mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-27 11:55:06 +00:00
89 lines
1.5 KiB
C
89 lines
1.5 KiB
C
/*
|
|
* addstr.c
|
|
*
|
|
* By Ross Ridge
|
|
* Public Domain
|
|
* 92/02/01 07:34:01
|
|
*
|
|
*/
|
|
|
|
#include "defs.h"
|
|
#include <term.h>
|
|
|
|
#include <ctype.h>
|
|
|
|
#ifdef USE_SCCS_IDS
|
|
static char const SCCSid[] = "@(#) mytinfo addstr.c 3.2 92/02/01 public domain, By Ross Ridge";
|
|
#endif
|
|
/*
|
|
* I think this routine could be improved, as it is now it searches a
|
|
* linked list of strbufs for one that has enough room left for the
|
|
* string. The only thing else I can think of doing would be to
|
|
* expand a buffer by realloc and then fix the string pointers if it
|
|
* moves.
|
|
*/
|
|
|
|
static struct strbuf *strbuf = NULL;
|
|
|
|
struct strbuf *
|
|
_endstr() {
|
|
register struct strbuf *p;
|
|
|
|
p = strbuf;
|
|
strbuf = NULL;
|
|
return p;
|
|
}
|
|
|
|
char *
|
|
_addstr(s)
|
|
register char *s; {
|
|
register struct strbuf *p;
|
|
register int l;
|
|
|
|
if (s == NULL) {
|
|
strbuf = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
if (strbuf == NULL) {
|
|
strbuf = (struct strbuf *) malloc(sizeof(struct strbuf));
|
|
if (strbuf == NULL)
|
|
return NULL;
|
|
strbuf->len = 0;
|
|
strbuf->next = NULL;
|
|
}
|
|
l = strlen(s) + 1;
|
|
if (l > MAX_CHUNK)
|
|
return NULL;
|
|
p = strbuf;
|
|
while (l + p->len > MAX_CHUNK) {
|
|
if (p->next == NULL) {
|
|
p->next = (struct strbuf *)
|
|
malloc(sizeof(struct strbuf));
|
|
p = p->next;
|
|
if (p == NULL)
|
|
return NULL;
|
|
p->len = 0;
|
|
p->next = NULL;
|
|
break;
|
|
}
|
|
p = p->next;
|
|
}
|
|
s = strcpy(p->buf + p->len, s);
|
|
p->len += l;
|
|
return s;
|
|
}
|
|
|
|
void
|
|
_del_strs(p)
|
|
TERMINAL *p; {
|
|
struct strbuf *q;
|
|
|
|
q = p->strbuf;
|
|
while(q != NULL) {
|
|
p->strbuf = q->next;
|
|
free((anyptr) q);
|
|
q = p->strbuf;
|
|
}
|
|
}
|