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/* ISC license. */
#include <skalibs/bytestr.h>
#include <skalibs/sgetopt.h>
#include <skalibs/buffer.h>
#include <skalibs/strerr2.h>
#include <skalibs/netstring.h>
#define USAGE "s6-printenv [ -n ] [ -0 | -d delimchar ]"
int main (int argc, char const *const *argv, char const *const *envp)
{
char delim = '\n' ;
int zero = 0, nl = 1 ;
PROG = "s6-printenv" ;
{
subgetopt_t l = SUBGETOPT_ZERO ;
for (;;)
{
register int opt = subgetopt_r(argc, argv, "nd:0", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'n' : nl = 0 ; break ;
case 'd' : delim = *l.arg ; break ;
case '0' : zero = 1 ; break ;
default : strerr_dieusage(100, USAGE) ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (zero) delim = 0 ;
for (; *envp ; envp++)
{
if (delim || zero)
{
if ((buffer_puts(buffer_1, *envp) < 0)
|| ((nl || envp[1]) && (buffer_put(buffer_1, &delim, 1) < 0)))
strerr_diefu1sys(111, "write to stdout") ;
}
else
{
unsigned int written = 0 ;
if (!netstring_put(buffer_1, *envp, str_len(*envp), &written))
strerr_diefu1sys(111, "write a netstring to stdout") ;
}
}
if (!buffer_flush(buffer_1))
strerr_diefu1sys(111, "write to stdout") ;
return 0 ;
}
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