crypt
Synopsis
#include <unistd.h>
char *crypt(const char *key, const char *salt);
Status
Partially implemented
Conformance
IEEE Std 1003.1-2017
Description
The crypt() function is a string encoding function. The algorithm is implementation-defined.
The key argument points to a string to be encoded. The salt argument shall be a string of at least two bytes in
length not including the null character chosen from the set:
a b c d e f g h i j k l m n o p q r s t u v w x y z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
0 1 2 3 4 5 6 7 8 9 . /
The first two bytes of this string may be used to perturb the encoding algorithm.
The return value of crypt() points to static data that is overwritten by each call.
The crypt() function need not be thread-safe.
Return value
Upon successful completion, crypt() shall return a pointer to the encoded string. The first two bytes of the returned
value shall be those of the salt argument. Otherwise, it shall return a null pointer and set errno to indicate the
error.
Errors
The crypt() function shall fail if:
ENOSYS- The functionality is not supported in this implementation.
Tests
Untested
Known bugs
None