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Fix from Matt Kraai -- a better way to NULL terminate strings for the

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my_* passwd and group routines.  I should have thought of doing it
this way...
This commit is contained in:
Eric Andersen 2000-12-13 01:52:39 +00:00
parent 77508b29fa
commit bd193a42a5
13 changed files with 26 additions and 50 deletions
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2
archival/tar.c
View File

@ -691,13 +691,11 @@ extern int readTarFile(int tarFd, int extractFlag, int listFlag,
struct tm *tm = localtime (&(header.mtime));
len=printf("%s ", mode_string(header.mode));
memset(buf, 0, 8*sizeof(char));
my_getpwuid(buf, header.uid);
if (! *buf)
len+=printf("%d", header.uid);
else
len+=printf("%s", buf);
memset(buf, 0, 8*sizeof(char));
my_getgrgid(buf, header.gid);
if (! *buf)
len+=printf("/%-d ", header.gid);

12
coreutils/id.c
View File

@ -31,12 +31,11 @@
extern int id_main(int argc, char **argv)
{
int no_user = 0, no_group = 0, print_real = 0;
char *cp, *user, *group;
char user[9], group[9];
long gid;
long pwnam, grnam;
int opt;
cp = user = group = NULL;
gid = 0;
while ((opt = getopt(argc, argv, "ugr")) > 0) {
@ -57,11 +56,7 @@ extern int id_main(int argc, char **argv)
if (no_user && no_group) usage(id_usage);
user = argv[optind];
if (user == NULL) {
user = xcalloc(9, sizeof(char));
group = xcalloc(9, sizeof(char));
if (argv[optind] == NULL) {
if (print_real) {
my_getpwuid(user, getuid());
my_getgrgid(group, getgid());
@ -70,7 +65,8 @@ extern int id_main(int argc, char **argv)
my_getgrgid(group, getegid());
}
} else {
group = xcalloc(9, sizeof(char));
strncpy(user, argv[optind], 8);
user[8] = '\0';
gid = my_getpwnamegid(user);
my_getgrgid(group, gid);
}

4
coreutils/logname.c
View File

@ -25,13 +25,13 @@
extern int logname_main(int argc, char **argv)
{
char *user = xmalloc(9);
char user[9];
if (argc > 1)
usage(logname_usage);
my_getpwuid(user, geteuid());
if (user) {
if (*user) {
puts(user);
return EXIT_SUCCESS;
}

2
coreutils/ls.c
View File

@ -600,13 +600,11 @@ int list_single(struct dnode *dn)
break;
case LIST_ID_NAME:
#ifdef BB_FEATURE_LS_USERNAME
memset(scratch, 0, sizeof(scratch));
my_getpwuid(scratch, dn->dstat.st_uid);
if (*scratch)
fprintf(stdout, "%-8.8s ", scratch);
else
fprintf(stdout, "%-8d ", dn->dstat.st_uid);
memset(scratch, 0, sizeof(scratch));
my_getgrgid(scratch, dn->dstat.st_gid);
if (*scratch)
fprintf(stdout, "%-8.8s", scratch);

4
coreutils/whoami.c
View File

@ -26,14 +26,14 @@
extern int whoami_main(int argc, char **argv)
{
char *user = xmalloc(9);
char user[9];
uid_t uid = geteuid();
if (argc > 1)
usage(whoami_usage);
my_getpwuid(user, uid);
if (user) {
if (*user) {
puts(user);
return EXIT_SUCCESS;
}

12
id.c
View File

@ -31,12 +31,11 @@
extern int id_main(int argc, char **argv)
{
int no_user = 0, no_group = 0, print_real = 0;
char *cp, *user, *group;
char user[9], group[9];
long gid;
long pwnam, grnam;
int opt;
cp = user = group = NULL;
gid = 0;
while ((opt = getopt(argc, argv, "ugr")) > 0) {
@ -57,11 +56,7 @@ extern int id_main(int argc, char **argv)
if (no_user && no_group) usage(id_usage);
user = argv[optind];
if (user == NULL) {
user = xcalloc(9, sizeof(char));
group = xcalloc(9, sizeof(char));
if (argv[optind] == NULL) {
if (print_real) {
my_getpwuid(user, getuid());
my_getgrgid(group, getgid());
@ -70,7 +65,8 @@ extern int id_main(int argc, char **argv)
my_getgrgid(group, getegid());
}
} else {
group = xcalloc(9, sizeof(char));
strncpy(user, argv[optind], 8);
user[8] = '\0';
gid = my_getpwnamegid(user);
my_getgrgid(group, gid);
}

4
logname.c
View File

@ -25,13 +25,13 @@
extern int logname_main(int argc, char **argv)
{
char *user = xmalloc(9);
char user[9];
if (argc > 1)
usage(logname_usage);
my_getpwuid(user, geteuid());
if (user) {
if (*user) {
puts(user);
return EXIT_SUCCESS;
}

