leftovers in the 3.2.4 release

NEWS

@@ -3,7 +3,9 @@ procps-3.2.3 --> procps-3.2.4
 support 64-bit MIPS with n32 binary
 sparc32 optimized for sparc32 again
 pwdx: new command -- thanks Nicholas Miell
+ps: UTF-8 username + command -- thanks Karel Zak rh134763,rh112518,rh134780
 ps: more room for some columns
+ps: tolerate SubDomain security module CONTEXT/LABEL data    #277401
 watch: passes COLUMNS and LINES in environment
 top: in batch mode, tolerate unknown $TERM -- thanks Daniel Walsh
 pkill: quiet about processes that die before kill()

pmap.c

@@ -113,11 +113,6 @@ static const char *mapping_name(proc_t *p, unsigned KLONG addr, unsigned KLONG l
   return cp;
 }
 
-
-// Overkill, but who knows what is proper? The "w" prog
-// uses the tty width to determine this.
-#define maxcmd 0xfffff
-
 static int one_proc(proc_t *p){
   char buf[32];
   char mapbuf[9600];
@@ -126,10 +121,14 @@ static int one_proc(proc_t *p){
   unsigned long total_private_readonly = 0ul;
   unsigned long total_private_writeable = 0ul;
 
+  // Overkill, but who knows what is proper? The "w" prog
+  // uses the tty width to determine this.
+  int maxcmd = 0xfffff;
+
   sprintf(buf,"/proc/%u/maps",p->tgid);
   if(!freopen(buf, "r", stdin)) return 1;
 
-  escape_command(cmdbuf, p, sizeof cmdbuf, maxcmd, ESC_ARGS|ESC_BRACKETS);
+  escape_command(cmdbuf, p, sizeof cmdbuf, &maxcmd, ESC_ARGS|ESC_BRACKETS);
   printf("%u:   %s\n", p->tgid, cmdbuf);
 
   if(!q_option && (x_option|d_option)){

proc/escape.c

@@ -8,77 +8,110 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU Library General Public License for more details.
  */                                 
+#include <stdio.h>
 #include <sys/types.h>
 #include <string.h>
 #include "procps.h"
 #include "escape.h"
 #include "readproc.h"
 
-// What it would be for a UTF-8 locale:
+#if (__GNU_LIBRARY__ >= 6)
-// "Z-------------------------------"
+# include <wchar.h>
-// "********************************"
+# include <wctype.h>
-// "********************************"
+# include <stdlib.h>  /* MB_CUR_MAX */
-// "*******************************-"
+# include <ctype.h>
-// "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"  Trailing UTF-8, and badness in 8-bit.
+# include <langinfo.h>
-// "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"  Trailing UTF-8, and safe in 8-bit.
-// "--222222222222222222222222222222"
-// ".333333333333.3.44444444555566--"  The '.' means '3', with problem chars.
-//
-// Problems include non-shortest forms, UTF-16, and non-characters.
-// The 4-byte, 5-byte, and 6-byte sequences are full of trouble too.
-
-#if 0
-/* sanitize a string, without the nice BSD library function:     */
-/* strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH)  */
-int octal_escape_str(char *restrict dst, const char *restrict src, size_t n){
-  unsigned char c;
-  char d;
-  size_t i;
-  const char codes[] =
-  "Z------abtnvfr-------------e----"
-  " *******************************"  /* better: do not print any space */
-  "****************************\\***"
-  "*******************************-"
-  "--------------------------------"
-  "********************************"
-  "********************************"
-  "********************************";
-  for(i=0; i<n;){
-    c = (unsigned char) *(src++);
-    d = codes[c];
-    switch(d){
-    case 'Z':
-      goto leave;
-    case '*':
-      i++;
-      *(dst++) = c;
-      break;
-    case '-':
-      if(i+4 > n) goto leave;
-      i += 4;
-      *(dst++) = '\\';
-      *(dst++) = "01234567"[c>>6];
-      *(dst++) = "01234567"[(c>>3)&07];
-      *(dst++) = "01234567"[c&07];
-      break;
-    default:
-      if(i+2 > n) goto leave;
-      i += 2;
-      *(dst++) = '\\';
-      *(dst++) = d;
-      break;
-    }
-  }
-leave:
-  *(dst++) = '\0';
-  return i;
-}
 #endif
 
