mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
|
|
* 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Continue reading from file until the terminating string is encountered.
|
|
* Return data as string.
|
|
* e.g. fgets_str(file, "\n"); will read till end of file
|
|
*/
|
|
|
|
char *fgets_str(FILE *file, const char *terminating_string)
|
|
{
|
|
char *linebuf = NULL;
|
|
const int term_length = strlen(terminating_string);
|
|
int end_string_offset;
|
|
int linebufsz = 0;
|
|
int idx = 0;
|
|
int ch;
|
|
|
|
while (1) {
|
|
ch = fgetc(file);
|
|
if (ch == EOF) {
|
|
break;
|
|
}
|
|
|
|
/* grow the line buffer as necessary */
|
|
while (idx > linebufsz - 2) {
|
|
linebuf = realloc(linebuf, linebufsz += 1000); /* GROWBY */
|
|
}
|
|
|
|
linebuf[idx] = ch;
|
|
idx++;
|
|
|
|
/* Check for terminating string */
|
|
end_string_offset = idx - term_length;
|
|
if ((end_string_offset > 0) && (memcmp(&linebuf[end_string_offset], terminating_string, term_length) == 0)) {
|
|
idx -= term_length;
|
|
break;
|
|
}
|
|
}
|
|
if (idx == 0) {
|
|
return NULL;
|
|
}
|
|
linebuf[idx] = '\0';
|
|
return(linebuf);
|
|
}
|
|
|