Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 1 | /** |
| 2 | * @file printer.c |
| 3 | * @author Radek Krejci <rkrejci@cesnet.cz> |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 4 | * @brief Generic libyang printers functions. |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 5 | * |
| 6 | * Copyright (c) 2015 - 2019 CESNET, z.s.p.o. |
| 7 | * |
| 8 | * This source code is licensed under BSD 3-Clause License (the "License"). |
| 9 | * You may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
| 11 | * |
| 12 | * https://opensource.org/licenses/BSD-3-Clause |
| 13 | */ |
| 14 | |
Radek Krejci | 535ea9f | 2020-05-29 16:01:05 +0200 | [diff] [blame] | 15 | #define _GNU_SOURCE |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 16 | |
Radek Krejci | 535ea9f | 2020-05-29 16:01:05 +0200 | [diff] [blame] | 17 | #include "printer.h" |
| 18 | |
| 19 | #include <assert.h> |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 20 | #include <errno.h> |
| 21 | #include <stdarg.h> |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 24 | #include <string.h> |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 25 | #include <unistd.h> |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 26 | |
Radek Krejci | 535ea9f | 2020-05-29 16:01:05 +0200 | [diff] [blame] | 27 | #include "common.h" |
Michal Vasko | 5aa44c0 | 2020-06-29 11:47:02 +0200 | [diff] [blame^] | 28 | #include "compat.h" |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 29 | #include "log.h" |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 30 | #include "plugins_types.h" |
Radek Krejci | 535ea9f | 2020-05-29 16:01:05 +0200 | [diff] [blame] | 31 | #include "printer_data.h" |
| 32 | #include "printer_internal.h" |
| 33 | #include "tree.h" |
| 34 | #include "tree_schema.h" |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 35 | |
| 36 | /** |
| 37 | * @brief informational structure shared by printers |
| 38 | */ |
| 39 | struct ext_substmt_info_s ext_substmt_info[] = { |
| 40 | {NULL, NULL, 0}, /**< LYEXT_SUBSTMT_SELF */ |
| 41 | {"argument", "name", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_ARGUMENT */ |
| 42 | {"base", "name", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_BASE */ |
| 43 | {"belongs-to", "module", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_BELONGSTO */ |
| 44 | {"contact", "text", SUBST_FLAG_YIN}, /**< LYEXT_SUBSTMT_CONTACT */ |
| 45 | {"default", "value", 0}, /**< LYEXT_SUBSTMT_DEFAULT */ |
| 46 | {"description", "text", SUBST_FLAG_YIN}, /**< LYEXT_SUBSTMT_DESCRIPTION */ |
| 47 | {"error-app-tag", "value", 0}, /**< LYEXT_SUBSTMT_ERRTAG */ |
| 48 | {"error-message", "value", SUBST_FLAG_YIN}, /**< LYEXT_SUBSTMT_ERRMSG */ |
| 49 | {"key", "value", 0}, /**< LYEXT_SUBSTMT_KEY */ |
| 50 | {"namespace", "uri", 0}, /**< LYEXT_SUBSTMT_NAMESPACE */ |
| 51 | {"organization", "text", SUBST_FLAG_YIN}, /**< LYEXT_SUBSTMT_ORGANIZATION */ |
| 52 | {"path", "value", 0}, /**< LYEXT_SUBSTMT_PATH */ |
| 53 | {"prefix", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_PREFIX */ |
| 54 | {"presence", "value", 0}, /**< LYEXT_SUBSTMT_PRESENCE */ |
| 55 | {"reference", "text", SUBST_FLAG_YIN}, /**< LYEXT_SUBSTMT_REFERENCE */ |
| 56 | {"revision-date", "date", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_REVISIONDATE */ |
| 57 | {"units", "name", 0}, /**< LYEXT_SUBSTMT_UNITS */ |
| 58 | {"value", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_VALUE */ |
| 59 | {"yang-version", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_VERSION */ |
| 60 | {"modifier", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_MODIFIER */ |
| 61 | {"require-instance", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_REQINST */ |
| 62 | {"yin-element", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_YINELEM */ |
| 63 | {"config", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_CONFIG */ |
| 64 | {"mandatory", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_MANDATORY */ |
| 65 | {"ordered-by", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_ORDEREDBY */ |
| 66 | {"status", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_STATUS */ |
| 67 | {"fraction-digits", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_DIGITS */ |
| 68 | {"max-elements", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_MAX */ |
| 69 | {"min-elements", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_MIN */ |
| 70 | {"position", "value", SUBST_FLAG_ID}, /**< LYEXT_SUBSTMT_POSITION */ |
