diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/internal/util/parse.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/internal/util/parse.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/procfs/internal/util/parse.go b/vendor/github.com/prometheus/procfs/internal/util/parse.go index 14272dc78..5a7d2df06 100644 --- a/vendor/github.com/prometheus/procfs/internal/util/parse.go +++ b/vendor/github.com/prometheus/procfs/internal/util/parse.go @@ -14,6 +14,7 @@ package util import ( + "errors" "os" "strconv" "strings" @@ -110,3 +111,16 @@ func ParseBool(b string) *bool { } return &truth } + +// ReadHexFromFile reads a file and attempts to parse a uint64 from a hexadecimal format 0xXX. +func ReadHexFromFile(path string) (uint64, error) { + data, err := os.ReadFile(path) + if err != nil { + return 0, err + } + hexString := strings.TrimSpace(string(data)) + if !strings.HasPrefix(hexString, "0x") { + return 0, errors.New("invalid format: hex string does not start with '0x'") + } + return strconv.ParseUint(hexString[2:], 16, 64) +} |