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avoid truncating long usernames

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This commit is contained in:
albert 2004-07-21 00:37:38 +00:00
parent f1db79c042
commit bc5df8a7de
2 changed files with 55 additions and 57 deletions
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110
ps/output.c
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@ -467,38 +467,6 @@ static int pr_vsz(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%lu", pp->vm_size);
}
/*
* internal terms: ruid euid suid fuid
* kernel vars: uid euid suid fsuid
* command args: ruid uid svuid n/a
*/
static int pr_ruser(char *restrict const outbuf, const proc_t *restrict const pp){
int width = COLWID;
if(user_is_number)
return snprintf(outbuf, COLWID, "%d", pp->ruid);
if (strlen(pp->ruser)>max_rightward)
width = max_rightward;
return snprintf(outbuf, width, "%s", pp->ruser);
}
static int pr_egroup(char *restrict const outbuf, const proc_t *restrict const pp){
if(strlen(pp->egroup)>max_rightward) return snprintf(outbuf, COLWID, "%d", pp->egid);
return snprintf(outbuf, COLWID, "%s", pp->egroup);
}
static int pr_rgroup(char *restrict const outbuf, const proc_t *restrict const pp){
if(strlen(pp->rgroup)>max_rightward) return snprintf(outbuf, COLWID, "%d", pp->rgid);
return snprintf(outbuf, COLWID, "%s", pp->rgroup);
}
static int pr_euser(char *restrict const outbuf, const proc_t *restrict const pp){
int width = COLWID;
if(user_is_number)
return snprintf(outbuf, COLWID, "%d", pp->euid);
if (strlen(pp->euser)>max_rightward)
width = max_rightward;
return snprintf(outbuf, width, "%s", pp->euser);
}
/********* maybe standard (Unix98 only defines the header) **********/
@ -584,9 +552,7 @@ static int pr_flag(char *restrict const outbuf, const proc_t *restrict const pp)
return snprintf(outbuf, COLWID, "%o", (unsigned)(pp->flags>>6U)&0x7U);
}
static int pr_euid(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%d", pp->euid);
}
// plus these: euid,ruid,egroup,rgroup (elsewhere in this file)
/*********** non-standard ***********/
@ -856,6 +822,14 @@ static int pr_sigcatch(char *restrict const outbuf, const proc_t *restrict const
}
////////////////////////////////////////////////////////////////////////////////
/*
* internal terms: ruid euid suid fuid
* kernel vars: uid euid suid fsuid
* command args: ruid uid svuid n/a
*/
static int pr_egid(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%d", pp->egid);
}
@ -868,6 +842,10 @@ static int pr_sgid(char *restrict const outbuf, const proc_t *restrict const pp)
static int pr_fgid(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%d", pp->fgid);
}
static int pr_euid(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%d", pp->euid);
}
static int pr_ruid(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%d", pp->ruid);
}
@ -878,34 +856,54 @@ static int pr_fuid(char *restrict const outbuf, const proc_t *restrict const pp)
return snprintf(outbuf, COLWID, "%d", pp->fuid);
}
static int pr_fgroup(char *restrict const outbuf, const proc_t *restrict const pp){
if(strlen(pp->fgroup)>max_rightward) return snprintf(outbuf, COLWID, "%d", pp->fgid);
return snprintf(outbuf, COLWID, "%s", pp->fgroup);
// The Open Group Base Specifications Issue 6 (IEEE Std 1003.1, 2004 Edition)
// requires that user and group names print as decimal numbers if there is
// not enough room in the column, so tough luck if you don't like it.
//
// The UNIX and POSIX way to change column width is to rename it:
// ps -o pid,user=CumbersomeUserNames -o comm
// The easy way is to directly specify the desired width:
// ps -o pid,user:19,comm
//
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);
if(len <= max_rightward) {
memcpy(outbuf, name, len+1);
return len;
}
}
return snprintf(outbuf, COLWID, "%u", u);
}
static int pr_sgroup(char *restrict const outbuf, const proc_t *restrict const pp){
if(strlen(pp->sgroup)>max_rightward) return snprintf(outbuf, COLWID, "%d", pp->sgid);
return snprintf(outbuf, COLWID, "%s", pp->sgroup);
static int pr_ruser(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->ruser, pp->ruid);
}
static int pr_euser(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->euser, pp->euid);
}
static int pr_fuser(char *restrict const outbuf, const proc_t *restrict const pp){
int width = COLWID;
if(user_is_number)
return snprintf(outbuf, COLWID, "%d", pp->fuid);
if (strlen(pp->fuser)>max_rightward)
width = max_rightward;
return snprintf(outbuf, width, "%s", pp->fuser);
return do_pr_name(outbuf, pp->fuser, pp->fuid);
}
static int pr_suser(char *restrict const outbuf, const proc_t *restrict const pp){
int width = COLWID;
if(user_is_number)
return snprintf(outbuf, COLWID, "%d", pp->suid);
if (strlen(pp->suser)>max_rightward)
width = max_rightward;
return snprintf(outbuf, width, "%s", pp->suser);
return do_pr_name(outbuf, pp->suser, pp->suid);
}
static int pr_egroup(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->egroup, pp->egid);
}
static int pr_rgroup(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->rgroup, pp->rgid);
}
static int pr_fgroup(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->fgroup, pp->fgid);
}
static int pr_sgroup(char *restrict const outbuf, const proc_t *restrict const pp){
return do_pr_name(outbuf, pp->sgroup, pp->sgid);
}
//////////////////////////////////////////////////////////////////////////////////
// TID tid LWP lwp SPID spid
static int pr_thread(char *restrict const outbuf, const proc_t *restrict const pp){
return snprintf(outbuf, COLWID, "%u", pp->tid);

2
ps/p
View File

@ -3,4 +3,4 @@
# Wow, using $* causes great pain with: ps "pid,user pcpu,pmem"
# The "$@" won't break that into 2 arguments.
#
LD_PRELOAD=../proc/libproc.so exec ./ps "$@"
LD_LIBRARY_PATH=../proc exec ./ps "$@"