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synced 2024-10-01 23:41:16 +02:00
Polish error messages, help output, give marginal clue about command line
option conventions. (E.g., "pg_passwd -?" should not write to a file named "-?".)
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parent
f999912658
commit
714384a0b2
@ -18,18 +18,23 @@ extern char *crypt(const char *, const char *);
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#endif
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char *comname;
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static void usage(FILE *stream);
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#define PG_PASSWD_LEN 13 /* not including null */
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const char * progname;
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static void usage(void);
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static void read_pwd_file(char *filename);
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static void write_pwd_file(char *filename, char *bkname);
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static void encrypt_pwd(char key[9], char salt[3], char passwd[14]);
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static void encrypt_pwd(char key[9], char salt[3], char passwd[PG_PASSWD_LEN+1]);
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static void prompt_for_username(char *username);
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static void prompt_for_password(char *prompt, char *password);
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static void
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usage(FILE *stream)
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usage(void)
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{
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fprintf(stream, "Usage: %s <password file>\n", comname);
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printf("%s manipulates flat text password files for PostgreSQL.\n\n", progname);
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printf("Usage:\n %s PASSWORD-FILE\n\n", progname);
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printf("Report bugs to <pgsql-bugs@postgresql.org>.\n");
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}
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typedef struct
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@ -97,8 +102,8 @@ try_again:
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if (line[l - 1] == '\n')
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line[l - 1] = '\0';
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else
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{ /* too long */
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fprintf(stderr, "%s: line %d: line too long.\n",
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{
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fprintf(stderr, "%s:%d: line too long\n",
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filename, npwds + 1);
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exit(1);
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}
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@ -110,7 +115,7 @@ try_again:
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if (strlen(p) == 0)
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{
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fprintf(stderr, "%s: line %d: null user name.\n",
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fprintf(stderr, "%s:%d: null user name\n",
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filename, npwds + 1);
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exit(1);
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}
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@ -121,7 +126,8 @@ try_again:
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{
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if (strcmp(pwds[i].uname, pwds[npwds].uname) == 0)
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{
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fprintf(stderr, "%s: duplicated entry.\n", pwds[npwds].uname);
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fprintf(stderr, "Duplicated entry: %s\n",
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pwds[npwds].uname);
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exit(1);
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}
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}
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@ -135,9 +141,9 @@ try_again:
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if (q != NULL)
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*(q++) = '\0';
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if (strlen(p) != 13 && strcmp(p, "+")!=0)
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if (strlen(p) != PG_PASSWD_LEN && strcmp(p, "+")!=0)
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{
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fprintf(stderr, "WARNING: %s: line %d: invalid password length.\n",
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fprintf(stderr, "%s:%d: warning: invalid password length\n",
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filename, npwds + 1);
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}
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pwds[npwds].pwd = strdup(p);
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@ -201,7 +207,7 @@ link_again:
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}
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static void
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encrypt_pwd(char key[9], char salt[3], char passwd[14])
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encrypt_pwd(char key[9], char salt[3], char passwd[PG_PASSWD_LEN + 1])
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{
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int n;
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@ -233,9 +239,9 @@ encrypt_pwd(char key[9], char salt[3], char passwd[14])
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#ifdef NOT_USED
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static int
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check_pwd(char key[9], char passwd[14])
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check_pwd(char key[9], char passwd[PG_PASSWD_LEN + 1])
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{
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char shouldbe[14];
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char shouldbe[PG_PASSWD_LEN + 1];
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char salt[3];
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salt[0] = passwd[0];
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@ -243,7 +249,7 @@ check_pwd(char key[9], char passwd[14])
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salt[2] = '\0';
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encrypt_pwd(key, salt, shouldbe);
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return strncmp(shouldbe, passwd, 13) == 0 ? 1 : 0;
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return strncmp(shouldbe, passwd, PG_PASSWD_LEN) == 0 ? 1 : 0;
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}
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#endif
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@ -314,24 +320,45 @@ prompt_for_password(char *prompt, char *password)
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int
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main(int argc, char *argv[])
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{
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static char bkname[512];
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static char bkname[MAXPGPATH];
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char *filename;
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char username[9];
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char salt[3];
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char key[9],
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key2[9];
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char e_passwd[14];
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char e_passwd[PG_PASSWD_LEN + 1];
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int i;
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comname = argv[0];
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progname = argv[0];
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if (argc != 2)
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{
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usage(stderr);
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fprintf(stderr, "%s: too %s arguments\nTry '%s -?' for help.\n",
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progname, argc > 2 ? "many" : "few", progname);
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exit(1);
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}
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if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
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{
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usage();
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exit(0);
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}
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if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
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{
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puts("pg_passwd (PostgreSQL) " PG_VERSION);
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exit(0);
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}
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if (argv[1][0] == '-')
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{
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fprintf(stderr, "%s: invalid option: %s\nTry '%s -?' for help.\n",
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progname, argv[1], progname);
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exit(1);
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}
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filename = argv[1];
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/* open file */
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read_pwd_file(argv[1]);
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read_pwd_file(filename);
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/* ask for the user name and the password */
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prompt_for_username(username);
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@ -339,7 +366,7 @@ main(int argc, char *argv[])
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prompt_for_password("Re-enter new password: ", key2);
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if (strncmp(key, key2, 8) != 0)
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{
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fprintf(stderr, "Password mismatch.\n");
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fprintf(stderr, "Password mismatch\n");
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exit(1);
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}
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salt[0] = '\0';
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@ -358,7 +385,7 @@ main(int argc, char *argv[])
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{ /* did not exist */
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if (npwds == MAXPWDS)
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{
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fprintf(stderr, "%s: cannot handle so may entries.\n", comname);
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fprintf(stderr, "Cannot handle so may entries\n");
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exit(1);
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}
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pwds[npwds].uname = strdup(username);
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@ -368,8 +395,8 @@ main(int argc, char *argv[])
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}
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/* write back the file */
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sprintf(bkname, "%s.bk", argv[1]);
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write_pwd_file(argv[1], bkname);
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sprintf(bkname, "%s.bk", filename);
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write_pwd_file(filename, bkname);
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return 0;
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}
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