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- /*
- * htpasswd.c: simple program for manipulating password file for NCSA httpd
- *
- * Rob McCool
- *
- * DOS version (for Windows & NT) by Bob Denny (denny@netcom.com)
- * Developed under Borland C++ V4 (Windows) with DOS target. Asserts
- * that the Borland compiler is being used.
- */
-
-
- #include <sys/types.h>
- #include <stdio.h>
- #include <string.h>
-
- //(rbd)+
- #if defined __MSDOS__
- # if !defined __BORLANDC__
- # error This may not work on non-Borland compiler(s)
- # else
- # include <signal.h>
- # include <conio.h>
- # endif
- #else
- # include <signal.h>
- #endif
- //(rbd)-
-
- #define LF 10
- #define CR 13
-
- #define MAX_STRING_LEN 256
-
- char *tn;
-
- char *strd(char *s) {
- char *d;
-
- d=(char *)malloc(strlen(s) + 1);
- strcpy(d,s);
- return(d);
- }
-
- void getword(char *word, char *line, char stop) {
- int x = 0,y;
-
- for(x=0;((line[x]) && (line[x] != stop));x++)
- word[x] = line[x];
-
- word[x] = '\0';
- if(line[x]) ++x;
- y=0;
-
- while(line[y++] = line[x++]);
- }
-
- int getline(char *s, int n, FILE *f) {
- register int i=0;
-
- while(1) {
- s[i] = (char)fgetc(f);
-
- if(s[i] == CR)
- s[i] = fgetc(f);
-
- if((s[i] == 0x4) || (s[i] == LF) || (i == (n-1))) {
- s[i] = '\0';
- return (feof(f) ? 1 : 0);
- }
- ++i;
- }
- }
-
- void putline(FILE *f,char *l) {
- int x;
-
- for(x=0;l[x];x++) fputc(l[x],f);
- fputc('\n',f);
- }
-
-
- /* From local_passwd.c (C) Regents of Univ. of California blah blah */
- static unsigned char itoa64[] = /* 0 ... 63 => ascii - 64 */
- "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
- to64(s, v, n)
- register char *s;
- #if defined __MSDOS__ // (rbd)+
- register int v; // rand() returns int
- #else // (rbd)-
- register long v;
- #endif // (rbd)
- register int n;
- {
- while (--n >= 0) {
- *s++ = itoa64[v&0x3f];
- v >>= 6;
- }
- }
-
- #if !defined __MSDOS__ // (rbd)
- char *getpass(char *prompt); /* ugh */
- #endif // (rbd)
- char *crypt(char *pw, char *salt); /* why aren't these prototyped in include */
-
-
- void add_password(char *user, FILE *f) {
- char *pw, *cpw, salt[3];
- #if defined __MSDOS__ // (rbd)+
- pw = strdup((char *)getpass("New password:"));
- #else // (rbd)-
- pw = strd(getpass("New password:"));
- #endif // (rbd)
- if(strcmp(pw, (char *)getpass("Re-type new password:"))) { // (rbd)
- fprintf(stderr,"They don't match, sorry.\n");
- if(tn)
- unlink(tn);
- exit(1);
- }
-
- (void)srand((int)time((time_t *)NULL));
- to64(&salt[0], rand(), 2);
- cpw = crypt(pw,salt);
- free(pw);
- fprintf(f,"%s:%s\n",user,cpw);
- }
-
- void usage() {
- fprintf(stderr,"Usage: htpasswd [-c] passwordfile username\n");
- fprintf(stderr,"The -c flag creates a new file.\n");
- exit(1);
- }
-
- void interrupted() {
- fprintf(stderr,"Interrupted.\n");
- if(tn) unlink(tn);
- exit(1);
- }
-
- main(int argc, char *argv[]) {
- FILE *tfp,*f;
- char user[MAX_STRING_LEN];
- char line[MAX_STRING_LEN];
- char l[MAX_STRING_LEN];
- char w[MAX_STRING_LEN];
- char command[MAX_STRING_LEN];
- int found;
-
- tn = NULL;
- signal(SIGINT,(void (*)())interrupted);
- if(argc == 4) {
- if(strcmp(argv[1],"-c"))
- usage();
- if(!(tfp = fopen(argv[2],"w"))) {
- fprintf(stderr,"Could not open passwd file %s for writing.\n",
- argv[2]);
- perror("fopen");
- exit(1);
- }
- printf("Adding password for %s.\n",argv[3]);
- add_password(argv[3],tfp);
- fclose(tfp);
- exit(0);
- } else if(argc != 3) usage();
-
- tn = tmpnam(NULL);
- if(!(tfp = fopen(tn,"w"))) {
- fprintf(stderr,"Could not open temp file.\n");
- exit(1);
- }
-
- if(!(f = fopen(argv[1],"r"))) {
- fprintf(stderr,
- "Could not open passwd file %s for reading.\n",argv[1]);
- fprintf(stderr,"Use -c option to create new one.\n");
- exit(1);
- }
- strcpy(user,argv[2]);
-
- found = 0;
- while(!(getline(line,MAX_STRING_LEN,f))) {
- if(found || (line[0] == '#') || (!line[0])) {
- putline(tfp,line);
- continue;
- }
- strcpy(l,line);
- getword(w,l,':');
- if(strcmp(user,w)) {
- putline(tfp,line);
- continue;
- }
- else {
- printf("Changing password for user %s\n",user);
- add_password(user,tfp);
- found = 1;
- }
- }
- if(!found) {
- printf("Adding user %s\n",user);
- add_password(user,tfp);
- }
- fclose(f);
- fclose(tfp);
- #if defined __MSDOS__ // (rbd)+
- sprintf(command, "copy %s %s", tn, argv[1]);
- #else // (rbd)-
- sprintf(command,"cp %s %s",tn,argv[1]);
- #endif // (rbd)
- system(command);
- unlink(tn);
- }
-