files.c

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/*
 * Copyright (C) 2000, Matias Atria
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include <config.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>

#include "common.h"

char    *dgets(Dstring *dstr, FILE *in)
{
    char    buffer[256];
    
    dstr->length = 0;
    if(feof(in))
        return NULL;
    while(fgets(buffer, 256, in) != NULL) {
        int len = strlen(buffer);
        
        if(buffer[len-1] == '\n') {
            dstring_append(dstr, buffer, len - 1);
            break;
        }
        dstring_append(dstr, buffer, len);
    }
    if(dstr->data)
        dstr->data[dstr->length] = 0;
    return dstr->data;
}

/* some simple helper functions to manipulate file names */

const char *file_basename(const char *filename)
{
    const char *ptr = strrchr(filename, '/');
    
    return (ptr ? ptr + 1 : filename);
}

const char *file_extension(const char *filename)
{
    const char *ptr = strchr(file_basename(filename), '.');
    
    return (ptr ? ptr + 1 : NULL);
}

int file_readable(const char *filename)
{
    int status = (access(filename, R_OK) == 0);
    
    DEBUG((DBG_FILES, "file_redable(%s) -> %s\n",
        filename, status ? "Yes" : "No"));
    return status;
}

int file_exists(const char *filename)
{
    int status = (access(filename, F_OK) == 0);
    
    DEBUG((DBG_FILES, "file_exists(%s) -> %s\n",
        filename, status ? "Yes" : "No"));
    return status;
}