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openssl/crypto/s390xcap.c
Richard Levitte 0e9725bcb9 Following the license change, modify the boilerplates in crypto/ 
[skip ci]

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7827)
2018-12-06 15:32:17 +01:00

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/*
* Copyright 2010-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include "internal/cryptlib.h"
#include "internal/ctype.h"
#include "s390x_arch.h"
#define LEN 128
#define STR_(S) #S
#define STR(S) STR_(S)
#define TOK_FUNC(NAME) \
(sscanf(tok_begin, \
" " STR(NAME) " : %" STR(LEN) "[^:] : " \
"%" STR(LEN) "s %" STR(LEN) "s ", \
tok[0], tok[1], tok[2]) == 2) { \
\
off = (tok[0][0] == '~') ? 1 : 0; \
if (sscanf(tok[0] + off, "%llx", &cap->NAME[0]) != 1) \
goto ret; \
if (off) \
cap->NAME[0] = ~cap->NAME[0]; \
\
off = (tok[1][0] == '~') ? 1 : 0; \
if (sscanf(tok[1] + off, "%llx", &cap->NAME[1]) != 1) \
goto ret; \
if (off) \
cap->NAME[1] = ~cap->NAME[1]; \
}
#define TOK_CPU(NAME) \
(sscanf(tok_begin, \
" %" STR(LEN) "s %" STR(LEN) "s ", \
tok[0], tok[1]) == 1 \
&& !strcmp(tok[0], #NAME)) { \
memcpy(cap, &NAME, sizeof(*cap)); \
}
static sigjmp_buf ill_jmp;
static void ill_handler(int sig)
{
siglongjmp(ill_jmp, sig);
}
static const char *env;
static int parse_env(struct OPENSSL_s390xcap_st *cap);
void OPENSSL_s390x_facilities(void);
void OPENSSL_s390x_functions(void);
void OPENSSL_vx_probe(void);
struct OPENSSL_s390xcap_st OPENSSL_s390xcap_P;
void OPENSSL_cpuid_setup(void)
{
sigset_t oset;
struct sigaction ill_act, oact;
struct OPENSSL_s390xcap_st cap;
if (OPENSSL_s390xcap_P.stfle[0])
return;
/* set a bit that will not be tested later */
OPENSSL_s390xcap_P.stfle[0] |= S390X_CAPBIT(0);
env = getenv("OPENSSL_s390xcap");
if (env != NULL) {
if (!parse_env(&cap))
env = NULL;
}
memset(&ill_act, 0, sizeof(ill_act));
ill_act.sa_handler = ill_handler;
sigfillset(&ill_act.sa_mask);
sigdelset(&ill_act.sa_mask, SIGILL);
sigdelset(&ill_act.sa_mask, SIGFPE);
sigdelset(&ill_act.sa_mask, SIGTRAP);
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &oact);
sigaction(SIGFPE, &ill_act, &oact);
/* protection against missing store-facility-list-extended */
if (sigsetjmp(ill_jmp, 1) == 0)
OPENSSL_s390x_facilities();
if (env != NULL) {
OPENSSL_s390xcap_P.stfle[0] &= cap.stfle[0];
OPENSSL_s390xcap_P.stfle[1] &= cap.stfle[1];
OPENSSL_s390xcap_P.stfle[2] &= cap.stfle[2];
}
/* protection against disabled vector facility */
if ((OPENSSL_s390xcap_P.stfle[2] & S390X_CAPBIT(S390X_VX))
&& (sigsetjmp(ill_jmp, 1) == 0)) {
OPENSSL_vx_probe();
} else {
OPENSSL_s390xcap_P.stfle[2] &= ~(S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE));
}
sigaction(SIGFPE, &oact, NULL);
sigaction(SIGILL, &oact, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
OPENSSL_s390x_functions();
if (env != NULL) {
OPENSSL_s390xcap_P.kimd[0] &= cap.kimd[0];
OPENSSL_s390xcap_P.kimd[1] &= cap.kimd[1];
OPENSSL_s390xcap_P.klmd[0] &= cap.klmd[0];
OPENSSL_s390xcap_P.klmd[1] &= cap.klmd[1];
OPENSSL_s390xcap_P.km[0] &= cap.km[0];
OPENSSL_s390xcap_P.km[1] &= cap.km[1];
OPENSSL_s390xcap_P.kmc[0] &= cap.kmc[0];
OPENSSL_s390xcap_P.kmc[1] &= cap.kmc[1];
OPENSSL_s390xcap_P.kmac[0] &= cap.kmac[0];
OPENSSL_s390xcap_P.kmac[1] &= cap.kmac[1];
OPENSSL_s390xcap_P.kmctr[0] &= cap.kmctr[0];
OPENSSL_s390xcap_P.kmctr[1] &= cap.kmctr[1];
OPENSSL_s390xcap_P.kmo[0] &= cap.kmo[0];
OPENSSL_s390xcap_P.kmo[1] &= cap.kmo[1];
OPENSSL_s390xcap_P.kmf[0] &= cap.kmf[0];
OPENSSL_s390xcap_P.kmf[1] &= cap.kmf[1];
OPENSSL_s390xcap_P.prno[0] &= cap.prno[0];
OPENSSL_s390xcap_P.prno[1] &= cap.prno[1];
OPENSSL_s390xcap_P.kma[0] &= cap.kma[0];
OPENSSL_s390xcap_P.kma[1] &= cap.kma[1];
}
}
static int parse_env(struct OPENSSL_s390xcap_st *cap)
{
/*-
* CPU model data
* (only the STFLE- and QUERY-bits relevant to libcrypto are set)
*/
/*-
* z900 (2000) - z/Architecture POP SA22-7832-00
* Facility detection would fail on real hw (no STFLE).
