Annotation of src/usr.bin/tmux/cmd-save-buffer.c, Revision 1.14
1.14 ! nicm 1: /* $OpenBSD: cmd-save-buffer.c,v 1.13 2012/03/21 19:16:07 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>
23: #include <string.h>
24:
25: #include "tmux.h"
26:
27: /*
1.11 nicm 28: * Saves a paste buffer to a file.
1.1 nicm 29: */
30:
31: int cmd_save_buffer_exec(struct cmd *, struct cmd_ctx *);
32:
33: const struct cmd_entry cmd_save_buffer_entry = {
34: "save-buffer", "saveb",
1.10 nicm 35: "ab:", 1, 1,
1.13 nicm 36: "[-a] " CMD_BUFFER_USAGE " path",
1.10 nicm 37: 0,
38: NULL,
39: NULL,
40: cmd_save_buffer_exec
1.1 nicm 41: };
42:
43: int
44: cmd_save_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
45: {
1.10 nicm 46: struct args *args = self->args;
47: struct client *c = ctx->cmdclient;
1.12 nicm 48: struct session *s;
1.1 nicm 49: struct paste_buffer *pb;
1.12 nicm 50: const char *path, *newpath, *wd;
1.10 nicm 51: char *cause;
52: int buffer;
1.8 nicm 53: mode_t mask;
54: FILE *f;
1.1 nicm 55:
1.10 nicm 56: if (!args_has(args, 'b')) {
1.9 nicm 57: if ((pb = paste_get_top(&global_buffers)) == NULL) {
1.1 nicm 58: ctx->error(ctx, "no buffers");
59: return (-1);
60: }
61: } else {
1.10 nicm 62: buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
63: if (cause != NULL) {
64: ctx->error(ctx, "buffer %s", cause);
65: xfree(cause);
66: return (-1);
67: }
68:
69: pb = paste_get_index(&global_buffers, buffer);
1.9 nicm 70: if (pb == NULL) {
1.10 nicm 71: ctx->error(ctx, "no buffer %d", buffer);
1.1 nicm 72: return (-1);
73: }
74: }
75:
1.10 nicm 76: path = args->argv[0];
77: if (strcmp(path, "-") == 0) {
78: if (c == NULL) {
79: ctx->error(ctx, "%s: can't write to stdout", path);
1.7 nicm 80: return (-1);
81: }
1.14 ! nicm 82: evbuffer_add(c->stdout_data, pb->data, pb->size);
! 83: server_push_stdout(c);
1.7 nicm 84: } else {
1.12 nicm 85: if (c != NULL)
86: wd = c->cwd;
87: else if ((s = cmd_current_session(ctx, 0)) != NULL) {
88: wd = options_get_string(&s->options, "default-path");
89: if (*wd == '\0')
90: wd = s->cwd;
91: } else
92: wd = NULL;
93: if (wd != NULL && *wd != '\0') {
94: newpath = get_full_path(wd, path);
95: if (newpath != NULL)
96: path = newpath;
97: }
98:
1.7 nicm 99: mask = umask(S_IRWXG | S_IRWXO);
1.10 nicm 100: if (args_has(self->args, 'a'))
101: f = fopen(path, "ab");
1.7 nicm 102: else
1.10 nicm 103: f = fopen(path, "wb");
1.7 nicm 104: umask(mask);
105: if (f == NULL) {
1.10 nicm 106: ctx->error(ctx, "%s: %s", path, strerror(errno));
1.7 nicm 107: return (-1);
108: }
1.8 nicm 109: if (fwrite(pb->data, 1, pb->size, f) != pb->size) {
1.10 nicm 110: ctx->error(ctx, "%s: fwrite error", path);
1.8 nicm 111: fclose(f);
112: return (-1);
113: }
114: fclose(f);
1.1 nicm 115: }
116:
117: return (0);
118: }