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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2023 Red Hat
*/
#include "string-utils.h"
#include "errors.h"
#include "logger.h"
#include "memory-alloc.h"
int vdo_alloc_sprintf(const char *what, char **strp, const char *fmt, ...)
{
va_list args;
int result;
int count;
if (strp == NULL)
return UDS_INVALID_ARGUMENT;
va_start(args, fmt);
count = vsnprintf(NULL, 0, fmt, args) + 1;
va_end(args);
result = vdo_allocate(count, char, what, strp);
if (result == VDO_SUCCESS) {
va_start(args, fmt);
vsnprintf(*strp, count, fmt, args);
va_end(args);
}
if ((result != VDO_SUCCESS) && (what != NULL))
vdo_log_error("cannot allocate %s", what);
return result;
}
char *vdo_append_to_buffer(char *buffer, char *buf_end, const char *fmt, ...)
{
va_list args;
size_t n;
va_start(args, fmt);
n = vsnprintf(buffer, buf_end - buffer, fmt, args);
if (n >= (size_t) (buf_end - buffer))
buffer = buf_end;
else
buffer += n;
va_end(args);
return buffer;
}
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