/* Modify STR in-place. '%', CR and LF are always percent escaped,
other characters may be percent escaped, always using uppercase
hex, see https://www.gnupg.org/documentation/manuals/assuan.pdf */
static char *
unescape_assuan(char *str)
{
char *s = str;
while (s[0])
{
if (s[0] == '%' && is_hex(s[1]) && is_hex(s[2]))
{
char *s2 = s;
char val = hex_to_int(s[1]) * 16 + hex_to_int(s[2]);
s2[0] = val;
++s2;
while (s2[2])
{
s2[0] = s2[2];
++s2;
}
s2[0] = '\0';
}
++s;
}
return str;
}
/* Converts the two input hex characters into an ascii char. */
static int
hex_to_ascii(char a, char b)
{
int high = hex_to_int(a) * 16;
int low = hex_to_int(b);
return high + low;
}
/*
* get the values of malloc environ variables
*/
LOCAL void get_environ(void)
{
char *env;
/* get the malloc_debug value */
env = (char *)getenv(DEBUG_ENVIRON);
if (env != NULL)
_malloc_debug = hex_to_int(env);
/* get the malloc debug logfile name into a holding variable */
env = (char *)getenv(LOGFILE_ENVIRON);
if (env != NULL) {
(void)strcpy(log_path, env);
malloc_logpath = log_path;
}
/* watch for a specific address and die when we get it */
env = (char *)getenv(ADDRESS_ENVIRON);
if (env != NULL) {
char *addp;
addp = index(env, ':');
if (addp != NULL) {
*addp = NULLC;
address_count = atoi(addp + 1);
}
else
address_count = 1;
malloc_address = (char *)hex_to_int(env);
}
/* check the heap every X times */
env = (char *)getenv(INTERVAL_ENVIRON);
if (env != NULL)
check_interval = atoi(env);
/*
* start checking the heap after X iterations OR
* start at a file:line combination
*/
env = (char *)getenv(START_ENVIRON);
if (env != NULL) {
char *startp;
BIT_CLEAR(_malloc_debug, DEBUG_CHECK_HEAP);
startp = index(env, ':');
if (startp != NULL) {
*startp = NULLC;
(void)strcpy(start_file, env);
start_line = atoi(startp + 1);
start_count = 0;
}
else
start_count = atoi(env);
}
}
// See ConfigDlg.h for documentation of this method.
void ConfigDlg::UpdateDataOfBootloaderConfigureArea(BOOL direction)
{
if (direction)
{
UpdateData(TRUE); // Update UI to CString m_bcaBinaries
int length = m_bcaBinaries.GetLength();
LPWSTR buffer = m_bcaBinaries.GetBuffer();
char tempHigh, tempLow;
int posBin = 0, posChar = 0;
while ((posBin < 64) && (posChar < length))
{
// Only convert legal characters.
if (isxdigit(buffer[posChar * 2]) && isxdigit(buffer[posChar * 2 + 1]))
{
tempHigh = buffer[posChar * 2] & 0xFF; // change TCHAR to char, abandon the high bits.
tempLow = buffer[posChar * 2 + 1] & 0xFF; // change TCHAR to char, abandon the high bits.
m_bcaData[posBin] = ((hex_to_int(tempHigh) & 0xFF) << 4) | (hex_to_int(tempLow) & 0xFF);
posBin++;
posChar++;
}
else
{
// Skip the illegal character pairs.
posChar++;
}
}
m_bcaBinaries.ReleaseBuffer();
}
else
{
LPTSTR buffer = m_bcaBinaries.GetBuffer(128 + 2 * 4 + 1); // 128 for 128 BCA characters
// 2 * 4 for enter characters("\r\n") each line
// 1 byte more for for terminator("\0")
int posBin = 0, posChar = 0;
for (; posBin < 64; posChar++, posBin++)
{
// 32 characters each line.
if ((!(posBin % 0x10)) && (posBin != 0))
{
// Add "\r\n" at the end of each line
buffer[posChar * 2] = '\r';
buffer[posChar * 2 + 1] = '\n';
posChar++;
}
buffer[posChar * 2] = int_to_hex(m_bcaData[posBin] >> 4);
buffer[posChar * 2 + 1] = int_to_hex(m_bcaData[posBin]);
}
buffer[posChar * 2] = '\0';
m_bcaBinaries.ReleaseBuffer();
UpdateData(FALSE); // Update CString m_bcaBinaries to UI
}
}
/*
* Function to unparse the hexadecimal to byte char.