2
ls.c
View File

@ -600,13 +600,11 @@ int list_single(struct dnode *dn)
break;
case LIST_ID_NAME:
#ifdef BB_FEATURE_LS_USERNAME
memset(scratch, 0, sizeof(scratch));
my_getpwuid(scratch, dn->dstat.st_uid);
if (*scratch)
fprintf(stdout, "%-8.8s ", scratch);
else
fprintf(stdout, "%-8d ", dn->dstat.st_uid);
memset(scratch, 0, sizeof(scratch));
my_getgrgid(scratch, dn->dstat.st_gid);
if (*scratch)
fprintf(stdout, "%-8.8s", scratch);

13
procps/ps.c
View File

@ -121,8 +121,8 @@ extern int ps_main(int argc, char **argv)
FILE *file;
struct dirent *entry;
char path[32], sbuf[512];
char uidName[10] = "";
char groupName[10] = "";
char uidName[9];
char groupName[9];
int len, i, c;
#ifdef BB_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
@ -146,9 +146,6 @@ extern int ps_main(int argc, char **argv)
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
"State", "Command");
while ((entry = readdir(dir)) != NULL) {
uidName[0] = '\0';
groupName[0] = '\0';
if (!isdigit(*entry->d_name))
continue;
sprintf(path, "/proc/%s/status", entry->d_name);
@ -204,8 +201,8 @@ extern int ps_main(int argc, char **argv)
pid_t num_pids;
pid_t* pid_array = NULL;
struct pid_info info;
char uidName[10] = "";
char groupName[10] = "";
char uidName[9];
char groupName[9];
#ifdef BB_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
int terminal_width = TERMINAL_WIDTH;
@ -247,8 +244,6 @@ extern int ps_main(int argc, char **argv)
"State", "Command");
for (i=1; i<pid_array[0] ; i++) {
uidName[0] = '\0';
groupName[0] = '\0';
info.pid = pid_array[i];
if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)

13
ps.c
View File

@ -121,8 +121,8 @@ extern int ps_main(int argc, char **argv)
FILE *file;
struct dirent *entry;
char path[32], sbuf[512];
char uidName[10] = "";
char groupName[10] = "";
char uidName[9];
char groupName[9];
int len, i, c;
#ifdef BB_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
@ -146,9 +146,6 @@ extern int ps_main(int argc, char **argv)
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
"State", "Command");
while ((entry = readdir(dir)) != NULL) {
uidName[0] = '\0';
groupName[0] = '\0';
if (!isdigit(*entry->d_name))
continue;
sprintf(path, "/proc/%s/status", entry->d_name);
@ -204,8 +201,8 @@ extern int ps_main(int argc, char **argv)
pid_t num_pids;
pid_t* pid_array = NULL;
struct pid_info info;
char uidName[10] = "";
char groupName[10] = "";
char uidName[9];
char groupName[9];
#ifdef BB_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
int terminal_width = TERMINAL_WIDTH;
@ -247,8 +244,6 @@ extern int ps_main(int argc, char **argv)
"State", "Command");
for (i=1; i<pid_array[0] ; i++) {
uidName[0] = '\0';
groupName[0] = '\0';
info.pid = pid_array[i];
if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)

2
tar.c
View File

@ -691,13 +691,11 @@ extern int readTarFile(int tarFd, int extractFlag, int listFlag,
struct tm *tm = localtime (&(header.mtime));
len=printf("%s ", mode_string(header.mode));
memset(buf, 0, 8*sizeof(char));
my_getpwuid(buf, header.uid);
if (! *buf)
len+=printf("%d", header.uid);
else
len+=printf("%s", buf);
memset(buf, 0, 8*sizeof(char));
my_getgrgid(buf, header.gid);
if (! *buf)
len+=printf("/%-d ", header.gid);

2
utility.c
View File

@ -957,12 +957,14 @@ long my_getgrnam(char *name)
/* gets a username given a uid */
void my_getpwuid(char *name, long uid)
{
name[0] = '\0';
my_getid("/etc/passwd", name, uid, NULL);
}
/* gets a groupname given a gid */
void my_getgrgid(char *group, long gid)
{
group[0] = '\0';
my_getid("/etc/group", group, gid, NULL);
}

4
whoami.c
View File

@ -26,14 +26,14 @@
extern int whoami_main(int argc, char **argv)
{
char *user = xmalloc(9);
char user[9];
uid_t uid = geteuid();
if (argc > 1)
usage(whoami_usage);
my_getpwuid(user, uid);
if (user) {
if (*user) {
puts(user);
return EXIT_SUCCESS;
}