mirror of
https://github.com/asterisk/asterisk.git
synced 2025-10-31 02:37:10 +00:00
merge new_loader_completion branch, including (at least):
- restructured build tree and makefiles to eliminate recursion problems - support for embedded modules - support for static builds - simpler cross-compilation support - simpler module/loader interface (no exported symbols) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@40722 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
875
main/editline/history.c
Normal file
875
main/editline/history.c
Normal file
@@ -0,0 +1,875 @@
|
||||
/* $NetBSD: history.c,v 1.19 2002/03/18 16:00:54 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1992, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* Christos Zoulas of Cornell University.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#if !defined(lint) && !defined(SCCSID)
|
||||
#if 0
|
||||
static char sccsid[] = "@(#)history.c 8.1 (Berkeley) 6/4/93";
|
||||
#else
|
||||
__RCSID("$NetBSD: history.c,v 1.19 2002/03/18 16:00:54 christos Exp $");
|
||||
#endif
|
||||
#endif /* not lint && not SCCSID */
|
||||
|
||||
/*
|
||||
* hist.c: History access functions
|
||||
*/
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
#ifdef HAVE_VIS_H
|
||||
#include <vis.h>
|
||||
#else
|
||||
#include "np/vis.h"
|
||||
#endif
|
||||
#include <sys/stat.h>
|
||||
|
||||
static const char hist_cookie[] = "_HiStOrY_V2_\n";
|
||||
|
||||
#include "histedit.h"
|
||||
|
||||
typedef int (*history_gfun_t)(ptr_t, HistEvent *);
|
||||
typedef int (*history_efun_t)(ptr_t, HistEvent *, const char *);
|
||||
typedef void (*history_vfun_t)(ptr_t, HistEvent *);
|
||||
typedef int (*history_sfun_t)(ptr_t, HistEvent *, const int);
|
||||
|
||||
struct history {
|
||||
ptr_t h_ref; /* Argument for history fcns */
|
||||
int h_ent; /* Last entry point for history */
|
||||
history_gfun_t h_first; /* Get the first element */
|
||||
history_gfun_t h_next; /* Get the next element */
|
||||
history_gfun_t h_last; /* Get the last element */
|
||||
history_gfun_t h_prev; /* Get the previous element */
|
||||
history_gfun_t h_curr; /* Get the current element */
|
||||
history_sfun_t h_set; /* Set the current element */
|
||||
history_vfun_t h_clear; /* Clear the history list */
|
||||
history_efun_t h_enter; /* Add an element */
|
||||
history_efun_t h_add; /* Append to an element */
|
||||
};
|
||||
#define HNEXT(h, ev) (*(h)->h_next)((h)->h_ref, ev)
|
||||
#define HFIRST(h, ev) (*(h)->h_first)((h)->h_ref, ev)
|
||||
#define HPREV(h, ev) (*(h)->h_prev)((h)->h_ref, ev)
|
||||
#define HLAST(h, ev) (*(h)->h_last)((h)->h_ref, ev)
|
||||
#define HCURR(h, ev) (*(h)->h_curr)((h)->h_ref, ev)
|
||||
#define HSET(h, ev, n) (*(h)->h_set)((h)->h_ref, ev, n)
|
||||
#define HCLEAR(h, ev) (*(h)->h_clear)((h)->h_ref, ev)
|
||||
#define HENTER(h, ev, str) (*(h)->h_enter)((h)->h_ref, ev, str)
|
||||
#define HADD(h, ev, str) (*(h)->h_add)((h)->h_ref, ev, str)
|
||||
|
||||
#define h_malloc(a) malloc(a)
|
||||
#define h_realloc(a, b) realloc((a), (b))
|
||||
#define h_free(a) free(a)
|
||||
|
||||
typedef struct {
|
||||
int num;
|
||||
char *str;
|
||||
} HistEventPrivate;
|
||||
|
||||
|
||||
|
||||
private int history_setsize(History *, HistEvent *, int);
|
||||
private int history_getsize(History *, HistEvent *);
|
||||
private int history_set_fun(History *, History *);
|
||||
private int history_load(History *, const char *);
|
||||
private int history_save(History *, const char *);
|
||||
private int history_prev_event(History *, HistEvent *, int);
|
||||
private int history_next_event(History *, HistEvent *, int);
