*
* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
* - added Native Language Support
- *
*/
-#include <sys/types.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <pwd.h>
-#include <errno.h>
#include <ctype.h>
+#include <errno.h>
#include <getopt.h>
+#include <pwd.h>
#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
-#include "pamfail.h"
+#include "c.h"
+#include "env.h"
#include "islocal.h"
+#include "nls.h"
+#include "pamfail.h"
#include "setpwnam.h"
#include "strutils.h"
-#include "nls.h"
-#include "env.h"
#include "xalloc.h"
-#include "c.h"
#ifdef HAVE_LIBSELINUX
-#include <selinux/selinux.h>
-#include <selinux/av_permissions.h>
-#include "selinux_utils.h"
+# include <selinux/selinux.h>
+# include <selinux/av_permissions.h>
+# include "selinux_utils.h"
#endif
static char buf[1024];
struct finfo {
- struct passwd *pw;
- char *username;
- char *full_name;
- char *office;
- char *office_phone;
- char *home_phone;
- char *other;
+ struct passwd *pw;
+ char *username;
+ char *full_name;
+ char *office;
+ char *office_phone;
+ char *home_phone;
+ char *other;
};
-static int parse_argv (int argc, char *argv[], struct finfo *pinfo);
-static void parse_passwd (struct passwd *pw, struct finfo *pinfo);
-static void ask_info (struct finfo *oldfp, struct finfo *newfp);
-static char *prompt (char *question, char *def_val);
-static int check_gecos_string (char *msg, char *gecos);
-static int set_changed_data (struct finfo *oldfp, struct finfo *newfp);
-static int save_new_data (struct finfo *pinfo);
+static int parse_argv(int argc, char *argv[], struct finfo *pinfo);
+static void parse_passwd(struct passwd *pw, struct finfo *pinfo);
+static void ask_info(struct finfo *oldfp, struct finfo *newfp);
+static char *prompt(char *question, char *def_val);
+static int check_gecos_string(char *msg, char *gecos);
+static int set_changed_data(struct finfo *oldfp, struct finfo *newfp);
+static int save_new_data(struct finfo *pinfo);
/* we do not accept gecos field sizes longer than MAX_FIELD_SIZE */
#define MAX_FIELD_SIZE 256
static void __attribute__((__noreturn__)) usage(FILE *fp)
{
- fputs(USAGE_HEADER, fp);
- fprintf(fp, _(" %s [options] [username]\n"), program_invocation_short_name);
- fputs(USAGE_OPTIONS, fp);
- fputs(_(" -f, --full-name <full-name> real name\n"), fp);
- fputs(_(" -o, --office <office> office number\n"), fp);
- fputs(_(" -p, --office-phone <phone> office phone number\n"), fp);
- fputs(_(" -h, --home-phone <phone> home phone number\n"), fp);
- fputs(USAGE_SEPARATOR, fp);
- fputs(_(" -u, --help display this help and exit\n"), fp);
- fputs(_(" -v, --version output version information and exit\n"), fp);
- fprintf(fp, USAGE_MAN_TAIL("chfn(1)"));
- exit(fp == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+ fputs(USAGE_HEADER, fp);
+ fprintf(fp, _(" %s [options] [username]\n"), program_invocation_short_name);
+ fputs(USAGE_OPTIONS, fp);
+ fputs(_(" -f, --full-name <full-name> real name\n"), fp);
+ fputs(_(" -o, --office <office> office number\n"), fp);
+
fputs(_(" -p, --office-phone <phone> office phone number\n"), fp);
+
fputs(_(" -h, --home-phone <phone> home phone number\n"), fp);
+ fputs(USAGE_SEPARATOR, fp);
+ fputs(_(" -u, --help display this help and exit\n"), fp);
+ fputs(_(" -v, --version output version information and exit\n"), fp);
+ fprintf(fp, USAGE_MAN_TAIL("chfn(1)"));
+ exit(fp == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}
-int main (int argc, char **argv) {
- uid_t uid;
- struct finfo oldf, newf;
- int interactive;
- int status;
-
- sanitize_env();
- setlocale(LC_ALL, ""); /* both for messages and for iscntrl() below */
- bindtextdomain(PACKAGE, LOCALEDIR);
- textdomain(PACKAGE);
-
- /*
- * "oldf" contains the users original finger information.