* Input:char *str -- Hexadecimal hash value
* Output:DIGEST -- byte char of hash.
*/
DIGEST *unparse(char *str, int len)
{
DIGEST *digest = (DIGEST *)calloc(1, len);
int index;
for (index = 0; index < len * 2; index += 2) {
digest[index / 2] = hex_to_int(str[index]) * 16 +
hex_to_int(str[index + 1]);
}
return digest;
}
static svn_boolean_t hex_decode(unsigned char *hashval, const char *hexval)
{
int i, h1, h2;
for (i = 0; i < APR_MD5_DIGESTSIZE; i++)
{
h1 = hex_to_int(hexval[2 * i]);
h2 = hex_to_int(hexval[2 * i + 1]);
if (h1 == -1 || h2 == -1)
return FALSE;
hashval[i] = (unsigned char)((h1 << 4) | h2);
}
return TRUE;
}
int handle_msg(char *msg, int bytes) {
int length, i;
char *end;
ENVIRAHDR *hdr;
switch (msg[0]) {
// These occur at message boundaries so we ignore them
case 0x0A: return 1;
case 0x0D: return 1;
case '>': return 1;
// We discard these messages at the moment
case '[':
return bytes;
// One of the message types we know. Qualify and decode the message.
case 'H':
case 'M':
case 'L':
// See if we have a complete message terminated with a newline. The spec
// says we should get 0x0D 0x0A, but I'm getting 0x0A 0x0A on mine.
end = memchr(msg, 0x0A, bytes);
if (!end) return 0;
// We need at least 17 bytes to contain even a 0-byte-payload message
length = end - msg;
if (length < 17) {
return bytes;
}
// Decode the message. We don't bother with the checksum right now.
hdr = (ENVIRAHDR *) msg;
emsg.priority = (hdr->priority == 'H') ? 0x00 : (hdr->priority == 'M' ? 0x40 : 0x80);
emsg.type = hex_to_int(hdr->type, sizeof(hdr->type));
emsg.instance = hex_to_int(hdr->instance, sizeof(hdr->instance));
emsg.command = (hdr->command == 'Q') ? 0x00 : (hdr->command == 'R' ? 0x40 : 0x80);
emsg.length = hex_to_int(hdr->length, sizeof(hdr->length));
for (i = 0; i < emsg.length && i < sizeof(emsg.payload); i++) {
emsg.payload[i] = hex_to_int(&hdr->payload[i * 3], 2);
}
process_enviracom(&emsg);
return length;
// Unknown message - probably started mid-stream. Discard to sync up
default:
return bytes;
}
}
static uint8_t *decode_html(uint8_t *data, uint64_t data_length, uint64_t *out_length)
{
buffer_t *b = buffer_create(BO_HOST);
uint64_t i = 0;
while(i < data_length)
{
/* If the character is a '%' and we aren't at the end of the string, decode
* the hex character and add it to the string.
*
* The typecasts to 'int' here are to fix warnings from cygwin. */
if(data[i] == '%' && (i + 2) < data_length && isxdigit((int)data[i + 1]) && isxdigit((int)data[i + 2]))
{
/* Add the new character to the string as a uint8_t. */
buffer_add_int8(b, hex_to_int(&data[i] + 1));
/* We consumed three digits here. */
i += 3;
}
else if(data[i] == '+')
{
/* In html encoding, a '+' is a space. */
buffer_add_int8(b, ' ');
i++;
}
else
{
/* If it's not %NN or +, it's just a raw number.k */
buffer_add_int8(b, data[i]);
i++;
}
}
return buffer_create_string_and_destroy(b, out_length);
}
static uint8_t *decode_hex(uint8_t *data, uint64_t data_length, uint64_t *out_length)
{
buffer_t *b = buffer_create(BO_HOST);
uint64_t i = 0;
/* If we wind up with an odd number of characters, the final character is