|
||||
private int history_next_string(History *, HistEvent *, const char *);
|
||||
private int history_prev_string(History *, HistEvent *, const char *);
|
||||
|
||||
|
||||
/***********************************************************************/
|
||||
|
||||
/*
|
||||
* Builtin- history implementation
|
||||
*/
|
||||
typedef struct hentry_t {
|
||||
HistEvent ev; /* What we return */
|
||||
struct hentry_t *next; /* Next entry */
|
||||
struct hentry_t *prev; /* Previous entry */
|
||||
} hentry_t;
|
||||
|
||||
typedef struct history_t {
|
||||
hentry_t list; /* Fake list header element */
|
||||
hentry_t *cursor; /* Current element in the list */
|
||||
int max; /* Maximum number of events */
|
||||
int cur; /* Current number of events */
|
||||
int eventid; /* For generation of unique event id */
|
||||
} history_t;
|
||||
|
||||
private int history_def_first(ptr_t, HistEvent *);
|
||||
private int history_def_last(ptr_t, HistEvent *);
|
||||
private int history_def_next(ptr_t, HistEvent *);
|
||||
private int history_def_prev(ptr_t, HistEvent *);
|
||||
private int history_def_curr(ptr_t, HistEvent *);
|
||||
private int history_def_set(ptr_t, HistEvent *, const int n);
|
||||
private int history_def_enter(ptr_t, HistEvent *, const char *);
|
||||
private int history_def_add(ptr_t, HistEvent *, const char *);
|
||||
private void history_def_init(ptr_t *, HistEvent *, int);
|
||||
private void history_def_clear(ptr_t, HistEvent *);
|
||||
private int history_def_insert(history_t *, HistEvent *, const char *);
|
||||
private void history_def_delete(history_t *, HistEvent *, hentry_t *);
|
||||
|
||||
#define history_def_setsize(p, num)(void) (((history_t *) p)->max = (num))
|
||||
#define history_def_getsize(p) (((history_t *) p)->cur)
|
||||
|
||||
#define he_strerror(code) he_errlist[code]
|
||||
#define he_seterrev(evp, code) {\
|
||||
evp->num = code;\
|
||||
evp->str = he_strerror(code);\
|
||||
}
|
||||
|
||||
/* error messages */
|
||||
static const char *const he_errlist[] = {
|
||||
"OK",
|
||||
"unknown error",
|
||||
"malloc() failed",
|
||||
"first event not found",
|
||||
"last event not found",
|
||||
"empty list",
|
||||
"no next event",
|
||||
"no previous event",
|
||||
"current event is invalid",
|
||||
"event not found",
|
||||
"can't read history from file",
|
||||
"can't write history",
|
||||
"required parameter(s) not supplied",
|
||||
"history size negative",
|
||||
"function not allowed with other history-functions-set the default",
|
||||
"bad parameters"
|
||||
};
|
||||
/* error codes */
|
||||
#define _HE_OK 0
|
||||
#define _HE_UNKNOWN 1
|
||||
#define _HE_MALLOC_FAILED 2
|
||||
#define _HE_FIRST_NOTFOUND 3
|
||||
#define _HE_LAST_NOTFOUND 4
|
||||
#define _HE_EMPTY_LIST 5
|
||||
#define _HE_END_REACHED 6
|
||||
#define _HE_START_REACHED 7
|
||||
#define _HE_CURR_INVALID 8
|
||||
#define _HE_NOT_FOUND 9
|
||||
#define _HE_HIST_READ 10
|
||||
#define _HE_HIST_WRITE 11
|
||||
#define _HE_PARAM_MISSING 12
|
||||
#define _HE_SIZE_NEGATIVE 13
|
||||
#define _HE_NOT_ALLOWED 14
|
||||
#define _HE_BAD_PARAM 15
|
||||
|
||||
/* history_def_first():
|
||||
* Default function to return the first event in the history.
|
||||
*/
|
||||
private int
|
||||
history_def_first(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
h->cursor = h->list.next;
|
||||
if (h->cursor != &h->list)
|
||||
*ev = h->cursor->ev;
|
||||
else {
|
||||
he_seterrev(ev, _HE_FIRST_NOTFOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_last():
|
||||
* Default function to return the last event in the history.