- * "newf" contains the changed finger information, and contains NULL
- * in fields that haven't been changed.
- * in the end, "newf" is folded into "oldf".
- * the reason the new finger information is not put _immediately_ into
- * "oldf" is that on the command line, new finger information can
- * be specified before we know what user the information is being
- * specified for.
- */
- uid = getuid ();
- memset(&oldf, 0, sizeof(oldf));
- memset(&newf, 0, sizeof (newf));
-
- interactive = parse_argv (argc, argv, &newf);
- if (! newf.username) {
- parse_passwd (getpwuid (uid), &oldf);
- if (! oldf.username)
- errx(EXIT_FAILURE, _("you (user %d) don't exist."), uid);
- }
- else {
- parse_passwd (getpwnam (newf.username), &oldf);
- if (! oldf.username)
- errx(EXIT_FAILURE, _("user \"%s\" does not exist."),
- newf.username);
- }
-
- if (!(is_local(oldf.username)))
- errx(EXIT_FAILURE, _("can only change local entries"));
+int main(int argc, char **argv)
+{
+ uid_t uid;
+ struct finfo oldf, newf;
+ int interactive;
+ int status;
+
+ sanitize_env();
+ setlocale(LC_ALL, ""); /* both for messages and for iscntrl() below */
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+
+ /*
+ * "oldf" contains the users original finger information.
+ * "newf" contains the changed finger information, and contains NULL
+ * in fields that haven't been changed.
+ * in the end, "newf" is folded into "oldf".
+ *
+ * the reason the new finger information is not put _immediately_
+ * into "oldf" is that on the command line, new finger information
+ * can be specified before we know what user the information is
+ * being specified for.
+ */
+ uid = getuid();
+ memset(&oldf, 0, sizeof(oldf));
+ memset(&newf, 0, sizeof(newf));
+
+ interactive = parse_argv(argc, argv, &newf);
+ if (!newf.username) {
+ parse_passwd(getpwuid(uid), &oldf);
+ if (!oldf.username)
+ errx(EXIT_FAILURE, _("you (user %d) don't exist."),
+ uid);
+ } else {
+ parse_passwd(getpwnam(newf.username), &oldf);
+ if (!oldf.username)
+ errx(EXIT_FAILURE, _("user \"%s\" does not exist."),
+ newf.username);
+ }
+
+ if (!(is_local(oldf.username)))
+ errx(EXIT_FAILURE, _("can only change local entries"));
#ifdef HAVE_LIBSELINUX
- if (is_selinux_enabled() > 0) {
- if(uid == 0) {
- if (checkAccess(oldf.username,PASSWD__CHFN)!=0) {
- security_context_t user_context;
- if (getprevcon(&user_context) < 0)
- user_context = NULL;
-
- errx(EXIT_FAILURE, _("%s is not authorized to change "
- "the finger info of %s"),
- user_context ? : _("Unknown user context"),
- oldf.username);
+ if (is_selinux_enabled() > 0) {
+ if (uid == 0) {
+ if (checkAccess(oldf.username, PASSWD__CHFN) != 0) {
+ security_context_t user_context;
+ if (getprevcon(&user_context) < 0)
+ user_context = NULL;
+ errx(EXIT_FAILURE,
+ _("%s is not authorized to change "
+ "the finger info of %s"),
+ user_context ? : _("Unknown user context"),
+ oldf.username);
+ }
+ }
+ if (setupDefaultContext("/etc/passwd"))
+ errx(EXIT_FAILURE,
+ _("can't set default context for /etc/passwd"));
}
- }
- if (setupDefaultContext("/etc/passwd"))
- errx(EXIT_FAILURE, _("can't set default context for /etc/passwd"));
- }
#endif
- /* Reality check */
- if (uid != 0 && uid != oldf.pw->pw_uid) {
- errno = EACCES;
- err(EXIT_FAILURE, NULL);
- }
+ /* Reality check */
+ if (uid != 0 && uid != oldf.pw->pw_uid) {
+ errno = EACCES;
+ err(EXIT_FAILURE, NULL);
+ }