* ignored. */
while(i + 1 < data_length)
{
/* Skip over and ignore non-hex digits. */
if(!isxdigit(data[i]) || !isxdigit(data[i+1]))
{
i++;
continue;
}
/* Add the new character to the string as a uint8_t. */
buffer_add_int8(b, hex_to_int(&data[i]));
/* We consumed three digits here. */
i += 2;
}
return buffer_create_string_and_destroy(b, out_length);
}
int decode_hex(const char *str, unsigned char *ch)
{
int i;
*ch = 0;
for(i = 0; i < 2; i++)
{
if(!isxdigit(str[i]))
{
break;
}
*ch = *ch << 4;
*ch = *ch | hex_to_int(str[i]);
}
if(i == 0)
{
printf("Missing following hex characters\n");
return 0;
}
if(*ch == 0)
{
printf("Invalid hex character (not allowed NULs)\n");
return 0;
}
return i;
}
/* Detect chunked upload progress
*/
static int all_chunks_uploaded(char *buffer, int size, long *chunk_size_pos) {
int chunk_size, len;
char *end;
if (*chunk_size_pos >= size) {
return -1;
}
if ((end = strstr(buffer + *chunk_size_pos, "\r\n")) == NULL) {
return 0;
}
*end = '\0';
chunk_size = hex_to_int(buffer + *chunk_size_pos);
*end = '\r';
if (chunk_size == -1) {
return -1;
}
len = (end - buffer) + chunk_size + 4;
if (chunk_size == 0) {
if (size >= len) {
return 1;
}
} else if (size > len) {
*chunk_size_pos = len;
return all_chunks_uploaded(buffer, size, chunk_size_pos);
}
return 0;
}
static int parse_numeric_literal(parser_ctx_t *ctx, literal_t **literal)
{
LONG l, d;
l = *ctx->ptr++ - '0';
if(!l) {
if(*ctx->ptr == 'x' || *ctx->ptr == 'X') {
if(++ctx->ptr == ctx->end) {
ERR("unexpected end of file\n");
return 0;
}
while(ctx->ptr < ctx->end && (d = hex_to_int(*ctx->ptr)) != -1) {
l = l*16 + d;
ctx->ptr++;
}
if(ctx->ptr < ctx->end && is_identifier_char(*ctx->ptr)) {
WARN("unexpected identifier char\n");
return lex_error(ctx, JS_E_MISSING_SEMICOLON);
}
*literal = new_double_literal(ctx, l);
return tNumericLiteral;
}
if(isdigitW(*ctx->ptr)) {
unsigned base = 8;
const WCHAR *ptr;
double val = 0;
for(ptr = ctx->ptr; ptr < ctx->end && isdigitW(*ptr); ptr++) {
if(*ptr > '7') {
base = 10;
break;
}
}
do {
val = val*base + *ctx->ptr-'0';
}while(++ctx->ptr < ctx->end && isdigitW(*ctx->ptr));
/* FIXME: Do we need it here? */
if(ctx->ptr < ctx->end && (is_identifier_char(*ctx->ptr) || *ctx->ptr == '.')) {
WARN("wrong char after octal literal: '%c'\n", *ctx->ptr);
return lex_error(ctx, JS_E_MISSING_SEMICOLON);
}
*literal = new_double_literal(ctx, val);
return tNumericLiteral;
}
if(is_identifier_char(*ctx->ptr)) {
WARN("wrong char after zero\n");
return lex_error(ctx, JS_E_MISSING_SEMICOLON);
}
}
return parse_double_literal(ctx, l, literal);
}
int load_motos1(char *filename)
{
char buf[201];
char *r;
int num_bytes,i,p,done=0;
long start_addr;
unsigned char value;
FILE *fi;
printf("loading %s\n", filename);
fi=fopen(filename,"r");
if(fi==NULL)
{
printf("can't open it, sorry.\n");
return(0);
}
r = fgets(buf,200,fi);
while(!done)
{
/* read len */ /* 2 bytes of addr, 1 byte is checksum */
num_bytes = (16*hex_to_int(buf[2])+hex_to_int(buf[3]))-3;
/* read addr */
start_addr=0;
for(p=4,i=0;i<4;i++)
start_addr = (start_addr<<4) + hex_to_int(buf[p++]);
/* read data */
for(i=0;i<num_bytes;i++) {