|
||||
*/
|
||||
private int
|
||||
history_def_last(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
h->cursor = h->list.prev;
|
||||
if (h->cursor != &h->list)
|
||||
*ev = h->cursor->ev;
|
||||
else {
|
||||
he_seterrev(ev, _HE_LAST_NOTFOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_next():
|
||||
* Default function to return the next event in the history.
|
||||
*/
|
||||
private int
|
||||
history_def_next(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
if (h->cursor != &h->list)
|
||||
h->cursor = h->cursor->next;
|
||||
else {
|
||||
he_seterrev(ev, _HE_EMPTY_LIST);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
if (h->cursor != &h->list)
|
||||
*ev = h->cursor->ev;
|
||||
else {
|
||||
he_seterrev(ev, _HE_END_REACHED);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_prev():
|
||||
* Default function to return the previous event in the history.
|
||||
*/
|
||||
private int
|
||||
history_def_prev(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
if (h->cursor != &h->list)
|
||||
h->cursor = h->cursor->prev;
|
||||
else {
|
||||
he_seterrev(ev,
|
||||
(h->cur > 0) ? _HE_END_REACHED : _HE_EMPTY_LIST);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
if (h->cursor != &h->list)
|
||||
*ev = h->cursor->ev;
|
||||
else {
|
||||
he_seterrev(ev, _HE_START_REACHED);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_curr():
|
||||
* Default function to return the current event in the history.
|
||||
*/
|
||||
private int
|
||||
history_def_curr(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
if (h->cursor != &h->list)
|
||||
*ev = h->cursor->ev;
|
||||
else {
|
||||
he_seterrev(ev,
|
||||
(h->cur > 0) ? _HE_CURR_INVALID : _HE_EMPTY_LIST);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_set():
|
||||
* Default function to set the current event in the history to the
|
||||
* given one.
|
||||
*/
|
||||
private int
|
||||
history_def_set(ptr_t p, HistEvent *ev, const int n)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
if (h->cur == 0) {
|
||||
he_seterrev(ev, _HE_EMPTY_LIST);
|
||||
return (-1);
|
||||
}
|
||||
if (h->cursor == &h->list || h->cursor->ev.num != n) {
|
||||
for (h->cursor = h->list.next; h->cursor != &h->list;
|
||||
h->cursor = h->cursor->next)
|
||||
if (h->cursor->ev.num == n)
|
||||
break;
|
||||
}
|
||||
if (h->cursor == &h->list) {
|
||||
he_seterrev(ev, _HE_NOT_FOUND);
|
||||
return (-1);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_add():
|
||||
* Append string to element
|
||||
*/
|
||||
private int
|
||||
history_def_add(ptr_t p, HistEvent *ev, const char *str)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
size_t len;
|
||||
char *s;
|
||||
HistEventPrivate *evp = (void *)&h->cursor->ev;
|
||||
|
||||
if (h->cursor == &h->list)
|
||||
return (history_def_enter(p, ev, str));
|
||||
len = strlen(evp->str) + strlen(str) + 1;
|
||||
s = (char *) h_malloc(len);
|
||||
if (!s) {
|
||||
he_seterrev(ev, _HE_MALLOC_FAILED);
|
||||
return (-1);
|
||||
}
|
||||
(void) strlcpy(s, h->cursor->ev.str, len);
|
||||
(void) strlcat(s, str, len);
|
||||
h_free(evp->str);
|
||||
evp->str = s;
|
||||
*ev = h->cursor->ev;
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_delete():
|
||||
* Delete element hp of the h list
|
||||
*/
