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javalsai
0b2d0bdf03
* chore(organization): allow nested header and c files * feat: add shell login "middleware" & etc: * lidm now calls `bash` (or other shells, depends on PACKAGE cfg) in login mode as a session wrapper to source most env (can be disabled) * this fixes a lot of env problems with all `/etc/profile` and more Extra: * implemented a musl compatible version of `execvpe` and now lidm should search for PATH everywhere it needs to * `search_path` now also checks if the found binary is properly executable * lidm now uses `confstr` for a decent PATH default if none is found * logs are unbuffered for cases where debug logs appear empty (exit without handlers moment) * chore: one-time evaluate certain makefile vars --------- Co-authored-by: grialion <48643945+grialion@users.noreply.github.com>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
#include <pwd.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "log.h"
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#include "macros.h"
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#include "users.h"
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#include "util/vec.h"
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// NOLINTNEXTLINE(readability-identifier-length)
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int build_user(struct user* NNULLABLE user, struct passwd* p) {
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char* shell = strdup(p->pw_shell);
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char* username = strdup(p->pw_name);
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char* displayname;
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if (strlen(p->pw_gecos) == 0)
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displayname = username;
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else {
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displayname = strdup(p->pw_gecos);
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}
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if (!shell || !username || !displayname) {
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free(shell);
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free(username);
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if (displayname != username) free(displayname);
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// actually tidy struggles with the line i have avobe
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// NOLINTNEXTLINE(clang-analyzer-unix.Malloc)
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return -1;
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}
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*user = (struct user){
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.shell = shell,
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.username = username,
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.display_name = displayname,
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};
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return 0;
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}
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// This code is designed to be run purely single threaded
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#define LIKELY_BOUND_USERS 4
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struct Vector get_human_users() {
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struct Vector users = VEC_NEW;
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vec_reserve(&users, LIKELY_BOUND_USERS);
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struct passwd* NULLABLE pwd;
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while ((pwd = getpwent()) != NULL) {
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log_printf("[I] handling user %s\n", pwd->pw_name);
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// `- 1` bcs sizeof counts the nullbyte
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if (pwd->pw_dir &&
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strncmp(pwd->pw_dir, "/home/", sizeof("/home/") - 1) != 0)
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continue;
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log_printf("[I] found %s\n", pwd->pw_name);
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struct user* user_i = malloc(sizeof(struct user));
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if (user_i == NULL) continue; // malloc error
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if (build_user(user_i, pwd) != 0) {
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log_printf("[E] failed to allocate allocate memory for %s\n",
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pwd->pw_name);
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}
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vec_push(&users, user_i);
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}
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return users;
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}
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