+#if (__GNU_LIBRARY__ >= 6)
+static int escape_str_utf8(char *restrict dst, const char *restrict src, int bufsize, int *maxcells){
+  int my_cells = 0;
+  int my_bytes = 0;
+  mbstate_t s;
+  
+  memset(&s, 0, sizeof (s));
+  
+  for(;;) {
+    wchar_t wc;
+    int len = 0;
+	  
+    if(my_cells >= *maxcells || my_bytes+1 >= bufsize) 
+      break;
+    
+    if (!(len = mbrtowc (&wc, src, MB_CUR_MAX, &s)))
+      /* 'str' contains \0 */
+      break;
+    
+    if (len < 0) {
+      /* invalid multibyte sequence -- zeroize state */
+      memset (&s, 0, sizeof (s));
+      *(dst++) = '?';
+      src++;
+      my_cells++; 
+      my_bytes++;
+
+    } else if (len==1) {
+      /* non-multibyte */
+      *(dst++) = isprint(*src) ? *src : '?';
+      src++;
+      my_cells++;
+      my_bytes++;
+      
+    } else if (!iswprint(wc)) {
+      /* multibyte - no printable */
+      *(dst++) = '?';
+      src+=len;
+      my_cells++;
+      my_bytes++; 
+    
+    } else {
+      /* multibyte - printable */	
+      int wlen = wcwidth(wc);
+
+      if (wlen==0) {
+	// invisible multibyte -- we don't ignore it, because some terminal 
+	// interpret it wrong and more safe is replace it with '?'
+	*(dst++) = '?';
+	src+=len;
+	my_cells++;
+	my_bytes++;
+      } else {
+        // multibyte - printable
+        // Got space?
+        if (my_cells+wlen > *maxcells || my_bytes+1+len >= bufsize) break;
+        // 0x9b is control byte for some terminals
+        if (memchr(src, 0x9B, len)) {
+	  // unsafe multibyte
+	  *(dst++) = '?';
+	  src+=len;
+	  my_cells++;
+	  my_bytes++;
+        } else {
+	  // safe multibyte
+       	  memcpy(dst, src, len);
+	  my_cells += wlen;
+	  dst += len;
+	  my_bytes += len;
+          src += len;
+        }
+      }
+    }
+    //fprintf(stdout, "cells: %d\n", my_cells);
+  }
+  *(dst++) = '\0';
+
+  // fprintf(stderr, "maxcells: %d, my_cells; %d\n", *maxcells, my_cells);
+  
+  *maxcells -= my_cells;
+  return my_bytes;        // bytes of text, excluding the NUL
+}
+
+#endif /* __GNU_LIBRARY__  */
+
 /* sanitize a string via one-way mangle */
-int escape_str(char *restrict dst, const char *restrict src, int bufsize, int maxglyphs){
+int escape_str(char *restrict dst, const char *restrict src, int bufsize, int *maxcells){
   unsigned char c;
-  int my_glyphs = 0;
+  int my_cells = 0;
   int my_bytes = 0;
   const char codes[] =
   "Z-------------------------------"
@@ -89,20 +122,35 @@ int escape_str(char *restrict dst, const char *restrict src, int bufsize, int ma
   "********************************"
   "********************************"
   "********************************";
-
+  
-  if(bufsize > maxglyphs+1) bufsize=maxglyphs+1; // FIXME: assumes 8-bit locale
+#if (__GNU_LIBRARY__ >= 6)
+  static int utf_init=0;
+  
+  if(utf_init==0){
+     /* first call -- check if UTF stuff is usable */
+     char *enc = nl_langinfo(CODESET);
+     utf_init = enc && strcasecmp(enc, "UTF-8")==0 ? 1 : -1;
+  }
+  if (utf_init==1)
+     /* UTF8 locales */
+     return escape_str_utf8(dst, src, bufsize, maxcells);
+#endif
+		  
+  if(bufsize > *maxcells+1) bufsize=*maxcells+1; // FIXME: assumes 8-bit locale
 
   for(;;){
-    if(my_glyphs >= maxglyphs) break;
+    if(my_cells >= *maxcells || my_bytes+1 >= bufsize) 
-    if(my_bytes+1 >= bufsize) break;
+      break;
     c = (unsigned char) *(src++);
     if(!c) break;
     if(codes[c]=='-') c='?';
-    my_glyphs++;
+    my_cells++;
     my_bytes++;
     *(dst++) = c;
   }
   *(dst++) = '\0';
+  
+  *maxcells -= my_cells;
   return my_bytes;        // bytes of text, excluding the NUL
 }
 
