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/* ISC license. */
#include <string.h>
#include <skalibs/posixplz.h>
#include <skalibs/env.h>
#include <execline/config.h>
#include <execline/execline.h>
pid_t el_modif_and_spawn (char const *const *argv, char const *var, char const *value, int doimport)
{
size_t varlen = strlen(var) ;
size_t modiflen = value ? varlen + strlen(value) + 2 : 1 ;
size_t envlen = env_len((char const *const *)environ) ;
char const *newenv[envlen + 2] ;
char modifs[modiflen] ;
if (value)
{
memcpy(modifs, var, varlen) ;
modifs[varlen] = '=' ;
memcpy(modifs + varlen + 1, value, modiflen - varlen - 1) ;
}
env_mergen(newenv, envlen + 2, (char const *const *)environ, envlen, value ? modifs : var, value ? modiflen : varlen + 1, 1) ;
if (doimport)
{
size_t m = 0 ;
char const *newargv[env_len(argv) + 6] ;
newargv[m++] = EXECLINE_BINPREFIX "importas" ;
newargv[m++] = "-ui" ;
newargv[m++] = "--" ;
newargv[m++] = var ;
newargv[m++] = var ;
while (*argv) newargv[m++] = *argv++ ;
newargv[m++] = 0 ;
return el_spawn0(newargv[0], newargv, newenv) ;
}
else return el_spawn0(argv[0], argv, newenv) ;
}
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