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Diffstat (limited to 'iconv/skeleton.c')
-rw-r--r--iconv/skeleton.c100
1 files changed, 82 insertions, 18 deletions
diff --git a/iconv/skeleton.c b/iconv/skeleton.c
index 27b1cab234..50ee45d2c9 100644
--- a/iconv/skeleton.c
+++ b/iconv/skeleton.c
@@ -192,11 +192,11 @@ static int to_object;
(outbuf - outerr) is always divisible by MIN_NEEDED_TO. */
# define RESET_INPUT_BUFFER \
if (MIN_NEEDED_FROM % MIN_NEEDED_TO == 0) \
- *inbuf -= (outbuf - outerr) * (MIN_NEEDED_FROM / MIN_NEEDED_TO); \
+ *inptrp -= (outbuf - outerr) * (MIN_NEEDED_FROM / MIN_NEEDED_TO); \
else if (MIN_NEEDED_TO % MIN_NEEDED_FROM == 0) \
- *inbuf -= (outbuf - outerr) / (MIN_NEEDED_TO / MIN_NEEDED_FROM); \
+ *inptrp -= (outbuf - outerr) / (MIN_NEEDED_TO / MIN_NEEDED_FROM); \
else \
- *inbuf -= ((outbuf - outerr) / MIN_NEEDED_TO) * MIN_NEEDED_FROM
+ *inptrp -= ((outbuf - outerr) / MIN_NEEDED_TO) * MIN_NEEDED_FROM
# endif
#endif
@@ -263,10 +263,15 @@ gconv_init (struct __gconv_step *step)
# define FUNCTION_NAME gconv
#endif
+/* The macros are used to access the function to convert single characters. */
+#define SINGLE(fct) SINGLE2 (fct)
+#define SINGLE2(fct) fct##_single
+
+
int
FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
- const unsigned char **inbuf, const unsigned char *inbufend,
- size_t *written, int do_flush)
+ const unsigned char **inptrp, const unsigned char *inend,
+ size_t *written, int do_flush, int consume_incomplete)
{
struct __gconv_step *next_step = step + 1;
struct __gconv_step_data *next_data = data + 1;
@@ -288,12 +293,12 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
successfully emitted the escape sequence. */
if (status == __GCONV_OK && ! data->__is_last)
status = DL_CALL_FCT (fct, (next_step, next_data, NULL, NULL,
- written, 1));
+ written, 1, consume_incomplete));
}
else
{
/* We preserve the initial values of the pointer variables. */
- const unsigned char *inptr = *inbuf;
+ const unsigned char *inptr = *inptrp;
unsigned char *outbuf = data->__outbuf;
unsigned char *outend = data->__outbufend;
unsigned char *outstart;
@@ -314,6 +319,36 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
PREPARE_LOOP
#endif
+#if MAX_NEEDED_FROM > 1 || MAX_NEEDED_TO > 1
+ /* If the function is used to implement the mb*towc*() or wc*tomb*()
+ functions we must test whether any bytes from the last call are
+ stored in the `state' object. */
+ if (((MAX_NEEDED_FROM > 1 && FROM_DIRECTION)
+ || (MAX_NEEDED_TO > 1 && !FROM_DIRECTION))
+ && consume_incomplete && (data->__statep->__count & 7) != 0)
+ {
+ /* Yep, we have some bytes left over. Process them now. */
+
+# if MAX_NEEDED_FROM > 1
+ if (MAX_NEEDED_TO == 1 || FROM_DIRECTION)
+ status = SINGLE(FROM_LOOP) (inptrp, inend, &outbuf, outend,
+ data->__statep, step->__data,
+ &converted EXTRA_LOOP_ARGS);
+# endif
+# if MAX_NEEDED_FROM > 1 && MAX_NEEDED_TO > 1 && !ONE_DIRECTION
+ else
+# endif
+# if MAX_NEEDED_TO > 1 && !ONE_DIRECTION
+ status = SINGLE(TO_LOOP) (inptrp, inend, &outbuf, outend,
+ data->__statep, step->__data,
+ &converted EXTRA_LOOP_ARGS);
+# endif
+
+ if (status != __GCONV_OK)
+ return status;
+ }
+#endif
+
#if !defined _STRING_ARCH_unaligned \
&& MIN_NEEDED_FROM != 1 && MAX_NEEDED_FROM % MIN_NEEDED_FROM == 0 \
&& MIN_NEEDED_TO != 1 && MAX_NEEDED_TO % MIN_NEEDED_TO == 0
@@ -335,7 +370,7 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
do
{