@@ -111,34 +159,30 @@ int escape_str(char *restrict dst, const char *restrict src, int bufsize, int ma
 // escape an argv or environment string array
 //
 // bytes arg means sizeof(buf)
-int escape_strlist(char *restrict dst, const char *restrict const *restrict src, size_t bytes){
+int escape_strlist(char *restrict dst, const char *restrict const *restrict src, size_t bytes, size_t *cells){
   size_t i = 0;
 
-//if(!*src){        just never call this function without checking first
-//  do something nice
-//}
-
   for(;;){
-    i += escape_str(dst+i, *src, bytes-i, bytes-i);   // FIXME: byte/glyph
+    i += escape_str(dst+i, *src, bytes-i, cells);
     if(bytes-i < 3) break;  // need room for space, a character, and the NUL
     src++;
     if(!*src) break;  // need something to print
+    if (*cells<=1) break;  // need room for printed size of text
     dst[i++] = ' ';
+    --*cells;
   }
-  return i;    // bytes of text, excluding the NUL
+  return i;    // bytes, excluding the NUL
 }
 
 ///////////////////////////////////////////////////
 
-int escape_command(char *restrict const outbuf, const proc_t *restrict const pp, int bytes, int glyphs, unsigned flags){
+int escape_command(char *restrict const outbuf, const proc_t *restrict const pp, int bytes, int *cells, unsigned flags){
   int overhead = 0;
   int end = 0;
 
-  if(bytes > glyphs+1) bytes=glyphs+1; // FIXME: assumes 8-bit locale
-
   if(flags & ESC_ARGS){
     const char **lc = (const char**)pp->cmdline;
-    if(lc && *lc) return escape_strlist(outbuf, lc, bytes);
+    if(lc && *lc) return escape_strlist(outbuf, lc, bytes, cells);
   }
   if(flags & ESC_BRACKETS){
     overhead += 2;
@@ -147,16 +191,17 @@ int escape_command(char *restrict const outbuf, const proc_t *restrict const pp,
     if(pp->state=='Z') overhead += 10;    // chars in " <defunct>"
     else flags &= ~ESC_DEFUNCT;
   }
-  if(overhead + 1 >= bytes){  // if no room for even one byte of the command name
+  if(overhead + 1 >= *cells){  // if no room for even one byte of the command name
     // you'd damn well better have _some_ space
-    outbuf[0] = '-';
+//    outbuf[0] = '-';  // Oct23
     outbuf[1] = '\0';
     return 1;
   }
   if(flags & ESC_BRACKETS){
     outbuf[end++] = '[';
   }
-  end += escape_str(outbuf+end, pp->cmd, bytes-overhead, glyphs-overhead);
+  *cells -= overhead;
+  end += escape_str(outbuf+end, pp->cmd, bytes-overhead, cells);
 
   // Hmmm, do we want "[foo] <defunct>" or "[foo <defunct>]"?
   if(flags & ESC_BRACKETS){
@@ -166,7 +211,6 @@ int escape_command(char *restrict const outbuf, const proc_t *restrict const pp,
     memcpy(outbuf+end, " <defunct>", 10);
     end += 10;
   }
-
   outbuf[end] = '\0';
-  return end;  // bytes or glyphs, not including the NUL
+  return end;  // bytes, not including the NUL
 }

proc/escape.h

@@ -12,9 +12,9 @@ EXTERN_C_BEGIN
 #define ESC_BRACKETS 0x2  // if using cmd, put '[' and ']' around it
 #define ESC_DEFUNCT  0x4  // mark zombies with " <defunct>"
 
-extern int escape_strlist(char *restrict dst, const char *restrict const *restrict src, size_t n);
+extern int escape_strlist(char *restrict dst, const char *restrict const *restrict src, size_t n, size_t *cells);
-extern int escape_str(char *restrict dst, const char *restrict src, int bufsize, int maxglyphs);
+extern int escape_str(char *restrict dst, const char *restrict src, int bufsize, int *maxcells);
-extern int escape_command(char *restrict const outbuf, const proc_t *restrict const pp, int bytes, int glyphs, unsigned flags);
+extern int escape_command(char *restrict const outbuf, const proc_t *restrict const pp, int bytes, int *cells, unsigned flags);
 
