File: getLine.c

package info (click to toggle)
wmweather+ 2.15-1.1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 1,100 kB
  • ctags: 579
  • sloc: ansic: 5,822; sh: 1,294; makefile: 42
file content (67 lines) | stat: -rw-r--r-- 1,717 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
#include "config.h"

/*  Copyright (C) 2000  Brad Jorsch <anomie@users.sourceforge.net>

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

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

/* inspired by read_line from Eric S. Raymond's fetchmail program, by
 * way of Aaron Sethman's odsclient.  */
int getLine(char **s, FILE *fd){
    int len=8196;
    int toread=len;
    int l=0;
    char *ptr, *p, *q;

    *s=NULL;
    if(feof(fd)) return -1;

    q=ptr=malloc(len);
    if(ptr==NULL) return -1;
    *q=0;
    p=q=ptr;
    while(fgets(p, toread, fd)!=NULL){
	l=strlen(ptr);
        q=strchr(p, '\n');
	if(q!=NULL){ l=q-ptr+1; break; }
        len*=2;
	toread=len-l;
	p=realloc(ptr, len);
	if(p==NULL){
	    free(ptr);
	    return -1;
	}
	ptr=p;
	q=p=ptr+l;
    }
    while(q>ptr && (*q=='\0' || isspace(*q))){
        *q='\0';
	l--;
	q--;
    }
    for(p=ptr; isspace(*p); p++, l--);
    if((*s=malloc(l+1))==NULL){
        free(ptr);
	return -1;
    }
    memcpy(*s, p, l+1);
    free(ptr);
    return l;
}