value = 16*hex_to_int(buf[p])+hex_to_int(buf[p+1]);
p+=2;
set_memb(start_addr+i,value);
// printf("0x%08x: 0x%02x\n",start_addr+i,value);
}
/* check for ending */
if(!strncmp("S9",buf,2))
{
break; /* done */
}
r = fgets(buf,200,fi);
if(feof(fi))done=1;
}
fclose(fi);
return(1);
}
static int
unescape_character (const char *scanner)
{
int first_digit;
int second_digit;
first_digit = hex_to_int (*scanner++);
if (first_digit < 0) {
return -1;
}
second_digit = hex_to_int (*scanner++);
if (second_digit < 0) {
return -1;
}
return (first_digit << 4) | second_digit;
}
void http_decode_url(char *url) {
char *out;
char c;
out = url;
while ('\0' != (c = *url)) {
if (c == '%' && *(url + 1) != '\0' && *(url + 2) != '\0') {
*out = (char)(hex_to_int(*(url + 1)) * 16 + hex_to_int(*(url + 2)));
++out;
url += 2;
} else {
*out = c;
++out;
++url;
}
}
*out = '\0';
}
char* hexToString(char* in)
{
int index;
char* ascii = malloc(sizeof(char)*4096);
int high;
int low;
int c;
for (index = 0; index<strlen(in); index = index+2) {
high = hex_to_int(in[index]) * 16;
low = hex_to_int(in[index+1]);
c = (high+low);
// printf("%c", c);
if (index == 0)
ascii[0] = c;
else
ascii[index/2] = c;
}
ascii[(index+1)/2] = '\0';
return ascii;
}
static void test_hex_to_int(void)
{
int i;
char buffer[] = "AA\0";
printf("Testing hex_to_int...\n");
for(i = 0; i < 256; i++)
{
sprintf(buffer, "%02x", i);
test_check_integer("hex_to_int", hex_to_int((uint8_t*)buffer), i);
}
}
void LED_Array::fetch_leds(void) {
String msg = bluetooth.read_string();
bluetooth.write_string(msg);
msg.trim();
int num_leds = (msg.length() - 1 > array_size) ? array_size: msg.length() - 1;
bluetooth.write_string("Number of leds: " + String(num_leds));
if (msg.length()) {
pattern = hex_to_int(msg[0]);
bluetooth.write_string("Pattern: " + String(pattern));
}
for (int i = 0; i < num_leds; i++) {
int current_val = hex_to_int(msg[i+1]);
led_array[i].red = current_val & 4 ? 255 : 0;
led_array[i].green = current_val & 2 ? 255 : 0;
led_array[i].blue = current_val & 1 ? 255 : 0;
bluetooth.write_string("LED" + String(i)
+ " RED:" + String(led_array[i].red)
+ " GREEN:" + String(led_array[i].green)
+ " BLUE:" + String(led_array[i].blue));
}
}
static int decrypt_password(unsigned char *secret, int keybits, char *buf, int bufsize, char *encrypted) {
size_t ciphertextlen, datalen;
unsigned char iv[BLOCK_SIZE];
rijndaelcbc *c;
int i, j;
datalen = strlen(encrypted);
if(datalen % 2 != 0)
return 1;
if(datalen < BLOCK_SIZE * 2 * 2)
return 2;
if(!hex_to_int(encrypted, iv, BLOCK_SIZE))
return 3;
ciphertextlen = (datalen - (BLOCK_SIZE * 2)) / 2;
if(ciphertextlen > bufsize || ciphertextlen % BLOCK_SIZE != 0)
return 4;
if(!hex_to_int(encrypted + BLOCK_SIZE * 2, (unsigned char *)buf, ciphertextlen))
return 5;
c = rijndaelcbc_init(secret, keybits, iv, 1);
for(i=0;i<ciphertextlen;i+=BLOCK_SIZE) {
char *p = &buf[i];
unsigned char *r = rijndaelcbc_decrypt(c, (unsigned char *)p);
memcpy(p, r, BLOCK_SIZE);
for(j=0;j<BLOCK_SIZE;j++) {
if(*(p + j) == '\0') {
rijndaelcbc_free(c);
return 0;
}
}
}
rijndaelcbc_free(c);
return 6;
}
/* Prevent cross-site scripting.
