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Better handling of the return from snprintf

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This commit is contained in:
Brian Somers 2001-08-18 22:46:06 +00:00
parent 1433aa5dff
commit ad96855df1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=81904
1 changed files with 8 additions and 3 deletions
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11
usr.sbin/pppctl/pppctl.c
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@ -345,7 +345,7 @@ main(int argc, char **argv)
struct sockaddr *sock;
struct sockaddr_in ifsin;
struct sockaddr_un ifsun;
int socksz, arg, fd, len, verbose, save_errno, hide1, hide1off, hide2;
int n, socksz, arg, fd, len, verbose, save_errno, hide1, hide1off, hide2;
unsigned TimeoutVal;
char *DoneWord = "x", *next, *start;
struct sigaction act, oact;
@ -404,11 +404,16 @@ main(int argc, char **argv)
for (harg = pos = 0; harg < argc; harg++)
if (harg == 0 || harg != hide2) {
if (harg == 0 || harg != hide1)
pos += snprintf(title + pos, sizeof title - pos, "%s%s",
n = snprintf(title + pos, sizeof title - pos, "%s%s",
harg ? " " : "", argv[harg]);
else if (hide1off > 1)
pos += snprintf(title + pos, sizeof title - pos, " %.*s",
n = snprintf(title + pos, sizeof title - pos, " %.*s",
hide1off, argv[harg]);
else
n = 0;
if (n < 0 || n >= sizeof title - pos)
break;
pos += n;
}
#ifdef __FreeBSD__
setproctitle("-%s", title);