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Prepare for upcoming POSIXed putenv() rewrite:

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don't allow putenv() arg be on the stack, replace putenv() with setenv()
This commit is contained in:
Andrey A. Chernov 2007-04-30 12:27:58 +00:00
parent 4063583a62
commit f03351ff2a
1 changed files with 4 additions and 4 deletions
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8
libexec/pppoed/pppoed.c
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@ -258,7 +258,7 @@ Spawn(const char *prog, const char *acname, const char *provider,
struct ng_mesg *rep = (struct ng_mesg *)msgbuf;
struct ngpppoe_sts *sts = (struct ngpppoe_sts *)(msgbuf + sizeof *rep);
struct ngpppoe_init_data *data;
char env[sizeof(HISMACADDR)+18], unknown[14], sessionid[5], *path;
char env[18], unknown[14], sessionid[5], *path;
unsigned char *macaddr;
const char *msg;
int ret, slen;
@ -352,11 +352,11 @@ Spawn(const char *prog, const char *acname, const char *provider,
/* Put the peer's MAC address in the environment */
if (sz >= sizeof(struct ether_header)) {
macaddr = ((struct ether_header *)request)->ether_shost;
snprintf(env, sizeof(env), "%s=%x:%x:%x:%x:%x:%x", HISMACADDR,
snprintf(env, sizeof(env), "%x:%x:%x:%x:%x:%x",
macaddr[0], macaddr[1], macaddr[2], macaddr[3], macaddr[4],
macaddr[5]);
if (putenv(env) != 0)
syslog(LOG_INFO, "putenv: cannot set %s: %m", env);
if (setenv(HISMACADDR, env, 1) != 0)
syslog(LOG_INFO, "setenv: cannot set %s: %m", HISMACADDR);
}
/* And send our request data to the waiting node */