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/*
* utils.c
*
* Copyright © 2013-2018 Thomas White <taw@bitwiz.org.uk>
*
* This file is part of Colloquium.
*
* Colloquium 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
void chomp(char *s)
{
size_t i;
if ( !s ) return;
for ( i=0; i<strlen(s); i++ ) {
if ( (s[i] == '\n') || (s[i] == '\r') ) {
s[i] = '\0';
return;
}
}
}
int safe_strcmp(const char *a, const char *b)
{
if ( a == NULL ) return 1;
if ( b == NULL ) return 1;
return strcmp(a, b);
}
static char *fgets_long(FILE *fh, size_t *lp)
{
char *line;
size_t la;
size_t l = 0;
la = 1024;
line = malloc(la);
if ( line == NULL ) return NULL;
do {
int r;
r = fgetc(fh);
if ( r == EOF ) {
if ( l == 0 ) {
free(line);
*lp = 0;
return NULL;
} else {
line[l++] = '\0';
*lp = l;
return line;
}
}
line[l++] = r;
if ( r == '\n' ) {
line[l++] = '\0';
*lp = l;
return line;
}
if ( l == la ) {
char *ln;
la += 1024;
ln = realloc(line, la);
if ( ln == NULL ) {
free(line);
*lp = 0;
return NULL;
}
line = ln;
}
} while ( 1 );
}
char *load_everything(const char *filename)
{
FILE *fh;
size_t el = 1;
char *everything = strdup("");
fh = fopen(filename, "r");
if ( fh == NULL ) return NULL;
while ( !feof(fh) ) {
size_t len = 0;
char *line = fgets_long(fh, &len);
if ( line != NULL ) {
everything = realloc(everything, el+len);
if ( everything == NULL ) {
fprintf(stderr, "Failed to allocate memory\n");
return NULL;
}
el += len;
strcat(everything, line);
}
}
fclose(fh);
return everything;
}
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