toybox: lib/password.c annotate

annotate lib/password.c @ 1107:bbed38cf7236 draft

Fix off by one, pointed out by Ashwini Sharma.

author	Rob Landley <rob@landley.net>
date	Sun, 03 Nov 2013 17:09:33 -0600
parents	7c62d5db4484
children	f1c924e08e63

rev	line source
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	1 /* password.c - password read/update helper functions.
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	2 *
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	3 * Copyright 2012 Ashwini Kumar <ak.ashwini@gmail.com>
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	4 */
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	5
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	6 #include "toys.h"
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	7 #include "xregcomp.h"
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	8 #include <time.h>
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	9
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	10 int get_salt(char salt, char algo)
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	11 {
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	12 int i, len = 0, offset = 0;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	13 char buf[12];
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	14
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	15 if (!strcmp(algo,"des")) len = 2;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	16 else {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	17 *salt++ = '$';
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	18 if (!strcmp(algo,"md5")) {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	19 *salt++ = '1';
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	20 len = 8;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	21 } else if (!strcmp(algo,"sha256")) {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	22 *salt++ = '5';
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	23 len = 16;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	24 } else if (!strcmp(algo,"sha512")) {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	25 *salt++ = '6';
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	26 len = 16;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	27 } else return -1;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	28
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	29 *salt++ = '$';
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	30 offset = 3;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	31 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	32
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	33 // Read appropriate number of random bytes for salt
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	34 i = xopen("/dev/urandom", O_RDONLY);
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	35 xreadall(i, buf, ((len*6)+7)/8);
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	36 close(i);
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	37
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	38 // Grab 6 bit chunks and convert to characters in ./0-9a-zA-Z
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	39 for (i=0; i<len; i++) {
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	40 int bitpos = i*6, bits = bitpos/8;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	41
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	42 bits = ((buf[i]+(buf[i+1]<<8)) >> (bitpos&7)) & 0x3f;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	43 bits += 46;
1107 bbed38cf7236 Fix off by one, pointed out by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 1090 diff changeset	44 if (bits > 57) bits += 7;
bbed38cf7236 Fix off by one, pointed out by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 1090 diff changeset	45 if (bits > 90) bits += 6;
1090 7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	46
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	47 salt[i] = bits;
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	48 }
7c62d5db4484 Minor lib/password.c cleanup, described on the list. (Inline two functions.) Rob Landley <rob@landley.net> parents: 1089 diff changeset	49 salt[i] = 0;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	50
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	51 return offset;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	52 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	53
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	54 static void handle(int signo)
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	55 {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	56 //Dummy.. so that read breaks on the signal,
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	57 //instead of the applocation exit
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	58 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	59
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	60 int read_password(char * buff, int buflen, char* mesg)
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	61 {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	62 int i = 0;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	63 struct termios termio, oldtermio;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	64 struct sigaction sa, oldsa;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	65
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	66 tcgetattr(0, &oldtermio);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	67 tcflush(0, TCIFLUSH);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	68 termio = oldtermio;
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	69
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	70 memset(&sa, 0, sizeof(sa));
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	71 sa.sa_handler = handle;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	72 sigaction(SIGINT, &sa, &oldsa);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	73
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	74 termio.c_iflag &= ~(IUCLC\|IXON\|IXOFF\|IXANY);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	75 termio.c_lflag &= ~(ECHO\|ECHOE\|ECHOK\|ECHONL\|TOSTOP);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	76 tcsetattr(0, TCSANOW, &termio);
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	77
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	78 fputs(mesg, stdout);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	79 fflush(stdout);
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	80
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	81 while (1) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	82 int ret = read(0, &buff[i], 1);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	83 if ( ret < 0 ) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	84 buff[0] = 0;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	85 sigaction(SIGINT, &oldsa, NULL);
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	86 tcsetattr(0, TCSANOW, &oldtermio);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	87 xputc('\n');
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	88 fflush(stdout);
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	89 return 1;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	90 } else if (ret == 0 \|\| buff[i] == '\n' \|\| buff[i] == '\r' \|\| buflen == i+1)
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	91 {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	92 buff[i] = '\0';
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	93 break;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	94 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	95 i++;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	96 }
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	97 sigaction(SIGINT, &oldsa, NULL);
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	98 tcsetattr(0, TCSANOW, &oldtermio);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	99 puts("");
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	100 fflush(stdout);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	101 return 0;
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	102 }
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	103
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	104 static char get_nextcolon(char line, int cnt)
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	105 {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	106 while (cnt--) {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	107 if (!(line = strchr(line, ':'))) error_exit("Invalid Entry\n");
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	108 line++; //jump past the colon
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	109 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	110 return line;
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	111 }
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	112
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	113 /*update_password is used by multiple utilities to update /etc/passwd,
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	114 * /etc/shadow, /etc/group and /etc/gshadow files,
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	115 * which are used as user, group databeses
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	116 * entry can be
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	117 * 1. encrypted password, when updating user password.
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	118 * 2. complete entry for user details, when creating new user
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	119 * 3. group members comma',' separated list, when adding user to group
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	120 * 4. complete entry for group details, when creating new group
