From dfe78adaaca90417ece98edbd3eb1c9661334406 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 7 May 2012 14:09:01 +0900 Subject: 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/util/target.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'tools/perf/util/target.c') 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; +} -- cgit v1.2.1