%s

X-Git-Url: https://the.earth.li/gitweb/?p=onak.git;a=blobdiff_plain;f=getcgi.c;fp=getcgi.c;h=0000000000000000000000000000000000000000;hp=7c0656020690be5e14dddb57fcf5fb8a98f59f52;hb=f6d38365b7e7e1e88ba02136ffe6f0fb08903ef0;hpb=b767e3e90280a1222fc4404cbd4c832342c9382d diff --git a/getcgi.c b/getcgi.c deleted file mode 100644 index 7c06560..0000000 --- a/getcgi.c +++ /dev/null @@ -1,272 +0,0 @@ -/* - * getcgivars.c - routine to read CGI input variables into an array. - * - * Copyright 2002 Jonathan McDowell - * - * The x2c() and unescape_url() routines were lifted directly - * from NCSA's sample program util.c, packaged with their HTTPD. - * - * This program is free software: you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see . - */ - -#include -#include -#include -#include - -#include "getcgi.h" - -/** - * txt2html - Takes a string and converts it to HTML. - * @string: The string to HTMLize. - * - * Takes a string and escapes any HTML entities. - */ -char *txt2html(const char *string) -{ - static char buf[1024]; - char *ptr = NULL; - char *nextptr = NULL; - - memset(buf, 0, 1024); - - ptr = strchr(string, '<'); - if (ptr != NULL) { - nextptr = ptr + 1; - *ptr = 0; - strncpy(buf, string, 1023); - strncat(buf, "<", 1023 - strlen(buf)); - string = nextptr; - } - - ptr = strchr(string, '>'); - if (ptr != NULL) { - nextptr = ptr + 1; - *ptr = 0; - strncat(buf, string, 1023 - strlen(buf)); - strncat(buf, ">", 1023 - strlen(buf)); - string = nextptr; - } - - /* - * TODO: We need to while() this really as each entity may appear more - * than once. We need to start with & and ; as we replace with those - * throughout. Fuck it for the moment though; it's Easter and < & > are - * the most common and tend to only appear once. - */ - - strncat(buf, string, 1023 - strlen(buf)); - - return buf; -} - -/* - * start_html - Start HTML output. - * @title: The title for the HTML. - * - * Takes a title string and starts HTML output, including the - * Content-Type header all the way up to . - */ -void start_html(const char *title) -{ - puts("Content-Type: text/html; charset=UTF-8\n"); - puts(""); - puts(""); - puts(""); - printf("%s\n", title); - puts(""); - puts(""); - - return; -} - -/* - * end_html - End HTML output. - * - * Ends HTML output - closes the BODY and HTML tags. - */ -void end_html(void) -{ - puts(""); - puts(""); - - return; -} - - -/* Convert a two-char hex string into the char it represents */ -char x2c(const char *what) -{ - register char digit; - - digit = (what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : - (what[0] - '0')); - digit *= 16; - digit += (what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : - (what[1] - '0')); - - return(digit); -} - -/* Reduce any %xx escape sequences to the characters they represent */ -void unescape_url(char *url) -{ - register int i,j; - - for(i=0,j=0; url[j]; ++i,++j) { - if((url[i] = url[j]) == '%') { - url[i]=x2c(&url[j+1]); - j+=2; - } - } - - url[i] = '\0'; -} - - -/* Read the CGI input and place all name/val pairs into list. */ -/* Returns list containing name1, value1, name2, value2, ... , NULL */ -char **getcgivars(int argc, char *argv[]) -{ - int i; - char *request_method, *env; - int content_length, paircount; - char *cgiinput = NULL; - char **cgivars = NULL; - char **pairlist = NULL; - char *nvpair,*eqpos; - - /* Depending on the request method, read all CGI input into cgiinput */ - /* (really should produce HTML error messages, instead of exit()ing) */ - - request_method = getenv("REQUEST_METHOD"); - - if (request_method == NULL) { - if (argc > 1) { - cgiinput = strdup(argv[1]); - } else { - return NULL; - } - } else if (strlen(request_method)==0) { - return NULL; - } else if (!strcmp(request_method, "GET") || - !strcmp(request_method, "HEAD")) { - env = getenv("QUERY_STRING"); - if (env != NULL) { - cgiinput = strdup(env); - } - } else if (!strcmp(request_method, "POST")) { - env = getenv("CONTENT_TYPE"); - if ((env != NULL) && strcasecmp(env, - "application/x-www-form-urlencoded")) { - printf("getcgivars(): Unsupported Content-Type.\n"); - exit(1); - } - - env = getenv("CONTENT_LENGTH"); - if ((env == NULL) || !(content_length = atoi(env))) { - printf("getcgivars(): No Content-Length was sent with" - " the POST request.\n"); - exit(1); - } - - if (!(cgiinput = (char *) malloc(content_length+1))) { - printf("getcgivars(): Could not malloc for " - "cgiinput.\n"); - exit(1); - } - - if (!fread(cgiinput, content_length, 1, stdin)) { - printf("Couldn't read CGI input from STDIN.\n"); - exit(1); - } - - cgiinput[content_length]='\0'; - - } else { - printf("getcgivars(): unsupported REQUEST_METHOD\n"); - exit(1); - } - - /* If we didn't get any cgiinput info, nothing to return */ - if (cgiinput == NULL) { - return NULL; - } - - /* Change all plusses back to spaces */ - - for(i=0; cgiinput[i]; i++) if (cgiinput[i]=='+') cgiinput[i] = ' '; - - /* First, split on "&" to extract the name-value pairs into pairlist */ - pairlist= malloc(256*sizeof(char *)); - paircount=0; - nvpair=strtok(cgiinput, "&"); - while (nvpair) { - pairlist[paircount++]= strdup(nvpair) ; - if (!(paircount%256)) { - pairlist= realloc(pairlist, - (paircount+256)*sizeof(char *)); - } - nvpair=strtok(NULL, "&") ; - } - - pairlist[paircount]=0; /* terminate the list with NULL */ - - /* Then, from the list of pairs, extract the names and values */ - - cgivars= malloc((paircount*2+1)*sizeof(char *)); - - for (i=0; i