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	121 */
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	122 int update_password(char filename, char username, char* entry)
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	123 {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	124 char filenamesfx = NULL, namesfx = NULL, *shadow = NULL,
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	125 sfx = NULL, line = NULL;
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	126 FILE exfp, newfp;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	127 int ret = -1, found = 0;
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	128 struct flock lock;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	129
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	130 shadow = strstr(filename, "shadow");
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	131 filenamesfx = xmsprintf("%s+", filename);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	132 sfx = strchr(filenamesfx, '+');
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	133
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	134 exfp = fopen(filename, "r+");
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	135 if (!exfp) {
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	136 perror_msg("Couldn't open file %s",filename);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	137 goto free_storage;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	138 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	139
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	140 *sfx = '-';
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	141 ret = unlink(filenamesfx);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	142 ret = link(filename, filenamesfx);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	143 if (ret < 0) error_msg("can't create backup file");
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	144
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	145 *sfx = '+';
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	146 lock.l_type = F_WRLCK;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	147 lock.l_whence = SEEK_SET;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	148 lock.l_start = 0;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	149 lock.l_len = 0;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	150
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	151 ret = fcntl(fileno(exfp), F_SETLK, &lock);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	152 if (ret < 0) perror_msg("Couldn't lock file %s",filename);
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	153
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	154 lock.l_type = F_UNLCK; //unlocking at a later stage
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	155
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	156 newfp = fopen(filenamesfx, "w+");
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	157 if (!newfp) {
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	158 error_msg("couldn't open file for writing");
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	159 ret = -1;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	160 fclose(exfp);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	161 goto free_storage;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	162 }
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	163
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	164 ret = 0;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	165 namesfx = xmsprintf("%s:",username);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	166 while ((line = get_line(fileno(exfp))) != NULL)
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	167 {
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	168 if (strncmp(line, namesfx, strlen(namesfx)))
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	169 fprintf(newfp, "%s\n", line);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	170 else {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	171 char *current_ptr = NULL;
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	172
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	173 found = 1;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	174 if (!strcmp(toys.which->name, "passwd")) {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	175 fprintf(newfp, "%s%s:",namesfx, entry);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	176 current_ptr = get_nextcolon(line, 2); //past passwd
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	177 if (shadow) {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	178 fprintf(newfp, "%u:",(unsigned)(time(NULL))/(246060));
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	179 current_ptr = get_nextcolon(current_ptr, 1);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	180 fprintf(newfp, "%s\n",current_ptr);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	181 } else fprintf(newfp, "%s\n",current_ptr);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	182 } else if (!strcmp(toys.which->name, "groupadd") \|\|
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	183 !strcmp(toys.which->name, "addgroup")){
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	184 current_ptr = get_nextcolon(line, 3); //past gid/admin list
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	185 *current_ptr = '\0';
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	186 fprintf(newfp, "%s", line);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	187 fprintf(newfp, "%s\n", entry);
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	188 }
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	189 }
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	190 free(line);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	191 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	192 free(namesfx);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	193 if (!found) fprintf(newfp, "%s\n", entry);
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	194 fcntl(fileno(exfp), F_SETLK, &lock);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	195 fclose(exfp);
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	196
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	197 errno = 0;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	198 fflush(newfp);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	199 fsync(fileno(newfp));
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	200 fclose(newfp);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	201 rename(filenamesfx, filename);
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	202 if (errno) {
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	203 perror_msg("File Writing/Saving failed: ");
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	204 unlink(filenamesfx);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	205 ret = -1;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	206 }
626 77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	207
77d94b36aff0 Add passwd by Kyungwan Han. Rob Landley <rob@landley.net> parents: diff changeset	208 free_storage:
694 786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	209 free(filenamesfx);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	210 return ret;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style. Rob Landley <rob@landley.net> parents: 637 diff changeset	211 }
1089 77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	212
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	213 void is_valid_username(const char *name)
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	214 {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	215 regex_t rp;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	216 regmatch_t rm[1];
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	217 int eval;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	218 char regex = "^[_.A-Za-z0-9][-_.A-Za-z0-9]"; //User name REGEX
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	219
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	220 xregcomp(&rp, regex, REG_NEWLINE);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	221
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	222 /* compare string against pattern -- remember that patterns
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	223 are anchored to the beginning of the line */
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	224 eval = regexec(&rp, name, 1, rm, 0);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	225 regfree(&rp);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	226 if (!eval && !rm[0].rm_so) {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	227 int len = strlen(name);
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	228 if ((rm[0].rm_eo == len) \|\|
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	229 (rm[0].rm_eo == len - 1 && name[len - 1] == '$')) {
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	230 if (len >= LOGIN_NAME_MAX) error_exit("name is too long");
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	231 else return;
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	232 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	233 }
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	234 error_exit("'%s', not valid %sname",name,
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	235 (((toys.which->name[3] == 'g') \|\|
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	236 (toys.which->name[0] == 'g'))? "group" : "user"));
77235d224b1d Prep work for useradd by Ashwini Sharma. Rob Landley <rob@landley.net> parents: 694 diff changeset	237 }

Mercurial > hg > toybox

annotate lib/password.c @ 1107:bbed38cf7236 draft