va_start(args, format);
len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
va_end(args);
- if (len > sizeof(buf[bufidx])) {
+ if (len >= sizeof(buf[bufidx])) {
fprintf(stderr, "[html.c] string truncated: %s\n", format);
exit(1);
}
void html_txt(const char *txt)
{
- const char *t = txt;
- while (t && *t) {
- int c = *t;
- if (c == '<' || c == '>' || c == '&') {
- html_raw(txt, t - txt);
- if (c == '>')
- html(">");
- else if (c == '<')
- html("<");
- else if (c == '&')
- html("&");
- txt = t + 1;
- }
- t++;
- }
- if (t != txt)
- html(txt);
+ if (txt)
+ html_ntxt(txt, strlen(txt));
}
-void html_ntxt(int len, const char *txt)
+ssize_t html_ntxt(const char *txt, size_t len)
{
const char *t = txt;
- while (t && *t && len--) {
+ ssize_t slen;
+
+ if (len > SSIZE_MAX)
+ return -1;
+
+ slen = (ssize_t) len;
+ while (t && *t && slen--) {
int c = *t;
if (c == '<' || c == '>' || c == '&') {
html_raw(txt, t - txt);
}
if (t != txt)
html_raw(txt, t - txt);
- if (len < 0)
- html("...");
+ return slen;
}
void html_attrf(const char *fmt, ...)