| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* -*- c++ -*- */ | ||
| 2 | /* | ||
| 3 | * Copyright 2011, 2012, 2015, 2016, 2019, 2020 Free Software Foundation, Inc. | ||
| 4 | * | ||
| 5 | * This file is part of VOLK | ||
| 6 | * | ||
| 7 | * SPDX-License-Identifier: LGPL-3.0-or-later | ||
| 8 | */ | ||
| 9 | |||
| 10 | #include <stdbool.h> | ||
| 11 | #include <stdio.h> | ||
| 12 | #include <stdlib.h> | ||
| 13 | #include <string.h> | ||
| 14 | #if defined(_MSC_VER) | ||
| 15 | #include <io.h> | ||
| 16 | #define access _access | ||
| 17 | #define F_OK 0 | ||
| 18 | #else | ||
| 19 | #include <unistd.h> | ||
| 20 | #endif | ||
| 21 | #include <volk/volk_prefs.h> | ||
| 22 | |||
| 23 | 4 | void volk_get_config_path(char* path, bool read) | |
| 24 | { | ||
| 25 |
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4 | if (!path) |
| 26 | ✗ | return; | |
| 27 | 4 | const char* suffix = "/.volk/volk_config"; | |
| 28 | 4 | const char* suffix2 = "/volk/volk_config"; // non-hidden | |
| 29 | 4 | char* home = NULL; | |
| 30 | |||
| 31 | // allows config redirection via env variable | ||
| 32 | 4 | home = getenv("VOLK_CONFIGPATH"); | |
| 33 |
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4 | if (home != NULL) { |
| 34 | ✗ | strncpy(path, home, 512); | |
| 35 | ✗ | strcat(path, suffix2); | |
| 36 | ✗ | if (!read || access(path, F_OK) != -1) { | |
| 37 | ✗ | return; | |
| 38 | } | ||
| 39 | } | ||
| 40 | |||
| 41 | // check for user-local config file | ||
| 42 | 4 | home = getenv("HOME"); | |
| 43 |
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4 | if (home != NULL) { |
| 44 | 4 | strncpy(path, home, 512); | |
| 45 | 4 | strcat(path, suffix); | |
| 46 |
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4 | if (!read || (access(path, F_OK) != -1)) { |
| 47 | 4 | return; | |
| 48 | } | ||
| 49 | } | ||
| 50 | |||
| 51 | // check for config file in APPDATA (Windows) | ||
| 52 | ✗ | home = getenv("APPDATA"); | |
| 53 | ✗ | if (home != NULL) { | |
| 54 | ✗ | strncpy(path, home, 512); | |
| 55 | ✗ | strcat(path, suffix); | |
| 56 | ✗ | if (!read || (access(path, F_OK) != -1)) { | |
| 57 | ✗ | return; | |
| 58 | } | ||
| 59 | } | ||
| 60 | |||
| 61 | // check for system-wide config file | ||
| 62 | ✗ | if (access("/etc/volk/volk_config", F_OK) != -1) { | |
| 63 | ✗ | strncpy(path, "/etc", 512); | |
| 64 | ✗ | strcat(path, suffix2); | |
| 65 | ✗ | if (!read || (access(path, F_OK) != -1)) { | |
| 66 | ✗ | return; | |
| 67 | } | ||
| 68 | } | ||
| 69 | |||
| 70 | // If still no path was found set path[0] to '0' and fall through | ||
| 71 | ✗ | path[0] = 0; | |
| 72 | ✗ | return; | |
| 73 | } | ||
| 74 | |||
| 75 | 4 | size_t volk_load_preferences(volk_arch_pref_t** prefs_res) | |
| 76 | { | ||
| 77 | FILE* config_file; | ||
| 78 | char path[512], line[512]; | ||
| 79 | 4 | size_t n_arch_prefs = 0; | |
| 80 | 4 | volk_arch_pref_t* prefs = NULL; | |
| 81 | |||
| 82 | // get the config path | ||
| 83 | 4 | volk_get_config_path(path, true); | |
| 84 |
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4 | if (!path[0]) |
| 85 | ✗ | return n_arch_prefs; // no prefs found | |
| 86 | 4 | config_file = fopen(path, "r"); | |
| 87 |
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4 | if (!config_file) |
| 88 | ✗ | return n_arch_prefs; // no prefs found | |
| 89 | |||
| 90 | // reset the file pointer and write the prefs into volk_arch_prefs | ||
| 91 |
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12 | while (fgets(line, sizeof(line), config_file) != NULL) { |
| 92 | 8 | void* new_prefs = realloc(prefs, (n_arch_prefs + 1) * sizeof(*prefs)); | |
| 93 |
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8 | if (!new_prefs) { |
| 94 | ✗ | printf("volk_load_preferences: bad malloc\n"); | |
| 95 | ✗ | break; | |
| 96 | } | ||
| 97 | 8 | prefs = (volk_arch_pref_t*)new_prefs; | |
| 98 | 8 | volk_arch_pref_t* p = prefs + n_arch_prefs; | |
| 99 |
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8 | if (sscanf(line, "%s %s %s", p->name, p->impl_a, p->impl_u) == 3 && |
| 100 |
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8 | !strncmp(p->name, "volk_", 5)) { |
| 101 | ✗ | n_arch_prefs++; | |
| 102 | } | ||
| 103 | } | ||
| 104 | 4 | fclose(config_file); | |
| 105 | 4 | *prefs_res = prefs; | |
| 106 | 4 | return n_arch_prefs; | |
| 107 | } | ||
| 108 |