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Annotation of src/usr.bin/tmux/cfg.c, Revision 1.32

1.32    ! tobias      1: /* $OpenBSD: cfg.c,v 1.31 2014/04/17 11:38:35 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:
1.28      nicm       30: struct cmd_q           *cfg_cmd_q;
1.18      nicm       31: int                     cfg_finished;
1.28      nicm       32: int                     cfg_references;
1.18      nicm       33: struct causelist        cfg_causes;
1.30      nicm       34: struct client          *cfg_client;
1.1       nicm       35:
1.28      nicm       36: int
                     37: load_cfg(const char *path, struct cmd_q *cmdq, char **cause)
1.1       nicm       38: {
1.7       deraadt    39:        FILE            *f;
1.32    ! tobias     40:        char             delim[3] = { '\\', '\\', '\0' };
        !            41:        u_int            found;
        !            42:        size_t           line = 0;
        !            43:        char            *buf, *cause1, *msg, *p;
1.1       nicm       44:        struct cmd_list *cmdlist;
                     45:
1.29      nicm       46:        log_debug("loading %s", path);
1.1       nicm       47:        if ((f = fopen(path, "rb")) == NULL) {
1.28      nicm       48:                xasprintf(cause, "%s: %s", path, strerror(errno));
                     49:                return (-1);
1.25      nicm       50:        }
                     51:
1.32    ! tobias     52:        found = 0;
        !            53:        while ((buf = fparseln(f, NULL, &line, delim, 0))) {
        !            54:                log_debug("%s: %s", path, buf);
1.13      nicm       55:
1.21      nicm       56:                /* Skip empty lines. */
1.32    ! tobias     57:                p = buf;
        !            58:                while (isspace((u_char) *p))
        !            59:                        p++;
        !            60:                if (*p == '\0') {
        !            61:                        free(buf);
1.21      nicm       62:                        continue;
1.22      nicm       63:                }
1.21      nicm       64:
1.28      nicm       65:                /* Parse and run the command. */
1.32    ! tobias     66:                if (cmd_string_parse(p, &cmdlist, path, line, &cause1) != 0) {
        !            67:                        free(buf);
1.28      nicm       68:                        if (cause1 == NULL)
1.1       nicm       69:                                continue;
1.32    ! tobias     70:                        xasprintf(&msg, "%s:%zu: %s", path, line, cause1);
1.28      nicm       71:                        ARRAY_ADD(&cfg_causes, msg);
                     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;
1.28      nicm       79:                cmdq_append(cmdq, cmdlist);
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);
                    111:                cfg_client->references--;
                    112:                cfg_client = NULL;
                    113:        }
1.17      nicm      114: }
                    115:
                    116: void
1.28      nicm      117: cfg_show_causes(struct session *s)
1.17      nicm      118: {
                    119:        struct window_pane      *wp;
                    120:        char                    *cause;
                    121:        u_int                    i;
                    122:
                    123:        if (s == NULL || ARRAY_EMPTY(&cfg_causes))
                    124:                return;
                    125:        wp = s->curw->window->active;
                    126:
                    127:        window_pane_set_mode(wp, &window_copy_mode);
                    128:        window_copy_init_for_output(wp);
                    129:        for (i = 0; i < ARRAY_LENGTH(&cfg_causes); i++) {
                    130:                cause = ARRAY_ITEM(&cfg_causes, i);
                    131:                window_copy_add(wp, "%s", cause);
                    132:                free(cause);
                    133:        }
                    134:        ARRAY_FREE(&cfg_causes);
1.1       nicm      135: }