Author: bapt Date: Mon Jul 13 05:56:27 2015 New Revision: 285437 URL: https://svnweb.freebsd.org/changeset/base/285437
Log: Prevent potential integer overflow PR: 192971 Submitted by: David Carlier <[email protected]> Modified: head/bin/ls/ls.c Modified: head/bin/ls/ls.c ============================================================================== --- head/bin/ls/ls.c Mon Jul 13 05:13:39 2015 (r285436) +++ head/bin/ls/ls.c Mon Jul 13 05:56:27 2015 (r285437) @@ -158,6 +158,7 @@ main(int argc, char *argv[]) struct winsize win; int ch, fts_options, notused; char *p; + const char *errstr = NULL; #ifdef COLORLS char termcapbuf[1024]; /* termcap definition buffer */ char tcapbuf[512]; /* capability buffer */ @@ -170,7 +171,7 @@ main(int argc, char *argv[]) if (isatty(STDOUT_FILENO)) { termwidth = 80; if ((p = getenv("COLUMNS")) != NULL && *p != '\0') - termwidth = atoi(p); + termwidth = strtonum(p, 0, INT_MAX, &errstr); else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && win.ws_col > 0) termwidth = win.ws_col; @@ -180,9 +181,12 @@ main(int argc, char *argv[]) /* retrieve environment variable, in case of explicit -C */ p = getenv("COLUMNS"); if (p) - termwidth = atoi(p); + termwidth = strtonum(p, 0, INT_MAX, &errstr); } + if (errstr) + termwidth = 80; + fts_options = FTS_PHYSICAL; if (getenv("LS_SAMESORT")) f_samesort = 1; _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
