| Directory: | src/ |
|---|---|
| File: | src/cmd_line.c |
| Date: | 2024-04-25 03:45:42 |
| Exec | Total | Coverage | |
|---|---|---|---|
| Lines: | 28 | 31 | 90.3% |
| Branches: | 7 | 14 | 50.0% |
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2023 Egor Tensin <egor@tensin.name> | ||
| 3 | * This file is part of the "cimple" project. | ||
| 4 | * For details, see https://github.com/egor-tensin/cimple. | ||
| 5 | * Distributed under the MIT License. | ||
| 6 | */ | ||
| 7 | |||
| 8 | #include "cmd_line.h" | ||
| 9 | #include "const.h" | ||
| 10 | #include "file.h" | ||
| 11 | #include "log.h" | ||
| 12 | |||
| 13 | #include <stdio.h> | ||
| 14 | #include <stdlib.h> | ||
| 15 | #include <string.h> | ||
| 16 | |||
| 17 | 20 | static char *get_current_binary_path(void) | |
| 18 | { | ||
| 19 | 20 | return my_readlink("/proc/self/exe"); | |
| 20 | } | ||
| 21 | |||
| 22 | 20 | static char *get_current_binary_name(void) | |
| 23 | { | ||
| 24 | 20 | char *path = get_current_binary_path(); | |
| 25 |
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20 | if (!path) |
| 26 | ✗ | return NULL; | |
| 27 | |||
| 28 | 20 | char *name = basename(path); | |
| 29 | |||
| 30 | 20 | char *result = strdup(name); | |
| 31 |
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20 | if (!result) { |
| 32 | ✗ | log_errno("strdup"); | |
| 33 | ✗ | goto free_path; | |
| 34 | } | ||
| 35 | |||
| 36 | 20 | free_path: | |
| 37 | 20 | free(path); | |
| 38 | |||
| 39 | 20 | return result; | |
| 40 | } | ||
| 41 | |||
| 42 | 14 | void exit_with_usage(int ec) | |
| 43 | { | ||
| 44 | 14 | FILE *dest = stdout; | |
| 45 |
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14 | if (ec) |
| 46 | 8 | dest = stderr; | |
| 47 | |||
| 48 | 14 | char *binary = get_current_binary_name(); | |
| 49 | |||
| 50 |
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14 | fprintf(dest, "usage: %s %s\n", binary ? binary : "prog", get_usage_string()); |
| 51 | 14 | free(binary); | |
| 52 | 14 | exit(ec); | |
| 53 | } | ||
| 54 | |||
| 55 | 2 | void exit_with_usage_err(const char *msg) | |
| 56 | { | ||
| 57 |
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2 | if (msg) |
| 58 | 2 | fprintf(stderr, "usage error: %s\n", msg); | |
| 59 | 2 | exit_with_usage(1); | |
| 60 | } | ||
| 61 | |||
| 62 | 6 | void exit_with_version(void) | |
| 63 | { | ||
| 64 | 6 | char *binary = get_current_binary_name(); | |
| 65 | |||
| 66 |
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6 | printf("%s v%s (%s)\n", binary ? binary : "prog", project_version, project_rev); |
| 67 | 6 | free(binary); | |
| 68 | 6 | exit(0); | |
| 69 | } | ||
| 70 |