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544 lines
10 KiB
C
544 lines
10 KiB
C
/* util.c
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*
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* This code module originates from NCSA
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* See: http://hoohoo.ncsa.uiuc.edu/cgi/
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* and: ftp://ftp.ncsa.uiuc.edu/Web/httpd/Unix/ncsa_httpd/cgi/cgi-src/
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*
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* Most of the above listed programs were combined into a single
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* file (this one) - everything here is public domain and free for
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* use in any form..
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*
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* Corrections made for SGI systems (Irix) and
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* time/date functions added - R. Scott Guthrie
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/time.h>
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#include <ac/string.h>
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#include <ac/ctype.h>
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#include <ac/unistd.h>
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#include "process_form.h"
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/*--------------*/
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/* strcompare */
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/*--------------*/
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/* This fixes the SGI strcmp function which aborts when passed
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* a NULL in place of a NULL TERMINATED STRING.
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* (The code that depended on it was ported from SUN which considered
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* a NULL to be a NULL terminated string. The standard says strcmp
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* action is undefined when passed a NULL. SGI abends.)
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*/
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int strcompare(char* a, char* b)
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{
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if(a && b)
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return(strcmp(a, b)); /* neither char* is NULL */
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return(1); /* different if either (or both) char* are NULL */
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}
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/*------------*/
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/* getvalue */
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/*------------*/
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/* put a pointer to the value in 'value' for the key specified.
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*/
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int getvalue(entry* list, char* key, char** value)
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{
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int index = 0;
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*value = NULL; /* initialize value to NULL */
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while(list[index].name)
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{
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if(strcmp(list[index].name, key) == 0)
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{
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*value = list[index].val;
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return(1); /* success */
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}
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index++;
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}
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return(0); /* no key value found in list */
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}
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/*------------------*/
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/* append_to_list */
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/*------------------*/
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/* Append name/value pair to end of list */
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int append_to_list(entry* list, char* key, char* value)
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{
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int index = 0;
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char* newname;
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char* newvalue;
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/* go to end of list */
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while(list[index].name)
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index++;
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if(index > MAX_ENTRIES)
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return(0); /* out of room */
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newname = (char *) malloc(sizeof(char) * (strlen(key) + 1));
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strcpy(newname, key);
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list[index].name = newname;
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newvalue = (char *) malloc(sizeof(char) * (strlen(value) + 1));
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strcpy(newvalue, value);
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list[index].val = newvalue;
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/* put new nulls at end. */
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index++;
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list[index].name = NULL;
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list[index].val = NULL;
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return(1); /* success */
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}
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/*----------------------*/
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/* remove_table_entry */
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/*----------------------*/
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/* replaces table entry 'name' name field with '~' */
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int remove_table_entry(entry* list, char* name)
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{
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int index = 0;
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/* search table for matching name entry */
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while(1) /* FOREVER - breaks out with return */
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{
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if(list[index].name == NULL)
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return(0); /* not in list */
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if(strcmp(list[index].name, name) == 0)
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{
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/* found match. remove name */
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free(list[index].name);
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/* allocate space for deleted name */
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if((list[index].name = (char*)malloc(2 * sizeof(char))) == NULL)
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return(0); /* malloc error */
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else
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strcpy(list[index].name, "~"); /* DELETE INDICATOR */
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return(1); /* replacement successful */
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}
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index++; /* try next name */
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}
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return(0); /* cannot get here */
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} /* remove_table_entry */
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/*------------*/
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/* makeword */
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/*------------*/
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char* makeword(char *line, char stop)
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{
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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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/*-------------*/
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/* fmakeword */
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/*-------------*/
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char* fmakeword(FILE *f, char stop, int *cl)
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{
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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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{
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word[ll] = (char)fgetc(f);
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if(ll==wsize)
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{
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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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{
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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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return(NULL);
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}
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/*-------*/
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/* x2c */
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/*-------*/
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char x2c(char *what)
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{
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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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/*----------------*/
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/* unescape_url */
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/*----------------*/
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void unescape_url(char *url)
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{
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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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{
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if((url[x] = url[y]) == '%')
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{
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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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/*---------------*/
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/* plustospace */
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/*---------------*/
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void plustospace(char *str)
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{
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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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/*-------------------------*/
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/* remove_leading_blanks */
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/*-------------------------*/
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void remove_leading_blanks(char* str)
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{
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int i;
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while(str[0] == ' ')
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{
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i = 1;
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do
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{
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str[i-1] = str[i];
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} while(str[i++]);
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}
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} /* end 'remove_leading_blanks()' */
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/*-------------------------*/
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/* remove_trailing_blanks */
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/*-------------------------*/
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void remove_trailing_blanks(char* str)
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{
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while(str[strlen(str) - 1] == ' ')
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str[strlen(str) - 1] = '\0';
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} /* end 'remove_trailing_blanks()' */
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/*-----------------*/
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/* pad_with_char */
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/*-----------------*/
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void pad_with_char(char* buffer, int length, char padchar)
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{
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/* if the 'buffer' is >= then 'length', return.
