#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include "proc/version.h" // FIXME: we need to link the lib for this :-(
-void usage(void){
+static void usage(void){
fprintf(stderr,
"Usage: pmap [-r] [-x] pid...\n"
- "-r ignored (compatibility option)\n"
"-x show details\n"
);
exit(1);
}
-int one_proc(unsigned pid){
- char cmdbuf[64];
+
+static int V_option;
+static int r_option; // ignored -- for SunOS compatibility
+static int x_option;
+
+
+static const char *get_args(unsigned pid){
+ static char cmdbuf[64];
char buf[32];
int fd;
- sprintf(buf,"/proc/%u/cmdline",pid);
- if( ((fd=open(buf)) == -1) return 1;
- count = read(fd, cmdbuf, sizeof(cmdbuf)-1);
- if(count<1) return 1;
- cmdbuf[count] = '\0';
- while(count--) if(!isprint(cmdbuf[count])) cmdbuf[count]=' ';
- close(fd);
+ ssize_t count;
+
+ do{
+ sprintf(buf,"/proc/%u/cmdline",pid);
+ if( (( fd=open(buf,O_RDONLY) )) == -1) break;
+ count = read(fd, cmdbuf, sizeof(cmdbuf)-1);
+ close(fd);
+ if(count<1) break;
+ cmdbuf[count] = '\0';
+ if(!isprint(cmdbuf[0])) break;
+ while(count--) if(!isprint(cmdbuf[count])) cmdbuf[count]=' ';
+ return cmdbuf;
+ }while(0);
+
+ do{
+ char *cp;
+ sprintf(buf,"/proc/%u/stat",pid);
+ if( (( fd=open(buf,O_RDONLY) )) == -1) break;
+ count = read(fd, cmdbuf, sizeof(cmdbuf)-1);
+ close(fd);
+ if(count<1) break;
+ cmdbuf[count] = '\0';
+ while(count--) if(!isprint(cmdbuf[count])) cmdbuf[count]=' ';
+ cp = strrchr(cmdbuf,')');
+ if(!cp) break;
+ cp[0] = ']';
+ cp[1] = '\0';
+ cp = strchr(cmdbuf,'(');
+ if(!cp) break;
+ if(!isprint(cp[1])) break;
+ cp[0] = '[';
+ return cp;
+ }while(0);
+
+ return "[]"; // as good as anything
+}
+
+
+static int one_proc(unsigned pid){
+ char buf[32];
+ char mapbuf[9600];
+ unsigned long total_shared = 0ul;
+ unsigned long total_private = 0ul;
+
sprintf(buf,"/proc/%u/maps",pid);
- if( ((fd=open(buf)) == -1) return 1;
- printf("%u: %s\n", pid, cmdbuf);
+ if(!freopen(buf, "r", stdin)) return 1;
+ printf("%u: %s\n", pid, get_args(pid));
if(x_option)
- printf("Address kB Resident Shared Private Permissions Name\n");
-@@@ FIXME FIXME FIXME @@@
+ printf("Address kB Resident Shared Private Permissions Name\n");
+ while(fgets(mapbuf,sizeof mapbuf,stdin)){
+ char flags[32];
+ const char *perms;
+ char *tmp; // to clean up unprintables
+ unsigned long start, end, diff;
+ unsigned long long pgoff;
+ sscanf(mapbuf,"%lx-%lx %s %Lx", &start, &end, flags, &pgoff);
+ tmp = strchr(mapbuf,'\n');
+ if(tmp) *tmp='\0';
+ tmp = mapbuf;
+ while(*tmp){
+ if(!isprint(*tmp)) *tmp='?';
+ tmp++;
+ }
+
+ if(flags[0]=='r'){
+ if(flags[1]=='w'){
+ if(flags[2]=='x') perms = "read/write/exec";
+ else perms = "read/write ";
+ }else{
