Annotation of src/usr.bin/tmux/cmd-save-buffer.c, Revision 1.46
1.46 ! nicm 1: /* $OpenBSD: cmd-save-buffer.c,v 1.45 2018/07/31 13:06:44 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 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: #include <sys/stat.h>
21:
22: #include <errno.h>
1.21 nicm 23: #include <fcntl.h>
1.15 nicm 24: #include <stdlib.h>
1.1 nicm 25: #include <string.h>
1.21 nicm 26: #include <unistd.h>
1.18 nicm 27: #include <vis.h>
1.1 nicm 28:
29: #include "tmux.h"
30:
31: /*
1.11 nicm 32: * Saves a paste buffer to a file.
1.1 nicm 33: */
34:
1.40 nicm 35: static enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmdq_item *);
1.1 nicm 36:
37: const struct cmd_entry cmd_save_buffer_entry = {
1.36 nicm 38: .name = "save-buffer",
39: .alias = "saveb",
40:
41: .args = { "ab:", 1, 1 },
42: .usage = "[-a] " CMD_BUFFER_USAGE " path",
43:
1.39 nicm 44: .flags = CMD_AFTERHOOK,
1.36 nicm 45: .exec = cmd_save_buffer_exec
1.1 nicm 46: };
47:
1.18 nicm 48: const struct cmd_entry cmd_show_buffer_entry = {
1.36 nicm 49: .name = "show-buffer",
50: .alias = "showb",
51:
52: .args = { "b:", 0, 0 },
53: .usage = CMD_BUFFER_USAGE,
54:
1.39 nicm 55: .flags = CMD_AFTERHOOK,
1.36 nicm 56: .exec = cmd_save_buffer_exec
1.18 nicm 57: };
58:
1.38 nicm 59: static enum cmd_retval
1.40 nicm 60: cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 61: {
1.10 nicm 62: struct args *args = self->args;
1.44 nicm 63: struct client *c = cmd_find_client(item, NULL, 1);
64: struct session *s = item->target.s;
65: struct winlink *wl = item->target.wl;
66: struct window_pane *wp = item->target.wp;
1.1 nicm 67: struct paste_buffer *pb;
1.44 nicm 68: const char *bufname, *bufdata, *start, *end, *flags;
69: char *msg, *path, *file;
1.29 nicm 70: size_t size, used, msglen, bufsize;
1.8 nicm 71: FILE *f;
1.1 nicm 72:
1.10 nicm 73: if (!args_has(args, 'b')) {
1.29 nicm 74: if ((pb = paste_get_top(NULL)) == NULL) {
1.40 nicm 75: cmdq_error(item, "no buffers");
1.16 nicm 76: return (CMD_RETURN_ERROR);
1.1 nicm 77: }
78: } else {
1.25 nicm 79: bufname = args_get(args, 'b');
80: pb = paste_get_name(bufname);
1.9 nicm 81: if (pb == NULL) {
1.40 nicm 82: cmdq_error(item, "no buffer %s", bufname);
1.16 nicm 83: return (CMD_RETURN_ERROR);
1.1 nicm 84: }
85: }
1.29 nicm 86: bufdata = paste_buffer_data(pb, &bufsize);
1.1 nicm 87:
1.18 nicm 88: if (self->entry == &cmd_show_buffer_entry)
1.44 nicm 89: path = xstrdup("-");
1.18 nicm 90: else
1.44 nicm 91: path = format_single(item, args->argv[0], c, s, wl, wp);
1.10 nicm 92: if (strcmp(path, "-") == 0) {
1.44 nicm 93: free(path);
94: c = item->client;
1.19 nicm 95: if (c == NULL) {
1.40 nicm 96: cmdq_error(item, "can't write to stdout");
1.19 nicm 97: return (CMD_RETURN_ERROR);
98: }
99: if (c->session == NULL || (c->flags & CLIENT_CONTROL))
1.18 nicm 100: goto do_stdout;
1.19 nicm 101: goto do_print;
1.18 nicm 102: }
103:
1.31 nicm 104: flags = "wb";
105: if (args_has(self->args, 'a'))
106: flags = "ab";
107:
1.46 ! nicm 108: file = server_client_get_path(item->client, path);
1.45 nicm 109: free(path);
110:
1.42 nicm 111: f = fopen(file, flags);
1.18 nicm 112: if (f == NULL) {
1.42 nicm 113: cmdq_error(item, "%s: %s", file, strerror(errno));
114: free(file);
1.18 nicm 115: return (CMD_RETURN_ERROR);
116: }
1.31 nicm 117:
1.29 nicm 118: if (fwrite(bufdata, 1, bufsize, f) != bufsize) {
1.42 nicm 119: cmdq_error(item, "%s: write error", file);
1.18 nicm 120: fclose(f);
1.43 nicm 121: free(file);
1.18 nicm 122: return (CMD_RETURN_ERROR);
123: }
1.42 nicm 124:
1.18 nicm 125: fclose(f);
1.42 nicm 126: free(file);
1.18 nicm 127:
128: return (CMD_RETURN_NORMAL);
129:
130: do_stdout:
1.29 nicm 131: evbuffer_add(c->stdout_data, bufdata, bufsize);
1.34 nicm 132: server_client_push_stdout(c);
1.18 nicm 133: return (CMD_RETURN_NORMAL);
134:
135: do_print:
1.29 nicm 136: if (bufsize > (INT_MAX / 4) - 1) {
1.40 nicm 137: cmdq_error(item, "buffer too big");
1.18 nicm 138: return (CMD_RETURN_ERROR);
139: }
140: msg = NULL;
1.12 nicm 141:
1.18 nicm 142: used = 0;
1.29 nicm 143: while (used != bufsize) {
144: start = bufdata + used;
145: end = memchr(start, '\n', bufsize - used);
1.18 nicm 146: if (end != NULL)
147: size = end - start;
1.7 nicm 148: else
1.29 nicm 149: size = bufsize - used;
1.18 nicm 150:
151: msglen = size * 4 + 1;
1.26 nicm 152: msg = xrealloc(msg, msglen);
1.18 nicm 153:
154: strvisx(msg, start, size, VIS_OCTAL|VIS_TAB);
1.40 nicm 155: cmdq_print(item, "%s", msg);
1.18 nicm 156:
157: used += size + (end != NULL);
1.1 nicm 158: }
159:
1.18 nicm 160: free(msg);
1.16 nicm 161: return (CMD_RETURN_NORMAL);
1.1 nicm 162: }
![[BACK]](/icons/back.gif){kind=icon}
Return to cmd-save-buffer.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux