[hackers] [ubase] Rework parsecmdline() || sin

[git]

commit cd1a3d56980cb6345acbed7ed218f7191e781081
Author: sin <s...@2f30.org>
Date:   Wed Aug 20 20:37:12 2014 +0100

    Rework parsecmdline()

diff --git a/util/proc.c b/util/proc.c
index 09597b5..9c4b503 100644
--- a/util/proc.c
+++ b/util/proc.c
@@ -19,13 +19,16 @@ parsecmdline(pid_t pid, char *buf, size_t siz)
        char path[PATH_MAX];
        ssize_t n, i;
 
-       snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
+       snprintf(path, sizeof(path), "/proc/%ld/cmdline", (long)pid);
        fd = open(path, O_RDONLY);
        if (fd < 0)
                return -1;
-       n = read(fd, buf, siz - 1);
-       if (n < 0)
-               eprintf("read %s:", path);
+       n = read(fd, buf, siz > 0 ? siz - 1 : 0);
+       if (n < 0) {
+               weprintf("read %s:", path);
+               close(fd);
+               return -1;
+       }
        if (!n) {
                close(fd);
                return -1;