From: Namhyung Kim Date: Mon, 7 May 2012 05:09:01 +0000 (+0900) Subject: perf target: Introduce perf_target__parse_uid() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dfe78adaaca90417ece98edbd3eb1c9661334406;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git 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 --- diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d16590942cec..d26a279796d9 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 e40f86ea3641..c9137ba580d9 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 5c59dcfc8f8d..02a6bedb69a3 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 eb0d2101154a..d4aabdaba42a 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 e851abc22ccc..4007aca8e0ca 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 52be74c359d3..27a11a78ad39 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)