 EXTERN_C_END
 #endif

proc/library.map

@@ -1,7 +1,7 @@
 # for --version-script
 # WTF is the syntax for this file?
 # Give me a BNF, man!
-_3_1_14 {
+_3_2_4 {
 global:
   __cyg_profile_func_enter; __cyg_profile_func_exit; main;
 

proc/readproc.c

@@ -982,8 +982,7 @@ proc_data_t *readproctab2(int(*want_proc)(proc_t *buf), int(*want_task)(proc_t *
  * On failure, returns NULL.  On success, returns 'p' and 'p' is a valid
  * and filled out proc_t structure.
  */
-proc_t * get_proc_stats(pid_t pid, proc_t *p)
+proc_t * get_proc_stats(pid_t pid, proc_t *p) {
-{
 	static char path[PATH_MAX], sbuf[1024];
 	struct stat statbuf;
 

proc/whattime.c

@@ -82,7 +82,6 @@ char *sprint_uptime(void) {
   return buf;
 }
 
-void print_uptime(void)
+void print_uptime(void) {
-{
   printf("%s\n", sprint_uptime());
 }

ps/display.c

@@ -14,6 +14,10 @@
 #include <string.h>
 #include <unistd.h>
 
+#if (__GNU_LIBRARY__ >= 6)
+# include <locale.h>
+#endif
+
 /* username lookups */
 #include <sys/types.h>
 #include <pwd.h>
@@ -541,6 +545,10 @@ static void fancy_spew(void){
 
 /***** no comment */
 int main(int argc, char *argv[]){
+#if (__GNU_LIBRARY__ >= 6)
+  setlocale (LC_CTYPE, "");
+#endif
+
 #ifdef DEBUG
   init_stack_trace(argv[0]);
 #else

ps/output.c

@@ -276,6 +276,7 @@ STIME	stime	hms or md time format
 static int forest_helper(char *restrict const outbuf){
   char *p = forest_prefix;
   char *q = outbuf;
+  int rightward=max_rightward;
   if(!*p) return 0;
   /* Arrrgh! somebody defined unix as 1 */
   if(forest_type == 'u') goto unixy;
@@ -287,7 +288,12 @@ static int forest_helper(char *restrict const outbuf){
     case '|': strcpy(q, " |  ");  break;
     case '\0': return q-outbuf;    /* redundant & not used */
     }
+    if (rightward-4 < 0) {
+      *(q+rightward)='\0';
+      return max_rightward;
+    }
     q += 4;
+    rightward -= 4;
     p++;
   }
   return q-outbuf;   /* gcc likes this here */
@@ -300,7 +306,12 @@ unixy:
     case '|': strcpy(q, "  "); break;
     case '\0': return q-outbuf;    /* redundant & not used */
     }
+    if (rightward-2 < 0) {
+      *(q+rightward)='\0';
+      return max_rightward;
+    }
     q += 2;
+    rightward -= 2;
     p++;
   }
   return q-outbuf;   /* gcc likes this here */
@@ -322,49 +333,73 @@ Modifications to the arguments are not shown.
 
 /* "command" is the same thing: long unless c */
 static int pr_args(char *restrict const outbuf, const proc_t *restrict const pp){
-  char *endp;
+  char *endp = outbuf;
   unsigned flags;
+  int rightward=max_rightward;
 
-  endp = outbuf + forest_helper(outbuf);
+  if(forest_prefix){
+    int fh = forest_helper(outbuf);
+    endp += fh;
+    rightward -= fh;
+  }
   if(bsd_c_option) flags = ESC_DEFUNCT;
   else             flags = ESC_DEFUNCT | ESC_BRACKETS | ESC_ARGS;
-  endp += escape_command(endp, pp, OUTBUF_SIZE, OUTBUF_SIZE, flags);
+  endp += escape_command(endp, pp, OUTBUF_SIZE, &rightward, flags);
 
