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Convert lastlog(8) to {w,}eprintf()

This commit is contained in:
sin 2014-08-18 21:55:38 +01:00
parent 6af24e35f9
commit 1aaec6250a
2 changed files with 18 additions and 19 deletions
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35
lastlog.c
View File

@ -1,4 +1,5 @@
/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
@ -7,6 +8,8 @@
#include <time.h>
#include <utmp.h>
#include "util.h"
#define PASSWD "/etc/passwd"
static FILE *last;
@ -18,18 +21,20 @@ lastlog(char *user)
struct lastlog ll;
time_t lltime;
errno = 0;
if ((pwd = getpwnam(user)) == NULL) {
fprintf(stderr, "unknown user: %s\n", user);
if (errno)
weprintf("getpwnam %s:", user);
else
weprintf("unknown user: %s\n", user);
return;
}
fseek(last, pwd->pw_uid * sizeof(struct lastlog), 0);
fread(&ll, sizeof(struct lastlog), 1, last);
if (ferror(last)) {
perror("error reading lastlog");
exit(EXIT_FAILURE);
}
if (ferror(last))
eprintf("error reading lastlog\n");
/* on glibc `ll_time' can be an int32_t with compat32
* avoid compiler warning when calling ctime() */
@ -44,29 +49,23 @@ main(int argc, char **argv)
FILE *fp;
char line[512], *p;
if ((last = fopen(_PATH_LASTLOG, "r")) == NULL) {
perror(_PATH_LASTLOG);
exit(EXIT_FAILURE);
}
if ((last = fopen(_PATH_LASTLOG, "r")) == NULL)
eprintf("fopen %s:", _PATH_LASTLOG);
if (argc > 1) {
while (*++argv)
lastlog(*argv);
} else {
if ((fp = fopen(PASSWD, "r")) == NULL) {
perror(PASSWD);
exit(EXIT_FAILURE);
}
if ((fp = fopen(PASSWD, "r")) == NULL)
eprintf("fopen %s:", PASSWD);
while ((fgets(line, sizeof(line), fp)) != NULL) {
if ((p = strchr(line, ':')) == NULL) {
fputs("incorrect password file", stderr);
exit(-1);
}
if ((p = strchr(line, ':')) == NULL)
eprintf("invalid passwd entry\n");
*p = '\0';
lastlog(line);
}
if (fclose(fp))
perror(PASSWD);
weprintf("fclose %s:", PASSWD);
}
fclose(last);

2
login.c
View File

@ -79,7 +79,7 @@ main(int argc, char *argv[])
pw = getpwnam(user);
if (!pw) {
if (errno)
eprintf("getpwnam: %s:", user);
eprintf("getpwnam %s:", user);
else
eprintf("who are you?\n");
}