Annotation of src/usr.bin/tmux/cmd-save-buffer.c, Revision 1.17
1.17 ! nicm 1: /* $OpenBSD: cmd-save-buffer.c,v 1.16 2012/07/11 07:10:15 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>
1.15 nicm 23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
25:
26: #include "tmux.h"
27:
28: /*
1.11 nicm 29: * Saves a paste buffer to a file.
1.1 nicm 30: */
31:
1.16 nicm 32: enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmd_ctx *);
1.1 nicm 33:
34: const struct cmd_entry cmd_save_buffer_entry = {
35: "save-buffer", "saveb",
1.10 nicm 36: "ab:", 1, 1,
1.13 nicm 37: "[-a] " CMD_BUFFER_USAGE " path",
1.10 nicm 38: 0,
39: NULL,
40: NULL,
41: cmd_save_buffer_exec
1.1 nicm 42: };
43:
1.16 nicm 44: enum cmd_retval
1.1 nicm 45: cmd_save_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
46: {
1.10 nicm 47: struct args *args = self->args;
1.17 ! nicm 48: struct client *c;
1.12 nicm 49: struct session *s;
1.1 nicm 50: struct paste_buffer *pb;
1.12 nicm 51: const char *path, *newpath, *wd;
1.10 nicm 52: char *cause;
53: int buffer;
1.8 nicm 54: mode_t mask;
55: FILE *f;
1.1 nicm 56:
1.10 nicm 57: if (!args_has(args, 'b')) {
1.9 nicm 58: if ((pb = paste_get_top(&global_buffers)) == NULL) {
1.1 nicm 59: ctx->error(ctx, "no buffers");
1.16 nicm 60: return (CMD_RETURN_ERROR);
1.1 nicm 61: }
62: } else {
1.10 nicm 63: buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
64: if (cause != NULL) {
65: ctx->error(ctx, "buffer %s", cause);
1.15 nicm 66: free(cause);
1.16 nicm 67: return (CMD_RETURN_ERROR);
1.10 nicm 68: }
69:
70: pb = paste_get_index(&global_buffers, buffer);
1.9 nicm 71: if (pb == NULL) {
1.10 nicm 72: ctx->error(ctx, "no buffer %d", buffer);
1.16 nicm 73: return (CMD_RETURN_ERROR);
1.1 nicm 74: }
75: }
76:
1.10 nicm 77: path = args->argv[0];
78: if (strcmp(path, "-") == 0) {
1.17 ! nicm 79: c = ctx->curclient;
! 80: if (c == NULL || !(c->flags & CLIENT_CONTROL))
! 81: c = ctx->cmdclient;
1.10 nicm 82: if (c == NULL) {
1.17 ! nicm 83: ctx->error(ctx, "can't write to stdout");
1.16 nicm 84: return (CMD_RETURN_ERROR);
1.7 nicm 85: }
1.14 nicm 86: evbuffer_add(c->stdout_data, pb->data, pb->size);
87: server_push_stdout(c);
1.7 nicm 88: } else {
1.17 ! nicm 89: c = ctx->cmdclient;
1.12 nicm 90: if (c != NULL)
91: wd = c->cwd;
92: else if ((s = cmd_current_session(ctx, 0)) != NULL) {
93: wd = options_get_string(&s->options, "default-path");
94: if (*wd == '\0')
95: wd = s->cwd;
96: } else
97: wd = NULL;
98: if (wd != NULL && *wd != '\0') {
99: newpath = get_full_path(wd, path);
100: if (newpath != NULL)
101: path = newpath;
102: }
103:
1.7 nicm 104: mask = umask(S_IRWXG | S_IRWXO);
1.10 nicm 105: if (args_has(self->args, 'a'))
106: f = fopen(path, "ab");
1.7 nicm 107: else
1.10 nicm 108: f = fopen(path, "wb");
1.7 nicm 109: umask(mask);
110: if (f == NULL) {
1.10 nicm 111: ctx->error(ctx, "%s: %s", path, strerror(errno));
1.16 nicm 112: return (CMD_RETURN_ERROR);
1.7 nicm 113: }
1.8 nicm 114: if (fwrite(pb->data, 1, pb->size, f) != pb->size) {
1.10 nicm 115: ctx->error(ctx, "%s: fwrite error", path);
1.8 nicm 116: fclose(f);
1.16 nicm 117: return (CMD_RETURN_ERROR);
1.8 nicm 118: }
119: fclose(f);
1.1 nicm 120: }
121:
1.16 nicm 122: return (CMD_RETURN_NORMAL);
1.1 nicm 123: }