diff options
| author | das <das@FreeBSD.org> | 2005-03-21 08:01:14 +0000 |
|---|---|---|
| committer | das <das@FreeBSD.org> | 2005-03-21 08:01:14 +0000 |
| commit | 930b2ee454d6ac2cf3665fb17ddb4c5ffbaaaea6 (patch) | |
| tree | 74e9c04a9cf4fed7661ee338e044507b60a52a0e /libexec/rexecd | |
| parent | f5e55fd6043735ac328d3781c369fad18a4473a7 (diff) | |
| download | FreeBSD-src-930b2ee454d6ac2cf3665fb17ddb4c5ffbaaaea6.zip FreeBSD-src-930b2ee454d6ac2cf3665fb17ddb4c5ffbaaaea6.tar.gz | |
Use sysconf(_SC_ARG_MAX) instead of NCARGS.
Diffstat (limited to 'libexec/rexecd')
| -rw-r--r-- | libexec/rexecd/rexecd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libexec/rexecd/rexecd.c b/libexec/rexecd/rexecd.c index a868720..ea8977f 100644 --- a/libexec/rexecd/rexecd.c +++ b/libexec/rexecd/rexecd.c @@ -132,7 +132,8 @@ main(int argc, char *argv[]) static void doit(struct sockaddr *fromp) { - char cmdbuf[NCARGS+1], *cp; + char *cmdbuf, *cp; + int maxcmdlen; char user[16], pass[16]; struct passwd *pwd; int fd, r, sd; @@ -142,6 +143,10 @@ doit(struct sockaddr *fromp) char buf[BUFSIZ], sig; int one = 1; + maxcmdlen = (int)sysconf(_SC_ARG_MAX); + if (maxcmdlen <= 0 || (cmdbuf = malloc(maxcmdlen)) == NULL) + exit(1); + (void) signal(SIGINT, SIG_DFL); (void) signal(SIGQUIT, SIG_DFL); (void) signal(SIGTERM, SIG_DFL); @@ -182,7 +187,7 @@ doit(struct sockaddr *fromp) } getstr(user, sizeof(user), "username"); getstr(pass, sizeof(pass), "password"); - getstr(cmdbuf, sizeof(cmdbuf), "command"); + getstr(cmdbuf, maxcmdlen, "command"); (void) alarm(0); if ((pwd = getpwnam(user)) == NULL || (pwd->pw_uid = 0 && no_uid_0) || |
