shell_cmds-179.tar.gz

[apple/shell_cmds.git] / id / id.c

diff --git a/id/id.c b/id/id.c
index 5c5647f9ea0f578ce1bbbf3b5114cf2b63ec2664..2567770fdb8efce1ceb9ed243fe70934708abaaa 100644 (file)
--- a/id/id.c
+++ b/id/id.c
@@ -67,6 +67,7 @@ void  id_print(struct passwd *, int, int, int);
 void   pline(struct passwd *);
 void   pretty(struct passwd *);
 void   auditid(void);
+void   fullname(struct passwd *);
 void   group(struct passwd *, int);
 void   maclabel(void);
 void   usage(void);
@@ -86,10 +87,12 @@ main(int argc, char *argv[])
        struct passwd *pw;
        int Gflag, Mflag, Pflag, ch, gflag, id, nflag, pflag, rflag, uflag;
        int Aflag;
+       int Fflag;
        const char *myname;
 
        Gflag = Mflag = Pflag = gflag = nflag = pflag = rflag = uflag = 0;
        Aflag = 0;
+       Fflag = 0;
 
        myname = strrchr(argv[0], '/');
        myname = (myname != NULL) ? myname + 1 : argv[0];
@@ -103,13 +106,16 @@ main(int argc, char *argv[])
        }
 
        while ((ch = getopt(argc, argv,
-           (isgroups || iswhoami) ? "" : "APGMagnpru")) != -1)
+           (isgroups || iswhoami) ? "" : "AFPGMagnpru")) != -1)
                switch(ch) {
 #ifdef USE_BSM_AUDIT
                case 'A':
                        Aflag = 1;
                        break;
 #endif
+               case 'F':
+                       Fflag = 1;
+                       break;
                case 'G':
                        Gflag = 1;
                        break;
@@ -146,7 +152,7 @@ main(int argc, char *argv[])
        if (iswhoami && argc > 0)
                usage();
 
-       switch(Aflag + Gflag + Mflag + Pflag + gflag + pflag + uflag) {
+       switch(Aflag + Fflag + Gflag + Mflag + Pflag + gflag + pflag + uflag) {
        case 1:
                break;
        case 0:
@@ -169,6 +175,11 @@ main(int argc, char *argv[])
        }
 #endif
 
+       if (Fflag) {
+               fullname(pw);
+               exit(0);
+       }
+
        if (gflag) {
                id = pw ? pw->pw_gid : rflag ? getgid() : getegid();
                if (nflag && (gr = getgrgid(id)))
@@ -359,13 +370,25 @@ auditid(void)
 }
 #endif
 
+void
+fullname(struct passwd *pw)
+{
+
+       if (!pw) {
+               if ((pw = getpwuid(getuid())) == NULL)
+                       err(1, "getpwuid");
+       }
+
+       (void)printf("%s\n", pw->pw_gecos);
+}
+
 void
 group(struct passwd *pw, int nflag)
 {
        struct group *gr;
        int cnt, id, lastid, ngroups;
 #ifdef __APPLE__
-       gid_t *groups;
+       gid_t *groups = NULL;
 #else
        gid_t groups[NGROUPS + 1];
 #endif
@@ -387,7 +410,7 @@ group(struct passwd *pw, int nflag)
 #endif
        } else {
 #ifdef __APPLE__
-               groups = malloc(NGROUPS + 1);
+               groups = malloc((NGROUPS + 1) * sizeof(gid_t));
 #endif
                groups[0] = getgid();
                ngroups = getgroups(NGROUPS, groups + 1) + 1;
@@ -488,13 +511,14 @@ usage(void)
        else if (iswhoami)
                (void)fprintf(stderr, "usage: whoami\n");
        else
-               (void)fprintf(stderr, "%s\n%s%s\n%s\n%s\n%s\n%s\n%s\n",
+               (void)fprintf(stderr, "%s\n%s%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
                    "usage: id [user]",
 #ifdef USE_BSM_AUDIT
                    "       id -A\n",
 #else
                    "",
 #endif
+                   "       id -F [user]",
                    "       id -G [-n] [user]",
                    "       id -M",
                    "       id -P [user]",