Enrico Fraccaroli
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/// MentOS, The Mentoring Operating system project
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/// @file t_gid.c
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/// @brief
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/// @copyright (c) 2014-2021 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#include "grp.h"
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#include "stdlib.h"
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#include "string.h"
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#include <stdio.h>
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static void list_groups() {
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group* iter;
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while ((iter = getgrent()) != NULL) {
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printf("Group\n\tname: %s\n\tpasswd: %s\n\tnames:\n",iter->gr_name, iter->gr_passwd);
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size_t count = 0;
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while (iter->gr_mem[count] != NULL) {
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printf("\t\t%s\n",iter->gr_mem[count]);
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count += 1;
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}
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printf("\n");
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}
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}
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int main(int argc, char** argv) {
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printf("List of all groups:\n");
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list_groups();
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setgrent();
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printf("List all groups again:\n");
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list_groups();
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endgrent();
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group* root_group = getgrgid(0);
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if (strcmp(root_group->gr_name, "root") != 0) {
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printf("Error in getgrgid function.");
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return 1;
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}
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root_group = getgrnam("root");
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if (root_group->gr_gid != 0) {
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printf("Error in getgrnam function.");
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return 1;
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}
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return 0;
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} |