-  if(bsd_e_option){
+  if(bsd_e_option && rightward>1){
     const char **env = (const char**)pp->environ;
     if(env && *env){
       *endp++ = ' ';
-      endp += escape_strlist(endp, env, OUTBUF_SIZE);
+      rightward--;
+      endp += escape_strlist(endp, env, OUTBUF_SIZE, &rightward);
     }
   }
-  return endp - outbuf;
+  //return endp - outbuf;
+  return max_rightward-rightward;
 }
 
 /* "ucomm" is the same thing: short unless -f */
 static int pr_comm(char *restrict const outbuf, const proc_t *restrict const pp){
-  char *endp;
+  char *endp = outbuf;
   unsigned flags;
-
+  int rightward=max_rightward;
-  endp = outbuf + forest_helper(outbuf);
+  
+  if(forest_prefix){
+    int fh = forest_helper(outbuf);
+    endp += fh;
+    rightward -= fh;
+  }
   if(unix_f_option) flags = ESC_DEFUNCT | ESC_BRACKETS | ESC_ARGS;
   else              flags = ESC_DEFUNCT;
-  endp += escape_command(endp, pp, OUTBUF_SIZE, OUTBUF_SIZE, flags);
+  endp += escape_command(endp, pp, OUTBUF_SIZE, &rightward, flags);
 
-  if(bsd_e_option){
+  if(bsd_e_option && rightward>1){
     const char **env = (const char**)pp->environ;
     if(env && *env){
       *endp++ = ' ';
-      endp += escape_strlist(endp, env, OUTBUF_SIZE);
+      rightward--;
+      endp += escape_strlist(endp, env, OUTBUF_SIZE, &rightward);
     }
   }
-  return endp - outbuf;
+  //return endp - outbuf;
+  return max_rightward-rightward;
 }
 /* Non-standard, from SunOS 5 */
 static int pr_fname(char *restrict const outbuf, const proc_t *restrict const pp){
-  char *endp;
+  char *endp = outbuf;
-  endp = outbuf + forest_helper(outbuf);
+  int rightward = max_rightward;
-  endp += escape_str(endp, pp->cmd, OUTBUF_SIZE, 8);
+  
-  return endp - outbuf;
+  if(forest_prefix){
+    int fh = forest_helper(outbuf);
+    endp += fh;
+    rightward -= fh;
+  }
+  if (rightward>8)  /* 8=default, but forest maybe feeds more */
+    rightward = 8;
+  
+  endp += escape_str(endp, pp->cmd, OUTBUF_SIZE, &rightward);
+  //return endp - outbuf;
+  return max_rightward-rightward;
 }
 
 /* elapsed wall clock time, [[dd-]hh:]mm:ss format (not same as "time") */
@@ -609,10 +644,13 @@ static int pr_wchan(char *restrict const outbuf, const proc_t *restrict const pp
  * AIX uses '-' for running processes, the location when there is
  * only one thread waiting in the kernel, and '*' when there is
  * more than one thread waiting in the kernel.
+ *
+ * The output should be truncated to maximal columns width -- overflow
+ * is not supported for the "wchan".
  */
-    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, COLWID, "-");
+    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, max_rightward+1, "-");
-    if(wchan_is_number) return snprintf(outbuf, COLWID, "%x", (unsigned)(pp->wchan) & 0xffffffu);
+    if(wchan_is_number) return snprintf(outbuf, max_rightward+1, "%x", (unsigned)(pp->wchan) & 0xffffffu);
-    return snprintf(outbuf, COLWID, "%s", lookup_wchan(pp->wchan, pp->XXXID));
+    return snprintf(outbuf, max_rightward+1, "%s", lookup_wchan(pp->wchan, pp->XXXID));
 }
 
 /* Terrible trunctuation, like BSD crap uses: I999 J999 K999 */
@@ -824,14 +862,17 @@ static int pr_wname(char *restrict const outbuf, const proc_t *restrict const pp
  * We use '-' for running processes, the location when there is
  * only one thread waiting in the kernel, and '*' when there is
  * more than one thread waiting in the kernel.
+ *
+ * The output should be truncated to maximal columns width -- overflow
+ * is not supported for the "wchan".
  */
-    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, COLWID, "-");
+    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, max_rightward+1, "-");
-    return snprintf(outbuf, COLWID, "%s", lookup_wchan(pp->wchan, pp->XXXID));
+    return snprintf(outbuf, max_rightward+1, "%s", lookup_wchan(pp->wchan, pp->XXXID));
 }
 
