diff options
author | Denis Vlasenko <vda.linux@googlemail.com> | 2008-01-06 06:26:53 +0300 |
---|---|---|
committer | Denis Vlasenko <vda.linux@googlemail.com> | 2008-01-06 06:26:53 +0300 |
commit | 56ea65ca5f30778f05c8882b04e3a94c869bbca4 (patch) | |
tree | 85a5d24ca1a86b504779b034fd9e7dbe4dfffa38 /procps | |
parent | 5fee2e1a79dc6fc05658821a86b0e7b5678a90dd (diff) |
ps: fix overflow in USER and VSZ columns
function old new delta
smart_ulltoa4 - 280 +280
smart_ulltoa5 283 408 +125
ulltoa6_and_space - 25 +25
scale 28 38 +10
bbunpack 358 366 +8
ps_main 259 261 +2
glob3 35 37 +2
fill_bounds 172 174 +2
process_stdin 456 446 -10
smart_ulltoa6 406 - -406
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 6/1 up/down: 454/-416) Total: 38 bytes
Diffstat (limited to 'procps')
-rw-r--r-- | procps/nmeter.c | 5 | ||||
-rw-r--r-- | procps/ps.c | 32 | ||||
-rw-r--r-- | procps/top.c | 72 |
3 files changed, 35 insertions, 74 deletions
diff --git a/procps/nmeter.c b/procps/nmeter.c index b846ee5b6..b8ba3facb 100644 --- a/procps/nmeter.c +++ b/procps/nmeter.c @@ -257,7 +257,10 @@ static int rdval_diskstats(const char* p, ullong *vec) static void scale(ullong ul) { char buf[5]; - smart_ulltoa5(ul, buf); + + /* see http://en.wikipedia.org/wiki/Tera */ + smart_ulltoa4(ul, buf, " kmgtpezy"); + buf[4] = '\0'; put(buf); } diff --git a/procps/ps.c b/procps/ps.c index a6c35f101..6a6a9e6d6 100644 --- a/procps/ps.c +++ b/procps/ps.c @@ -25,9 +25,9 @@ enum { MAX_WIDTH = 2*1024 }; #if ENABLE_SELINUX #define SELINIX_O_PREFIX "label," -#define DEFAULT_O_STR (SELINIX_O_PREFIX "pid,user" USE_FEATURE_PS_TIME(",time")) +#define DEFAULT_O_STR (SELINIX_O_PREFIX "pid,user" USE_FEATURE_PS_TIME(",time") ",args") #else -#define DEFAULT_O_STR ("pid,user" USE_FEATURE_PS_TIME(",time")) +#define DEFAULT_O_STR ("pid,user" USE_FEATURE_PS_TIME(",time") ",args") #endif typedef struct { @@ -188,7 +188,10 @@ static void func_pgid(char *buf, int size, const procps_status_t *ps) static void put_lu(char *buf, int size, unsigned long u) { char buf5[5]; - smart_ulltoa5( ((unsigned long long)u) << 10, buf5); + + /* see http://en.wikipedia.org/wiki/Tera */ + smart_ulltoa4( (u, buf5, " mgtpezy"); + buf5[5] = '\0'; sprintf(buf, "%.*s", size, buf5); } @@ -505,9 +508,9 @@ int ps_main(int argc, char **argv) #endif /* ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX */ if (use_selinux) - puts(" PID Context Stat Command"); + puts(" PID CONTEXT STAT COMMAND"); else - puts(" PID Uid VSZ Stat Command"); + puts(" PID USER VSZ STAT COMMAND"); while ((p = procps_scan(p, 0 | PSSCAN_PID @@ -519,7 +522,7 @@ int ps_main(int argc, char **argv) ))) { #if ENABLE_SELINUX if (use_selinux) { - len = printf("%5u %-32s %s ", + len = printf("%5u %-32.32s %s ", p->pid, p->context ? p->context : "unknown", p->state); @@ -527,12 +530,17 @@ int ps_main(int argc, char **argv) #endif { const char *user = get_cached_username(p->uid); - if (p->vsz == 0) - len = printf("%5u %-8s %s ", - p->pid, user, p->state); - else - len = printf("%5u %-8s %6lu %s ", - p->pid, user, p->vsz, p->state); + //if (p->vsz == 0) + // len = printf("%5u %-8.8s %s ", + // p->pid, user, p->state); + //else + { + char buf6[6]; + smart_ulltoa5(p->vsz, buf6, " mgtpezy"); + buf6[5] = '\0'; + len = printf("%5u %-8.8s %s %s ", + p->pid, user, buf6, p->state); + } } { diff --git a/procps/top.c b/procps/top.c index 200519162..fc393d43b 100644 --- a/procps/top.c +++ b/procps/top.c @@ -669,60 +669,10 @@ static void display_topmem_header(int scr_width) #undef str } -// Converts unsigned long long value into compact 5-char -// representation. Sixth char is always ' ' -static void smart_ulltoa6(unsigned long long ul, char buf[6]) +static void ulltoa6_and_space(unsigned long long ul, char buf[6]) { - const char *fmt; - char c; - unsigned v, u, idx = 0; - - if (ul > 99999) { // do not scale if 99999 or less - ul *= 10; - do { - ul /= 1024; - idx++; - } while (ul >= 100000); - } - v = ul; // ullong divisions are expensive, avoid them - - fmt = " 123456789"; - u = v / 10; - v = v % 10; - if (!idx) { - // 99999 or less: use "12345" format - // u is value/10, v is last digit - c = buf[0] = " 123456789"[u/1000]; - if (c != ' ') fmt = "0123456789"; - c = buf[1] = fmt[u/100%10]; - if (c != ' ') fmt = "0123456789"; - c = buf[2] = fmt[u/10%10]; - if (c != ' ') fmt = "0123456789"; - buf[3] = fmt[u%10]; - buf[4] = "0123456789"[v]; - } else { - // value has been scaled into 0..9999.9 range - // u is value, v is 1/10ths (allows for 92.1M format) - if (u >= 100) { - // value is >= 100: use "1234M', " 123M" formats - c = buf[0] = " 123456789"[u/1000]; - if (c != ' ') fmt = "0123456789"; - c = buf[1] = fmt[u/100%10]; - if (c != ' ') fmt = "0123456789"; - v = u % 10; - u = u / 10; - buf[2] = fmt[u%10]; - } else { - // value is < 100: use "92.1M" format - c = buf[0] = " 123456789"[u/10]; - if (c != ' ') fmt = "0123456789"; - buf[1] = fmt[u%10]; - buf[2] = '.'; - } - buf[3] = "0123456789"[v]; - // see http://en.wikipedia.org/wiki/Tera - buf[4] = " mgtpezy"[idx]; - } + /* see http://en.wikipedia.org/wiki/Tera */ + smart_ulltoa5(ul, buf, " mgtpezy"); buf[5] = ' '; } @@ -739,14 +689,14 @@ static NOINLINE void display_topmem_process_list(int count, int scr_width) while (--count >= 0) { // PID VSZ VSZRW RSS (SHR) DIRTY (SHR) COMMAND - smart_ulltoa6(s->pid , &line_buf[0*6]); - smart_ulltoa6(s->vsz , &line_buf[1*6]); - smart_ulltoa6(s->vszrw , &line_buf[2*6]); - smart_ulltoa6(s->rss , &line_buf[3*6]); - smart_ulltoa6(s->rss_sh , &line_buf[4*6]); - smart_ulltoa6(s->dirty , &line_buf[5*6]); - smart_ulltoa6(s->dirty_sh, &line_buf[6*6]); - smart_ulltoa6(s->stack , &line_buf[7*6]); + ulltoa6_and_space(s->pid , &line_buf[0*6]); + ulltoa6_and_space(s->vsz , &line_buf[1*6]); + ulltoa6_and_space(s->vszrw , &line_buf[2*6]); + ulltoa6_and_space(s->rss , &line_buf[3*6]); + ulltoa6_and_space(s->rss_sh , &line_buf[4*6]); + ulltoa6_and_space(s->dirty , &line_buf[5*6]); + ulltoa6_and_space(s->dirty_sh, &line_buf[6*6]); + ulltoa6_and_space(s->stack , &line_buf[7*6]); line_buf[8*6] = '\0'; if (scr_width > MIN_WIDTH) { read_cmdline(&line_buf[8*6], scr_width - MIN_WIDTH, s->pid, s->comm); |