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authorDenys Vlasenko <vda.linux@googlemail.com>2009-09-12 00:15:34 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2009-09-12 00:15:34 +0200
commit3a0f6f23286ad4352830613c6a8aea1bd56ca2d2 (patch)
tree6781fe0614bf8a544550535abca7897468bae970 /libbb
parentae357bd7138a179a1433b7d6e1aca48cc6438966 (diff)
downloadbusybox-3a0f6f23286ad4352830613c6a8aea1bd56ca2d2.tar.gz
fix read_cmdline API and a small buglet where "[comm]" may be too narrow
function old new delta func_args 25 26 +1 read_cmdline 119 114 -5 display_process_list 1462 1447 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 1/-20) Total: -19 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
-rw-r--r--libbb/procps.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/libbb/procps.c b/libbb/procps.c
index 9a8e42df7..974661785 100644
--- a/libbb/procps.c
+++ b/libbb/procps.c
@@ -464,18 +464,19 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
void FAST_FUNC read_cmdline(char *buf, int col, unsigned pid, const char *comm)
{
- ssize_t sz;
+ int sz;
char filename[sizeof("/proc//cmdline") + sizeof(int)*3];
sprintf(filename, "/proc/%u/cmdline", pid);
- sz = open_read_close(filename, buf, col);
+ sz = open_read_close(filename, buf, col - 1);
if (sz > 0) {
buf[sz] = '\0';
while (--sz >= 0 && buf[sz] == '\0')
continue;
- while (--sz >= 0)
+ do {
if ((unsigned char)(buf[sz]) < ' ')
buf[sz] = ' ';
+ } while (--sz >= 0);
} else {
snprintf(buf, col, "[%s]", comm);
}