 static int pr_nwchan(char *restrict const outbuf, const proc_t *restrict const pp){
-    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, COLWID, "-");
+    if(!(pp->wchan & 0xffffff)) return snprintf(outbuf, max_rightward+1, "-");
-    return snprintf(outbuf, COLWID, "%x", (unsigned)(pp->wchan) & 0xffffffu);
+    return snprintf(outbuf, max_rightward+1, "%x", (unsigned)(pp->wchan) & 0xffffffu);
 }
 
 static int pr_rss(char *restrict const outbuf, const proc_t *restrict const pp){
@@ -971,11 +1012,14 @@ static int pr_fuid(char *restrict const outbuf, const proc_t *restrict const pp)
 //
 static int do_pr_name(char *restrict const outbuf, const char *restrict const name, unsigned u){
   if(!user_is_number){
-    size_t len = strlen(name);
+    int rightward = OUTBUF_SIZE;	/* max cells */
-    if(len <= max_rightward) {
+    int len;				/* real cells */
-      memcpy(outbuf, name, len+1);
+    
-      return len;
+    escape_str(outbuf, name, OUTBUF_SIZE, &rightward);
-    }
+    len = OUTBUF_SIZE-rightward;
+    
+    if(len <= (int)max_rightward)
+      return len;  /* returns number of cells */
   }
   return snprintf(outbuf, COLWID, "%u", u);
 }
@@ -1070,12 +1114,12 @@ fail:
 static int pr_t_unlimited(char *restrict const outbuf, const proc_t *restrict const pp){
   static const char *const vals[] = {"[123456789-12345] <defunct>","ps","123456789-123456"};
   (void)pp;
-  return snprintf(outbuf, COLWID, "%s", vals[lines_to_next_header%3u]);
+  return snprintf(outbuf, max_rightward+1, "%s", vals[lines_to_next_header%3u]);
 }
 static int pr_t_unlimited2(char *restrict const outbuf, const proc_t *restrict const pp){
   static const char *const vals[] = {"unlimited", "[123456789-12345] <defunct>","ps","123456789-123456"};
   (void)pp;
-  return snprintf(outbuf, COLWID, "%s", vals[lines_to_next_header%4u]);
+  return snprintf(outbuf, max_rightward+1, "%s", vals[lines_to_next_header%4u]);
 }
 
 // like "etime"
@@ -1656,6 +1700,8 @@ void show_one_proc(const proc_t *restrict const p, const format_node *restrict f
   int space    = 0;  /* amount of space we actually need to print */
   int dospace  = 0;  /* previous column determined that we need a space */
   int legit    = 0;  /* legitimately stolen extra space */
+  int sz       = 0;  /* real size of data in outbuffer */
+  int tmpspace = 0;
   char *restrict const outbuf = saved_outbuf;
   static int did_stuff = 0;  /* have we ever printed anything? */
 