/* Remember the start value for this round. */
- inptr = *inbuf;
+ inptr = *inptrp;
/* The outbuf buffer is empty. */
outstart = outbuf;
@@ -347,12 +382,12 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
{
if (FROM_DIRECTION)
/* Run the conversion loop. */
- status = FROM_LOOP (inbuf, inbufend, &outbuf, outend,
+ status = FROM_LOOP (inptrp, inend, &outbuf, outend,
data->__statep, step->__data, &converted
EXTRA_LOOP_ARGS);
else
/* Run the conversion loop. */
- status = TO_LOOP (inbuf, inbufend, &outbuf, outend,
+ status = TO_LOOP (inptrp, inend, &outbuf, outend,
data->__statep, step->__data, &converted
EXTRA_LOOP_ARGS);
}
@@ -363,13 +398,13 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
{
if (FROM_DIRECTION)
/* Run the conversion loop. */
- status = GEN_unaligned (FROM_LOOP) (inbuf, inbufend, &outbuf,
+ status = GEN_unaligned (FROM_LOOP) (inptrp, inend, &outbuf,
outend, data->__statep,
step->__data, &converted
EXTRA_LOOP_ARGS);
else
/* Run the conversion loop. */
- status = GEN_unaligned (TO_LOOP) (inbuf, inbufend, &outbuf,
+ status = GEN_unaligned (TO_LOOP) (inptrp, inend, &outbuf,
outend, data->__statep,
step->__data, &converted
EXTRA_LOOP_ARGS);
@@ -399,7 +434,8 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
int result;
result = DL_CALL_FCT (fct, (next_step, next_data, &outerr,
- outbuf, written, 0));
+ outbuf, written, 0,
+ consume_incomplete));
if (result != __GCONV_EMPTY_INPUT)
{
@@ -413,7 +449,7 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
size_t nstatus;
/* Reload the pointers. */
- *inbuf = inptr;
+ *inptrp = inptr;
outbuf = outstart;
/* Reset the state. */
@@ -423,16 +459,16 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
if (FROM_DIRECTION)
/* Run the conversion loop. */
- nstatus = FROM_LOOP ((const unsigned char **) inbuf,
- (const unsigned char *) inbufend,
+ nstatus = FROM_LOOP ((const unsigned char **) inptrp,
+ (const unsigned char *) inend,
(unsigned char **) &outbuf,
(unsigned char *) outerr,
data->__statep, step->__data,
&converted EXTRA_LOOP_ARGS);
else
/* Run the conversion loop. */
- nstatus = TO_LOOP ((const unsigned char **) inbuf,
- (const unsigned char *) inbufend,
+ nstatus = TO_LOOP ((const unsigned char **) inptrp,
+ (const unsigned char *) inend,
(unsigned char **) &outbuf,
(unsigned char *) outerr,
data->__statep, step->__data,
@@ -465,6 +501,32 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
#ifdef END_LOOP
END_LOOP
#endif
+
+ /* If we are supposed to consume all character store now all of the
+ remaining characters in the `state' object. */
+#if MAX_NEEDED_FROM > 1 || MAX_NEEDED_TO > 1
+ if (((MAX_NEEDED_FROM > 1 && FROM_DIRECTION)
+ || (MAX_NEEDED_TO > 1 && !FROM_DIRECTION))
+ && consume_incomplete && status == __GCONV_INCOMPLETE_INPUT)
+ {
+# ifdef STORE_REST
+ mbstate_t *state = data->__statep;
+
+ STORE_REST
+# else
+ size_t cnt;
+
+ /* Make sure the remaining bytes fit into the state objects
+ buffer. */
+ assert (inend - *inptrp < 4);
+
+ for (cnt = 0; *inptrp < inend; ++cnt)
+ data->__statep->__value.__wchb[cnt] = *(*inptrp)++;
+ data->__statep->__count &= ~7;
+ data->__statep->__count |= cnt;
+# endif
+ }
+#endif
}
return status;
@@ -487,3 +549,5 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
#undef FUNCTION_NAME
#undef PREPARE_LOOP
#undef END_LOOP
+#undef ONE_DIRECTION
+#undef STORE_REST
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 07:20:52 +0000