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Annotation of src/usr.bin/tmux/cmd-source-file.c, Revision 1.2

1.2     ! nicm        1: /* $OpenBSD: cmd-source-file.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2008 Tiago Cunha <me@tiagocunha.org>
                      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:
                     21: #include "tmux.h"
                     22:
                     23: /*
                     24:  * Sources a configuration file.
                     25:  */
                     26:
                     27: int    cmd_source_file_parse(struct cmd *, int, char **, char **);
                     28: int    cmd_source_file_exec(struct cmd *, struct cmd_ctx *);
                     29: void   cmd_source_file_send(struct cmd *, struct buffer *);
                     30: void   cmd_source_file_recv(struct cmd *, struct buffer *);
                     31: void   cmd_source_file_free(struct cmd *);
                     32: void   cmd_source_file_init(struct cmd *, int);
                     33: size_t cmd_source_file_print(struct cmd *, char *, size_t);
                     34:
                     35: struct cmd_source_file_data {
                     36:        char *path;
                     37: };
                     38:
                     39: const struct cmd_entry cmd_source_file_entry = {
                     40:        "source-file", "source",
                     41:        "path",
1.2     ! nicm       42:        0, 0,
1.1       nicm       43:        cmd_source_file_init,
                     44:        cmd_source_file_parse,
                     45:        cmd_source_file_exec,
                     46:        cmd_source_file_send,
                     47:        cmd_source_file_recv,
                     48:        cmd_source_file_free,
                     49:        cmd_source_file_print
                     50: };
                     51:
                     52: void
                     53: cmd_source_file_init(struct cmd *self, unused int arg)
                     54: {
                     55:        struct cmd_source_file_data     *data;
                     56:
                     57:        self->data = data = xmalloc(sizeof *data);
                     58:        data->path = NULL;
                     59: }
                     60:
                     61: int
                     62: cmd_source_file_parse(struct cmd *self, int argc, char **argv, char **cause)
                     63: {
                     64:        struct cmd_source_file_data     *data;
                     65:        int                              opt;
                     66:
                     67:        self->entry->init(self, 0);
                     68:        data = self->data;
                     69:
                     70:        while ((opt = getopt(argc, argv, "")) != -1) {
                     71:                switch (opt) {
                     72:                default:
                     73:                        goto usage;
                     74:                }
                     75:        }
                     76:        argc -= optind;
                     77:        argv += optind;
                     78:        if (argc != 1)
                     79:                goto usage;
                     80:
                     81:        data->path = xstrdup(argv[0]);
                     82:        return (0);
                     83:
                     84: usage:
                     85:        xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
                     86:
                     87:        self->entry->free(self);
                     88:        return (-1);
                     89: }
                     90:
                     91: int
                     92: cmd_source_file_exec(struct cmd *self, struct cmd_ctx *ctx)
                     93: {
                     94:        struct cmd_source_file_data     *data = self->data;
                     95:        char                            *cause;
                     96:
                     97:        if (load_cfg(data->path, &cause) != 0) {
                     98:                ctx->error(ctx, "%s", cause);
                     99:                xfree(cause);
                    100:                return (-1);
                    101:        }
                    102:
                    103:        return (0);
                    104: }
                    105:
                    106: void
                    107: cmd_source_file_send(struct cmd *self, struct buffer *b)
                    108: {
                    109:        struct cmd_source_file_data     *data = self->data;
                    110:
                    111:        buffer_write(b, data, sizeof *data);
                    112:        cmd_send_string(b, data->path);
                    113: }
                    114:
                    115: void
                    116: cmd_source_file_recv(struct cmd *self, struct buffer *b)
                    117: {
                    118:        struct cmd_source_file_data     *data;
                    119:
                    120:        self->data = data = xmalloc(sizeof *data);
                    121:        buffer_read(b, data, sizeof *data);
                    122:        data->path = cmd_recv_string(b);
                    123: }
                    124:
                    125: void
                    126: cmd_source_file_free(struct cmd *self)
                    127: {
                    128:        struct cmd_source_file_data     *data = self->data;
                    129:
                    130:        if (data->path != NULL)
                    131:                xfree(data->path);
                    132:        xfree(data);
                    133: }
                    134:
                    135: size_t
                    136: cmd_source_file_print(struct cmd *self, char *buf, size_t len)
                    137: {
                    138:        struct cmd_source_file_data     *data = self->data;
                    139:        size_t                          off = 0;
                    140:
                    141:        off += xsnprintf(buf, len, "%s", self->entry->name);
                    142:        if (data == NULL)
                    143:                return (off);
                    144:        if (off < len && data->path != NULL)
                    145:                off += cmd_prarg(buf + off, len - off, " ", data->path);
                    146:        return (off);
                    147: }