|
||||
/* ARGSUSED */
|
||||
private void
|
||||
history_def_delete(history_t *h, HistEvent *ev, hentry_t *hp)
|
||||
{
|
||||
HistEventPrivate *evp = (void *)&hp->ev;
|
||||
if (hp == &h->list)
|
||||
abort();
|
||||
hp->prev->next = hp->next;
|
||||
hp->next->prev = hp->prev;
|
||||
h_free((ptr_t) evp->str);
|
||||
h_free(hp);
|
||||
h->cur--;
|
||||
}
|
||||
|
||||
|
||||
/* history_def_insert():
|
||||
* Insert element with string str in the h list
|
||||
*/
|
||||
private int
|
||||
history_def_insert(history_t *h, HistEvent *ev, const char *str)
|
||||
{
|
||||
|
||||
h->cursor = (hentry_t *) h_malloc(sizeof(hentry_t));
|
||||
if (h->cursor)
|
||||
h->cursor->ev.str = strdup(str);
|
||||
if (!h->cursor || !h->cursor->ev.str) {
|
||||
he_seterrev(ev, _HE_MALLOC_FAILED);
|
||||
return (-1);
|
||||
}
|
||||
h->cursor->ev.num = ++h->eventid;
|
||||
h->cursor->next = h->list.next;
|
||||
h->cursor->prev = &h->list;
|
||||
h->list.next->prev = h->cursor;
|
||||
h->list.next = h->cursor;
|
||||
h->cur++;
|
||||
|
||||
*ev = h->cursor->ev;
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_enter():
|
||||
* Default function to enter an item in the history
|
||||
*/
|
||||
private int
|
||||
history_def_enter(ptr_t p, HistEvent *ev, const char *str)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
if (history_def_insert(h, ev, str) == -1)
|
||||
return (-1); /* error, keep error message */
|
||||
|
||||
/*
|
||||
* Always keep at least one entry.
|
||||
* This way we don't have to check for the empty list.
|
||||
*/
|
||||
while (h->cur > h->max && h->cur > 0)
|
||||
history_def_delete(h, ev, h->list.prev);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_def_init():
|
||||
* Default history initialization function
|
||||
*/
|
||||
/* ARGSUSED */
|
||||
private void
|
||||
history_def_init(ptr_t *p, HistEvent *ev, int n)
|
||||
{
|
||||
history_t *h = (history_t *) h_malloc(sizeof(history_t));
|
||||
|
||||
if (n <= 0)
|
||||
n = 0;
|
||||
h->eventid = 0;
|
||||
h->cur = 0;
|
||||
h->max = n;
|
||||
h->list.next = h->list.prev = &h->list;
|
||||
h->list.ev.str = NULL;
|
||||
h->list.ev.num = 0;
|
||||
h->cursor = &h->list;
|
||||
*p = (ptr_t) h;
|
||||
}
|
||||
|
||||
|
||||
/* history_def_clear():
|
||||
* Default history cleanup function
|
||||
*/
|
||||
private void
|
||||
history_def_clear(ptr_t p, HistEvent *ev)
|
||||
{
|
||||
history_t *h = (history_t *) p;
|
||||
|
||||
while (h->list.prev != &h->list)
|
||||
history_def_delete(h, ev, h->list.prev);
|
||||
h->eventid = 0;
|
||||
h->cur = 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/************************************************************************/
|
||||
|
||||
/* history_init():
|
||||
* Initialization function.
|
||||
*/
|
||||
public History *
|
||||
history_init(void)
|
||||
{
|
||||
History *h = (History *) h_malloc(sizeof(History));
|
||||
HistEvent ev;
|
||||
|
||||
history_def_init(&h->h_ref, &ev, 0);
|
||||
h->h_ent = -1;
|
||||
h->h_next = history_def_next;
|
||||
h->h_first = history_def_first;
|
||||
h->h_last = history_def_last;
|
||||
h->h_prev = history_def_prev;
|
||||
h->h_curr = history_def_curr;
|
||||
h->h_set = history_def_set;
|
||||
h->h_clear = history_def_clear;
|
||||
h->h_enter = history_def_enter;
