205 lines
6.7 KiB
C
205 lines
6.7 KiB
C
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/****************************************************************************
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* NCSA Mosaic for the X Window System *
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* Software Development Group *
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* National Center for Supercomputing Applications *
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* University of Illinois at Urbana-Champaign *
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* 605 E. Springfield, Champaign IL 61820 *
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* mosaic@ncsa.uiuc.edu *
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* *
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* Copyright (C) 1993, Board of Trustees of the University of Illinois *
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* *
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* NCSA Mosaic software, both binary and source (hereafter, Software) is *
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* copyrighted by The Board of Trustees of the University of Illinois *
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* (UI), and ownership remains with the UI. *
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* *
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* The UI grants you (hereafter, Licensee) a license to use the Software *
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* for academic, research and internal business purposes only, without a *
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* fee. Licensee may distribute the binary and source code (if released) *
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* to third parties provided that the copyright notice and this statement *
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* appears on all copies and that no charge is associated with such *
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* copies. *
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* *
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* Licensee may make derivative works. However, if Licensee distributes *
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* any derivative work based on or derived from the Software, then *
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* Licensee will (1) notify NCSA regarding its distribution of the *
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* derivative work, and (2) clearly notify users that such derivative *
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* work is a modified version and not the original NCSA Mosaic *
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* distributed by the UI. *
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* *
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* Any Licensee wishing to make commercial use of the Software should *
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* contact the UI, c/o NCSA, to negotiate an appropriate license for such *
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* commercial use. Commercial use includes (1) integration of all or *
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* part of the source code into a product for sale or license by or on *
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* behalf of Licensee to third parties, or (2) distribution of the binary *
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* code or source code to third parties that need it to utilize a *
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* commercial product sold or licensed by or on behalf of Licensee. *
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* *
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* UI MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS SOFTWARE FOR *
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* ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED *
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* WARRANTY. THE UI SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY THE *
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* USERS OF THIS SOFTWARE. *
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* *
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* By using or copying this Software, Licensee agrees to abide by the *
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* copyright law and all other applicable laws of the U.S. including, but *
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* not limited to, export control laws, and the terms of this license. *
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* UI shall have the right to terminate this license immediately by *
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* written notice upon Licensee's breach of, or non-compliance with, any *
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* of its terms. Licensee may be held legally responsible for any *
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* copyright infringement that is caused or encouraged by Licensee's *
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* failure to abide by the terms of this license. *
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* *
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* Comments and questions are welcome and can be sent to *
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* mosaic-x@ncsa.uiuc.edu. *
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****************************************************************************/
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/* Note that this code is taken almost straight from the httpd cgi-src
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directory.*/
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#include "../config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifndef LF
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#define LF 10
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#endif
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#ifndef CR
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#define CR 13
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#endif
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void getword(char *word, char *line, char stop) {
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int x = 0,y;
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for(x=0;((line[x]) && (line[x] != stop));x++)
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word[x] = line[x];
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word[x] = '\0';
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if(line[x]) ++x;
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y=0;
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while(line[y++] = line[x++]);
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}
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char *makeword(char *line, char stop) {
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int x = 0,y;
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char *word = (char *) malloc(sizeof(char) * (strlen(line) + 1));
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for(x=0;((line[x]) && (line[x] != stop));x++)
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word[x] = line[x];
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word[x] = '\0';
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if(line[x]) ++x;
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y=0;
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while(line[y++] = line[x++]);
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return word;
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}
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char *fmakeword(FILE *f, char stop, int *cl) {
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int wsize;
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char *word;
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int ll;
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wsize = 102400;
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ll=0;
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word = (char *) malloc(sizeof(char) * (wsize + 1));
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while(1) {
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word[ll] = (char)fgetc(f);
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if(ll==wsize) {
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word[ll+1] = '\0';
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wsize+=102400;
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word = (char *)realloc(word,sizeof(char)*(wsize+1));
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}
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--(*cl);
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if((word[ll] == stop) || (feof(f)) || (!(*cl))) {
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if(word[ll] != stop) ll++;
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word[ll] = '\0';
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return word;
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}
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++ll;
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}
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}
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char x2c(char *what) {
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register char digit;
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digit = (what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
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digit *= 16;
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digit += (what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
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return(digit);
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}
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void unescape_url(char *url) {
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register int x,y;
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for(x=0,y=0;url[y];++x,++y) {
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if((url[x] = url[y]) == '%') {
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url[x] = x2c(&url[y+1]);
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y+=2;
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}
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}
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url[x] = '\0';
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}
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void plustospace(char *str) {
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register int x;
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for(x=0;str[x];x++) if(str[x] == '+') str[x] = ' ';
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}
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int rind(char *s, char c) {
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register int x;
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for(x=strlen(s) - 1;x != -1; x--)
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if(s[x] == c) return x;
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return -1;
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}
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void send_fd(FILE *f, FILE *fd)
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{
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int num_chars=0;
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char c;
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while (1) {
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c = fgetc(f);
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if(feof(f))
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return;
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fputc(c,fd);
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}
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}
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int ind(char *s, char c) {
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register int x;
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for(x=0;s[x];x++)
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if(s[x] == c) return x;
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return -1;
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}
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void escape_shell_cmd(char *cmd) {
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register int x,y,l;
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l=strlen(cmd);
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for(x=0;cmd[x];x++) {
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if(ind("&;`'\"|*?~<>^()[]{}$\\",cmd[x]) != -1){
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for(y=l+1;y>x;y--)
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cmd[y] = cmd[y-1];
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l++; /* length has been increased */
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cmd[x] = '\\';
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x++; /* skip the character */
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}
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}
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}
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