| 71 | {"unique", "tag", 0}, /**< LYEXT_SUBSTMT_UNIQUE */ |
| 72 | }; |
| 73 | |
Michal Vasko | 6f4cbb6 | 2020-02-28 11:15:47 +0100 | [diff] [blame] | 74 | int |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 75 | ly_is_default(const struct lyd_node *node) |
| 76 | { |
| 77 | const struct lysc_node_leaf *leaf; |
| 78 | const struct lysc_node_leaflist *llist; |
| 79 | const struct lyd_node_term *term; |
Radek Krejci | 7eb54ba | 2020-05-18 16:30:04 +0200 | [diff] [blame] | 80 | LY_ARRAY_SIZE_TYPE u; |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 81 | |
| 82 | assert(node->schema->nodetype & LYD_NODE_TERM); |
| 83 | term = (const struct lyd_node_term *)node; |
| 84 | |
| 85 | if (node->schema->nodetype == LYS_LEAF) { |
| 86 | leaf = (const struct lysc_node_leaf *)node->schema; |
| 87 | if (!leaf->dflt) { |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | /* compare with the default value */ |
| 92 | if (leaf->type->plugin->compare(&term->value, leaf->dflt)) { |
| 93 | return 0; |
| 94 | } |
| 95 | } else { |
| 96 | llist = (const struct lysc_node_leaflist *)node->schema; |
| 97 | if (!llist->dflts) { |
| 98 | return 0; |
| 99 | } |
| 100 | |
Radek Krejci | 7eb54ba | 2020-05-18 16:30:04 +0200 | [diff] [blame] | 101 | LY_ARRAY_FOR(llist->dflts, u) { |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 102 | /* compare with each possible default value */ |
Radek Krejci | 7eb54ba | 2020-05-18 16:30:04 +0200 | [diff] [blame] | 103 | if (llist->type->plugin->compare(&term->value, llist->dflts[u])) { |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 104 | return 0; |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | return 1; |
| 110 | } |
| 111 | |
| 112 | int |
| 113 | ly_should_print(const struct lyd_node *node, int options) |
| 114 | { |
| 115 | const struct lyd_node *next, *elem; |
| 116 | |
| 117 | if (options & LYDP_WD_TRIM) { |
| 118 | /* do not print default nodes */ |
| 119 | if (node->flags & LYD_DEFAULT) { |
| 120 | /* implicit default node/NP container with only default nodes */ |
| 121 | return 0; |
| 122 | } else if (node->schema->nodetype & LYD_NODE_TERM) { |
| 123 | if (ly_is_default(node)) { |
| 124 | /* explicit default node */ |
| 125 | return 0; |
| 126 | } |
| 127 | } |
| 128 | } else if ((node->flags & LYD_DEFAULT) && !(options & LYDP_WD_MASK) && !(node->schema->flags & LYS_CONFIG_R)) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 129 | /* LYDP_WD_EXPLICIT |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 130 | * - print only if it contains status data in its subtree */ |
| 131 | LYD_TREE_DFS_BEGIN(node, next, elem) { |
Michal Vasko | db4f9e4 | 2020-06-01 17:29:56 +0200 | [diff] [blame] | 132 | if ((elem->schema->nodetype != LYS_CONTAINER) || (elem->schema->flags & LYS_PRESENCE)) { |
| 133 | if (elem->schema->flags & LYS_CONFIG_R) { |
| 134 | return 1; |
| 135 | } |
Michal Vasko | 9b368d3 | 2020-02-14 13:53:31 +0100 | [diff] [blame] | 136 | } |
| 137 | LYD_TREE_DFS_END(node, next, elem) |
| 138 | } |
| 139 | return 0; |
| 140 | } else if ((node->flags & LYD_DEFAULT) && (node->schema->nodetype == LYS_CONTAINER) && !(options & LYDP_KEEPEMPTYCONT)) { |
| 141 | /* avoid empty default containers */ |
| 142 | LYD_TREE_DFS_BEGIN(node, next, elem) { |
| 143 | if (elem->schema->nodetype != LYS_CONTAINER) { |
| 144 | return 1; |
| 145 | } |
| 146 | assert(elem->flags & LYD_DEFAULT); |
| 147 | LYD_TREE_DFS_END(node, next, elem) |
| 148 | } |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | return 1; |
| 153 | } |
| 154 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 155 | API LY_OUT_TYPE |
| 156 | ly_out_type(const struct ly_out *out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 157 | { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 158 | LY_CHECK_ARG_RET(NULL, out, LY_OUT_ERROR); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 159 | return out->type; |
| 160 | } |
| 161 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 162 | API LY_ERR |
| 163 | ly_out_new_clb(ssize_t (*writeclb)(void *arg, const void *buf, size_t count), void *arg, struct ly_out **out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 164 | { |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 165 | LY_CHECK_ARG_RET(NULL, out, writeclb, LY_EINVAL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 166 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 167 | *out = calloc(1, sizeof **out); |
