split.c #1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char *skip_spc (char *s);
char *skip_nspc (char *s, char **dp);
char *copy_nspc (char *s, char **dp);

char *handle_options (s, port, xfile, ifile, ofile, client, dir, user, appendp)
char *s;
char *port, *xfile, *client, *dir, *user, *ofile, *ifile;
int *appendp;
{
    int ch;
    char *s1, *d;
    
    *port = *xfile = *ifile = *client = *dir = *user = *ofile = 0;
    *appendp = 0;
    s = skip_spc (s);
    while (*s == '-') {
        s1 = s;
        ++s;
        ch = *s++;
        s = skip_spc (s);
        switch (ch) {
        case 'p':
            d = port;
            s = copy_nspc (s, &d);
            break;
        case 'x':
            d = xfile;
            s = copy_nspc (s, &d);
            break;
	case 'i':
            d = ifile;
            s = copy_nspc (s, &d);
            break;
        case 'c':
            d = client;
            s = copy_nspc (s, &d);
            break;
        case 'd':
            d = dir;
            s = copy_nspc (s, &d);
            break;
        case 'u':
            d = user;
            s = copy_nspc (s, &d);
            break;
        case 'o':
            d = ofile;
            s = copy_nspc (s, &d);
            break;
	case 's':
	  s = copy_nspc (s, &d);
	  break;
        case 'a':
            d = ofile;
            s = copy_nspc (s, &d);
            *appendp = 1;
            break;
        default:
            return (s1);
        }
        s = skip_spc (s);
    }
    return (s);
}

char *skip_spc (s)
char *s;
{
    for (; ((*s == ' ') || (*s == '\t') || (*s == '\n')); ++s);
    return (s);
}

char *copy_nspc (s, dp)
char *s, **dp;
{
    char *d;

    d = *dp;
    for (; ((*s != ' ') && (*s != '\t') && (*s != '\n') && (*s != 0));
        ++s) *d++ = *s;
    *d = 0;
    *dp = d;
    return (s);
}

int split_quote_args (s, argv, dp)
char *s;
char **argv;
char **dp;
{
    int i, ch;
    char *d, *s1, *d1;

    d = *dp;
    for (i = 0;; ++i) {
        for (; ((*s == ' ') || (*s == '\t') || (*s == '\n')); ++s);
        if (*s == 0) {
            break;
        }
        *argv++ = d;
        for (; ((*s != ' ') && (*s != '\t') && (*s != '\n') &&
                (*s != 0)); ++s) {
            if ((*s == '\'') || (*s == '`') || (*s == '\"')) {
                d1 = d;
                s1 = s;
                ch = *s;
                ++s;
                for (; ((*s != ch) && (*s != 0)); ++s) *d++ = *s;
                if (*s == 0) {      
                    /* no matching quote -- do not treat as quote */
                    d = d1;
                    s = s1;
                    *d++ = *s;
                }
            } else {
                *d++ = *s;
            }
        }
        *d++ = 0;
    }
    *argv = 0;
    *dp = d;
    return (i);
}