@@ -1682,12 +1728,30 @@ void show_one_proc(const proc_t *restrict const p, const format_node *restrict f
   for(;;){
     legit = 0;
     /* set width suggestion which might be ignored */
-    if(likely(fmt->next)) max_rightward = fmt->width;
+//    if(likely(fmt->next)) max_rightward = fmt->width;
-    else max_rightward = active_cols-((correct>actual) ? correct : actual);
+//    else max_rightward = active_cols-((correct>actual) ? correct : actual);
+
+    if(likely(fmt->next)){
+      max_rightward = fmt->width;
+      tmpspace = 0;
+    }else{
+      tmpspace = correct-actual;
+      if (tmpspace<1){
+        tmpspace = dospace;
+        max_rightward = active_cols-actual-tmpspace;
+      }else{
+	max_rightward = active_cols - ( (correct>actual) ? correct : actual );
+      }
+    }
     max_leftward  = fmt->width + actual - correct; /* TODO check this */
+    
+//    fprintf(stderr, "cols: %d, max_rightward: %d, max_leftward: %d, actual: %d, correct: %d\n",
+//		    active_cols, max_rightward, max_leftward, actual, correct);
+    
     /* prepare data and calculate leftpad */
     if(likely(p) && likely(fmt->pr)) amount = (*fmt->pr)(outbuf,p);
     else amount = strlen(strcpy(outbuf, fmt->name)); /* AIX or headers */
+    
     switch((fmt->flags) & CF_JUST_MASK){
     case 0:  /* for AIX, assigned outside this file */
       leftpad = 0;
@@ -1720,34 +1784,18 @@ void show_one_proc(const proc_t *restrict const p, const format_node *restrict f
         if(leftpad < 0) leftpad = 0;
         break;
       }else{
-        if(fmt->next){
+        if ((active_cols-actual-tmpspace)<1)
-          outbuf[fmt->width] = '\0';  /* Must chop, more columns! */
+          outbuf[1] = '\0';  /* oops, we (mostly) lose this column... */
-        }else{
-          int chopspot;  /* place to chop */
-          int tmpspace;  /* need "space" before it is calculated below */
-          tmpspace = correct - actual;
-          if(tmpspace<1) tmpspace = dospace;
-          chopspot = active_cols-actual-tmpspace;
-          if(chopspot<1) chopspot=1;  /* oops, we (mostly) lose this column... */
-          outbuf[chopspot] = '\0';    /* chop at screen/buffer limit */
-        }
         leftpad = 0;
         break;
       }
     case CF_UNLIMITED:
-      if(unlikely(fmt->next)){
+    {
-        outbuf[fmt->width] = '\0';  /* Must chop, more columns! */
+      if(active_cols-actual-tmpspace < 1)
-      }else{
+        outbuf[1] = '\0';    /* oops, we (mostly) lose this column... */
-        int chopspot;  /* place to chop */
-        int tmpspace;  /* need "space" before it is calculated below */
-        tmpspace = correct - actual;
-        if(tmpspace<1) tmpspace = dospace;
-        chopspot = active_cols-actual-tmpspace;
-        if(chopspot<1) chopspot=1;  /* oops, we (mostly) lose this column... */
-        outbuf[chopspot] = '\0';    /* chop at screen/buffer limit */
-      }
       leftpad = 0;
       break;
+    }
     default:
       fprintf(stderr, "bad alignment code\n");
       break;
@@ -1766,16 +1814,18 @@ void show_one_proc(const proc_t *restrict const p, const format_node *restrict f
     if(space<1) space=dospace;
     if(unlikely(space>SPACE_AMOUNT)) space=SPACE_AMOUNT;  // only so much available
 
+    /* real size -- don't forget in 'amount' is number of cells */
+    sz = strlen(outbuf);
+    
     /* print data, set x position stuff */
-    amount = strlen(outbuf);  /* post-chop data width */
     if(unlikely(!fmt->next)){
       /* Last column. Write padding + data + newline all together. */
-      outbuf[amount] = '\n';
+      outbuf[sz] = '\n';
-      fwrite(outbuf-space, space+amount+1, 1, stdout);
+      fwrite(outbuf-space, space+sz+1, 1, stdout);
       break;
     }
     /* Not the last column. Write padding + data together. */
-    fwrite(outbuf-space, space+amount, 1, stdout);
+    fwrite(outbuf-space, space+sz, 1, stdout);
     actual  += space+amount;
     correct += fmt->width;
     correct += legit;        /* adjust for SIGNAL expansion */

top.c

@@ -2912,9 +2912,10 @@ static void task_show (const WIN_t *q, const proc_t *p)
          case P_CMD:
          {  char tmp[ROWBUFSIZ];
             unsigned flags;
+	    int maxcmd = q->maxcmdln;
             if (CHKw(q, Show_CMDLIN)) flags = ESC_DEFUNCT | ESC_BRACKETS | ESC_ARGS;
             else                      flags = ESC_DEFUNCT;
-            escape_command(tmp, p, sizeof tmp, q->maxcmdln, flags);
+            escape_command(tmp, p, sizeof tmp, &maxcmd, flags);
             MKCOL(q->maxcmdln, q->maxcmdln, tmp);
          }
             break;

w.c

@@ -218,7 +218,7 @@ static void showinfo(utmp_t *u, int formtype, int maxcmd, int from) {
     fputs(" ", stdout);
     if (likely(best)) {
 	char cmdbuf[512];
-	escape_command(cmdbuf, best, sizeof cmdbuf, maxcmd, ESC_ARGS);
+	escape_command(cmdbuf, best, sizeof cmdbuf, &maxcmd, ESC_ARGS);
 	fputs(cmdbuf,stdout);
     } else {
 	printf("-");