diff options
Diffstat (limited to 'tools/perf/util/target.c')
| -rw-r--r-- | tools/perf/util/target.c | 35 |
1 files changed, 35 insertions, 0 deletions
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 <pwd.h> + 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; +} |