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Annotation of src/usr.bin/tmux/cfg.c, Revision 1.39

1.39    ! nicm        1: /* $OpenBSD: cfg.c,v 1.38 2015/05/07 11:42:56 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
1.21      nicm       21: #include <ctype.h>
1.1       nicm       22: #include <errno.h>
                     23: #include <stdio.h>
1.15      nicm       24: #include <stdlib.h>
1.1       nicm       25: #include <string.h>
1.32      tobias     26: #include <util.h>
1.1       nicm       27:
                     28: #include "tmux.h"
                     29:
1.36      nicm       30: struct cmd_q            *cfg_cmd_q;
                     31: int                      cfg_finished;
                     32: int                      cfg_references;
                     33: char                   **cfg_causes;
                     34: u_int                    cfg_ncauses;
                     35: struct client           *cfg_client;
1.1       nicm       36:
1.28      nicm       37: int
                     38: load_cfg(const char *path, struct cmd_q *cmdq, char **cause)
1.1       nicm       39: {
1.7       deraadt    40:        FILE            *f;
1.32      tobias     41:        char             delim[3] = { '\\', '\\', '\0' };
                     42:        u_int            found;
                     43:        size_t           line = 0;
1.33      nicm       44:        char            *buf, *cause1, *p;
1.1       nicm       45:        struct cmd_list *cmdlist;
                     46:
1.29      nicm       47:        log_debug("loading %s", path);
1.1       nicm       48:        if ((f = fopen(path, "rb")) == NULL) {
1.28      nicm       49:                xasprintf(cause, "%s: %s", path, strerror(errno));
                     50:                return (-1);
1.25      nicm       51:        }
                     52:
1.32      tobias     53:        found = 0;
                     54:        while ((buf = fparseln(f, NULL, &line, delim, 0))) {
                     55:                log_debug("%s: %s", path, buf);
1.13      nicm       56:
1.21      nicm       57:                /* Skip empty lines. */
1.32      tobias     58:                p = buf;
                     59:                while (isspace((u_char) *p))
                     60:                        p++;
                     61:                if (*p == '\0') {
                     62:                        free(buf);
1.21      nicm       63:                        continue;
1.22      nicm       64:                }
1.21      nicm       65:
1.28      nicm       66:                /* Parse and run the command. */
1.32      tobias     67:                if (cmd_string_parse(p, &cmdlist, path, line, &cause1) != 0) {
                     68:                        free(buf);
1.28      nicm       69:                        if (cause1 == NULL)
1.1       nicm       70:                                continue;
1.33      nicm       71:                        cfg_add_cause("%s:%zu: %s", path, line, cause1);
1.28      nicm       72:                        free(cause1);
1.9       nicm       73:                        continue;
1.20      nicm       74:                }
1.32      tobias     75:                free(buf);
1.28      nicm       76:
1.1       nicm       77:                if (cmdlist == NULL)
                     78:                        continue;
1.34      nicm       79:                cmdq_append(cmdq, cmdlist, NULL);
1.1       nicm       80:                cmd_list_free(cmdlist);
1.28      nicm       81:                found++;
1.1       nicm       82:        }
                     83:        fclose(f);
1.25      nicm       84:
1.28      nicm       85:        return (found);
                     86: }
                     87:
                     88: void
                     89: cfg_default_done(unused struct cmd_q *cmdq)
                     90: {
                     91:        if (--cfg_references != 0)
                     92:                return;
                     93:        cfg_finished = 1;
1.18      nicm       94:
1.28      nicm       95:        if (!RB_EMPTY(&sessions))
                     96:                cfg_show_causes(RB_MIN(sessions, &sessions));
1.1       nicm       97:
1.28      nicm       98:        cmdq_free(cfg_cmd_q);
                     99:        cfg_cmd_q = NULL;
1.30      nicm      100:
                    101:        if (cfg_client != NULL) {
                    102:                /*
                    103:                 * The client command queue starts with client_exit set to 1 so
                    104:                 * only continue if not empty (that is, we have been delayed
                    105:                 * during configuration parsing for long enough that the
                    106:                 * MSG_COMMAND has arrived), else the client will exit before
                    107:                 * the MSG_COMMAND which might tell it not to.
                    108:                 */
                    109:                if (!TAILQ_EMPTY(&cfg_client->cmdq->queue))
                    110:                        cmdq_continue(cfg_client->cmdq);
1.39    ! nicm      111:                server_client_unref(cfg_client);
1.30      nicm      112:                cfg_client = NULL;
                    113:        }
1.33      nicm      114: }
                    115:
                    116: void
1.36      nicm      117: cfg_add_cause(const char *fmt, ...)
1.33      nicm      118: {
1.36      nicm      119:        va_list  ap;
                    120:        char    *msg;
1.33      nicm      121:
                    122:        va_start(ap, fmt);
                    123:        xvasprintf(&msg, fmt, ap);
1.38      nicm      124:        va_end(ap);
1.33      nicm      125:
1.35      nicm      126:        cfg_ncauses++;
                    127:        cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
                    128:        cfg_causes[cfg_ncauses - 1] = msg;
1.33      nicm      129: }
                    130:
                    131: void
                    132: cfg_print_causes(struct cmd_q *cmdq)
                    133: {
                    134:        u_int    i;
                    135:
1.35      nicm      136:        for (i = 0; i < cfg_ncauses; i++) {
                    137:                cmdq_print(cmdq, "%s", cfg_causes[i]);
                    138:                free(cfg_causes[i]);
1.33      nicm      139:        }
1.35      nicm      140:
                    141:        free(cfg_causes);
                    142:        cfg_causes = NULL;
1.37      nicm      143:        cfg_ncauses = 0;
1.17      nicm      144: }
                    145:
                    146: void
1.28      nicm      147: cfg_show_causes(struct session *s)
1.17      nicm      148: {
                    149:        struct window_pane      *wp;
                    150:        u_int                    i;
                    151:
1.35      nicm      152:        if (s == NULL || cfg_ncauses == 0)
1.17      nicm      153:                return;
                    154:        wp = s->curw->window->active;
                    155:
                    156:        window_pane_set_mode(wp, &window_copy_mode);
                    157:        window_copy_init_for_output(wp);
1.35      nicm      158:        for (i = 0; i < cfg_ncauses; i++) {
                    159:                window_copy_add(wp, "%s", cfg_causes[i]);
                    160:                free(cfg_causes[i]);
1.17      nicm      161:        }
1.35      nicm      162:
                    163:        free(cfg_causes);
                    164:        cfg_causes = NULL;
1.37      nicm      165:        cfg_ncauses = 0;
1.1       nicm      166: }