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pgrep: Don't segfault with no match _______ (catch up)

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--------------- Original Master Branch Commit Message:
If pgrep is run with a non-program name match and there are
no matches, it segfaults.

The testsuite thinks zero bytes sent, and zero bytes sent
because the program crashed is the same :/

References:
 commit 1aacf4af7f
 https://bugs.debian.org/894917

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2018-04-11 00:00:00 -05:00 committed by Craig Small
parent 036ab9a3dd
commit ac73415e32
2 changed files with 5 additions and 1 deletions
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4
NEWS
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@ -1,3 +1,7 @@
procps-ng-3.3.14
----------------
* pgrep: Don't segfault on non match Debian #894917
procps-ng-3.3.13
----------------
* library: Increment to 7:0:1

2
pgrep.c
View File

@ -592,7 +592,7 @@ static struct el * select_procs (int *num)
*num = matches;
if ((!opt_full) && (strlen(opt_pattern) > 15))
if ((!matches) && (!opt_full) && opt_pattern && (strlen(opt_pattern) > 15))
xwarnx(_("pattern that searches for process name longer than 15 characters will result in zero matches\n"
"Try `%s -f' option to match against the complete command line."),
program_invocation_short_name);