#if 0
#ifndef lint
#if 0
static char sccsid[] = "@(#)util.c 8.2 (Berkeley) 4/2/94";
#endif
static const char rcsid[] =
"$FreeBSD: src/bin/rcp/util.c,v 1.9 1999/08/27 23:14:58 peter Exp $";
#endif
#endif
#include "rcp_locl.h"
RCSID("$Id$");
char *
colon(cp)
char *cp;
{
if (*cp == ':')
return (0);
for (; *cp; ++cp) {
if (*cp == ':')
return (cp);
if (*cp == '/')
return (0);
}
return (0);
}
char *
unbracket(char *cp)
{
char *ep;
if (*cp == '[') {
ep = cp + (strlen(cp) - 1);
if (*ep == ']') {
*ep = '\0';
++cp;
}
}
return (cp);
}
void
verifydir(cp)
char *cp;
{
struct stat stb;
if (!stat(cp, &stb)) {
if (S_ISDIR(stb.st_mode))
return;
errno = ENOTDIR;
}
run_err("%s: %s", cp, strerror(errno));
exit(1);
}
int
okname(cp0)
char *cp0;
{
int c;
unsigned char *cp;
cp = (unsigned char *)cp0;
do {
c = *cp;
if (c & 0200)
goto bad;
if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
goto bad;
} while (*++cp);
return (1);
bad: warnx("%s: invalid user name", cp0);
return (0);
}
int
susystem(s)
char *s;
{
void (*istat)(int), (*qstat)(int);
int status;
pid_t pid;
pid = fork();
switch (pid) {
case -1:
return (127);
case 0:
execl(_PATH_BSHELL, "sh", "-c", s, NULL);
_exit(127);
}
istat = signal(SIGINT, SIG_IGN);
qstat = signal(SIGQUIT, SIG_IGN);
if (waitpid(pid, &status, 0) < 0)
status = -1;
(void)signal(SIGINT, istat);
(void)signal(SIGQUIT, qstat);
return (status);
}
#ifndef roundup
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#endif
BUF *
allocbuf(bp, fd, blksize)
BUF *bp;
int fd, blksize;
{
struct stat stb;
size_t size;
char *p;
if (fstat(fd, &stb) < 0) {
run_err("fstat: %s", strerror(errno));
return (0);
}
size = roundup(stb.st_blksize, blksize);
if (size == 0)
size = blksize;
if (bp->cnt >= size)
return (bp);
if ((p = realloc(bp->buf, size)) == NULL) {
if (bp->buf)
free(bp->buf);
bp->buf = NULL;
bp->cnt = 0;
run_err("%s", strerror(errno));
return (0);
}
memset(p, 0, size);
bp->buf = p;
bp->cnt = size;
return (bp);
}
void
lostconn(signo)
int signo;
{
if (!iamremote)
warnx("lost connection");
exit(1);
}