diff --git a/readconf.c b/readconf.c index e79f3e614acb..36265e431da5 100644 --- a/readconf.c +++ b/readconf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: readconf.c,v 1.195 2013/02/17 23:16:57 dtucker Exp $ */ +/* $OpenBSD: readconf.c,v 1.196 2013/02/22 04:45:08 dtucker Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland @@ -373,7 +373,7 @@ parse_token(const char *cp, const char *filename, int linenum) int process_config_line(Options *options, const char *host, char *line, const char *filename, int linenum, - int *activep) + int *activep, int userconfig) { char *s, **charptr, *endofnumber, *keyword, *arg, *arg2; char **cpptr, fwdarg[256]; @@ -606,7 +606,7 @@ parse_yesnoask: if (*intptr >= SSH_MAX_IDENTITY_FILES) fatal("%.200s line %d: Too many identity files specified (max %d).", filename, linenum, SSH_MAX_IDENTITY_FILES); - add_identity_file(options, NULL, arg, 1); + add_identity_file(options, NULL, arg, userconfig); } break; @@ -1093,7 +1093,7 @@ parse_int: int read_config_file(const char *filename, const char *host, Options *options, - int checkperm) + int flags) { FILE *f; char line[1024]; @@ -1103,7 +1103,7 @@ read_config_file(const char *filename, const char *host, Options *options, if ((f = fopen(filename, "r")) == NULL) return 0; - if (checkperm) { + if (flags & SSHCONF_CHECKPERM) { struct stat sb; if (fstat(fileno(f), &sb) == -1) @@ -1124,7 +1124,8 @@ read_config_file(const char *filename, const char *host, Options *options, while (fgets(line, sizeof(line), f)) { /* Update line number counter. */ linenum++; - if (process_config_line(options, host, line, filename, linenum, &active) != 0) + if (process_config_line(options, host, line, filename, linenum, + &active, flags & SSHCONF_USERCONF) != 0) bad_options++; } fclose(f); @@ -1298,30 +1299,17 @@ fill_default_options(Options * options) options->protocol = SSH_PROTO_2; if (options->num_identity_files == 0) { if (options->protocol & SSH_PROTO_1) { - len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_IDENTITY, 0); } if (options->protocol & SSH_PROTO_2) { - len = 2 + strlen(_PATH_SSH_CLIENT_ID_RSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_RSA); - - len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_RSA, 0); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_DSA, 0); #ifdef OPENSSL_HAS_ECC - len = 2 + strlen(_PATH_SSH_CLIENT_ID_ECDSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_ECDSA); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_ECDSA, 0); #endif } } diff --git a/readconf.h b/readconf.h index 35f596626545..841648906c8d 100644 --- a/readconf.h +++ b/readconf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: readconf.h,v 1.92 2013/02/17 23:16:57 dtucker Exp $ */ +/* $OpenBSD: readconf.h,v 1.93 2013/02/22 04:45:09 dtucker Exp $ */ /* * Author: Tatu Ylonen @@ -149,13 +149,17 @@ typedef struct { #define REQUEST_TTY_YES 2 #define REQUEST_TTY_FORCE 3 +#define SSHCONF_CHECKPERM 1 /* check permissions on config file */ +#define SSHCONF_USERCONF 2 /* user provided config file not system */ + void initialize_options(Options *); void fill_default_options(Options *); int read_config_file(const char *, const char *, Options *, int); int parse_forward(Forward *, const char *, int, int); int -process_config_line(Options *, const char *, char *, const char *, int, int *); +process_config_line(Options *, const char *, char *, const char *, int, int *, + int); void add_local_forward(Options *, const Forward *); void add_remote_forward(Options *, const Forward *); diff --git a/ssh.c b/ssh.c index 8a7aea09f9ce..5ec89f2cc02e 100644 --- a/ssh.c +++ b/ssh.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh.c,v 1.371 2013/02/17 23:16:57 dtucker Exp $ */ +/* $OpenBSD: ssh.c,v 1.373 2013/02/22 22:09:01 djm Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland @@ -579,7 +579,8 @@ main(int ac, char **av) dummy = 1; line = xstrdup(optarg); if (process_config_line(&options, host ? host : "", - line, "command-line", 0, &dummy) != 0) + line, "command-line", 0, &dummy, SSHCONF_USERCONF) + != 0) exit(255); xfree(line); break; @@ -673,14 +674,15 @@ main(int ac, char **av) * file if the user specifies a config file on the command line. */ if (config != NULL) { - if (!read_config_file(config, host, &options, 0)) + if (!read_config_file(config, host, &options, SSHCONF_USERCONF)) fatal("Can't open user config file %.100s: " "%.100s", config, strerror(errno)); } else { r = snprintf(buf, sizeof buf, "%s/%s", pw->pw_dir, _PATH_SSH_USER_CONFFILE); if (r > 0 && (size_t)r < sizeof(buf)) - (void)read_config_file(buf, host, &options, 1); + (void)read_config_file(buf, host, &options, + SSHCONF_CHECKPERM|SSHCONF_USERCONF); /* Read systemwide configuration file after user config. */ (void)read_config_file(_PATH_HOST_CONFIG_FILE, host, @@ -1534,7 +1536,8 @@ load_public_identity_files(void) fatal("load_public_identity_files: gethostname: %s", strerror(errno)); for (i = 0; i < options.num_identity_files; i++) { - if (n_ids >= SSH_MAX_IDENTITY_FILES) { + if (n_ids >= SSH_MAX_IDENTITY_FILES || + strcasecmp(options.identity_files[i], "none") == 0) { xfree(options.identity_files[i]); continue; }