| 168 | LY_CHECK_ERR_RET(!*out, LOGMEM(NULL), LY_EMEM); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 169 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 170 | (*out)->type = LY_OUT_CALLBACK; |
| 171 | (*out)->method.clb.func = writeclb; |
| 172 | (*out)->method.clb.arg = arg; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 173 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 174 | return LY_SUCCESS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 175 | } |
| 176 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 177 | API ssize_t (*ly_out_clb(struct ly_out *out, ssize_t (*writeclb)(void *arg, const void *buf, size_t count)))(void *arg, const void *buf, size_t count) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 178 | { |
| 179 | void *prev_clb; |
| 180 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 181 | LY_CHECK_ARG_RET(NULL, out, out->type == LY_OUT_CALLBACK, NULL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 182 | |
| 183 | prev_clb = out->method.clb.func; |
| 184 | |
| 185 | if (writeclb) { |
| 186 | out->method.clb.func = writeclb; |
| 187 | } |
| 188 | |
| 189 | return prev_clb; |
| 190 | } |
| 191 | |
| 192 | API void * |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 193 | ly_out_clb_arg(struct ly_out *out, void *arg) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 194 | { |
| 195 | void *prev_arg; |
| 196 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 197 | LY_CHECK_ARG_RET(NULL, out, out->type == LY_OUT_CALLBACK, NULL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 198 | |
| 199 | prev_arg = out->method.clb.arg; |
| 200 | |
| 201 | if (arg) { |
| 202 | out->method.clb.arg = arg; |
| 203 | } |
| 204 | |
| 205 | return prev_arg; |
| 206 | } |
| 207 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 208 | API LY_ERR |
| 209 | ly_out_new_fd(int fd, struct ly_out **out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 210 | { |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 211 | LY_CHECK_ARG_RET(NULL, out, fd != -1, LY_EINVAL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 212 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 213 | *out = calloc(1, sizeof **out); |
| 214 | LY_CHECK_ERR_RET(!*out, LOGMEM(NULL), LY_EMEM); |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 215 | (*out)->type = LY_OUT_FD; |
| 216 | (*out)->method.fd = fd; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 217 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 218 | return LY_SUCCESS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | API int |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 222 | ly_out_fd(struct ly_out *out, int fd) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 223 | { |
| 224 | int prev_fd; |
| 225 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 226 | LY_CHECK_ARG_RET(NULL, out, out->type <= LY_OUT_FDSTREAM, -1); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 227 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 228 | if (out->type == LY_OUT_FDSTREAM) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 229 | prev_fd = out->method.fdstream.fd; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 230 | } else { /* LY_OUT_FD */ |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 231 | prev_fd = out->method.fd; |
| 232 | } |
| 233 | |
| 234 | if (fd != -1) { |
| 235 | /* replace output stream */ |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 236 | if (out->type == LY_OUT_FDSTREAM) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 237 | int streamfd; |
| 238 | FILE *stream; |
| 239 | |
| 240 | streamfd = dup(fd); |
| 241 | if (streamfd < 0) { |
| 242 | LOGERR(NULL, LY_ESYS, "Unable to duplicate provided file descriptor (%d) for printing the output (%s).", fd, strerror(errno)); |
| 243 | return -1; |
| 244 | } |
| 245 | stream = fdopen(streamfd, "a"); |
| 246 | if (!stream) { |
| 247 | LOGERR(NULL, LY_ESYS, "Unable to open provided file descriptor (%d) for printing the output (%s).", fd, strerror(errno)); |
| 248 | close(streamfd); |
| 249 | return -1; |
| 250 | } |
| 251 | /* close only the internally created stream, file descriptor is returned and supposed to be closed by the caller */ |
| 252 | fclose(out->method.fdstream.f); |
| 253 | out->method.fdstream.f = stream; |
| 254 | out->method.fdstream.fd = streamfd; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 255 | } else { /* LY_OUT_FD */ |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 256 | out->method.fd = fd; |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | return prev_fd; |
| 261 | } |
| 262 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 263 | API LY_ERR |
| 264 | ly_out_new_file(FILE *f, struct ly_out **out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 265 | { |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 266 | LY_CHECK_ARG_RET(NULL, out, f, LY_EINVAL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 267 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 268 | *out = calloc(1, sizeof **out); |
| 269 | LY_CHECK_ERR_RET(!*out, LOGMEM(NULL), LY_EMEM); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 270 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 271 | (*out)->type = LY_OUT_FILE; |
| 272 | (*out)->method.f = f; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 273 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 274 | return LY_SUCCESS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | API FILE * |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 278 | ly_out_file(struct ly_out *out, FILE *f) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 279 | { |
| 280 | FILE *prev_f; |
| 281 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 282 | LY_CHECK_ARG_RET(NULL, out, out->type == LY_OUT_FILE, NULL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 283 | |
| 284 | prev_f = out->method.f; |
| 285 | |
| 286 | if (f) { |
| 287 | out->method.f = f; |
| 288 | } |
| 289 | |
| 290 | return prev_f; |
| 291 | } |
| 292 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 293 | API LY_ERR |
| 294 | ly_out_new_memory(char **strp, size_t size, struct ly_out **out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 295 | { |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 296 | LY_CHECK_ARG_RET(NULL, out, strp, LY_EINVAL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 297 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 298 | *out = calloc(1, sizeof **out); |
| 299 | LY_CHECK_ERR_RET(!*out, LOGMEM(NULL), LY_EMEM); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 300 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 301 | (*out)->type = LY_OUT_MEMORY; |
| 302 | (*out)->method.mem.buf = strp; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 303 | if (!size) { |
| 304 | /* buffer is supposed to be allocated */ |
| 305 | *strp = NULL; |
| 306 | } else if (*strp) { |
| 307 | /* there is already buffer to use */ |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 308 | (*out)->method.mem.size = size; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 309 | } |
| 310 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 311 | return LY_SUCCESS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | char * |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 315 | ly_out_memory(struct ly_out *out, char **strp, size_t size) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 316 | { |
| 317 | char *data; |
| 318 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 319 | LY_CHECK_ARG_RET(NULL, out, out->type == LY_OUT_MEMORY, NULL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 320 | |
| 321 | data = *out->method.mem.buf; |
| 322 | |
| 323 | if (strp) { |
| 324 | out->method.mem.buf = strp; |
| 325 | out->method.mem.len = out->method.mem.size = 0; |
| 326 | out->printed = 0; |
| 327 | if (!size) { |
| 328 | /* buffer is supposed to be allocated */ |
| 329 | *strp = NULL; |
| 330 | } else if (*strp) { |
| 331 | /* there is already buffer to use */ |
| 332 | out->method.mem.size = size; |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | return data; |
| 337 | } |
| 338 | |
| 339 | API LY_ERR |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 340 | ly_out_reset(struct ly_out *out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 341 | { |
| 342 | LY_CHECK_ARG_RET(NULL, out, LY_EINVAL); |
| 343 | |
| 344 | switch(out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 345 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 346 | LOGINT(NULL); |
| 347 | return LY_EINT; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 348 | case LY_OUT_FD: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 349 | if ((lseek(out->method.fd, 0, SEEK_SET) == -1) && errno != ESPIPE) { |
| 350 | LOGERR(NULL, LY_ESYS, "Seeking output file descriptor failed (%s).", strerror(errno)); |
| 351 | return LY_ESYS; |
| 352 | } |
