diff options
Diffstat (limited to 'lib/libcrypt/crypt-shs.c')
| -rw-r--r-- | lib/libcrypt/crypt-shs.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/lib/libcrypt/crypt-shs.c b/lib/libcrypt/crypt-shs.c index 683a3f5..0617b19 100644 --- a/lib/libcrypt/crypt-shs.c +++ b/lib/libcrypt/crypt-shs.c @@ -11,15 +11,29 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$FreeBSD$"; +static const char rcsid[] = \ +"$FreeBSD$"; #endif /* LIBC_SCCS and not lint */ #include <unistd.h> #include <stdio.h> #include <string.h> #include <sha.h> +#include <err.h> #include "crypt.h" +#ifdef __PIC__ +#include <dlfcn.h> + +#define SHA_Init(ctx) dl_SHA_Init(ctx) +#define SHA_Update(ctx, data, len) dl_SHA_Update(ctx, data, len) +#define SHA_Final(dgst, ctx) dl_SHA_Final(dgst, ctx) + +static void (*dl_SHA_Init)(SHA_CTX *); +static void (*dl_SHA_Update)(SHA_CTX *, const unsigned char *, unsigned int); +static void (*dl_SHA_Final)(unsigned char digest[20], SHA_CTX *); +#endif + /* * UNIX password */ @@ -41,6 +55,9 @@ crypt_sha(pw, salt) int sl,pl,i; SHA_CTX ctx,ctx1; unsigned long l; +#ifdef __PIC__ + void *libmd; +#endif /* Refine the Salt first */ sp = salt; @@ -56,6 +73,32 @@ crypt_sha(pw, salt) /* get the length of the true salt */ sl = ep - sp; +#ifdef __PIC__ + libmd = dlopen("libmd.so", RTLD_NOW); + if (libmd == NULL) + return NULL; + dl_SHA_Init = dlsym(libmd, "SHA_Init"); + if (dl_SHA_Init == NULL) { + warnx("libcrypt-md5: looking for SHA_Init: %s\n", dlerror()); + dlclose(libmd); + return NULL; + } + dl_SHA_Update = dlsym(libmd, "SHA_Update"); + if (dl_SHA_Update == NULL) { + warnx("libcrypt-md5: looking for SHA_Update: %s\n", dlerror()); + dlclose(libmd); + return NULL; + } + dl_SHA_Final = dlsym(libmd, "SHA_Final"); + if (dl_SHA_Final == NULL) { + warnx("libcrypt-md5: looking for SHA_Final: %s\n", dlerror()); + dlclose(libmd); + return NULL; + } +#endif + SHA_Init(&ctx); + + /* The password first, since that is what is most unknown */ SHA_Init(&ctx); /* The password first, since that is what is most unknown */ @@ -118,6 +161,9 @@ crypt_sha(pw, salt) SHA_Final(final,&ctx1); } +#ifdef __PIC__ + dlclose(libmd); +#endif p = passwd + strlen(passwd); l = (final[ 0]<<16) | (final[ 6]<<8) | final[12]; |
