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/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#include <ngx_config.h>
#include <ngx_core.h>
/*
* Solaris has thread-safe crypt()
* Linux has crypt_r(); "struct crypt_data" is more than 128K
* FreeBSD needs the mutex to protect crypt()
*
* TODO:
* ngx_crypt_init() to init mutex
*/
#if (NGX_CRYPT)
#if (NGX_HAVE_GNU_CRYPT_R)
ngx_int_t
ngx_libc_crypt(ngx_pool_t *pool, u_char *key, u_char *salt, u_char **encrypted)
{
char *value;
size_t len;
struct crypt_data cd;
cd.initialized = 0;
#ifdef __GLIBC__
/* work around the glibc bug */
cd.current_salt[0] = ~salt[0];
#endif
value = crypt_r((char *) key, (char *) salt, &cd);
if (value) {
len = ngx_strlen(value) + 1;
*encrypted = ngx_pnalloc(pool, len);
if (*encrypted == NULL) {
return NGX_ERROR;
}
ngx_memcpy(*encrypted, value, len);
return NGX_OK;
}
ngx_log_error(NGX_LOG_CRIT, pool->log, ngx_errno, "crypt_r() failed");
return NGX_ERROR;
}
#else
ngx_int_t
ngx_libc_crypt(ngx_pool_t *pool, u_char *key, u_char *salt, u_char **encrypted)
{
char *value;
size_t len;
ngx_err_t err;
value = crypt((char *) key, (char *) salt);
if (value) {
len = ngx_strlen(value) + 1;
*encrypted = ngx_pnalloc(pool, len);
if (*encrypted == NULL) {
return NGX_ERROR;
}
ngx_memcpy(*encrypted, value, len);
return NGX_OK;
}
err = ngx_errno;
ngx_log_error(NGX_LOG_CRIT, pool->log, err, "crypt() failed");
return NGX_ERROR;
}
#endif
#endif /* NGX_CRYPT */
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