- printf (_("Changing finger information for %s.\n"), oldf.username);
+ printf(_("Changing finger information for %s.\n"), oldf.username);
#ifdef REQUIRE_PASSWORD
- if(uid != 0) {
- pam_handle_t *pamh = NULL;
- struct pam_conv conv = { misc_conv, NULL };
- int retcode;
-
- retcode = pam_start("chfn", oldf.username, &conv, &pamh);
- if (pam_fail_check(pamh, retcode))
- exit(EXIT_FAILURE);
-
- retcode = pam_authenticate(pamh, 0);
- if (pam_fail_check(pamh, retcode))
- exit(EXIT_FAILURE);
-
- retcode = pam_acct_mgmt(pamh, 0);
- if (retcode == PAM_NEW_AUTHTOK_REQD)
- retcode = pam_chauthtok(pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
- if (pam_fail_check(pamh, retcode))
- exit(EXIT_FAILURE);
-
- retcode = pam_setcred(pamh, 0);
- if (pam_fail_check(pamh, retcode))
- exit(EXIT_FAILURE);
-
- pam_end(pamh, 0);
- /* no need to establish a session; this isn't a session-oriented
- * activity... */
- }
-#endif /* REQUIRE_PASSWORD */
-
-
- if (interactive) ask_info (&oldf, &newf);
-
- if (! set_changed_data (&oldf, &newf)) {
- printf (_("Finger information not changed.\n"));
- return EXIT_SUCCESS;
- }
- status = save_new_data (&oldf);
- return status;
+ if (uid != 0) {
+ pam_handle_t *pamh = NULL;
+ struct pam_conv conv = { misc_conv, NULL };
+ int retcode;
+
+ retcode = pam_start("chfn", oldf.username, &conv, &pamh);
+ if (pam_fail_check(pamh, retcode))
+ exit(EXIT_FAILURE);
+
+ retcode = pam_authenticate(pamh, 0);
+ if (pam_fail_check(pamh, retcode))
+ exit(EXIT_FAILURE);
+
+ retcode = pam_acct_mgmt(pamh, 0);
+ if (retcode == PAM_NEW_AUTHTOK_REQD)
+ retcode =
+ pam_chauthtok(pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
+ if (pam_fail_check(pamh, retcode))
+ exit(EXIT_FAILURE);
+
+ retcode = pam_setcred(pamh, 0);
+ if (pam_fail_check(pamh, retcode))
+ exit(EXIT_FAILURE);
+
+ pam_end(pamh, 0);
+ /* no need to establish a session; this isn't a
+ * session-oriented activity... */
+ }
+#endif /* REQUIRE_PASSWORD */
+
+ if (interactive)
+ ask_info(&oldf, &newf);
+
+ if (!set_changed_data(&oldf, &newf)) {
+ printf(_("Finger information not changed.\n"));
+ return EXIT_SUCCESS;
+ }
+ status = save_new_data(&oldf);
+ return status;
}
/*
*/
static int parse_argv(int argc, char *argv[], struct finfo *pinfo)
{
- int index, c, status;
- int info_given;
-
- static struct option long_options[] = {
- { "full-name", required_argument, 0, 'f' },
- { "office", required_argument, 0, 'o' },
- { "office-phone", required_argument, 0, 'p' },
- { "home-phone", required_argument, 0, 'h' },
- { "help", no_argument, 0, 'u' },
- { "version", no_argument, 0, 'v' },
- { NULL, no_argument, 0, '0' },
- };
-
- optind = 0;
- info_given = false;
- while (true) {
- c = getopt_long (argc, argv, "f:r:p:h:o:uv", long_options, &index);
- if (c == -1) break;
- /* version? output version and exit. */
- if (c == 'v') {
- printf (UTIL_LINUX_VERSION);
- exit (EXIT_SUCCESS);
+ int index, c, status;
+ int info_given;
+
+ static struct option long_options[] = {
+ {"full-name", required_argument, 0, 'f'},
+ {"office", required_argument, 0, 'o'},
+ {"office-phone", required_argument, 0, 'p'},
+ {"home-phone", required_argument, 0, 'h'},
+ {"help", no_argument, 0, 'u'},
+ {"version", no_argument, 0, 'v'},
+ {NULL, no_argument, 0, '0'},
+ };
+
+ optind = 0;
+ info_given = false;
+ while (true) {
+ c = getopt_long(argc, argv, "f:r:p:h:o:uv", long_options,
+ &index);
+ if (c == -1)
+ break;
+ /* version? output version and exit. */
