int main(int argc, char **argv)
{
char *buffer __attribute__ ((__cleanup__(free_buffer))) = malloc(20);
FILE *fp __attribute__ ((__cleanup__(cleanup_file)));
fp = fopen(TMP_FILE, "w+");
if (fp != NULL)
fprintf(fp, "%s", "Alinewithnospaces");
fflush(fp);
fseek(fp, 0L, SEEK_SET);
fscanf(fp, "%s", buffer);
printf("%s\n", buffer);
return 0;
}
/* Read data from file descriptor FD, and put the result in the
buffers described by VECTOR, which is a vector of COUNT 'struct iovec's.
The buffers are filled in the order specified.
Operates just like 'read' (see <unistd.h>) except that data are
put in VECTOR instead of a contiguous buffer. */
ssize_t
__readv (int fd, const struct iovec *vector, int count)
{
/* Find the total number of bytes to be read. */
size_t bytes = 0;
for (int i = 0; i < count; ++i)
{
/* Check for ssize_t overflow. */
if (SSIZE_MAX - bytes < vector[i].iov_len)
{
__set_errno (EINVAL);
return -1;
}
bytes += vector[i].iov_len;
}
/* Allocate a temporary buffer to hold the data. We should normally
use alloca since it's faster and does not require synchronization
with other threads. But we cannot if the amount of memory
required is too large. */
char *buffer;
char *malloced_buffer __attribute__ ((__cleanup__ (ifree))) = NULL;
if (__libc_use_alloca (bytes))
buffer = (char *) __alloca (bytes);
else
{
malloced_buffer = buffer = (char *) malloc (bytes);
if (buffer == NULL)
return -1;
}
/* Read the data. */
ssize_t bytes_read = __read (fd, buffer, bytes);
if (bytes_read < 0)
return -1;
/* Copy the data from BUFFER into the memory specified by VECTOR. */
bytes = bytes_read;
for (int i = 0; i < count; ++i)
{
size_t copy = MIN (vector[i].iov_len, bytes);
(void) memcpy ((void *) vector[i].iov_base, (void *) buffer, copy);
buffer += copy;
bytes -= copy;
if (bytes == 0)
break;
}
return bytes_read;
}
IDENT_MPTR_RAW * BetterString_$_toString_$_(IDENT_MPTR_RAW * b_, IDENT_MPTR_RAW * $_mptr_in)
{
debugPrintf("Creating string from %s and storing in %s\n",b_->debugName,$_mptr_in->debugName);
BetterString * b = b_->obj;
_$_mptr __attribute__ ((__cleanup__(_$_cleanup))) $_mptr_temp;
IDENT_MPTR_INITIALIZE_RAW (&$_mptr_temp, xstr($_mptr_temp));
IDENT_MPTR_RAW * s_ = String_$_String_$_(&$_mptr_temp);
String *s = (String *) s_->obj;
s->buffer = malloc(sizeof(char)*(b->slen+1));
memcpy(s->buffer, b->data, b->slen);
s->cap = b->mlen;
s->length = b->slen;
_$_mptr_prepare(&$_mptr_temp, $_mptr_in);
return $_mptr_in;
}
