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lib/encrypt.c
81 строка
2 KB
Tobias Stoeckmann
lib/shadowlog_internal.h: Drop shadow_logfd
12 янв 2026, 16:27
12 янв 2026, 16:27
ecaae2f
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/* * SPDX-FileCopyrightText: 1990 - 1993, Julianne Frances Haugh * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz * SPDX-FileCopyrightText: 2005 , Tomasz Kłoczko * SPDX-FileCopyrightText: 2007 - 2010, Nicolas François * * SPDX-License-Identifier: BSD-3-Clause */ #include "config.h" #ident "$Id$" #include <unistd.h> #include <stdio.h> #include "prototypes.h" #include "defines.h" #include "shadowlog.h" #include "string/strcmp/strprefix.h" /*@exposed@*//*@null@*/char *pw_encrypt (const char *clear, const char *salt) { static char cipher[128]; char *cp; cp = crypt (clear, salt); if (NULL == cp) { /* * Single Unix Spec: crypt() may return a null pointer, * and set errno to indicate an error. In this case return * the NULL so the caller can handle appropriately. */ return NULL; } /* Some crypt() do not return NULL if the algorithm is not * supported, and return a DES encrypted password. */ if ((NULL != salt) && strprefix(salt, "$") && (strlen (cp) <= 13)) { /*@observer@*/const char *method; switch (salt[1]) { case '1': method = "MD5"; break; case '2': method = "BCRYPT"; break; case '5': method = "SHA256"; break; case '6': method = "SHA512"; break; case 'y': method = "YESCRYPT"; break; default: { static char nummethod[4] = "$x$"; nummethod[1] = salt[1]; method = &nummethod[0]; } } (void) fprintf (log_get_logfd(), _("crypt method not supported by libcrypt? (%s)\n"), method); errno = EINVAL; return NULL; } if (strlen (cp) != 13) { return cp; /* nonstandard crypt() in libc, better bail out */ } strcpy (cipher, cp); return cipher; }