diff options
Diffstat (limited to 'src/libhttpd/httpunesc.c')
-rw-r--r-- | src/libhttpd/httpunesc.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/libhttpd/httpunesc.c b/src/libhttpd/httpunesc.c new file mode 100644 index 00000000..85a8df63 --- /dev/null +++ b/src/libhttpd/httpunesc.c @@ -0,0 +1,49 @@ +#include <u.h> +#include <libc.h> +#include <bin.h> +#include <httpd.h> + +/* + * go from http with latin1 escapes to utf, + * we assume that anything >= Runeself is already in utf + */ +char * +httpunesc(HConnect *cc, char *s) +{ + char *t, *v; + int c; + Htmlesc *e; + + v = halloc(cc, UTFmax*strlen(s) + 1); + for(t = v; c = *s;){ + if(c == '&'){ + if(s[1] == '#' && s[2] && s[3] && s[4] && s[5] == ';'){ + c = atoi(s+2); + if(c < Runeself){ + *t++ = c; + s += 6; + continue; + } + if(c < 256 && c >= 161){ + e = &htmlesc[c-161]; + t += runetochar(t, &e->value); + s += 6; + continue; + } + } else { + for(e = htmlesc; e->name != nil; e++) + if(strncmp(e->name, s, strlen(e->name)) == 0) + break; + if(e->name != nil){ + t += runetochar(t, &e->value); + s += strlen(e->name); + continue; + } + } + } + *t++ = c; + s++; + } + *t = 0; + return v; +} |