URL: https://github.com/SSSD/sssd/pull/5750 Author: pbrezina Title: #5750: fix compilation warnings Action: synchronized
To pull the PR as Git branch: git remote add ghsssd https://github.com/SSSD/sssd git fetch ghsssd pull/5750/head:pr5750 git checkout pr5750
From e284006aebdc8f0163b28969a958b9557ed2808a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrez...@redhat.com> Date: Tue, 17 Aug 2021 12:26:31 +0200 Subject: [PATCH 1/2] remove deprecated talloc_autofree_context() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ``` /home/pbrezina/workspace/sssd/src/util/server.c: In function ‘server_setup’: /home/pbrezina/workspace/sssd/src/util/server.c:545:5: error: ‘talloc_autofree_context’ is deprecated [-Werror=deprecated-declarations] 545 | event_ctx = tevent_context_init(talloc_autofree_context()); | ^~~~~~~~~ In file included from /usr/include/ldb.h:50, from /home/pbrezina/workspace/sssd/src/util/server.c:33: /usr/include/talloc.h:1071:16: note: declared here 1071 | _PUBLIC_ void *talloc_autofree_context(void) _DEPRECATED_; | ^~~~~~~~~~~~~~~~~~~~~~~ ``` --- src/util/server.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/src/util/server.c b/src/util/server.c index 4fe29f96b8..e3133a61dd 100644 --- a/src/util/server.c +++ b/src/util/server.c @@ -38,6 +38,13 @@ #include <sys/prctl.h> #endif +static TALLOC_CTX *autofree_ctx; + +static void server_atexit(void) +{ + talloc_zfree(autofree_ctx); +} + /******************************************************************* Close the low 3 FDs and open dev/null in their place. ********************************************************************/ @@ -264,6 +271,7 @@ static void default_quit(struct tevent_context *ev, { struct main_context *ctx = talloc_get_type(private_data, struct main_context); talloc_free(ctx); + orderly_shutdown(0); } @@ -464,7 +472,14 @@ int server_setup(const char *name, int flags, char *pidfile_name; int cfg_debug_level = SSSDBG_INVALID; - debug_prg_name = strdup(name); + autofree_ctx = talloc_named_const(NULL, 0, "autofree_context"); + if (autofree_ctx == NULL) { + return ENOMEM; + } + + atexit(server_atexit); + + debug_prg_name = talloc_strdup(autofree_ctx, name); if (!debug_prg_name) { return ENOMEM; } @@ -542,7 +557,7 @@ int server_setup(const char *name, int flags, /* the event context is the top level structure. * Everything else should hang off that */ - event_ctx = tevent_context_init(talloc_autofree_context()); + event_ctx = tevent_context_init(autofree_ctx); if (event_ctx == NULL) { DEBUG(SSSDBG_FATAL_FAILURE, "The event context initialization failed\n"); From 1944174d47711a26b2a8c3e6024b4fc056d5db0d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrez...@redhat.com> Date: Tue, 17 Aug 2021 12:24:39 +0200 Subject: [PATCH 2/2] fix warnings around sss_getenv() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduced in - 44525a9995c775ac284a6203d0e505dc4bf0d459 - c1dd121142fb22648793a38e45257b348d658460 ``` /home/pbrezina/workspace/sssd/src/db/sysdb_init.c: In function ‘sysdb_ldb_connect’: /home/pbrezina/workspace/sssd/src/db/sysdb_init.c:82:49: error: passing argument 3 of ‘sss_getenv’ from incompatible pointer type [-Werror=incompatible-pointer-types] 82 | ret = sss_getenv(tmp_ctx, LDB_MODULES_PATH, &mod_path); | ^~~~~~~~~ | | | const char ** In file included from /home/pbrezina/workspace/sssd/src/db/sysdb_init.c:23: /home/pbrezina/workspace/sssd/src/util/util.h:806:75: note: expected ‘char **’ but argument is of type ‘const char **’ 806 | errno_t sss_getenv(TALLOC_CTX *mem_ctx, const char *variable_name, char **_value); /home/pbrezina/workspace/sssd/src/providers/files/files_init.c: In function ‘files_init_file_sources’: /home/pbrezina/workspace/sssd/src/providers/files/files_init.c:61:26: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] 61 | dfl_passwd_files = DEFAULT_PASSWD_FILE; | ^ /home/pbrezina/workspace/sssd/src/providers/files/files_init.c:77:25: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] 77 | env_group_files = DEFAULT_GROUP_FILE; | ^ ``` --- src/db/sysdb_init.c | 4 ++-- src/providers/files/files_init.c | 14 ++++++-------- src/util/util.c | 11 +++++++---- src/util/util.h | 8 +++++++- 4 files changed, 22 insertions(+), 15 deletions(-) diff --git a/src/db/sysdb_init.c b/src/db/sysdb_init.c index e84d76129d..c7b8885cd6 100644 --- a/src/db/sysdb_init.c +++ b/src/db/sysdb_init.c @@ -54,7 +54,7 @@ errno_t sysdb_ldb_connect(TALLOC_CTX *mem_ctx, TALLOC_CTX *tmp_ctx = NULL; errno_t ret; struct ldb_context *ldb; - const char *mod_path = NULL; + char *mod_path = NULL; tmp_ctx = talloc_new(NULL); if (tmp_ctx == NULL) { @@ -79,7 +79,7 @@ errno_t sysdb_ldb_connect(TALLOC_CTX *mem_ctx, goto done; } - ret = sss_getenv(tmp_ctx, LDB_MODULES_PATH, &mod_path); + ret = sss_getenv(tmp_ctx, LDB_MODULES_PATH, NULL, &mod_path); if (ret == EOK) { DEBUG(SSSDBG_TRACE_ALL, "Setting ldb module path to [%s].\n", mod_path); ldb_set_modules_dir(ldb, mod_path); diff --git a/src/providers/files/files_init.c b/src/providers/files/files_init.c index f4a522b318..54f3600a2f 100644 --- a/src/providers/files/files_init.c +++ b/src/providers/files/files_init.c @@ -51,15 +51,14 @@ static errno_t files_init_file_sources(TALLOC_CTX *mem_ctx, goto done; } - ret = sss_getenv(tmp_ctx, "SSS_FILES_PASSWD", &dfl_passwd_files); + ret = sss_getenv(tmp_ctx, "SSS_FILES_PASSWD", DEFAULT_PASSWD_FILE, + &dfl_passwd_files); if (ret == EOK) { sss_log(SSS_LOG_ALERT, "Defaulting to %s for the passwd file, " "this should only be used for testing!\n", dfl_passwd_files); - } else if (ret == ENOENT) { - dfl_passwd_files = DEFAULT_PASSWD_FILE; - } else { + } else if (ret != ENOENT) { sss_log(SSS_LOG_ALERT, "sss_getenv() failed"); goto done; } @@ -67,15 +66,14 @@ static errno_t files_init_file_sources(TALLOC_CTX *mem_ctx, "Using passwd file: [%s].\n", dfl_passwd_files); - ret = sss_getenv(tmp_ctx, "SSS_FILES_GROUP", &env_group_files); + ret = sss_getenv(tmp_ctx, "SSS_FILES_GROUP", DEFAULT_GROUP_FILE, + &env_group_files); if (ret == EOK) { sss_log(SSS_LOG_ALERT, "Defaulting to %s for the group file, " "this should only be used for testing!\n", env_group_files); - } else if (ret == ENOENT) { - env_group_files = DEFAULT_GROUP_FILE; - } else { + } else if (ret != ENOENT) { sss_log(SSS_LOG_ALERT, "sss_getenv() failed"); goto done; } diff --git a/src/util/util.c b/src/util/util.c index ea1ca53e03..7e29237738 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1067,17 +1067,20 @@ bool is_valid_domain_name(const char *domain) return true; } -errno_t sss_getenv(TALLOC_CTX *mem_ctx, const char *variable_name, char **_value) +errno_t sss_getenv(TALLOC_CTX *mem_ctx, + const char *variable_name, + const char *default_value, + char **_value) { char *value = getenv(variable_name); - if (value == NULL) { + if (value == NULL && default_value == NULL) { return ENOENT; } - *_value = talloc_strdup(mem_ctx, value); + *_value = talloc_strdup(mem_ctx, value != NULL ? value : default_value); if (*_value == NULL) { return ENOMEM; } - return EOK; + return value != NULL ? EOK : ENOENT; } diff --git a/src/util/util.h b/src/util/util.h index d8f3e5769a..c5ecba72fa 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -803,6 +803,12 @@ errno_t create_preauth_indicator(void); #define N_ELEMENTS(arr) (sizeof(arr) / sizeof(arr[0])) #endif -errno_t sss_getenv(TALLOC_CTX *mem_ctx, const char *variable_name, char **_value); +/* If variable is not set, it stores a copy of default_value (if not NULL) + * in _value but returns ENOENT so the information is propagated to the caller. + */ +errno_t sss_getenv(TALLOC_CTX *mem_ctx, + const char *variable_name, + const char *default_value, + char **_value); #endif /* __SSSD_UTIL_H__ */
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