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Code Issues Projects Releases Wiki Activity

Be more strict about invalid UTF-8.

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This commit is contained in:
nicm
2015-11-14 10:56:31 +00:00
parent c56b81a2ce
commit 64333e3ef8
6 changed files with 76 additions and 54 deletions
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56
screen-write.c
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@ -115,6 +115,7 @@ screen_write_strlen(const char *fmt, ...)
struct utf8_data ud;
u_char *ptr;
size_t left, size = 0;
int more;
va_start(ap, fmt);
xvasprintf(&msg, fmt, ap);
@ -128,11 +129,12 @@ screen_write_strlen(const char *fmt, ...)
left = strlen(ptr);
if (left < (size_t)ud.size - 1)
break;
while (utf8_append(&ud, *ptr))
while ((more = utf8_append(&ud, *ptr)) == 1)
ptr++;
ptr++;
size += ud.width;
if (more == 0)
size += ud.width;
} else {
if (*ptr > 0x1f && *ptr < 0x7f)
size++;
@ -176,6 +178,7 @@ screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
struct utf8_data ud;
u_char *ptr;
size_t left, size = 0;
int more;
xvasprintf(&msg, fmt, ap);
@ -187,22 +190,24 @@ screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
left = strlen(ptr);
if (left < (size_t)ud.size - 1)
break;
while (utf8_append(&ud, *ptr))
while ((more = utf8_append(&ud, *ptr)) == 1)
ptr++;
ptr++;
if (maxlen > 0 &&
size + ud.width > (size_t) maxlen) {
while (size < (size_t) maxlen) {
screen_write_putc(ctx, gc, ' ');
size++;
if (more == 0) {
if (maxlen > 0 &&
size + ud.width > (size_t) maxlen) {
while (size < (size_t) maxlen) {
screen_write_putc(ctx, gc, ' ');
size++;
}
break;
}
break;
}
size += ud.width;
size += ud.width;
utf8_copy(&gc->data, &ud);
screen_write_cell(ctx, gc);
utf8_copy(&gc->data, &ud);
screen_write_cell(ctx, gc);
}
} else {
if (maxlen > 0 && size + 1 > (size_t) maxlen)
break;
@ -231,6 +236,7 @@ screen_write_cnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
char *msg;
u_char *ptr, *last;
size_t left, size = 0;
int more;
va_start(ap, fmt);
xvasprintf(&msg, fmt, ap);
@ -260,22 +266,24 @@ screen_write_cnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
left = strlen(ptr);
if (left < (size_t)ud.size - 1)
break;
while (utf8_append(&ud, *ptr))
while ((more = utf8_append(&ud, *ptr)) == 1)
ptr++;
ptr++;
if (maxlen > 0 &&
size + ud.width > (size_t) maxlen) {
while (size < (size_t) maxlen) {
screen_write_putc(ctx, gc, ' ');
size++;
if (more == 0) {
if (maxlen > 0 &&
size + ud.width > (size_t) maxlen) {
while (size < (size_t) maxlen) {
screen_write_putc(ctx, gc, ' ');
size++;
}
break;
}
break;
}
size += ud.width;
size += ud.width;
utf8_copy(&lgc.data, &ud);
screen_write_cell(ctx, &lgc);
utf8_copy(&lgc.data, &ud);
screen_write_cell(ctx, &lgc);
}
} else {
if (maxlen > 0 && size + 1 > (size_t) maxlen)
break;