+ if (c == 'v') {
+ printf(UTIL_LINUX_VERSION);
+ exit(EXIT_SUCCESS);
+ }
+ if (c == 'u')
+ usage(stdout);
+ /* all other options must have an argument. */
+ if (!optarg)
+ usage(stderr);
+ /* ok, we were given an argument */
+ info_given = true;
+ status = 0;
+
+ /* now store the argument */
+ switch (c) {
+ case 'f':
+ pinfo->full_name = optarg;
+ status = check_gecos_string(_("Name"), optarg);
+ break;
+ case 'o':
+ pinfo->office = optarg;
+ status = check_gecos_string(_("Office"), optarg);
+ break;
+ case 'p':
+ pinfo->office_phone = optarg;
+ status = check_gecos_string(_("Office Phone"), optarg);
+ break;
+ case 'h':
+ pinfo->home_phone = optarg;
+ status = check_gecos_string(_("Home Phone"), optarg);
+ break;
+ default:
+ usage(stderr);
+ }
+ if (status < 0)
+ exit(status);
}
- if (c == 'u')
- usage (stdout);
- /* all other options must have an argument. */
- if (! optarg)
- usage (stderr);
- /* ok, we were given an argument */
- info_given = true;
- status = 0;
-
- /* now store the argument */
- switch (c) {
- case 'f':
- pinfo->full_name = optarg;
- status = check_gecos_string (_("Name"), optarg);
- break;
- case 'o':
- pinfo->office = optarg;
- status = check_gecos_string (_("Office"), optarg);
- break;
- case 'p':
- pinfo->office_phone = optarg;
- status = check_gecos_string (_("Office Phone"), optarg);
- break;
- case 'h':
- pinfo->home_phone = optarg;
- status = check_gecos_string (_("Home Phone"), optarg);
- break;
- default:
- usage (stderr);
+ /* done parsing arguments. check for a username. */
+ if (optind < argc) {
+ if (optind + 1 < argc)
+ usage(stderr);
+ pinfo->username = argv[optind];
}
- if (status < 0) exit (status);
- }
- /* done parsing arguments. check for a username. */
- if (optind < argc) {
- if (optind + 1 < argc)
- usage (stderr);
- pinfo->username = argv[optind];
- }
- return (! info_given);
+ return (!info_given);
}
/*
* parse_passwd () --
- * take a struct password and fill in the fields of the
- * struct finfo.
+ * take a struct password and fill in the fields of the struct finfo.
*/
static void parse_passwd(struct passwd *pw, struct finfo *pinfo)
{
- char *gecos;
- char *cp;
-
- if (pw) {
- pinfo->pw = pw;
- pinfo->username = pw->pw_name;
- /* use pw_gecos - we take a copy since PAM destroys the original */
- gecos = xstrdup(pw->pw_gecos);
- cp = (gecos ? gecos : "");
- pinfo->full_name = cp;
- cp = strchr (cp, ',');
- if (cp) { *cp = 0, cp++; } else return;
- pinfo->office = cp;
- cp = strchr (cp, ',');
- if (cp) { *cp = 0, cp++; } else return;
- pinfo->office_phone = cp;
- cp = strchr (cp, ',');
- if (cp) { *cp = 0, cp++; } else return;
- pinfo->home_phone = cp;
- /* extra fields contain site-specific information, and
- * can not be changed by this version of chfn. */
- cp = strchr (cp, ',');
- if (cp) { *cp = 0, cp++; } else return;
- pinfo->other = cp;
- }
+ char *gecos;
+ char *cp;
+
+ if (pw) {
+ pinfo->pw = pw;
+ pinfo->username = pw->pw_name;
+ /* use pw_gecos - we take a copy since PAM destroys the original */
+ gecos = xstrdup(pw->pw_gecos);
+ cp = (gecos ? gecos : "");
+ pinfo->full_name = cp;
+ cp = strchr(cp, ',');
+ if (cp) {
+ *cp = 0, cp++;
+ } else
+ return;
+ pinfo->office = cp;
+ cp = strchr(cp, ',');
+ if (cp) {
+ *cp = 0, cp++;
+ } else
+ return;
+ pinfo->office_phone = cp;
+ cp = strchr(cp, ',');
+ if (cp) {
+ *cp = 0, cp++;
+ } else
+ return;
+ pinfo->home_phone = cp;
