| -rw-r--r-- | html.c | 64 |
1 files changed, 64 insertions, 0 deletions
@@ -184,4 +184,68 @@ int html_include(const char *filename) write(htmlfd, buf, len); fclose(f); return 0; } + +int hextoint(char c) +{ + if (c >= 'a' && c <= 'f') + return 10 + c - 'a'; + else if (c >= 'A' && c <= 'F') + return 10 + c - 'A'; + else if (c >= '0' && c <= '9') + return c - '0'; + else + return -1; +} + +char *convert_query_hexchar(char *txt) +{ + int d1, d2; + if (strlen(txt) < 3) { + *txt = '\0'; + return txt-1; + } + d1 = hextoint(*(txt+1)); + d2 = hextoint(*(txt+2)); + if (d1<0 || d2<0) { + strcpy(txt, txt+3); + return txt-1; + } else { + *txt = d1 * 16 + d2; + strcpy(txt+1, txt+3); + return txt; + } +} + +int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value)) +{ + char *t, *value = NULL, c; + + if (!txt) + return 0; + + t = txt = strdup(txt); + if (t == NULL) { + printf("Out of memory\n"); + exit(1); + } + while((c=*t) != '\0') { + if (c=='=') { + *t = '\0'; + value = t+1; + } else if (c=='+') { + *t = ' '; + } else if (c=='%') { + t = convert_query_hexchar(t); + } else if (c=='&') { + *t = '\0'; + (*fn)(txt, value); + txt = t+1; + value = NULL; + } + t++; + } + if (t!=txt) + (*fn)(txt, value); + return 0; +} |