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* Pad the 'buffer' with 'padchar' until = 'length'
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*/
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int pos;
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while((pos = strlen(buffer)) < length)
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{
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buffer[pos] = padchar;
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buffer[pos+1] = '\0';
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}
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} /* end pad_with_char */
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/*---------------------*/
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/* lower_case_string */
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/*---------------------*/
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char* lower_case_string(char* inputbuf)
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{
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int pos = 0;
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while(inputbuf[pos])
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{
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inputbuf[pos] = (char)tolower((unsigned char) inputbuf[pos]);
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pos++;
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}
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return(inputbuf);
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} /* lower_case_string */
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/*---------------------*/
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/* upper_case_string */
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/*---------------------*/
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char* upper_case_string(char* inputbuf)
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{
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int pos = 0;
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while(inputbuf[pos])
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{
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inputbuf[pos] = (char)toupper((unsigned char) inputbuf[pos]);
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pos++;
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}
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return(inputbuf);
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} /* upper_case_string */
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/*------------*/
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/* strip_CR */
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/*------------*/
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void strip_CR(char* buffer)
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{
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char* bufferptr;
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char* newptr;
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bufferptr = buffer;
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newptr = buffer;
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while(*bufferptr)
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{
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if(*bufferptr != '\r')
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{
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*newptr = *bufferptr;
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newptr++;
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}
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bufferptr++;
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}
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*newptr = '\0';
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return;
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}
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/*------------------*/
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/* show_form_data */
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/*------------------*/
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/* THIS ROUTINE IS USED FOR DEBUGGING and will not be called in production */
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void show_form_data(entry* entries)
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{
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int x = 0;
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printf("<HR><H1>Form Data</H1>");
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printf("The following Name Value pairs currently exist:<p>%c",10);
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printf("<ul><pre>%c",10);
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while(entries[x].name)
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{
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printf("<li> <code>%s = [%s]</code>%c",entries[x].name,
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entries[x].val,10);
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x++;
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}
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printf("</pre></ul>%c",10);
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}
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/*------------------------*/
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/* maint_show_form_data */
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/*------------------------*/
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/* THIS ROUTINE IS USED FOR DEBUGGING and will not be called in production */
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void maint_show_form_data(entry* entries)
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{
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int x = 0;
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printf("Content-type: text/html\n\n");
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printf("<HR><H1>Form Data</H1>");
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printf("The following Name Value pairs currently exist:<p>%c",10);
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printf("<ul><pre>%c",10);
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while(entries[x].name)
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{
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printf("<li> <code>%s = [%s]</code>%c",entries[x].name,
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entries[x].val,10);
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x++;
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}
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printf("</pre></ul>%c",10);
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}
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/*---------------------*/
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/* display_html_text */
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/*---------------------*/
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/* display the text found in the indicated file */
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void display_html_text(char* filename)
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{
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FILE *fp;
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char buffer[256];
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if((fp = fopen(filename, "r")) == NULL)
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{
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printf("%s%s%s",
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"<p><b>(OOPS... We are unable to open file ",
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filename,
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" for reading)</b><p>\n");
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}
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while(fgets(buffer, 256, fp) != NULL)
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{
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if(buffer[strlen(buffer) - 1] == '\n')
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buffer[strlen(buffer) - 1] = '\0';
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printf("%s\n", buffer);
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}
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fclose(fp);
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return ;
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} /* display_html_text */
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/*-----------------*/
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/* unformat_cost */
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/*-----------------*/
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/* this routine converts a string value and
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* converts it to an integer.
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*/
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long unformat_cost(char* cost)
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{
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char buf[100];
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int buf_siz = 0;
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char* spos = cost;
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char* dpos = buf;
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/* Make sure a string was passed */
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if(!spos)
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return(0L);
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/* while in the string */
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while(*spos)
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{
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if(*spos == '.')
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break;
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if(isdigit((unsigned char) *spos))
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*dpos++ = *spos;
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spos++;
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if(buf_siz++ == 98) /* make sure we don't overrun buf */
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break;
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}
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*spos = '\n';
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return(atol(buf));
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}
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/*---------------*/
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/* digits_only */
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/*---------------*/
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int digits_only(char* str)
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{
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char* pos;
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pos = str;
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while(*pos)
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{
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if(!isdigit((unsigned char) *pos))
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return(0); /* non-digit found */
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pos++;
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}
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return(1);
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}
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/*-------------*/
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/* util_year */
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/*-------------*/
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/* return current year -> 0 thru 99 */
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int util_year()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_year;
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return(ret_val);
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}
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/*--------------*/
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/* util_month */
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/*--------------*/
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/* return Month of current year -> 1 thru 12 */
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int util_month()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_mon;
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return(ret_val + 1);
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}
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/*------------*/
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/* util_day */
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/*------------*/
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/* return day of Month -> 1 thru 31 */
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int util_day()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_mday;
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return(ret_val);
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}
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/*-------------*/
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/* util_hour */
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/*-------------*/
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/* return hour of day -> 0 thru 23 */
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int util_hour()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_hour;
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return(ret_val);
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}
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/*---------------*/
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/* util_minute */
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/*---------------*/
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/* return minute of day -> 0 thru 59 */
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int util_minute()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_min;
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return(ret_val);
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}
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/*---------------*/
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/* util_second */
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/*---------------*/
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/* return second of day -> 0 thru 59 */
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int util_second()
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{
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time_t t;
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struct tm *tptr;
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int ret_val;
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time(&t);
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tptr = localtime(&t);
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ret_val = tptr->tm_sec;
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return(ret_val);
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}
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/* end file 'util.c' */
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