1 /* $OpenBSD: cmd-save-buffer.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */ 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 /* 28 * Saves a session paste buffer to a file. 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", 35 "[-a] " CMD_BUFFER_SESSION_USAGE " path", 36 CMD_AFLAG|CMD_ARG1, 37 cmd_buffer_init, 38 cmd_buffer_parse, 39 cmd_save_buffer_exec, 40 cmd_buffer_send, 41 cmd_buffer_recv, 42 cmd_buffer_free, 43 cmd_buffer_print 44 }; 45 46 int 47 cmd_save_buffer_exec(struct cmd *self, struct cmd_ctx *ctx) 48 { 49 struct cmd_buffer_data *data = self->data; 50 struct session *s; 51 struct paste_buffer *pb; 52 mode_t mask; 53 FILE *f; 54 55 if ((s = cmd_find_session(ctx, data->target)) == NULL) 56 return (-1); 57 58 if (data->buffer == -1) { 59 if ((pb = paste_get_top(&s->buffers)) == NULL) { 60 ctx->error(ctx, "no buffers"); 61 return (-1); 62 } 63 } else { 64 if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) { 65 ctx->error(ctx, "no buffer %d", data->buffer); 66 return (-1); 67 } 68 } 69 70 mask = umask(S_IRWXG | S_IRWXO); 71 if (data->flags & CMD_AFLAG) 72 f = fopen(data->arg, "ab"); 73 else 74 f = fopen(data->arg, "wb"); 75 if (f == NULL) { 76 ctx->error(ctx, "%s: %s", data->arg, strerror(errno)); 77 return (-1); 78 } 79 80 if (fwrite(pb->data, 1, strlen(pb->data), f) != strlen(pb->data)) { 81 ctx->error(ctx, "%s: fwrite error", data->arg); 82 fclose(f); 83 return (-1); 84 } 85 86 fclose(f); 87 umask(mask); 88 89 return (0); 90 } 91