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a more proper replacement for vasprintf. Lets see if we can actually do it this way (seems to work on msvc which is the only platform I have seen that does not have vasprintf available). 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4762 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2007-03-24 19:33:34 +00:00
parent dc765f457e
commit db9e1c549b
1 changed files with 16 additions and 67 deletions
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79
src/switch_apr.c
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@ -608,79 +608,28 @@ SWITCH_DECLARE(switch_status_t) switch_queue_trypush(switch_queue_t *queue, void
return apr_queue_trypush(queue, data);
}
#if 0
/* Utility functions */
struct switch_vasprintf_data {
apr_vformatter_buff_t vbuff;
switch_size_t len;
switch_size_t block_size;
char *buf;
};
static int vasprintf_flush(apr_vformatter_buff_t *buff)
SWITCH_DECLARE(int) switch_vasprintf(char **ret, const char *fmt, va_list ap)
{
struct switch_vasprintf_data *data = (struct switch_vasprintf_data *)buff;
char *temp;
switch_size_t len = data->vbuff.curpos - data->buf;
if ((temp = realloc(data->buf, data->len + data->block_size))) {
data->buf = temp;
data->vbuff.curpos = data->buf + len;
data->len = data->len + data->block_size;
data->vbuff.endpos = data->buf + data->len;
return 0;
}
return -1;
}
#endif
SWITCH_DECLARE(int) switch_vasprintf(char **buf, const char *format, va_list ap)
{
#if 0
struct switch_vasprintf_data data;
data.block_size = 1024;
data.buf = malloc(data.block_size);
if (data.buf == NULL) {
*buf = NULL;
return 0;
}
data.vbuff.curpos = data.buf;
data.vbuff.endpos = data.buf + data.block_size;
return apr_vformatter(vasprintf_flush, (apr_vformatter_buff_t *)&data, format, ap);
#endif
#ifdef HAVE_VASPRINTF
return vasprintf(buf, format, ap);
return vasprintf(ret, fmt, ap);
#else
size_t block_size = 1024;
int ret = -1;
int count = 1;
*buf = (char *) malloc(block_size);
char *buf;
int len;
size_t buflen;
if (*buf == NULL) {
len = vsnprintf(NULL, 0, fmt, ap);
if (len > 0) {
buflen = (size_t)(len + 1);
if ((buf = malloc(buflen)) == NULL) {
*ret = NULL;
return -1;
}
while (ret == -1 && count < 10) {
ret = vsnprintf(*buf, block_size*count, format, ap);
if (ret == -1) {
void *new_buf;
count++;
new_buf = realloc(*buf, block_size*count);
if (new_buf == NULL) {
*buf = NULL;
return -1;
len = vsnprintf(buf, buflen, fmt, ap);
*ret = buf;
} else {
*buf = new_buf;
*ret = NULL;
}
}
}
return ret;
return len;
#endif
}