*/
int prevent_xss(t_session *session) {
int result = 0;
short low, high;
char *str, value;
if ((str = session->vars) == NULL) {
return 0;
}
while (*str != '\0') {
if ((value = *str) == '%') {
if ((high = hex_to_int(*(str + 1))) != -1) {
if ((low = hex_to_int(*(str + 2))) != -1) {
value = (char)(high<<4) + low;
}
}
}
if ((value == '\"') || (value == '<') || (value == '>') || (value == '\'')) {
*str = '_';
result += 1;
}
str++;
}
if (result > 0) {
log_exploit_attempt(session, "XSS", session->vars);
#ifdef ENABLE_TOMAHAWK
increment_counter(COUNTER_EXPLOIT);
#endif
#ifdef ENABLE_MONITOR
if (session->config->monitor_enabled) {
monitor_counter_exploit_attempt(session);
}
#endif
}
return result;
}
static void
unescape_path_component (gchar * comp)
{
guint len = strlen (comp);
guint i;
for (i = 0; i + 2 < len; i++)
if (comp[i] == '%') {
int a, b;
a = hex_to_int (comp[i + 1]);
b = hex_to_int (comp[i + 2]);
/* The a||b check is to ensure that the byte is not '\0' */
if (a >= 0 && b >= 0 && (a || b)) {
comp[i] = (gchar) (a * 16 + b);
memmove (comp + i + 1, comp + i + 3, len - i - 3);
len -= 2;
comp[len] = '\0';
}
}
}
static
rc_t MD5SumExtract(const char* str, uint8_t digest[16])
{
rc_t rc = 0;
int i = 0;
/* parse checksum */
for ( i = 0; i < 16; ++ i )
{
int l, u = hex_to_int ( str [ i + i + 0 ] );
l = hex_to_int ( str [ i + i + 1 ] );
if ( u < 0 || l < 0 )
{
rc = RC ( rcFS, rcXmlDoc, rcReading, rcFormat, rcInvalid );
break;
}
digest [ i ] = ( uint8_t ) ( ( u << 4 ) | l );
}
return rc;
}
static void unescape_url_component(tu_string* str)
// Do URL unescaping on a URL component. I.e. convert the hex code
// "%xx" to the corresponding byte, and change '+' to ' '.
{
tu_string out;
for (int i = 0; i < str->length(); i++) {
char c = (*str)[i];
if (c == '%'
&& i + 2 < str->length()) {
// Interpret the next two chars as hex digits.
char digit_hi = (*str)[i + 1];
char digit_lo = (*str)[i + 2];
int val_hi = hex_to_int(digit_hi);
int val_lo = hex_to_int(digit_lo);
if (val_hi < 0 || val_lo < 0) {
// Invalid hex digits. Pass the '%'
// straight through and don't consume the
// two following chars.
out += c;
} else {
char encoded = (val_hi << 4) | (val_lo);
if (encoded > 0) {
out += encoded;
}
i += 2;
}
} else if (c == '+') {
// '+' is turned into a space.
out += ' ';
} else {
// Pass this character straight through.
out += c;
}
}
*str = out;
}
void QUrl::decode( QString& url )
{
if ( url.isEmpty() )
return;
int newlen = 0;
QCString curl = url.utf8();
int oldlen = curl.length();
QCString newUrl(oldlen);
int i = 0;
while ( i < oldlen ) {
uchar c = (uchar)curl[ i++ ];
if ( c == '%' && i <= oldlen - 2 ) {
c = hex_to_int( (uchar)curl[ i ] ) * 16 + hex_to_int( (uchar)curl[ i + 1 ] );
i += 2;
}
newUrl [ newlen++ ] = c;
}
newUrl.truncate( newlen );
url = QString::fromUtf8(newUrl.data());
}
static bool
hex_decode(const char *hex, uint8_t **raw, size_t *len)
{
size_t hexlen = strlen(hex);
uint8_t *p;
if (hexlen == 0 || (hexlen % 2) != 0)
return (false);
*len = hexlen / 2;
p = *raw = malloc(*len);
if (*raw == NULL)
return (false);
while (hexlen != 0) {
uint8_t val[2];
if (!hex_to_int(*hex, &val[0]))
goto err;
hex++;
if (!hex_to_int(*hex, &val[1]))
goto err;
hex++;
*p = (val[0] << 4) | val[1];
p++;
hexlen -= 2;
}
return (true);
err:
free(*raw);
return (false);
}
char* recv_message(int sockfd,
SA *peeraddr, socklen_t *peeraddr_len)
{
/* Read the message length, without discarding the message. */
char msg_len_hex[4];
Recvfrom(sockfd, msg_len_hex, sizeof(msg_len_hex), MSG_PEEK,
peeraddr, peeraddr_len);
unsigned int msg_len = hex_to_int(msg_len_hex);
/* Read the whole message, including the length */
char *message = malloc(msg_len);
Recvfrom(sockfd, message, msg_len, 0, peeraddr, peeraddr_len);
