README 644 1216 311 710 5507543726 7760 0ustar fredfred-*-Text-*- This is pstree V 1.4. It is a small program that shows the ps listing as a tree (as the name implies...). It has several options to make selection criteria and to change the output style. It should compile under most unixes, tested are AIX, HP-UX, A/UX, SunOS, Linux (some time ago...) and others. Compilation: ------------ Take a ANSI C compiler, eg. gcc, and just enter # [g]cc -O -o pstree pstree.c There is no Makefile. Have fun, Fred pstree.c 644 1216 311 20026 5507552535 10606 0ustar fredfred/* This is pstree V1.4 written by Fred Hucht (c) 1993 * * EMail: fred@hal6000.Uni-Duisburg.DE * * Feel free to copy and redistribute in terms of the * * GNU public license. */ static char *WhatString[2]= { "@(#)pstree V1.4 by Fred Hucht (C) 1993", "@(#)EMail:fred@thp.Uni-Duisburg.DE" }; #define MAXLINE 256 #if defined(_AIX) || defined(___AIX) /* AIX 3.x */ # define HAS_TERMDEF # define PSCMD "ps -ekf" # define PSFORMAT "%s %d %d %*20c %*s %[^\n]" #elif defined(__linux) /* Linux 0.9x */ # define UID2USER # define PSCMD "ps laxw" # define PSFORMAT "%*d %d %d %d %*35c %*s %[^\n]" #elif defined(_BSD) /* Untested */ # define UID2USER # define PSCMD "ps laxw" # define PSFORMAT "%*d %*c %d %d %d %*d %*d %*d %*x %*d %d %*15c %*s %[^\n]" #elif defined(__convex) /* Convex */ # define UID2USER # define PSCMD "ps laxw" # define PSFORMAT "%*s %d %d %d %*d %*g %*d %*d %*21c %*s %[^\n]" #else /* HP-UX, A/UX etc. */ # define PSCMD "ps -ef" # define PSFORMAT "%s %d %d %*20c %*s %[^\n]" #endif #include #include #include /* For str...() */ #include /* For getopt */ #ifdef UID2USER #include struct passwd *pw; #endif #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif struct TreeChars { char *s1, /* String to intend */ *s2, /* String between header and pid */ *p, /* dito, when parent of printed childs */ c, /* Last char of s1 for line with child */ e; /* Last char of s1 for last child */ }; static struct TreeChars Ascii = { " |", "---", "-+-", '|', '\\' }, Pc850 = { " \263", "\304\304\304", "\304\302\304", '\303', '\300' }, *c; int MyPid, NProc, Ns1, Maxlevel = 0, Alignlen, Columns; short align = FALSE, showall = TRUE, soption = FALSE; char *name = "", *str = NULL; long ipid = -1; #ifdef DEBUG int debug = FALSE; #endif struct { long uid, pid, ppid; char name[9], cmd[MAXLINE]; int parent, child, pchilds, level; } *p; int getprocs() { FILE *tn; int len, i = 0; extern int errno; /* For popen() */ #ifdef UID2USER int xx; /* For testing... */ #endif char line[MAXLINE], command[] = PSCMD; if(NULL == (tn = popen(command,"r"))) { fprintf(stderr, "Problems with pipe, errno = %d\n",errno); exit (1); } #ifdef DEBUG if(debug) printf("popen:errno = %d\n",errno); #endif fgets(line, MAXLINE, tn); /* Throw away header line */ #ifdef DEBUG if(debug) fputs(line, stdout); #endif if ( NULL == (p = malloc( sizeof(*p) ))) { fprintf(stderr, "Problems with malloc.\n"); exit (1); } while(NULL != fgets(line, MAXLINE, tn) && 10 < (len = strlen(line))) { #ifdef DEBUG if(debug) {printf("len=%3d ",len); fputs(line, stdout);} #endif if ( NULL == (p = realloc(p, (i+1) * sizeof(*p) ))) { fprintf(stderr, "Problems with realloc.