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/* ISC license. */
#include <string.h>
#include <unistd.h>
#include <skalibs/types.h>
#include <skalibs/strerr2.h>
#include <skalibs/env.h>
#include <skalibs/djbunix.h>
#define USAGE "getpid variable prog..."
int main (int argc, char const *const *argv, char const *const *envp)
{
size_t len ;
PROG = "getpid" ;
if (argc < 3) strerr_dieusage(100, USAGE) ;
len = strlen(argv[1]) ;
if (memchr(argv[1], '=', len))
strerr_dief2x(100, "invalid variable name: ", argv[1]) ;
{
size_t i = len+1 ;
char fmt[UINT_FMT + len + 2] ;
memcpy(fmt, argv[1], len) ;
fmt[len] = '=' ;
i += uint_fmt(fmt+i, getpid()) ; fmt[i++] = 0 ;
xpathexec_r(argv+2, envp, env_len(envp), fmt, i) ;
}
}
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