95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
#include <postgres.h>
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#include <miscadmin.h>
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#include <libpq/password.h>
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#include <libpq/libpq.h>
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#include <storage/fd.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef HAVE_CRYPT_H
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#include <crypt.h>
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#endif
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int
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verify_password(char *auth_arg, char *user, char *password)
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{
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char *pw_file_fullname;
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FILE *pw_file;
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pw_file_fullname = (char *) palloc(strlen(DataDir) + strlen(auth_arg) + 2);
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strcpy(pw_file_fullname, DataDir);
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strcat(pw_file_fullname, "/");
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strcat(pw_file_fullname, auth_arg);
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pw_file = AllocateFile(pw_file_fullname, "r");
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if (!pw_file)
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{
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sprintf(PQerrormsg,
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"verify_password: couldn't open password file '%s'\n",
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pw_file_fullname);
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fputs(PQerrormsg, stderr);
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pqdebug("%s", PQerrormsg);
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pfree(pw_file_fullname);
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return STATUS_ERROR;
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}
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while (!feof(pw_file))
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{
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char pw_file_line[255],
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*p,
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*test_user,
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*test_pw;
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fgets(pw_file_line, sizeof(pw_file_line), pw_file);
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p = pw_file_line;
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test_user = strtok(p, ":");
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test_pw = strtok(NULL, ":");
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if (!test_user || !test_pw ||
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test_user[0] == '\0' || test_pw[0] == '\0')
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{
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continue;
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}
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/* kill the newline */
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if (test_pw[strlen(test_pw) - 1] == '\n')
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test_pw[strlen(test_pw) - 1] = '\0';
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if (strcmp(user, test_user) == 0)
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{
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/* we're outta here one way or the other. */
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FreeFile(pw_file);
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if (strcmp(crypt(password, test_pw), test_pw) == 0)
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{
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/* it matched. */
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pfree(pw_file_fullname);
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return STATUS_OK;
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}
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sprintf(PQerrormsg,
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"verify_password: password mismatch for '%s'.\n",
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user);
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fputs(PQerrormsg, stderr);
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pqdebug("%s", PQerrormsg);
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pfree(pw_file_fullname);
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return STATUS_ERROR;
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}
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}
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sprintf(PQerrormsg,
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"verify_password: user '%s' not found in password file.\n",
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user);
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fputs(PQerrormsg, stderr);
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pqdebug("%s", PQerrormsg);
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pfree(pw_file_fullname);
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return STATUS_ERROR;
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}
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