diff options
Diffstat (limited to 'cmd-line-utils/libedit/readline.c')
| -rw-r--r-- | cmd-line-utils/libedit/readline.c | 719 |
1 files changed, 523 insertions, 196 deletions
diff --git a/cmd-line-utils/libedit/readline.c b/cmd-line-utils/libedit/readline.c index 0318ab409b3..eaf26d4c497 100644 --- a/cmd-line-utils/libedit/readline.c +++ b/cmd-line-utils/libedit/readline.c @@ -1,4 +1,4 @@ -/* $NetBSD: readline.c,v 1.78 2009/02/05 19:15:26 christos Exp $ */ +/* $NetBSD: readline.c,v 1.99 2011/08/16 16:25:15 christos Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. @@ -69,6 +69,7 @@ void rl_deprep_terminal(void); /* readline compatibility stuff - look at readline sources/documentation */ /* to see what these variables mean */ const char *rl_library_version = "EditLine wrapper"; +int rl_readline_version = RL_READLINE_VERSION; static char empty[] = { '\0' }; static char expand_chars[] = { ' ', '\t', '\n', '=', '(', '\0' }; static char break_chars[] = { ' ', '\t', '\n', '"', '\\', '\'', '`', '@', '$', @@ -117,6 +118,7 @@ Function *rl_startup_hook = NULL; VFunction *rl_completion_display_matches_hook = NULL; VFunction *rl_prep_term_function = (VFunction *)rl_prep_terminal; VFunction *rl_deprep_term_function = (VFunction *)rl_deprep_terminal; +KEYMAP_ENTRY_ARRAY emacs_meta_keymap; /* * The current prompt string. @@ -174,7 +176,7 @@ static char * _get_prompt(EditLine *el __attribute__((__unused__))) { rl_already_prompted = 1; - return (rl_prompt); + return rl_prompt; } @@ -188,12 +190,12 @@ _move_history(int op) static HIST_ENTRY rl_he; if (history(h, &ev, op) != 0) - return (HIST_ENTRY *) NULL; + return NULL; rl_he.line = ev.str; rl_he.data = NULL; - return (&rl_he); + return &rl_he; } @@ -209,10 +211,34 @@ _getc_function(EditLine *el __attribute__((__unused__)), char *c) i = (*rl_getc_function)(NULL); if (i == -1) return 0; - *c = i; + *c = (char)i; return 1; } +static void +_resize_fun(EditLine *el, void *a) +{ + const LineInfo *li; + char **ap = a; + + li = el_line(el); + /* a cheesy way to get rid of const cast. */ + *ap = memchr(li->buffer, *li->buffer, (size_t)1); +} + +static const char * +_default_history_file(void) +{ + struct passwd *p; + static char path[PATH_MAX]; + + if (*path) + return path; + if ((p = getpwuid(getuid())) == NULL) + return NULL; + (void)snprintf(path, sizeof(path), "%s/.history", p->pw_dir); + return path; +} /* * READLINE compatibility stuff @@ -224,14 +250,22 @@ _getc_function(EditLine *el __attribute__((__unused__)), char *c) int rl_set_prompt(const char *prompt) { + char *p; + if (!prompt) prompt = ""; if (rl_prompt != NULL && strcmp(rl_prompt, prompt) == 0) return 0; if (rl_prompt) - free(rl_prompt); + el_free(rl_prompt); rl_prompt = strdup(prompt); - return rl_prompt == NULL ? -1 : 0; + if (rl_prompt == NULL) + return -1; + + while ((p = strchr(rl_prompt, RL_PROMPT_END_IGNORE)) != NULL) + *p = RL_PROMPT_START_IGNORE; + + return 0; } /* @@ -241,7 +275,6 @@ int rl_initialize(void) { HistEvent ev; - const LineInfo *li; int editmode = 1; struct termios t; @@ -268,13 +301,16 @@ rl_initialize(void) h = history_init(); if (!e || !h) - return (-1); + return -1; history(h, &ev, H_SETSIZE, INT_MAX); /* unlimited */ history_length = 0; max_input_history = INT_MAX; el_set(e, EL_HIST, history, h); + /* Setup resize function */ + el_set(e, EL_RESIZE, _resize_fun, &rl_line_buffer); + /* setup getc function if valid */ if (rl_getc_function) el_set(e, EL_GETCFN, _getc_function); @@ -285,7 +321,7 @@ rl_initialize(void) el_end(e); return -1; } - el_set(e, EL_PROMPT, _get_prompt); + el_set(e, EL_PROMPT, _get_prompt, RL_PROMPT_START_IGNORE); el_set(e, EL_SIGNAL, rl_catch_signals); /* set default mode to "emacs"-style and read setting afterwards */ @@ -312,7 +348,38 @@ rl_initialize(void) "ReadLine compatible suspend function", _el_rl_tstp); el_set(e, EL_BIND, "^Z", "rl_tstp", NULL); - + + /* + * Set some readline compatible key-bindings. + */ + el_set(e, EL_BIND, "^R", "em-inc-search-prev", NULL); + + /* + * Allow the use of Home/End keys. + */ + el_set(e, EL_BIND, "\\e[1~", "ed-move-to-beg", NULL); + el_set(e, EL_BIND, "\\e[4~", "ed-move-to-end", NULL); + el_set(e, EL_BIND, "\\e[7~", "ed-move-to-beg", NULL); + el_set(e, EL_BIND, "\\e[8~", "ed-move-to-end", NULL); + el_set(e, EL_BIND, "\\e[H", "ed-move-to-beg", NULL); + el_set(e, EL_BIND, "\\e[F", "ed-move-to-end", NULL); + + /* + * Allow the use of the Delete/Insert keys. + */ + el_set(e, EL_BIND, "\\e[3~", "ed-delete-next-char", NULL); + el_set(e, EL_BIND, "\\e[2~", "ed-quoted-insert", NULL); + + /* + * Ctrl-left-arrow and Ctrl-right-arrow for word moving. + */ + el_set(e, EL_BIND, "\\e[1;5C", "em-next-word", NULL); + el_set(e, EL_BIND, "\\e[1;5D", "ed-prev-word", NULL); + el_set(e, EL_BIND, "\\e[5C", "em-next-word", NULL); + el_set(e, EL_BIND, "\\e[5D", "ed-prev-word", NULL); + el_set(e, EL_BIND, "\\e\\e[C", "em-next-word", NULL); + el_set(e, EL_BIND, "\\e\\e[D", "ed-prev-word", NULL); + /* read settings from configuration file */ el_source(e, NULL); @@ -320,15 +387,13 @@ rl_initialize(void) * Unfortunately, some applications really do use rl_point * and rl_line_buffer directly. */ - li = el_line(e); - /* a cheesy way to get rid of const cast. */ - rl_line_buffer = memchr(li->buffer, *li->buffer, 1); + _resize_fun(e, &rl_line_buffer); _rl_update_pos(); if (rl_startup_hook) (*rl_startup_hook)(NULL, 0); - return (0); + return 0; } @@ -437,7 +502,7 @@ _rl_compat_sub(const char *str, const char *what, const char *with, } else s++; } - r = result = malloc(len + 1); + r = result = el_malloc((len + 1) * sizeof(*r)); if (result == NULL) return NULL; s = str; @@ -448,13 +513,13 @@ _rl_compat_sub(const char *str, const char *what, const char *with, s += what_len; if (!globally) { (void)strcpy(r, s); - return(result); + return result; } } else *r++ = *s++; } *r = '\0'; - return(result); + return result; } static char *last_search_pat; /* last !?pat[?] search pattern */ @@ -471,14 +536,14 @@ get_history_event(const char *cmd, int *cindex, int qchar) idx = *cindex; if (cmd[idx++] != history_expansion_char) - return(NULL); + return NULL; /* find out which event to take */ if (cmd[idx] == history_expansion_char || cmd[idx] == '\0') { if (history(h, &ev, H_FIRST) != 0) - return(NULL); + return NULL; *cindex = cmd[idx]? (idx + 1):idx; - return(ev.str); + return ev.str; } sign = 0; if (cmd[idx] == '-') { @@ -498,10 +563,10 @@ get_history_event(const char *cmd, int *cindex, int qchar) num = history_length - num + 1; if (!(rl_he = history_get(num))) - return(NULL); + return NULL; *cindex = idx; - return(rl_he->line); + return rl_he->line; } sub = 0; if (cmd[idx] == '?') { @@ -519,15 +584,15 @@ get_history_event(const char *cmd, int *cindex, int qchar) break; idx++; } - len = idx - begin; + len = (size_t)idx - (size_t)begin; if (sub && cmd[idx] == '?') idx++; if (sub && len == 0 && last_search_pat && *last_search_pat) pat = last_search_pat; else if (len == 0) - return(NULL); + return NULL; else { - if ((pat = malloc(len + 1)) == NULL) + if ((pat = el_malloc((len + 1) * sizeof(*pat))) == NULL) return NULL; (void)strncpy(pat, cmd + begin, len); pat[len] = '\0'; @@ -535,15 +600,15 @@ get_history_event(const char *cmd, int *cindex, int qchar) if (history(h, &ev, H_CURR) != 0) { if (pat != last_search_pat) - free(pat); - return (NULL); + el_free(pat); + return NULL; } num = ev.num; if (sub) { if (pat != last_search_pat) { if (last_search_pat) - free(last_search_pat); + el_free(last_search_pat); last_search_pat = pat; } ret = history_search(pat, -1); @@ -555,21 +620,21 @@ get_history_event(const char *cmd, int *cindex, int qchar) history(h, &ev, H_FIRST); (void)fprintf(rl_outstream, "%s: Event not found\n", pat); if (pat != last_search_pat) - free(pat); - return(NULL); + el_free(pat); + return NULL; } if (sub && len) { if (last_search_match && last_search_match != pat) - free(last_search_match); + el_free(last_search_match); last_search_match = pat; } if (pat != last_search_pat) - free(pat); + el_free(pat); if (history(h, &ev, H_CURR) != 0) - return(NULL); + return NULL; *cindex = idx; rptr = ev.str; @@ -621,7 +686,8 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, } else { if (command[offs + 1] == '#') { /* use command so far */ - if ((aptr = malloc(offs + 1)) == NULL) + if ((aptr = el_malloc((offs + 1) * sizeof(*aptr))) + == NULL) return -1; (void)strncpy(aptr, command, offs); aptr[offs] = '\0'; @@ -632,17 +698,19 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, qchar = (offs > 0 && command[offs - 1] == '"')? '"':0; ptr = get_history_event(command + offs, &idx, qchar); } - has_mods = command[offs + idx] == ':'; + has_mods = command[offs + (size_t)idx] == ':'; } if (ptr == NULL && aptr == NULL) - return(-1); + return -1; if (!has_mods) { - *result = strdup(aptr? aptr : ptr); + *result = strdup(aptr ? aptr : ptr); if (aptr) - free(aptr); - return(1); + el_free(aptr); + if (*result == NULL) + return -1; + return 1; } cmd = command + offs + idx + 1; @@ -687,18 +755,18 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, (void)fprintf(rl_outstream, "%s: Bad word specifier", command + offs + idx); if (aptr) - free(aptr); - return(-1); + el_free(aptr); + return -1; } } else tmp = strdup(aptr? aptr:ptr); if (aptr) - free(aptr); + el_free(aptr); if (*cmd == '\0' || ((size_t)(cmd - (command + offs)) >= cmdlen)) { *result = tmp; - return(1); + return 1; } for (; *cmd; cmd++) { @@ -710,7 +778,7 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, } else if (*cmd == 't') { /* remove leading path */ if ((aptr = strrchr(tmp, '/')) != NULL) { aptr = strdup(aptr + 1); - free(tmp); + el_free(tmp); tmp = aptr; } } else if (*cmd == 'r') { /* remove trailing suffix */ @@ -719,7 +787,7 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, } else if (*cmd == 'e') { /* remove all but suffix */ if ((aptr = strrchr(tmp, '.')) != NULL) { aptr = strdup(aptr); - free(tmp); + el_free(tmp); tmp = aptr; } } else if (*cmd == 'p') /* print only */ @@ -736,10 +804,10 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, else if (*cmd == 's') { delim = *(++cmd), cmd++; size = 16; - what = realloc(from, size); + what = el_realloc(from, size * sizeof(*what)); if (what == NULL) { - free(from); - free(tmp); + el_free(from); + el_free(tmp); return 0; } len = 0; @@ -748,11 +816,12 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, cmd++; if (len >= size) { char *nwhat; - nwhat = realloc(what, - (size <<= 1)); + nwhat = el_realloc(what, + (size <<= 1) * + sizeof(*nwhat)); if (nwhat == NULL) { - free(what); - free(tmp); + el_free(what); + el_free(tmp); return 0; } what = nwhat; @@ -762,17 +831,17 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, what[len] = '\0'; from = what; if (*what == '\0') { - free(what); + el_free(what); if (search) { from = strdup(search); if (from == NULL) { - free(tmp); + el_free(tmp); return 0; } } else { from = NULL; - free(tmp); - return (-1); + el_free(tmp); + return -1; } } cmd++; /* shift after delim */ @@ -780,10 +849,10 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, continue; size = 16; - with = realloc(to, size); + with = el_realloc(to, size * sizeof(*with)); if (with == NULL) { - free(to); - free(tmp); + el_free(to); + el_free(tmp); return -1; } len = 0; @@ -792,10 +861,11 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, if (len + from_len + 1 >= size) { char *nwith; size += from_len + 1; - nwith = realloc(with, size); + nwith = el_realloc(with, + size * sizeof(*nwith)); if (nwith == NULL) { - free(with); - free(tmp); + el_free(with); + el_free(tmp); return -1; } with = nwith; @@ -818,14 +888,14 @@ _history_expand_command(const char *command, size_t offs, size_t cmdlen, aptr = _rl_compat_sub(tmp, from, to, g_on); if (aptr) { - free(tmp); + el_free(tmp); tmp = aptr; } g_on = 0; } } *result = tmp; - return (p_on? 2:1); + return p_on? 2:1; } @@ -844,13 +914,13 @@ history_expand(char *str, char **output) if (history_expansion_char == 0) { *output = strdup(str); - return(0); + return 0; } *output = NULL; if (str[0] == history_subst_char) { /* ^foo^foo2^ is equivalent to !!:s^foo^foo2^ */ - *output = malloc(strlen(str) + 4 + 1); + *output = el_malloc((strlen(str) + 4 + 1) * sizeof(*output)); if (*output == NULL) return 0; (*output)[0] = (*output)[1] = history_expansion_char; @@ -867,11 +937,12 @@ history_expand(char *str, char **output) #define ADD_STRING(what, len, fr) \ { \ if (idx + len + 1 > size) { \ - char *nresult = realloc(result, (size += len + 1));\ + char *nresult = el_realloc(result, \ + (size += len + 1) * sizeof(*nresult)); \ if (nresult == NULL) { \ - free(*output); \ + el_free(*output); \ if (/*CONSTCOND*/fr) \ - free(tmp); \ + el_free(tmp); \ return 0; \ } \ result = nresult; \ @@ -938,7 +1009,7 @@ loop: ADD_STRING(tmp, len, 1); } if (tmp) { - free(tmp); + el_free(tmp); tmp = NULL; } i = j; @@ -955,10 +1026,10 @@ loop: ret = -1; #endif } - free(*output); + el_free(*output); *output = result; - return (ret); + return ret; } /* @@ -968,40 +1039,39 @@ char * history_arg_extract(int start, int end, const char *str) { size_t i, len, max; - char **arr, *result; + char **arr, *result = NULL; arr = history_tokenize(str); if (!arr) - return(NULL); - if (arr && *arr == NULL) { - free(arr); - return(NULL); - } + return NULL; + if (arr && *arr == NULL) + goto out; for (max = 0; arr[max]; max++) continue; max--; if (start == '$') - start = max; + start = (int)max; if (end == '$') - end = max; + end = (int)max; if (end < 0) - end = max + end + 1; + end = (int)max + end + 1; if (start < 0) start = end; - if (start < 0 || end < 0 || (size_t)start > max || (size_t)end > max || start > end) - return(NULL); + if (start < 0 || end < 0 || (size_t)start > max || + (size_t)end > max || start > end) + goto out; - for (i = start, len = 0; i <= (size_t)end; i++) + for (i = (size_t)start, len = 0; i <= (size_t)end; i++) len += strlen(arr[i]) + 1; len++; - result = malloc(len); + result = el_malloc(len * sizeof(*result)); if (result == NULL) - return NULL; + goto out; - for (i = start, len = 0; i <= (size_t)end; i++) { + for (i = (size_t)start, len = 0; i <= (size_t)end; i++) { (void)strcpy(result + len, arr[i]); len += strlen(arr[i]); if (i < (size_t)end) @@ -1009,11 +1079,12 @@ history_arg_extract(int start, int end, const char *str) } result[len] = '\0'; +out: for (i = 0; arr[i]; i++) - free(arr[i]); - free(arr); + el_free(arr[i]); + el_free(arr); - return(result); + return result; } /* @@ -1050,19 +1121,19 @@ history_tokenize(const char *str) if (idx + 2 >= size) { char **nresult; size <<= 1; - nresult = realloc(result, size * sizeof(char *)); + nresult = el_realloc(result, (size_t)size * sizeof(*nresult)); if (nresult == NULL) { - free(result); + el_free(result); return NULL; } result = nresult; } - len = i - start; - temp = malloc(len + 1); + len = (size_t)i - (size_t)start; + temp = el_malloc((size_t)(len + 1) * sizeof(*temp)); if (temp == NULL) { for (i = 0; i < idx; i++) - free(result[i]); - free(result); + el_free(result[i]); + el_free(result); return NULL; } (void)strncpy(temp, &str[start], len); @@ -1072,7 +1143,7 @@ history_tokenize(const char *str) if (str[i]) i++; } - return (result); + return result; } @@ -1104,7 +1175,7 @@ unstifle_history(void) history(h, &ev, H_SETSIZE, INT_MAX); omax = max_input_history; max_input_history = INT_MAX; - return (omax); /* some value _must_ be returned */ + return omax; /* some value _must_ be returned */ } @@ -1113,7 +1184,146 @@ history_is_stifled(void) { /* cannot return true answer */ - return (max_input_history != INT_MAX); + return max_input_history != INT_MAX; +} + +static const char _history_tmp_template[] = "/tmp/.historyXXXXXX"; + +int +history_truncate_file (const char *filename, int nlines) +{ + int ret = 0; + FILE *fp, *tp; + char template[sizeof(_history_tmp_template)]; + char buf[4096]; + int fd; + char *cp; + off_t off; + int count = 0; + ssize_t left = 0; + + if (filename == NULL && (filename = _default_history_file()) == NULL) + return errno; + if ((fp = fopen(filename, "r+")) == NULL) + return errno; + strcpy(template, _history_tmp_template); + if ((fd = mkstemp(template)) == -1) { + ret = errno; + goto out1; + } + + if ((tp = fdopen(fd, "r+")) == NULL) { + close(fd); + ret = errno; + goto out2; + } + + for(;;) { + if (fread(buf, sizeof(buf), (size_t)1, fp) != 1) { + if (ferror(fp)) { + ret = errno; + break; + } + if (fseeko(fp, (off_t)sizeof(buf) * count, SEEK_SET) == + (off_t)-1) { + ret = errno; + break; + } + left = (ssize_t)fread(buf, (size_t)1, sizeof(buf), fp); + if (ferror(fp)) { + ret = errno; + break; + } + if (left == 0) { + count--; + left = sizeof(buf); + } else if (fwrite(buf, (size_t)left, (size_t)1, tp) + != 1) { + ret = errno; + break; + } + fflush(tp); + break; + } + if (fwrite(buf, sizeof(buf), (size_t)1, tp) != 1) { + ret = errno; + break; + } + count++; + } + if (ret) + goto out3; + cp = buf + left - 1; + if(*cp != '\n') + cp++; + for(;;) { + while (--cp >= buf) { + if (*cp == '\n') { + if (--nlines == 0) { + if (++cp >= buf + sizeof(buf)) { + count++; + cp = buf; + } + break; + } + } + } + if (nlines <= 0 || count == 0) + break; + count--; + if (fseeko(tp, (off_t)sizeof(buf) * count, SEEK_SET) < 0) { + ret = errno; + break; + } + if (fread(buf, sizeof(buf), (size_t)1, tp) != 1) { + if (ferror(tp)) { + ret = errno; + break; + } + ret = EAGAIN; + break; + } + cp = buf + sizeof(buf); + } + + if (ret || nlines > 0) + goto out3; + + if (fseeko(fp, (off_t)0, SEEK_SET) == (off_t)-1) { + ret = errno; + goto out3; + } + + if (fseeko(tp, (off_t)sizeof(buf) * count + (cp - buf), SEEK_SET) == + (off_t)-1) { + ret = errno; + goto out3; + } + + for(;;) { + if ((left = (ssize_t)fread(buf, (size_t)1, sizeof(buf), tp)) == 0) { + if (ferror(fp)) + ret = errno; + break; + } + if (fwrite(buf, (size_t)left, (size_t)1, fp) != 1) { + ret = errno; + break; + } + } + fflush(fp); + if((off = ftello(fp)) > 0) { + if (ftruncate(fileno(fp), off) == -1) + ret = errno; + } +out3: + fclose(tp); +out2: + unlink(template); +out1: + fclose(fp); + + return ret; } @@ -1127,7 +1337,10 @@ read_history(const char *filename) if (h == NULL || e == NULL) rl_initialize(); - return (history(h, &ev, H_LOAD, filename) == -1); + if (filename == NULL && (filename = _default_history_file()) == NULL) + return errno; + return history(h, &ev, H_LOAD, filename) == -1 ? + (errno ? errno : EINVAL) : 0; } @@ -1141,7 +1354,10 @@ write_history(const char *filename) if (h == NULL || e == NULL) rl_initialize(); - return (history(h, &ev, H_SAVE, filename) == -1); + if (filename == NULL && (filename = _default_history_file()) == NULL) + return errno; + return history(h, &ev, H_SAVE, filename) == -1 ? + (errno ? errno : EINVAL) : 0; } @@ -1162,24 +1378,23 @@ history_get(int num) /* save current position */ if (history(h, &ev, H_CURR) != 0) - return (NULL); + return NULL; curr_num = ev.num; - /* start from most recent */ - if (history(h, &ev, H_FIRST) != 0) - return (NULL); /* error */ + /* start from the oldest */ + if (history(h, &ev, H_LAST) != 0) + return NULL; /* error */ - /* look backwards for event matching specified offset */ - if (history(h, &ev, H_NEXT_EVENT, num + 1)) - return (NULL); + /* look forwards for event matching specified offset */ + if (history(h, &ev, H_NEXT_EVDATA, num, &she.data)) + return NULL; she.line = ev.str; - she.data = NULL; /* restore pointer to where it was */ (void)history(h, &ev, H_SET, curr_num); - return (&she); + return &she; } @@ -1198,7 +1413,7 @@ add_history(const char *line) if (history(h, &ev, H_GETSIZE) == 0) history_length = ev.num; - return (!(history_length > 0)); /* return 0 if all is okay */ + return !(history_length > 0); /* return 0 if all is okay */ } @@ -1208,26 +1423,75 @@ add_history(const char *line) HIST_ENTRY * remove_history(int num) { - HIST_ENTRY *she; + HIST_ENTRY *he; HistEvent ev; if (h == NULL || e == NULL) rl_initialize(); - if (history(h, &ev, H_DEL, num) != 0) + if ((he = el_malloc(sizeof(*he))) == NULL) return NULL; - if ((she = malloc(sizeof(*she))) == NULL) + if (history(h, &ev, H_DELDATA, num, &he->data) != 0) { + el_free(he); return NULL; + } - she->line = ev.str; - she->data = NULL; + he->line = ev.str; + if (history(h, &ev, H_GETSIZE) == 0) + history_length = ev.num; - return she; + return he; } /* + * replace the line and data of the num-th entry + */ +HIST_ENTRY * +replace_history_entry(int num, const char *line, histdata_t data) +{ + HIST_ENTRY *he; + HistEvent ev; + int curr_num; + + if (h == NULL || e == NULL) + rl_initialize(); + + /* save current position */ + if (history(h, &ev, H_CURR) != 0) + return NULL; + curr_num = ev.num; + + /* start from the oldest */ + if (history(h, &ev, H_LAST) != 0) + return NULL; /* error */ + + if ((he = el_malloc(sizeof(*he))) == NULL) + return NULL; + + /* look forwards for event matching specified offset */ + if (history(h, &ev, H_NEXT_EVDATA, num, &he->data)) + goto out; + + he->line = strdup(ev.str); + if (he->line == NULL) + goto out; + + if (history(h, &ev, H_REPLACE, line, data)) + goto