+ /* extra fields contain site-specific information, and can
+ * not be changed by this version of chfn. */
+ cp = strchr(cp, ',');
+ if (cp) {
+ *cp = 0, cp++;
+ } else
+ return;
+ pinfo->other = cp;
+ }
}
/*
*/
static void ask_info(struct finfo *oldfp, struct finfo *newfp)
{
- newfp->full_name = prompt (_("Name"), oldfp->full_name);
- newfp->office = prompt (_("Office"), oldfp->office);
- newfp->office_phone = prompt (_("Office Phone"), oldfp->office_phone);
- newfp->home_phone = prompt (_("Home Phone"), oldfp->home_phone);
- printf ("\n");
+ newfp->full_name = prompt(_("Name"), oldfp->full_name);
+ newfp->office = prompt(_("Office"), oldfp->office);
+ newfp->office_phone = prompt(_("Office Phone"), oldfp->office_phone);
+ newfp->home_phone = prompt(_("Home Phone"), oldfp->home_phone);
+ printf("\n");
}
/*
*/
static char *prompt(char *question, char *def_val)
{
- static char *blank = "none";
- int len;
- char *ans, *cp;
-
- while (true) {
- if (! def_val) def_val = "";
- printf("%s [%s]: ", question, def_val);
- *buf = 0;
- if (fgets (buf, sizeof (buf), stdin) == NULL)
- errx (EXIT_FAILURE, _("Aborted."));
- /* remove the newline at the end of buf. */
- ans = buf;
- while (isspace (*ans)) ans++;
- len = strlen (ans);
- while (len > 0 && isspace (ans[len-1])) len--;
- if (len <= 0) return NULL;
- ans[len] = 0;
- if (! strcasecmp (ans, blank)) return "";
- if (check_gecos_string (NULL, ans) >= 0) break;
- }
- cp = (char *) xmalloc (len + 1);
- strcpy (cp, ans);
- return cp;
+ static char *blank = "none";
+ int len;
+ char *ans, *cp;
+
+ while (true) {
+ if (!def_val)
+ def_val = "";
+ printf("%s [%s]: ", question, def_val);
+ *buf = 0;
+ if (fgets(buf, sizeof(buf), stdin) == NULL)
+ errx(EXIT_FAILURE, _("Aborted."));
+ /* remove the newline at the end of buf. */
+ ans = buf;
+ while (isspace(*ans))
+ ans++;
+ len = strlen(ans);
+ while (len > 0 && isspace(ans[len - 1]))
+ len--;
+ if (len <= 0)
+ return NULL;
+ ans[len] = 0;
+ if (!strcasecmp(ans, blank))
+ return "";
+ if (check_gecos_string(NULL, ans) >= 0)
+ break;
+ }
+ cp = (char *)xmalloc(len + 1);
+ strcpy(cp, ans);
+ return cp;
}
/*
* check_gecos_string () --
* check that the given gecos string is legal. if it's not legal,
- * output "msg" followed by a description of the problem, and
- * return (-1).
+ * output "msg" followed by a description of the problem, and return (-1).
*/
static int check_gecos_string(char *msg, char *gecos)
{
- unsigned int i, c;
-
- if (strlen(gecos) > MAX_FIELD_SIZE) {
- if (msg)
- warnx (_("field %s is too long"), msg);
- else
- warnx (_("field is too long"));
- return -1;
- }
-
- for (i = 0; i < strlen (gecos); i++) {
- c = gecos[i];
- if (c == ',' || c == ':' || c == '=' || c == '"' || c == '\n') {
- if (msg)
- warnx (_("%s: '%c' is not allowed"), msg, c);
- else
- warnx (_("'%c' is not allowed"), c);
- return -1;
+ unsigned int i, c;
+
+ if (strlen(gecos) > MAX_FIELD_SIZE) {
+ if (msg)
+ warnx(_("field %s is too long"), msg);
+ else
+ warnx(_("field is too long"));
+ return -1;
}
- if (iscntrl (c)) {
- if (msg)
- warnx (_("%s: control characters are not allowed"), msg);
- else
- warnx (_("control characters are not allowed"));
- return -1;
+
+ for (i = 0; i < strlen(gecos); i++) {
+ c = gecos[i];
+ if (c == ',' || c == ':' || c == '=' || c == '"' || c == '\n') {
+ if (msg)
+ warnx(_("%s: '%c' is not allowed"), msg, c);
+ else
+ warnx(_("'%c' is not allowed"), c);
+ return -1;
+ }