+ if(flags[2]=='x') perms = "read/exec ";
+ else perms = "read ";
+ }
+ }else{
+ if(flags[1]=='w'){
+ if(flags[2]=='x') perms = "write/exec ";
+ else perms = "write ";
+ }else{
+ if(flags[2]=='x') perms = "exec ";
+ else perms = "none ";
+ }
+ }
+ diff = end-start;
+ if(flags[3]=='s') total_shared += diff;
+ if(flags[3]=='p') total_private += diff;
+ if(x_option){
+ const char *cp = strrchr(mapbuf,'/');
+ if(cp && cp[1]) cp++;
+ if(!cp) cp = " [ anon ]"; // yeah, 1 space
+ printf(
+ (sizeof(long)==8)
+ ? "%016lx %7ld - %7ld %7ld %s %s\n"
+ : "%08lx %7ld - %7ld %7ld %s %s\n",
+ start,
+ diff>>10,
+ (flags[3]=='s') ? diff>>10 : 0,
+ (flags[3]=='p') ? diff>>10 : 0,
+ perms,
+ cp
+ );
+ }else{
+ const char *cp = strchr(mapbuf,'/');
+ if(!cp) cp = " [ anon ]"; // yeah, 2 spaces
+ printf(
+ (sizeof(long)==8)
+ ? "%016lx %6ldK %s %s\n"
+ : "%08lx %6ldK %s %s\n",
+ start,
+ diff>>10,
+ perms,
+ cp
+ );
+ }
+
+ }
+ if(x_option){
+ if(sizeof(long)==8){
+ printf("---------------- ------ ------ ------ ------\n");
+ printf(
+ "total kB %15ld - %7ld %7ld\n",
+ (total_shared + total_private) >> 10,
+ total_shared >> 10,
+ total_private >> 10
+ );
+ }else{
+ printf("-------- ------ ------ ------ ------\n");
+ printf(
+ "total kB %7ld - %7ld %7ld\n",
+ (total_shared + total_private) >> 10,
+ total_shared >> 10,
+ total_private >> 10
+ );
+ }
+ }else{
+ if(sizeof(long)==8) printf(" total %16ldK\n", (total_shared + total_private) >> 10);
+ else printf(" total %8ldK\n", (total_shared + total_private) >> 10);
+ }
+ return 0;
}
+
int main(int argc, char *argv[]){
+ unsigned *pidlist;
+ unsigned count = 0;
+ unsigned u;
+ int ret = 0;
+
+ if(argc<2) usage();
+ pidlist = malloc(sizeof(unsigned)*argc); // a bit more than needed perhaps
+
+ while(*++argv){
+ if(!strcmp("--version",*argv)){
+ V_option++;
+ continue;
+ }
+ if(**argv=='-'){
+ char *walk = *argv;
+ if(!walk[1]) usage();
+ while(*++walk){
+ switch(*walk){
+ case 'V':
+ V_option++;
+ break;
+ case 'x':
+ x_option++;
+ break;
+ case 'r':
+ r_option++;
+ break;
+ default:
+ usage();
+ }
+ }
+ }else{
+ char *walk = *argv;
+ char *endp;
+ unsigned long pid;
+ if(!strncmp("/proc/",walk,6)) walk += 6;
+ if(*walk<'0' || *walk>'9') usage();
+ pid = strtoul(walk, &endp, 0);
+ if(pid<1ul || pid>0x7ffffffful || *endp) usage();
+ pidlist[count++] = pid;
+ }
+ }
+
+ if(x_option>1 || V_option>1 || r_option>1) usage(); // dupes
+ if(V_option){
+ if(count|x_option|r_option) usage();
+ fprintf(stdout, "pmap (%s)\n", procps_version);
+ return 0;
+ }
+ if(count<1) usage(); // no processes
+
+ u=0;
+ while(u<count) ret |= one_proc(pidlist[u++]);
+
+ return ret;
}
projects / procps-ng / commitdiff