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Tito writes,

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"This patch fixes all the bugs in id previously spotted by vodz and me.
The binary size increased a bit,  but now it should work as expected."
This commit is contained in:
Glenn L McGrath
2004-09-15 03:04:08 +00:00
parent 995d96a99d
commit f15dfc5570
6 changed files with 126 additions and 108 deletions
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46
libbb/my_getgrgid.c
View File

@@ -22,48 +22,28 @@
/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
* flexible :
*
* if bufsize is > 0 char *group cannot be set to NULL
* on success groupname is written on static allocated buffer
* on failure gid as string is written to buffer and NULL is returned
* if bufsize is = 0 char *group can be set to NULL
* on success groupname is returned
* on failure NULL is returned
* if bufsize is < 0 char *group can be set to NULL
* on success groupname is returned
* on failure an error message is printed and the program exits
* if bufsize is > 0 char *group cannot be set to NULL.
* On success groupname is written on static allocated buffer group
* (and a pointer to it is returned).
* On failure gid as string is written to static allocated buffer
* group and NULL is returned.
* if bufsize is = 0 char *group can be set to NULL.
* On success groupname is returned.
* On failure NULL is returned.
* if bufsize is < 0 char *group can be set to NULL.
* On success groupname is returned.
* On failure an error message is printed and the program exits.
*/
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "libbb.h"
#include "pwd_.h"
#include "grp_.h"
/* gets a groupname given a gid */
char * my_getgrgid(char *group, long gid, int bufsize)
{
struct group *mygroup;
struct group *mygroup = getgrgid(gid);
mygroup = getgrgid(gid);
if (mygroup==NULL) {
if(bufsize > 0) {
assert(group != NULL);
snprintf(group, bufsize, "%ld", (long)gid);
}
if( bufsize < 0 ) {
bb_error_msg_and_die("unknown gid %ld", (long)gid);
}
return NULL;
} else {
if(bufsize > 0)
{
assert(group != NULL);
return safe_strncpy(group, mygroup->gr_name, bufsize);
}
return mygroup->gr_name;
}
return my_getug(group, (mygroup) ? mygroup->gr_name : (char *)mygroup, gid, bufsize, 'g');
}