34 lines
640 B
C
34 lines
640 B
C
#ifndef _PW_CHECK_H
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#define _PW_CHECK_H
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#include <pwd.h>
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#include <stdio.h>
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#include <crypt.h>
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#include <unistd.h>
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int pw_check(const char *prog_name, const struct passwd *pw, const char *pass) {
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if (pw->pw_passwd[0] == '\0' || pass[0] == '\0') {
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if (pass[0] == '\0')
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return 0;
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fprintf(stderr, "%s: Incorrect password\n", prog_name);
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return 1;
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}
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if (pw->pw_passwd[0] == '!' || pw->pw_passwd[0] == '*') {
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fprintf(stderr, "%s: Denied\n", prog_name);
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return 1;
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}
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char *cryptpass = crypt(pass, pw->pw_passwd);
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if (cryptpass == NULL)
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return 1;
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if (!strcmp(pw->pw_passwd, cryptpass))
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return 0;
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return 1;
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}
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#endif
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