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proxy_dns_old: use pipe2 if available, else O_CLOEXEC

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make the old code a little less lame
This commit is contained in:
rofl0r 2020-09-21 10:46:38 +01:00
parent 2ab631918d
commit e6c4764660
1 changed files with 11 additions and 2 deletions
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13
src/core.c
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@ -756,7 +756,7 @@ struct hostent* proxy_gethostbyname_old(const char *name)
char buff[256]; char buff[256];
in_addr_t addr; in_addr_t addr;
pid_t pid; pid_t pid;
int status; int status, ret;
size_t l; size_t l;
struct hostent* hp; struct hostent* hp;
@ -775,8 +775,17 @@ struct hostent* proxy_gethostbyname_old(const char *name)
while ((hp=gethostent())) while ((hp=gethostent()))
if (!strcmp(hp->h_name,name)) if (!strcmp(hp->h_name,name))
return hp; return hp;
#ifdef HAVE_PIPE2
ret = pipe2(pipe_fd, O_CLOEXEC);
#else
ret = pipe(pipe_fd);
if(ret == 0) {
fcntl(pipe_fd[0], F_SETFD, FD_CLOEXEC);
fcntl(pipe_fd[1], F_SETFD, FD_CLOEXEC);
}
#endif
if(pipe(pipe_fd)) if(ret)
goto err; goto err;
pid = fork(); pid = fork();
switch(pid) { switch(pid) {