/* $OpenBSD: cfg.c,v 1.8 2009/11/26 21:37:13 nicm Exp $ */ /* * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <sys/types.h> #include <sys/stat.h> #include <errno.h> #include <stdio.h> #include <string.h> #include "tmux.h" /* * Config file parser. Pretty quick and simple, each line is parsed into a * argv array and executed as a command. */ void printflike2 cfg_print(struct cmd_ctx *, const char *, ...); void printflike2 cfg_error(struct cmd_ctx *, const char *, ...); char *cfg_cause; /* ARGSUSED */ void printflike2 cfg_print(unused struct cmd_ctx *ctx, unused const char *fmt, ...) { } /* ARGSUSED */ void printflike2 cfg_error(unused struct cmd_ctx *ctx, const char *fmt, ...) { va_list ap; va_start(ap, fmt); xvasprintf(&cfg_cause, fmt, ap); va_end(ap); } int load_cfg(const char *path, struct cmd_ctx *ctxin, char **cause) { FILE *f; u_int n; char *buf, *line, *ptr; size_t len; struct cmd_list *cmdlist; struct cmd_ctx ctx; if ((f = fopen(path, "rb")) == NULL) { xasprintf(cause, "%s: %s", path, strerror(errno)); return (1); } n = 0; line = NULL; while ((buf = fgetln(f, &len))) { if (buf[len - 1] == '\n') buf[len - 1] = '\0'; else { line = xrealloc(line, 1, len + 1); memcpy(line, buf, len); line[len] = '\0'; buf = line; } n++; if (cmd_string_parse(buf, &cmdlist, cause) != 0) { if (*cause == NULL) continue; goto error; } if (cmdlist == NULL) continue; cfg_cause = NULL; if (ctxin == NULL) { ctx.msgdata = NULL; ctx.curclient = NULL; ctx.cmdclient = NULL; } else { ctx.msgdata = ctxin->msgdata; ctx.curclient = ctxin->curclient; ctx.cmdclient = ctxin->cmdclient; } ctx.error = cfg_error; ctx.print = cfg_print; ctx.info = cfg_print; cfg_cause = NULL; cmd_list_exec(cmdlist, &ctx); cmd_list_free(cmdlist); if (cfg_cause != NULL) { *cause = cfg_cause; goto error; } } if (line != NULL) xfree(line); fclose(f); return (0); error: if (line != NULL) xfree(line); fclose(f); xasprintf(&ptr, "%s: %s at line %u", path, *cause, n); xfree(*cause); *cause = ptr; return (1); }