\n"); exit (1); } #ifdef UID2USER /* read BSD-style ps output */ sscanf(line, PSFORMAT, &p[i].uid, &p[i].pid, &p[i].ppid, p[i].cmd); pw = getpwuid(p[i].uid); strcpy(p[i].name, pw->pw_name); #else /* read SYSV-style ps output */ sscanf(line, PSFORMAT, p[i].name, &p[i].pid, &p[i].ppid, p[i].cmd); #endif #ifdef DEBUG if(debug) printf("uid=%5d, name=%8s, pid=%5d, ppid=%5d, cmd='%s'\n", p[i].uid, p[i].name, p[i].pid, p[i].ppid, p[i].cmd); #endif p[i].parent = p[i].child = FALSE; p[i].pchilds = 0; i++; } pclose(tn); return i; } #define IS_CHILD(i) (p[i].ppid == pid && p[i].pid != pid) int pstree1(long pid, int level) { int i = 0, j; while(i <= NProc && p[i].pid != pid ) i++; /* Search process */ if (i > NProc) return 1; /* Return if pid does not exist */ if(0 == strcmp(p[i].name, name) /* for -u */ || p[i].pid == ipid /* for -p */ || (soption && NULL != strstr(p[i].cmd, str) && p[i].pid != MyPid)) /* for -s */ p[i].parent = p[i].child = TRUE; p[i].level = level; if(p[i].pid == MyPid) return 0; /* Ignore my children (sh, ps)... */ for(j=0; j NProc) { fprintf(stderr, "This should not happen (2). pid=%d\n", pid); exit(1); } if (!IS_PRINTED(i)) return; /* No need to process */ for(j=0; js2[0]; nhead[j] = '\0'; Format = "%s%s%s %05d %-8s %s"; } else { nhead[0] = '\0'; Format = "%s%s%s %05d %s %s"; } sprintf(out, Format, head, p[i].pchilds ? c->p : c->s2, nhead, pid, p[i].name,p[i].cmd); out[headL] = (out[headL] == c->e) ? c->e : c->c; out[Columns] = '\0'; puts(out); if(p[i].pid == MyPid) return; /* Don't show my childs... */ if(head[headL] == c->e) head[headL] = ' '; sprintf(nhead,"%s%s", head, c->s1); nheadL = headL + Ns1; /* = strlen(nhead)-1; */ for(j=0; je; /* last child gets c->e */ pstree2(p[j].pid, nhead); } } void Pstree(long pid) { int i, r; r = pstree1(pid, 0); /* Pass 1 */ if (r) { fprintf(stderr, "Process %d does not exist!\n",pid); return; } if(align) { /* Shall output be aligned? */ for(i = 0; i < NProc; i++) if (IS_PRINTED(i) && Maxlevel < p[i].level) Maxlevel = p[i].level; Alignlen = Maxlevel * Ns1 - 1; #ifdef DEBUG if(debug) printf("Maxlevel = %d, Alignlen = %d\n",Maxlevel, Alignlen); #endif } pstree2(pid, ""); /* Pass 2 */ } void Usage(char *progname) { char *p; p = (NULL == (p = strrchr(progname,'/'))) ? progname : p+1; fprintf(stderr, "%s, %s\n\n" "Usage: %s [-a] [-g] [-u user] [-s string] [-p pid] [-w] [pid ...]\n" " -a align output\n" " -g use IBM-850 graphics chars for tree\n" " -u user show only parts containing processes of \n" " -s string show only parts containing process with in commandline\n" " -p pid show only parts containing process \n" " -w wide output, not truncated to window width\n" " pid ... process ids to start from, default 1\n" , WhatString[0]+4, WhatString[1]+4, p); exit(1); } int main(int argc, char **argv) { extern int optind; extern char *optarg; int ch; long pid; int graph = FALSE, wide = FALSE; while ((ch = getopt(argc, argv, "adghp:s:u:w?")) != EOF) switch (ch) { case 'a': align = TRUE; break;; #ifdef DEBUG case 'd': debug = TRUE; break;; #endif case 'g': graph = TRUE; break;; case 'p': showall = FALSE; ipid = atoi(optarg); break;; case 's': showall = FALSE; soption = TRUE; str = optarg; break;; case 'u': showall = FALSE; name = optarg; break;; case 'w': wide = TRUE; break;; case 'h': case '?': default : Usage(argv[0]); break;; } NProc = getprocs(); MyPid = getpid(); if(wide) Columns = MAXLINE-1; else { #ifdef HAS_TERMDEF Columns = atoi((char*)termdef(fileno(stdout),'c')); #else Columns = 80; #endif } c = graph ? &Pc850 : &Ascii; Ns1 = strlen(c->s1); #ifdef DEBUG if(debug) printf("Columns = %d\n", Columns); #endif if(Columns == 0 || Columns >= MAXLINE) Columns = MAXLINE-1; if(argc == optind) /* No pids */ Pstree(1); else while (optind < argc) { pid = (long)atoi(argv[optind]); Pstree(pid); optind++; } free(p); return 0; }