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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
#if defined(__GNUC__)
# pragma GCC diagnostic ignored "-Wformat-nonliteral"
#endif
int
libexec_vsetenvf(struct libexec_command *cmd, enum libexec_insert_mode how, const char *name, const char *value_fmt, va_list args)
{
int len, ret;
char *buf;
va_list args2;
if (!name || !value_fmt) {
errno = EINVAL;
return -1;
}
va_copy(args2, args);
len = vsnprintf(NULL, 0, value_fmt, args2);
va_end(args2);
if (len < 0)
return -1;
buf = malloc((size_t)len + 1U);
if (!buf)
return -1;
if (vsprintf(buf, value_fmt, args) != len)
abort();
ret = libexec_setenv(cmd, how, name, buf);
free(buf);
return ret;
}
#else
TESTED_ELSEWHERE /* libexec_setenvf.c */
#endif
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