KEYCTL_UPDATE - Online Linux Manual PageSection : 3
Updated : 4 May 2006
Source : Linux
Note : Linux Key Management Calls

---

NAMEkeyctl_update − update a key

---

SYNOPSIS#include <keyutils.h> long keyctl_update(key_serial_t key, const void *payload, size_t plen);

---

DESCRIPTION keyctl_update() updates the payload of a key if the key type permits it. The caller must have write permission on a key to be able update it. payload and plen specify the data for the new payload. payload may be NULL and plen may be zero if the key type permits that. The key type may reject the data if it's in the wrong format or in some other way invalid.

---

RETURN VALUEOn success keyctl_update() returns 0. On error, the value -1 will be returned and errno will have been set to an appropriate error.

---

ERRORSENOKEY  The key specified is invalid. EKEYEXPIRED  The key specified has expired. EKEYREVOKED  The key specified had been revoked. EINVAL  The payload data was invalid. ENOMEM  Insufficient memory to store the new payload. EDQUOT  The key quota for this user would be exceeded by increasing the size of the key to accommodate the new payload. EACCES  The key exists, but is not writable by the calling process. EOPNOTSUPP  The key type does not support the update operation on its keys.

---

LINKINGThis is a library function that can be found in libkeyutils. When linking, −lkeyutils should be specified to the linker.

---

SEE ALSOkeyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3), keyrings(7), keyutils(7) 0

---

Johanes Gumabo

---

Data Size   :   7,113 byte
man-keyctl_update.3Build   :   2024-12-29, 07:25   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   2 / 255,843
Visitor ID   :     :  
Visitor IP   :   18.119.138.124   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.29
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36

---

Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .

---

If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.

---