support.c

Go to the documentation of this file.

// Server-side utility functions
 
#include "sysdep.h"
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <libcitadel.h>
 
#include "citadel.h"
#include "support.h"
 
// strproc()  -  make a string 'nice'
void strproc(char *string) {
    int a, b;
 
    if (string == NULL) return;
    if (IsEmptyStr(string)) return;
 
    // Convert non-printable characters to blanks
    for (a=0; !IsEmptyStr(&string[a]); ++a) {
        if (string[a]<32) string[a]=32;
        if (string[a]>126) string[a]=32;
    }
 
    // a is now the length of our string.
    // Remove leading and trailing blanks
    while( (string[a-1]<33) && (!IsEmptyStr(string)) )
        string[--a]=0;
    b = 0;
    while( (string[b]<33) && (!IsEmptyStr(&string[b])) )
        b++;
    if (b > 0)
        memmove(string,&string[b], a - b + 1);
 
    // Remove double blanks
    for (a=0; !IsEmptyStr(&string[a]); ++a) {
        if ((string[a]==32)&&(string[a+1]==32)) {
            strcpy(&string[a],&string[a+1]);
            a=0;
        }
    }
 
    // remove characters which would interfere with the network
    for (a=0; !IsEmptyStr(&string[a]); ++a) {
        while (string[a]=='!') strcpy(&string[a],&string[a+1]);
        while (string[a]=='@') strcpy(&string[a],&string[a+1]);
        while (string[a]=='_') strcpy(&string[a],&string[a+1]);
        while (string[a]==',') strcpy(&string[a],&string[a+1]);
        while (string[a]=='%') strcpy(&string[a],&string[a+1]);
        while (string[a]=='|') strcpy(&string[a],&string[a+1]);
    }
 
}
 
 
// get a line of text from a file
// ignores lines starting with #
int getstring(FILE *fp, char *string) {
    int a,c;
    do {
        strcpy(string,"");
        a=0;
        do {
            c=getc(fp);
            if (c<0) {
                string[a]=0;
                return(-1);
                }
            string[a++]=c;
            } while(c!=10);
            string[a-1]=0;
        } while(string[0]=='#');
    return(strlen(string));
}