*/
static const struct OPENSSL_s390xcap_st z900 = {
.stfle = {0ULL, 0ULL, 0ULL, 0ULL},
.kimd = {0ULL, 0ULL},
.klmd = {0ULL, 0ULL},
.km = {0ULL, 0ULL},
.kmc = {0ULL, 0ULL},
.kmac = {0ULL, 0ULL},
.kmctr = {0ULL, 0ULL},
.kmo = {0ULL, 0ULL},
.kmf = {0ULL, 0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z990 (2003) - z/Architecture POP SA22-7832-02
* Implements MSA. Facility detection would fail on real hw (no STFLE).
*/
static const struct OPENSSL_s390xcap_st z990 = {
.stfle = {S390X_CAPBIT(S390X_MSA),
0ULL, 0ULL, 0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1),
0ULL},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY),
0ULL},
.kmctr = {0ULL, 0ULL},
.kmo = {0ULL, 0ULL},
.kmf = {0ULL, 0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z9 (2005) - z/Architecture POP SA22-7832-04
* Implements MSA and MSA1.
*/
static const struct OPENSSL_s390xcap_st z9 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
0ULL, 0ULL, 0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256),
0ULL},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY),
0ULL},
.kmctr = {0ULL, 0ULL},
.kmo = {0ULL, 0ULL},
.kmf = {0ULL, 0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z10 (2008) - z/Architecture POP SA22-7832-06
* Implements MSA and MSA1-2.
*/
static const struct OPENSSL_s390xcap_st z10 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
0ULL, 0ULL, 0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY),
0ULL},
.kmctr = {0ULL, 0ULL},
.kmo = {0ULL, 0ULL},
.kmf = {0ULL, 0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z196 (2010) - z/Architecture POP SA22-7832-08
* Implements MSA and MSA1-4.
*/
static const struct OPENSSL_s390xcap_st z196 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
0ULL, 0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmctr = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmo = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmf = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* zEC12 (2012) - z/Architecture POP SA22-7832-09
* Implements MSA and MSA1-4.
*/
static const struct OPENSSL_s390xcap_st zEC12 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
0ULL, 0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmctr = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmo = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmf = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.prno = {0ULL, 0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z13 (2015) - z/Architecture POP SA22-7832-10
* Implements MSA and MSA1-5.
*/
static const struct OPENSSL_s390xcap_st z13 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF)
| S390X_CAPBIT(S390X_MSA5),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
S390X_CAPBIT(S390X_VX),
0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmctr = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmo = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmf = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.prno = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_512_DRNG),
0ULL},
.kma = {0ULL, 0ULL},
};
/*-
* z14 (2017) - z/Architecture POP SA22-7832-11
* Implements MSA and MSA1-8.
*/
static const struct OPENSSL_s390xcap_st z14 = {
.stfle = {S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF)
| S390X_CAPBIT(S390X_MSA5),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE)
| S390X_CAPBIT(S390X_MSA8),
0ULL},
.kimd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
S390X_CAPBIT(S390X_GHASH)},
.klmd = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
0ULL},
.km = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
.kmc = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmac = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmctr = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmo = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.kmf = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
.prno = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_512_DRNG),
S390X_CAPBIT(S390X_TRNG)},
.kma = {S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
};
char *tok_begin, *tok_end, *buff, tok[S390X_STFLE_MAX][LEN + 1];
int rc, off, i, n;
buff = malloc(strlen(env) + 1);
if (buff == NULL)
return 0;
rc = 0;
memset(cap, ~0, sizeof(*cap));
strcpy(buff, env);
tok_begin = buff + strspn(buff, ";");
strtok(tok_begin, ";");
tok_end = strtok(NULL, ";");
while (tok_begin != NULL) {
/* stfle token */
if ((n = sscanf(tok_begin,
" stfle : %" STR(LEN) "[^:] : "
"%" STR(LEN) "[^:] : %" STR(LEN) "s ",
tok[0], tok[1], tok[2]))) {
for (i = 0; i < n; i++) {
off = (tok[i][0] == '~') ? 1 : 0;
if (sscanf(tok[i] + off, "%llx", &cap->stfle[i]) != 1)
goto ret;
if (off)
cap->stfle[i] = ~cap->stfle[i];
}
}
/* query function tokens */
else if TOK_FUNC(kimd)
else if TOK_FUNC(klmd)
else if TOK_FUNC(km)
else if TOK_FUNC(kmc)
else if TOK_FUNC(kmac)
else if TOK_FUNC(kmctr)
else if TOK_FUNC(kmo)
else if TOK_FUNC(kmf)
else if TOK_FUNC(prno)
else if TOK_FUNC(kma)
/* CPU model tokens */
else if TOK_CPU(z900)
else if TOK_CPU(z990)
else if TOK_CPU(z9)
else if TOK_CPU(z10)
else if TOK_CPU(z196)
else if TOK_CPU(zEC12)
else if TOK_CPU(z13)
else if TOK_CPU(z14)
/* whitespace(ignored) or invalid tokens */
else {
while (*tok_begin != '\0') {
if (!ossl_isspace(*tok_begin))
goto ret;
tok_begin++;
}
}
tok_begin = tok_end;
tok_end = strtok(NULL, ";");
}
rc = 1;
ret:
free(buff);
return rc;
}
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