+ if (iscntrl(c)) {
+ if (msg)
+ warnx(_
+ ("%s: control characters are not allowed"),
+ msg);
+ else
+ warnx(_("control characters are not allowed"));
+ return -1;
+ }
}
- }
- return 0;
+ return 0;
}
/*
*/
static int set_changed_data(struct finfo *oldfp, struct finfo *newfp)
{
- int changed = false;
-
- if (newfp->full_name) {
- oldfp->full_name = newfp->full_name; changed = true; }
- if (newfp->office) {
- oldfp->office = newfp->office; changed = true; }
- if (newfp->office_phone) {
- oldfp->office_phone = newfp->office_phone; changed = true; }
- if (newfp->home_phone) {
- oldfp->home_phone = newfp->home_phone; changed = true; }
-
- return changed;
+ int changed = false;
+
+ if (newfp->full_name) {
+ oldfp->full_name = newfp->full_name;
+ changed = true;
+ }
+ if (newfp->office) {
+ oldfp->office = newfp->office;
+ changed = true;
+ }
+ if (newfp->office_phone) {
+ oldfp->office_phone = newfp->office_phone;
+ changed = true;
+ }
+ if (newfp->home_phone) {
+ oldfp->home_phone = newfp->home_phone;
+ changed = true;
+ }
+
+ return changed;
}
/*
*/
static int save_new_data(struct finfo *pinfo)
{
- char *gecos;
- int len;
-
- /* null fields will confuse printf(). */
- if (! pinfo->full_name) pinfo->full_name = "";
- if (! pinfo->office) pinfo->office = "";
- if (! pinfo->office_phone) pinfo->office_phone = "";
- if (! pinfo->home_phone) pinfo->home_phone = "";
- if (! pinfo->other) pinfo->other = "";
-
- /* create the new gecos string */
- len = (strlen (pinfo->full_name) + strlen (pinfo->office) +
- strlen (pinfo->office_phone) + strlen (pinfo->home_phone) +
- strlen (pinfo->other) + 4);
- gecos = (char *) xmalloc (len + 1);
- sprintf (gecos, "%s,%s,%s,%s,%s", pinfo->full_name, pinfo->office,
- pinfo->office_phone, pinfo->home_phone, pinfo->other);
-
- /* remove trailing empty fields (but not subfields of pinfo->other) */
- if (! pinfo->other[0] ) {
- while (len > 0 && gecos[len-1] == ',') len--;
- gecos[len] = 0;
- }
-
- /* write the new struct passwd to the passwd file. */
- pinfo->pw->pw_gecos = gecos;
- if (setpwnam (pinfo->pw) < 0) {
- warn ("setpwnam");
- printf( _("Finger information *NOT* changed. Try again later.\n" ));
- return -1;
- }
- printf (_("Finger information changed.\n"));
- return 0;
+ char *gecos;
+ int len;
+
+ /* null fields will confuse printf(). */
+ if (!pinfo->full_name)
+ pinfo->full_name = "";
+ if (!pinfo->office)
+ pinfo->office = "";
+ if (!pinfo->office_phone)
+ pinfo->office_phone = "";
+ if (!pinfo->home_phone)
+ pinfo->home_phone = "";
+ if (!pinfo->other)
+ pinfo->other = "";
+
+ /* create the new gecos string */
+ len = (strlen(pinfo->full_name) + strlen(pinfo->office) +
+ strlen(pinfo->office_phone) + strlen(pinfo->home_phone) +
+ strlen(pinfo->other) + 4);
+ gecos = (char *)xmalloc(len + 1);
+ sprintf(gecos, "%s,%s,%s,%s,%s", pinfo->full_name, pinfo->office,
+ pinfo->office_phone, pinfo->home_phone, pinfo->other);
+
+ /* remove trailing empty fields (but not subfields of pinfo->other) */
+ if (!pinfo->other[0]) {
+ while (len > 0 && gecos[len - 1] == ',')
+ len--;
+ gecos[len] = 0;
+ }
+
+ /* write the new struct passwd to the passwd file. */
+ pinfo->pw->pw_gecos = gecos;
+ if (setpwnam(pinfo->pw) < 0) {
+ warn("setpwnam");
+ printf(_
+ ("Finger information *NOT* changed. Try again later.\n"));
+ return -1;
+ }
+ printf(_("Finger information changed.\n"));
+ return 0;
}
projects / thirdparty / util-linux.git / commitdiff
