ref: c8b187f9db503465460d8bafa2d7a758bbcf59ca
dir: /lib9/dirstat-posix.c/
#include "lib9.h" #include <sys/types.h> #include <sys/stat.h> #include <pwd.h> #include <grp.h> static char nullstring[] = ""; static char Enovmem[] = "out of memory"; static Dir* statconv(struct stat *s, char *name) { struct passwd *p; struct group *g; Dir *dir; int str; char *n; str = 0; p = getpwuid(s->st_uid); if(p) str += strlen(p->pw_name)+1; g = getgrgid(s->st_gid); if(g) str += strlen(g->gr_name)+1; dir = malloc(sizeof(Dir)+str); if(dir == nil){ werrstr(Enovmem); return nil; } n = (char*)dir+sizeof(Dir); dir->name = name; dir->uid = dir->gid = dir->muid = nullstring; if(p){ dir->uid = n; strcpy(n, p->pw_name); n += strlen(p->pw_name)+1; } if(g){ dir->gid = n; strcpy(n, g->gr_name); } dir->qid.type = S_ISDIR(s->st_mode)? QTDIR: QTFILE; dir->qid.path = s->st_ino; dir->qid.vers = s->st_mtime; dir->mode = (dir->qid.type<<24)|(s->st_mode&0777); dir->atime = s->st_atime; dir->mtime = s->st_mtime; dir->length = s->st_size; dir->dev = s->st_dev; dir->type = S_ISFIFO(s->st_mode)? '|': 'M'; return dir; } Dir* dirfstat(int fd) { struct stat sbuf; if(fstat(fd, &sbuf) < 0) return nil; return statconv(&sbuf, nullstring); } Dir* dirstat(char *f) { struct stat sbuf; char *p; if(stat(f, &sbuf) < 0) return nil; p = strrchr(f, '/'); if(p) p++; else p = nullstring; return statconv(&sbuf, p); }