message[msg_len - 1] = 0;
return message;
}
static int parse_hex_literal(parser_ctx_t *ctx, LONG *ret)
{
const WCHAR *begin = ctx->ptr;
LONG l = 0, d;
while((d = hex_to_int(*++ctx->ptr)) != -1)
l = l*16 + d;
if(begin + 9 /* max digits+1 */ < ctx->ptr || *ctx->ptr != '&') {
FIXME("invalid literal\n");
return 0;
}
ctx->ptr++;
*ret = l;
return (short)l == l ? tShort : tLong;
}
static inline uint64_t parse_btaddr (const wchar_t *s)
{
uint64_t addr = 0;
for (int i = 0; i < 18; i++) {
if (i == 17) { if (s[i] != '\0') { return INVALID_BTADDR; } else continue; }
if ((i % 3) == 2) { if (s[i] != ':') { return INVALID_BTADDR; } else continue; }
unsigned char ret = hex_to_int (s[i]);
if (ret == 0xff) { return INVALID_BTADDR; }
addr <<= 4;
addr |= ret;
}
return addr;
}
/* Merge chunks to one single content block
*/
static long merge_chunks(char *buffer, long size, long *bytes_in_buffer) {
long chunk_size, chunk_hf_len, content_length = 0;
char *end, *destination;
destination = buffer;
do {
if ((end = strstr(buffer, "\r\n")) == NULL) {
return -1;
}
*end = '\0';
chunk_size = hex_to_int(buffer);
*end = '\r';
if (chunk_size == -1) {
return -1;
}
chunk_hf_len = end + 4 - buffer;
if (chunk_hf_len + chunk_size > size) {
return -1;
}
if (chunk_size == 0) {
size -= chunk_hf_len;
if (size > 0) {
memmove(destination, end + 4, size);
}
*bytes_in_buffer -= chunk_hf_len;
*(destination + size) = '\0';
} else {
memmove(destination, end + 2, chunk_size);
destination += chunk_size;
size -= chunk_hf_len + chunk_size;
buffer += chunk_hf_len + chunk_size;
content_length += chunk_size;
*bytes_in_buffer -= chunk_hf_len;
}
} while (chunk_size > 0);
return content_length;
}
// Dans ce test, on va s'assurer que l'utilisateur n'accède pas à la mémoire située après la fin de la chaine de caractères
// @strcasecmp:test_hex_to_int5 => [hex_to_int accède à une adresse mémoire à droite de la zone mémoire de la chaine de caractères passée en argument.]
void test_hex_to_int5(void) {
char* hex1 = NULL;
//On cherche à allouer 2 pages de la mémoire, la première avec le droit d'écriture et de lecture
void *ptr = mmap(NULL, getpagesize()*2, PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (ptr == MAP_FAILED) {
CU_FAIL("La mémoire n'a pas pu être allouée pour le test test_hex_to_int5.");
return;
}
// On protège ensuite la deuxième page mémoire en enlevant les droits de lecture et écriture
mprotect(ptr+getpagesize(), getpagesize(), PROT_NONE);
// On écrit à la fin de la première page mémoire la chaine "00A1C345"
hex1 = (char*) ptr+getpagesize()-9;
strcpy(hex1, "0011C345");
/* Si le code de l'utilisateur accède à de la mémoire située après le caractère de fin \0,
* autrement dit la mémoire protégée de la seconde page, un segfault sera envoyé.
* La mécanique utilisée ici permet d'"attraper" un segfault sans que tout le programme ne plante */
//On enregistre un signal handler. Cette fonction sera exécutée par le programme lorsque
//le code produira une segmentation fault (ce qui lance le signal SIGSEGV).
if (signal(SIGSEGV, sig_handler1) == SIG_ERR) {
CU_FAIL("Impossible d'enregistrer un signal handler.");
return;
}
//On définit ici un jump avec le label label_test_hex_to_int5 qui attend le paramètre 0 (par défaut)
if(setjmp(label_test_hex_to_int5)==0) {
CU_ASSERT_TRUE( hex_to_int(hex1) == 1164101);
}
else { //On a reçu un autre paramètre que 0, autrement dit le code a exécuté sig_handler
//On a donc intercepté une segmentation fault, donc le code de l'utilisateur est fautif.
CU_ASSERT_TRUE(0);
}
//On enlève le signal handler précédemment assigné à SIGSEGV
signal(SIGSEGV, SIG_DFL);
//On libère la mémoire précédemment allouée
munmap(ptr, getpagesize()*2);
}