \
/* Illegal multibyte character. */ \
@@ -1064,6 +1071,8 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
outstring (string, len); \
if (left) \
PAD (L' '); \
+ if (string_malloced) \
+ free (string); \
} \
break;
#else
@@ -1112,6 +1121,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
LABEL (form_string): \
{ \
size_t len; \
+ int string_malloced; \
\
/* The string argument could in fact be `char *' or `wchar_t *'. \
But this should not make a difference here. */ \
@@ -1123,6 +1133,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
/* Entry point for printing other strings. */ \
LABEL (print_string): \
\
+ string_malloced = 0; \
if (string == NULL) \
{ \
/* Write "(null)" if there's space. */ \
@@ -1181,7 +1192,11 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
if (prec > 0) \
{ \
/* The string `s2' might not be NUL terminated. */ \
- string = (char *) alloca (prec); \
+ if (prec < 32768 \
+ || (string = (char *) malloc (prec)) == NULL) \
+ string = (char *) alloca (prec); \
+ else \
+ string_malloced = 1; \
len = __wcsrtombs (string, &s2, prec, &mbstate); \
} \
else \
@@ -1191,7 +1206,11 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
{ \
assert (__mbsinit (&mbstate)); \
s2 = (const wchar_t *) string; \
- string = (char *) alloca (len + 1); \
+ if (len + 1 < 32768 \
+ || (string = (char *) malloc (len + 1)) == NULL) \
+ string = (char *) alloca (len + 1); \
+ else \
+ string_malloced = 1; \
(void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
} \
} \
@@ -1215,6 +1234,8 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
outstring (string, len); \
if (left) \
PAD (' '); \
+ if (string_malloced) \
+ free (string); \
} \
break;
#endif