Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760192Ab2EKGlm (ORCPT ); Fri, 11 May 2012 02:41:42 -0400 Received: from terminus.zytor.com ([198.137.202.10]:57276 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753359Ab2EKGlk (ORCPT ); Fri, 11 May 2012 02:41:40 -0400 Date: Thu, 10 May 2012 23:41:18 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, paulus@samba.org, mingo@redhat.com, hpa@zytor.com, mingo@kernel.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@gmail.com, dsahern@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, mingo@redhat.com, paulus@samba.org, linux-kernel@vger.kernel.org, acme@redhat.com, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@gmail.com, dsahern@gmail.com, tglx@linutronix.de In-Reply-To: <1336367344-28071-5-git-send-email-namhyung.kim@lge.com> References: <1336367344-28071-5-git-send-email-namhyung.kim@lge.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf target: Introduce perf_target__parse_uid() Git-Commit-ID: dfe78adaaca90417ece98edbd3eb1c9661334406 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Thu, 10 May 2012 23:41:24 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5824 Lines: 193 Commit-ID: dfe78adaaca90417ece98edbd3eb1c9661334406 Gitweb: http://git.kernel.org/tip/dfe78adaaca90417ece98edbd3eb1c9661334406 Author: Namhyung Kim AuthorDate: Mon, 7 May 2012 14:09:01 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 7 May 2012 16:46:48 -0300 perf target: Introduce perf_target__parse_uid() Add and use the modern perf_target__parse_uid() and get rid of the old parse_target_uid(). Signed-off-by: Namhyung Kim Reviewed-by: David Ahern Cc: David Ahern Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1336367344-28071-5-git-send-email-namhyung.kim@lge.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 4 +--- tools/perf/builtin-top.c | 3 +-- tools/perf/util/target.c | 35 +++++++++++++++++++++++++++++++++++ tools/perf/util/target.h | 5 +++++ tools/perf/util/usage.c | 31 ------------------------------- tools/perf/util/util.h | 3 --- 6 files changed, 42 insertions(+), 39 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d165909..d26a279 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -886,9 +886,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) perf_target__validate(&rec->opts.target); - rec->opts.target.uid = parse_target_uid(rec->opts.target.uid_str); - if (rec->opts.target.uid_str != NULL && - rec->opts.target.uid == UINT_MAX - 1) + if (perf_target__parse_uid(&rec->opts.target) < 0) goto out_free_fd; if (perf_evlist__create_maps(evsel_list, &rec->opts.target) < 0) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index e40f86e..c9137ba 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1254,8 +1254,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) perf_target__validate(&top.target); - top.target.uid = parse_target_uid(top.target.uid_str); - if (top.target.uid_str != NULL && top.target.uid == UINT_MAX - 1) + if (perf_target__parse_uid(&top.target) < 0) goto out_delete_evlist; if (top.target.tid == 0 && top.target.pid == 0 && diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c index 5c59dcf..02a6bed 100644 --- a/tools/perf/util/target.c +++ b/tools/perf/util/target.c @@ -9,6 +9,8 @@ #include "target.h" #include "debug.h" +#include + enum perf_target_errno perf_target__validate(struct perf_target *target) { @@ -54,3 +56,36 @@ enum perf_target_errno perf_target__validate(struct perf_target *target) return ret; } + +enum perf_target_errno perf_target__parse_uid(struct perf_target *target) +{ + struct passwd pwd, *result; + char buf[1024]; + const char *str = target->uid_str; + + target->uid = UINT_MAX; + if (str == NULL) + return PERF_ERRNO_TARGET__SUCCESS; + + /* Try user name first */ + getpwnam_r(str, &pwd, buf, sizeof(buf), &result); + + if (result == NULL) { + /* + * The user name not found. Maybe it's a UID number. + */ + char *endptr; + int uid = strtol(str, &endptr, 10); + + if (*endptr != '\0') + return PERF_ERRNO_TARGET__INVALID_UID; + + getpwuid_r(uid, &pwd, buf, sizeof(buf), &result); + + if (result == NULL) + return PERF_ERRNO_TARGET__USER_NOT_FOUND; + } + + target->uid = result->pw_uid; + return PERF_ERRNO_TARGET__SUCCESS; +} diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h index eb0d210..d4aabda 100644 --- a/tools/perf/util/target.h +++ b/tools/perf/util/target.h @@ -33,9 +33,14 @@ enum perf_target_errno { PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM, PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM, + /* for perf_target__parse_uid() */ + PERF_ERRNO_TARGET__INVALID_UID, + PERF_ERRNO_TARGET__USER_NOT_FOUND, + __PERF_ERRNO_TARGET__END, }; enum perf_target_errno perf_target__validate(struct perf_target *target); +enum perf_target_errno perf_target__parse_uid(struct perf_target *target); #endif /* _PERF_TARGET_H */ diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c index e851abc..4007aca 100644 --- a/tools/perf/util/usage.c +++ b/tools/perf/util/usage.c @@ -82,34 +82,3 @@ void warning(const char *warn, ...) warn_routine(warn, params); va_end(params); } - -uid_t parse_target_uid(const char *str) -{ - struct passwd pwd, *result; - char buf[1024]; - - if (str == NULL) - return UINT_MAX; - - getpwnam_r(str, &pwd, buf, sizeof(buf), &result); - - if (result == NULL) { - char *endptr; - int uid = strtol(str, &endptr, 10); - - if (*endptr != '\0') { - ui__error("Invalid user %s\n", str); - return UINT_MAX - 1; - } - - getpwuid_r(uid, &pwd, buf, sizeof(buf), &result); - - if (result == NULL) { - ui__error("Problems obtaining information for user %s\n", - str); - return UINT_MAX - 1; - } - } - - return result->pw_uid; -} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 52be74c..27a11a7 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -74,7 +74,6 @@ #include #include #include -#include #include #include "../../../include/linux/magic.h" #include "types.h" @@ -249,8 +248,6 @@ struct perf_event_attr; void event_attr_init(struct perf_event_attr *attr); -uid_t parse_target_uid(const char *str); - #define _STR(x) #x #define STR(x) _STR(x) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/