out; + + /* restore pointer to where it was */ + if (history(h, &ev, H_SET, curr_num)) + goto out; + + return he; +out: + el_free(he); + return NULL; +} + +/* * clear the history list - delete all entries */ void @@ -1235,7 +1499,8 @@ clear_history(void) { HistEvent ev; - history(h, &ev, H_CLEAR); + (void)history(h, &ev, H_CLEAR); + history_length = 0; } @@ -1249,15 +1514,15 @@ where_history(void) int curr_num, off; if (history(h, &ev, H_CURR) != 0) - return (0); + return 0; curr_num = ev.num; - history(h, &ev, H_FIRST); + (void)history(h, &ev, H_FIRST); off = 1; while (ev.num != curr_num && history(h, &ev, H_NEXT) == 0) off++; - return (off); + return off; } @@ -1268,7 +1533,7 @@ HIST_ENTRY * current_history(void) { - return (_move_history(H_CURR)); + return _move_history(H_CURR); } @@ -1279,22 +1544,23 @@ int history_total_bytes(void) { HistEvent ev; - int curr_num, size; + int curr_num; + size_t size; if (history(h, &ev, H_CURR) != 0) - return (-1); + return -1; curr_num = ev.num; - history(h, &ev, H_FIRST); + (void)history(h, &ev, H_FIRST); size = 0; do - size += strlen(ev.str); + size += strlen(ev.str) * sizeof(*ev.str); while (history(h, &ev, H_NEXT) == 0); /* get to the same position as before */ history(h, &ev, H_PREV_EVENT, curr_num); - return (size); + return (int)size; } @@ -1307,17 +1573,21 @@ history_set_pos(int pos) HistEvent ev; int curr_num; - if (pos > history_length || pos < 0) - return (-1); + if (pos >= history_length || pos < 0) + return -1; - history(h, &ev, H_CURR); + (void)history(h, &ev, H_CURR); curr_num = ev.num; - if (history(h, &ev, H_SET, pos)) { - history(h, &ev, H_SET, curr_num); - return(-1); + /* + * use H_DELDATA to set to nth history (without delete) by passing + * (void **)-1 + */ + if (history(h, &ev, H_DELDATA, pos, (void **)-1)) { + (void)history(h, &ev, H_SET, curr_num); + return -1; } - return (0); + return 0; } @@ -1328,7 +1598,7 @@ HIST_ENTRY * previous_history(void) { - return (_move_history(H_PREV)); + return _move_history(H_PREV); } @@ -1339,7 +1609,7 @@ HIST_ENTRY * next_history(void) { - return (_move_history(H_NEXT)); + return _move_history(H_NEXT); } @@ -1354,17 +1624,17 @@ history_search(const char *str, int direction) int curr_num; if (history(h, &ev, H_CURR) != 0) - return (-1); + return -1; curr_num = ev.num; for (;;) { if ((strp = strstr(ev.str, str)) != NULL) - return (int) (strp - ev.str); + return (int)(strp - ev.str); if (history(h, &ev, direction < 0 ? H_NEXT:H_PREV) != 0) break; } - history(h, &ev, H_SET, curr_num); - return (-1); + (void)history(h, &ev, H_SET, curr_num); + return -1; } @@ -1376,7 +1646,8 @@ history_search_prefix(const char *str, int direction) { HistEvent ev; - return (history(h, &ev, direction < 0? H_PREV_STR:H_NEXT_STR, str)); + return (history(h, &ev, direction < 0 ? + H_PREV_STR : H_NEXT_STR, str)); } @@ -1396,24 +1667,24 @@ history_search_pos(const char *str, pos = (pos > 0) ? 1 : -1; if (history(h, &ev, H_CURR) != 0) - return (-1); + return -1; curr_num = ev.num; if (history_set_pos(off) != 0 || history(h, &ev, H_CURR) != 0) - return (-1); - + return -1; for (;;) { if (strstr(ev.str, str)) - return (off); + return off; if (history(h, &ev, (pos < 0) ? H_PREV : H_NEXT) != 0) break; } /* set "current" pointer back to previous state */ - history(h, &ev, (pos < 0) ? H_NEXT_EVENT : H_PREV_EVENT, curr_num); + (void)history(h, &ev, + pos < 0 ? H_NEXT_EVENT : H_PREV_EVENT, curr_num); - return (-1); + return -1; } @@ -1436,16 +1707,20 @@ filename_completion_function(const char *name, int state) * a completion generator for usernames; returns _first_ username * which starts with supplied text * text contains a partial username preceded by random character - * (usually '~'); state is ignored + * (usually '~'); state resets search from start (??? should we do that anyway) * it's callers responsibility to free returned value */ char * username_completion_function(const char *text, int state) { - struct passwd *pwd; +#if defined(HAVE_GETPW_R_POSIX) || defined(HAVE_GETPW_R_DRAFT) + struct passwd pwres; + char pwbuf[1024]; +#endif + struct passwd *pass = NULL; if (text[0] == '\0') - return (NULL); + return NULL; if (*text == '~') text++; @@ -1453,15 +1728,21 @@ username_completion_function(const char *text, int state) if (state == 0) setpwent(); - /* XXXMYSQL: just use non-_r functions for now */ - while ((pwd = getpwent()) && text[0] == pwd->pw_name[0] - && strcmp(text, pwd->pw_name) == 0); + while ( +#if defined(HAVE_GETPW_R_POSIX) || defined(HAVE_GETPW_R_DRAFT) + getpwent_r(&pwres, pwbuf, sizeof(pwbuf), &pass) == 0 && pass != NULL +#else + (pass = getpwent()) != NULL +#endif + && text[0] == pass->pw_name[0] + && strcmp(text, pass->pw_name) == 0) + continue; - if (pwd == NULL) { + if (pass == NULL) { endpwent(); - return (NULL); + return NULL; } - return (strdup(pwd->pw_name)); + return strdup(pass->pw_name); } @@ -1485,7 +1766,7 @@ void rl_display_match_list(char **matches, int len, int max) { - fn_display_match_list(e, matches, len, max); + fn_display_match_list(e, matches, (size_t)len, (size_t)max); } static const char * @@ -1494,7 +1775,7 @@ _rl_completion_append_character_function(const char *dummy __attribute__((__unused__))) { static char buf[2]; - buf[0] = rl_completion_append_character; + buf[0] = (char)rl_completion_append_character; buf[1] = '\0'; return buf; } @@ -1507,6 +1788,10 @@ _rl_completion_append_character_function(const char *dummy int rl_complete(int ignore __attribute__((__unused__)), int invoking_key) { +#ifdef WIDECHAR + static ct_buffer_t wbreak_conv, sprefix_conv; +#endif + if (h == NULL || e == NULL) rl_initialize(); @@ -1515,17 +1800,21 @@ rl_complete(int ignore __attribute__((__unused__)), int invoking_key) arr[0] = (char)invoking_key; arr[1] = '\0'; el_insertstr(e, arr); - return (CC_REFRESH); + return CC_REFRESH; } /* Just look at how many global variables modify this operation! */ return fn_complete(e, (CPFunction *)rl_completion_entry_function, rl_attempted_completion_function, - rl_basic_word_break_characters, rl_special_prefixes, - _rl_completion_append_character_function, rl_completion_query_items, + ct_decode_string(rl_basic_word_break_characters, &wbreak_conv), + ct_decode_string(rl_special_prefixes, &sprefix_conv), + _rl_completion_append_character_function, + (size_t)rl_completion_query_items, &rl_completion_type, &rl_attempted_completion_over, &rl_point, &rl_end); + + } @@ -1544,7 +1833,7 @@ _el_rl_complete(EditLine *el __attribute__((__unused__)), int ch) * bind key c to readline-type function func */ int -rl_bind_key(int c, int func(int, int)) +rl_bind_key(int c, rl_command_func_t *func) { int retval = -1; @@ -1556,7 +1845,7 @@ rl_bind_key(int c, int func(int, int)) e->el_map.key[c] = ED_INSERT; retval = 0; } - return (retval); + return retval; } @@ -1572,7 +1861,7 @@ rl_read_key(void) if (e == NULL || h == NULL) rl_initialize(); - return (el_getc(e, fooarr)); + return el_getc(e, fooarr); } @@ -1602,19 +1891,33 @@ rl_insert(int count, int c) rl_initialize(); /* XXX - int -> char conversion can lose on multichars */ - arr[0] = c; + arr[0] = (char)c; arr[1] = '\0'; for (; count > 0; count--) el_push(e, arr); - return (0); + return 0; +} + +int +rl_insert_text(const char *text) +{ + if (!text || *text == 0) + return 0; + + if (h == NULL || e == NULL) + rl_initialize(); + + if (el_insertstr(e, text) < 0) + return 0; + return (int)strlen(text); } /*ARGSUSED*/ int rl_newline(int count __attribute__((__unused__)), - int c __attribute__((__unused__))) + int c __attribute__((__unused__))) { /* * Readline-4.0 appears to ignore the args. @@ -1675,7 +1978,7 @@ rl_callback_read_char() } else wbuf = NULL; (*(void (*)(const char *))rl_linefunc)(wbuf); - el_set(e, EL_UNBUFFERED, 1); + //el_set(e, EL_UNBUFFERED, 1); } } @@ -1701,7 +2004,7 @@ void rl_redisplay(void) { char a[2]; - a[0] = e->el_tty.t_c[TS_IO][C_REPRINT]; + a[0] = (char)e->el_tty.t_c[TS_IO][C_REPRINT]; a[1] = '\0'; el_push(e, a); } @@ -1710,7 +2013,7 @@ int rl_get_previous_history(int count, int key) { char a[2]; - a[0] = key; + a[0] = (char)key; a[1] = '\0'; while (count--) el_push(e, a); @@ -1733,7 +2036,7 @@ rl_deprep_terminal(void) int rl_read_init_file(const char *s) { - return(el_source(e, s)); + return el_source(e, s); } int @@ -1747,7 +2050,7 @@ rl_parse_and_bind(const char *line) tok_str(tok, line, &argc, &argv); argc = el_parse(e, argc, argv); tok_end(tok); - return (argc ? 