|
||||
h->h_add = history_def_add;
|
||||
|
||||
return (h);
|
||||
}
|
||||
|
||||
|
||||
/* history_end():
|
||||
* clean up history;
|
||||
*/
|
||||
public void
|
||||
history_end(History *h)
|
||||
{
|
||||
HistEvent ev;
|
||||
|
||||
if (h->h_next == history_def_next)
|
||||
history_def_clear(h->h_ref, &ev);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* history_setsize():
|
||||
* Set history number of events
|
||||
*/
|
||||
private int
|
||||
history_setsize(History *h, HistEvent *ev, int num)
|
||||
{
|
||||
|
||||
if (h->h_next != history_def_next) {
|
||||
he_seterrev(ev, _HE_NOT_ALLOWED);
|
||||
return (-1);
|
||||
}
|
||||
if (num < 0) {
|
||||
he_seterrev(ev, _HE_BAD_PARAM);
|
||||
return (-1);
|
||||
}
|
||||
history_def_setsize(h->h_ref, num);
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_getsize():
|
||||
* Get number of events currently in history
|
||||
*/
|
||||
private int
|
||||
history_getsize(History *h, HistEvent *ev)
|
||||
{
|
||||
int retval = 0;
|
||||
|
||||
if (h->h_next != history_def_next) {
|
||||
he_seterrev(ev, _HE_NOT_ALLOWED);
|
||||
return (-1);
|
||||
}
|
||||
retval = history_def_getsize(h->h_ref);
|
||||
if (retval < -1) {
|
||||
he_seterrev(ev, _HE_SIZE_NEGATIVE);
|
||||
return (-1);
|
||||
}
|
||||
ev->num = retval;
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_set_fun():
|
||||
* Set history functions
|
||||
*/
|
||||
private int
|
||||
history_set_fun(History *h, History *nh)
|
||||
{
|
||||
HistEvent ev;
|
||||
|
||||
if (nh->h_first == NULL || nh->h_next == NULL || nh->h_last == NULL ||
|
||||
nh->h_prev == NULL || nh->h_curr == NULL || nh->h_set == NULL ||
|
||||
nh->h_enter == NULL || nh->h_add == NULL || nh->h_clear == NULL ||
|
||||
nh->h_ref == NULL) {
|
||||
if (h->h_next != history_def_next) {
|
||||
history_def_init(&h->h_ref, &ev, 0);
|
||||
h->h_first = history_def_first;
|
||||
h->h_next = history_def_next;
|
||||
h->h_last = history_def_last;
|
||||
h->h_prev = history_def_prev;
|
||||
h->h_curr = history_def_curr;
|
||||
h->h_set = history_def_set;
|
||||
h->h_clear = history_def_clear;
|
||||
h->h_enter = history_def_enter;
|
||||
h->h_add = history_def_add;
|
||||
}
|
||||
return (-1);
|
||||
}
|
||||
if (h->h_next == history_def_next)
|
||||
history_def_clear(h->h_ref, &ev);
|
||||
|
||||
h->h_ent = -1;
|
||||
h->h_first = nh->h_first;
|
||||
h->h_next = nh->h_next;
|
||||
h->h_last = nh->h_last;
|
||||
h->h_prev = nh->h_prev;
|
||||
h->h_curr = nh->h_curr;
|
||||
h->h_set = nh->h_set;
|
||||
h->h_clear = nh->h_clear;
|
||||
h->h_enter = nh->h_enter;
|
||||
h->h_add = nh->h_add;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
/* history_load():
|
||||
* History load function
|
||||
*/
|
||||
private int
|
||||
history_load(History *h, const char *fname)
|
||||
{
|
||||
FILE *fp;
|
||||
char *line;
|
||||
size_t sz, max_size;
|
||||
char *ptr;
|
||||
int i = -1;
|
||||
HistEvent ev;
|
||||
|
||||
if ((fp = fopen(fname, "r")) == NULL)
|
||||
return (i);
|
||||
|
||||
if ((line = fgetln(fp, &sz)) == NULL)
|
||||
goto done;
|
||||
|
||||
if (strncmp(line, hist_cookie, sz) != 0)
|
||||
goto done;
|
||||
|
||||
ptr = h_malloc(max_size = 1024);
|
||||
for (i = 0; (line = fgetln(fp, &sz)) != NULL; i++) {
|
||||
char c = line[sz];
|
||||
|
||||
if (sz != 0 && line[sz - 1] == '\n')
|
||||
line[--sz] = '\0';
|
||||
else
|
||||
line[sz] = '\0';
|
||||
|
||||
if (max_size < sz) {
|
||||
max_size = (sz + 1023) & ~1023;
|
||||
ptr = h_realloc(ptr, max_size);
|
||||
}
|
||||
(void) strunvis(ptr, line);
|
||||
line[sz] = c;
|
||||
HENTER(h, &ev, ptr);
|
||||
}
|
||||
h_free(ptr);
|
||||
|
||||
done:
|
||||
(void) fclose(fp);
|
||||
return (i);
|
||||
}
|
||||
|
||||
|
||||
/* history_save():
|
||||
* History save function
|
||||
*/
|
||||
private int
|
||||
history_save(History *h, const char *fname)
|
||||
{
|
||||
FILE *fp;
|
||||
HistEvent ev;
|
||||
int i = 0, retval;
|
||||
size_t len, max_size;
|
||||
char *ptr;
|
||||
|
||||
if ((fp = fopen(fname, "w")) == NULL)
|
||||
return (-1);
|
||||
|
||||
(void) fchmod(fileno(fp), S_IRUSR|S_IWUSR);
|
||||
(void) fputs(hist_cookie, fp);
|
||||
ptr = h_malloc(max_size = 1024);
|
||||
for (retval = HLAST(h, &ev);
|
||||
retval != -1;
|
||||
retval = HPREV(h, &ev), i++) {
|
||||
len = strlen(ev.str) * 4;
|
||||
if (len >= max_size) {
|
||||
max_size = (len + 1023) & 1023;
|
||||
ptr = h_realloc(ptr, max_size);
|
||||
}
|
||||
(void) strvis(ptr, ev.str, VIS_WHITE);
|
||||
(void) fprintf(fp, "%s\n", ev.str);
|
||||
}
|
||||
h_free(ptr);
|
||||
(void) fclose(fp);
|
||||
return (i);
|
||||
}
|
||||
|
||||
|
||||
/* history_prev_event():
|
||||
* Find the previous event, with number given
|
||||
*/
|
||||
private int
|
||||
history_prev_event(History *h, HistEvent *ev, int num)
|
||||
{
|
||||
int retval;
|
||||
|
||||
for (retval = HCURR(h, ev); retval != -1; retval = HPREV(h, ev))
|
||||
if (ev->num == num)
|
||||
return (0);
|
||||
|
||||
he_seterrev(ev, _HE_NOT_FOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/* history_next_event():
|
||||
* Find the next event, with number given
|
||||
*/
|
||||
private int
|
||||
history_next_event(History *h, HistEvent *ev, int num)
|
||||
{
|
||||
int retval;
|
||||
|
||||
for (retval = HCURR(h, ev); retval != -1; retval = HNEXT(h, ev))
|
||||
if (ev->num == num)
|
||||
return (0);
|
||||
|
||||
he_seterrev(ev, _HE_NOT_FOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/* history_prev_string():
|
||||
* Find the previous event beginning with string
|
||||
*/
|
||||
private int
|
||||
history_prev_string(History *h, HistEvent *ev, const char *str)
|
||||
{
|
||||
size_t len = strlen(str);
|
||||
int retval;
|
||||
|
||||
for (retval = HCURR(h, ev); retval != -1; retval = HNEXT(h, ev))
|
||||
if (strncmp(str, ev->str, len) == 0)
|
||||
return (0);
|
||||
|
||||
he_seterrev(ev, _HE_NOT_FOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/* history_next_string():
|
||||
* Find the next event beginning with string
|
||||
*/
|
||||
private int
|
||||
history_next_string(History *h, HistEvent *ev, const char *str)
|
||||
{
|
||||
size_t len = strlen(str);
|
||||
int retval;
|
||||
|
||||
for (retval = HCURR(h, ev); retval != -1; retval = HPREV(h, ev))
|
||||
if (strncmp(str, ev->str, len) == 0)
|
||||
return (0);
|
||||
|
||||
he_seterrev(ev, _HE_NOT_FOUND);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/* history():
|
||||
* User interface to history functions.
|
||||
*/
|
||||
int
|
||||
history(History *h, HistEvent *ev, int fun, ...)