1 : 0); + return argc ? 1 : 0; } int @@ -1757,7 +2060,7 @@ rl_variable_bind(const char *var, const char *value) * The proper return value is undocument, but this is what the * readline source seems to do. */ - return ((el_set(e, EL_BIND, "", var, value) == -1) ? 1 : 0); + return el_set(e, EL_BIND, "", var, value) == -1 ? 1 : 0; } void @@ -1765,7 +2068,7 @@ rl_stuff_char(int c) { char buf[2]; - buf[0] = c; + buf[0] = (char)c; buf[1] = '\0'; el_insertstr(e, buf); } @@ -1773,7 +2076,8 @@ rl_stuff_char(int c) static int _rl_event_read_char(EditLine *el, char *cp) { - int n, num_read = 0; + int n; + ssize_t num_read = 0; *cp = '\0'; while (rl_event_hook) { @@ -1782,23 +2086,23 @@ _rl_event_read_char(EditLine *el, char *cp) #if defined(FIONREAD) if (ioctl(el->el_infd, FIONREAD, &n) < 0) - return(-1); + return -1; if (n) - num_read = read(el->el_infd, cp, 1); + num_read = read(el->el_infd, cp, (size_t)1); else num_read = 0; #elif defined(F_SETFL) && defined(O_NDELAY) if ((n = fcntl(el->el_infd, F_GETFL, 0)) < 0) - return(-1); + return -1; if (fcntl(el->el_infd, F_SETFL, n|O_NDELAY) < 0) - return(-1); + return -1; num_read = read(el->el_infd, cp, 1); if (fcntl(el->el_infd, F_SETFL, n)) - return(-1); + return -1; #else /* not non-blocking, but what you gonna do? */ num_read = read(el->el_infd, cp, 1); - return(-1); + return -1; #endif if (num_read < 0 && errno == EAGAIN) @@ -1809,7 +2113,7 @@ _rl_event_read_char(EditLine *el, char *cp) } if (!rl_event_hook) el_set(el, EL_GETCFN, EL_BUILTIN_GETCFN); - return(num_read); + return (int)num_read; } static void @@ -1817,8 +2121,8 @@ _rl_update_pos(void) { const LineInfo *li = el_line(e); - rl_point = li->cursor - li->buffer; - rl_end = li->lastchar - li->buffer; + rl_point = (int)(li->cursor - li->buffer); + rl_end = (int)(li->lastchar - li->buffer); } void @@ -1848,18 +2152,18 @@ rl_completion_matches(const char *str, rl_compentry_func_t *fun) len = 1; max = 10; - if ((list = malloc(max * sizeof(*list))) == NULL) + if ((list = el_malloc(max * sizeof(*list))) == NULL) return NULL; while ((match = (*fun)(str, (int)(len - 1))) != NULL) { + list[len++] = match; if (len == max) { char **nl; max += 10; - if ((nl = realloc(list, max * sizeof(*nl))) == NULL) + if ((nl = el_realloc(list, max * sizeof(*nl))) == NULL) goto out; list = nl; } - list[len++] = match; } if (len == 1) goto out; @@ -1883,7 +2187,7 @@ rl_completion_matches(const char *str, rl_compentry_func_t *fun) if ((list[0] = strdup(str)) == NULL) goto out; } else { - if ((list[0] = malloc(min + 1)) == NULL) + if ((list[0] = el_malloc((min + 1) * sizeof(*list[0]))) == NULL) goto out; (void)memcpy(list[0], list[1], min); list[0][min] = '\0'; @@ -1891,7 +2195,7 @@ rl_completion_matches(const char *str, rl_compentry_func_t *fun) return list; out: - free(list); + el_free(list); return NULL; } @@ -1921,10 +2225,21 @@ _rl_qsort_string_compare(char **s1, char **s2) return strcoll(*s1, *s2); } +HISTORY_STATE * +history_get_history_state(void) +{ + HISTORY_STATE *hs; + + if ((hs = el_malloc(sizeof(*hs))) == NULL) + return NULL; + hs->length = history_length; + return hs; +} + int /*ARGSUSED*/ rl_kill_text(int from __attribute__((__unused__)), - int to __attribute__((__unused__))) + int to __attribute__((__unused__))) { return 0; } @@ -1950,9 +2265,9 @@ rl_set_keymap(Keymap k __attribute__((__unused__))) int /*ARGSUSED*/ rl_generic_bind(int type __attribute__((__unused__)), - const char * keyseq __attribute__((__unused__)), - const char * data __attribute__((__unused__)), - Keymap k __attribute__((__unused__))) + const char * keyseq __attribute__((__unused__)), + const char * data __attribute__((__unused__)), + Keymap k __attribute__((__unused__))) { return 0; } @@ -1960,8 +2275,20 @@ rl_generic_bind(int type __attribute__((__unused__)), int /*ARGSUSED*/ rl_bind_key_in_map(int key __attribute__((__unused__)), - Function *fun __attribute__((__unused__)), - Keymap k __attribute__((__unused__))) + rl_command_func_t *fun __attribute__((__unused__)), + Keymap k __attribute__((__unused__))) +{ + return 0; +} + +/* unsupported, but needed by python */ +void +rl_cleanup_after_signal(void) +{ +} + +int +rl_on_new_line(void) { return 0; } |