|
||||
{
|
||||
va_list va;
|
||||
const char *str;
|
||||
int retval;
|
||||
|
||||
va_start(va, fun);
|
||||
|
||||
he_seterrev(ev, _HE_OK);
|
||||
|
||||
switch (fun) {
|
||||
case H_GETSIZE:
|
||||
retval = history_getsize(h, ev);
|
||||
break;
|
||||
|
||||
case H_SETSIZE:
|
||||
retval = history_setsize(h, ev, va_arg(va, int));
|
||||
break;
|
||||
|
||||
case H_ADD:
|
||||
str = va_arg(va, const char *);
|
||||
retval = HADD(h, ev, str);
|
||||
break;
|
||||
|
||||
case H_ENTER:
|
||||
str = va_arg(va, const char *);
|
||||
if ((retval = HENTER(h, ev, str)) != -1)
|
||||
h->h_ent = ev->num;
|
||||
break;
|
||||
|
||||
case H_APPEND:
|
||||
str = va_arg(va, const char *);
|
||||
if ((retval = HSET(h, ev, h->h_ent)) != -1)
|
||||
retval = HADD(h, ev, str);
|
||||
break;
|
||||
|
||||
case H_FIRST:
|
||||
retval = HFIRST(h, ev);
|
||||
break;
|
||||
|
||||
case H_NEXT:
|
||||
retval = HNEXT(h, ev);
|
||||
break;
|
||||
|
||||
case H_LAST:
|
||||
retval = HLAST(h, ev);
|
||||
break;
|
||||
|
||||
case H_PREV:
|
||||
retval = HPREV(h, ev);
|
||||
break;
|
||||
|
||||
case H_CURR:
|
||||
retval = HCURR(h, ev);
|
||||
break;
|
||||
|
||||
case H_SET:
|
||||
retval = HSET(h, ev, va_arg(va, const int));
|
||||
break;
|
||||
|
||||
case H_CLEAR:
|
||||
HCLEAR(h, ev);
|
||||
retval = 0;
|
||||
break;
|
||||
|
||||
case H_LOAD:
|
||||
retval = history_load(h, va_arg(va, const char *));
|
||||
if (retval == -1)
|
||||
he_seterrev(ev, _HE_HIST_READ);
|
||||
break;
|
||||
|
||||
case H_SAVE:
|
||||
retval = history_save(h, va_arg(va, const char *));
|
||||
if (retval == -1)
|
||||
he_seterrev(ev, _HE_HIST_WRITE);
|
||||
break;
|
||||
|
||||
case H_PREV_EVENT:
|
||||
retval = history_prev_event(h, ev, va_arg(va, int));
|
||||
break;
|
||||
|
||||
case H_NEXT_EVENT:
|
||||
retval = history_next_event(h, ev, va_arg(va, int));
|
||||
break;
|
||||
|
||||
case H_PREV_STR:
|
||||
retval = history_prev_string(h, ev, va_arg(va, const char *));
|
||||
break;
|
||||
|
||||
case H_NEXT_STR:
|
||||
retval = history_next_string(h, ev, va_arg(va, const char *));
|
||||
break;
|
||||
|
||||
case H_FUNC:
|
||||
{
|
||||
History hf;
|
||||
|
||||
hf.h_ref = va_arg(va, ptr_t);
|
||||
h->h_ent = -1;
|
||||
hf.h_first = va_arg(va, history_gfun_t);
|
||||
hf.h_next = va_arg(va, history_gfun_t);
|
||||
hf.h_last = va_arg(va, history_gfun_t);
|
||||
hf.h_prev = va_arg(va, history_gfun_t);
|
||||
hf.h_curr = va_arg(va, history_gfun_t);
|
||||
hf.h_set = va_arg(va, history_sfun_t);
|
||||
hf.h_clear = va_arg(va, history_vfun_t);
|
||||
hf.h_enter = va_arg(va, history_efun_t);
|
||||
hf.h_add = va_arg(va, history_efun_t);
|
||||
|
||||
if ((retval = history_set_fun(h, &hf)) == -1)
|
||||
he_seterrev(ev, _HE_PARAM_MISSING);
|
||||
break;
|
||||
}
|
||||
|
||||
case H_END:
|
||||
history_end(h);
|
||||
retval = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
retval = -1;
|
||||
he_seterrev(ev, _HE_UNKNOWN);
|
||||
break;
|
||||
}
|
||||
va_end(va);
|
||||
return (retval);
|
||||
}
|
||||
Reference in New Issue
Block a user