Radek Krejci | c5a12e1 | 2020-05-27 17:09:59 +0200 | [diff] [blame] | 353 | if (errno != ESPIPE && ftruncate(out->method.fd, 0) == -1) { |
| 354 | LOGERR(NULL, LY_ESYS, "Truncating output file failed (%s).", strerror(errno)); |
| 355 | return LY_ESYS; |
| 356 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 357 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 358 | case LY_OUT_FDSTREAM: |
| 359 | case LY_OUT_FILE: |
| 360 | case LY_OUT_FILEPATH: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 361 | if ((fseek(out->method.f, 0, SEEK_SET) == -1) && errno != ESPIPE) { |
| 362 | LOGERR(NULL, LY_ESYS, "Seeking output file stream failed (%s).", strerror(errno)); |
| 363 | return LY_ESYS; |
| 364 | } |
Radek Krejci | c5a12e1 | 2020-05-27 17:09:59 +0200 | [diff] [blame] | 365 | if (errno != ESPIPE && ftruncate(fileno(out->method.f), 0) == -1) { |
| 366 | LOGERR(NULL, LY_ESYS, "Truncating output file failed (%s).", strerror(errno)); |
| 367 | return LY_ESYS; |
| 368 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 369 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 370 | case LY_OUT_MEMORY: |
Radek Krejci | c5a12e1 | 2020-05-27 17:09:59 +0200 | [diff] [blame] | 371 | if (out->method.mem.buf && *out->method.mem.buf) { |
| 372 | memset(*out->method.mem.buf, 0, out->method.mem.len); |
| 373 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 374 | out->printed = 0; |
| 375 | out->method.mem.len = 0; |
| 376 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 377 | case LY_OUT_CALLBACK: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 378 | /* nothing to do (not seekable) */ |
| 379 | break; |
| 380 | } |
| 381 | |
| 382 | return LY_SUCCESS; |
| 383 | } |
| 384 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 385 | API LY_ERR |
| 386 | ly_out_new_filepath(const char *filepath, struct ly_out **out) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 387 | { |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 388 | LY_CHECK_ARG_RET(NULL, out, filepath, LY_EINVAL); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 389 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 390 | *out = calloc(1, sizeof **out); |
| 391 | LY_CHECK_ERR_RET(!*out, LOGMEM(NULL), LY_EMEM); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 392 | |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 393 | (*out)->type = LY_OUT_FILEPATH; |
| 394 | (*out)->method.fpath.f = fopen(filepath, "w"); |
| 395 | if (!(*out)->method.fpath.f) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 396 | LOGERR(NULL, LY_ESYS, "Failed to open file \"%s\" (%s).", filepath, strerror(errno)); |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 397 | return LY_ESYS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 398 | } |
Radek Krejci | 84ce7b1 | 2020-06-11 17:28:25 +0200 | [diff] [blame] | 399 | (*out)->method.fpath.filepath = strdup(filepath); |
| 400 | return LY_SUCCESS; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | API const char * |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 404 | ly_out_filepath(struct ly_out *out, const char *filepath) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 405 | { |
| 406 | FILE *f; |
| 407 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 408 | LY_CHECK_ARG_RET(NULL, out, out->type == LY_OUT_FILEPATH, filepath ? NULL : ((void *)-1)); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 409 | |
| 410 | if (!filepath) { |
| 411 | return out->method.fpath.filepath; |
| 412 | } |
| 413 | |
| 414 | /* replace filepath */ |
| 415 | f = out->method.fpath.f; |
| 416 | out->method.fpath.f = fopen(filepath, "w"); |
| 417 | if (!out->method.fpath.f) { |
| 418 | LOGERR(NULL, LY_ESYS, "Failed to open file \"%s\" (%s).", filepath, strerror(errno)); |
| 419 | out->method.fpath.f = f; |
| 420 | return ((void *)-1); |
| 421 | } |
| 422 | fclose(f); |
| 423 | free(out->method.fpath.filepath); |
| 424 | out->method.fpath.filepath = strdup(filepath); |
| 425 | |
| 426 | return NULL; |
| 427 | } |
| 428 | |
| 429 | API void |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 430 | ly_out_free(struct ly_out *out, void (*clb_arg_destructor)(void *arg), int destroy) |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 431 | { |
| 432 | if (!out) { |
| 433 | return; |
| 434 | } |
| 435 | |
| 436 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 437 | case LY_OUT_CALLBACK: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 438 | if (clb_arg_destructor) { |
| 439 | clb_arg_destructor(out->method.clb.arg); |
| 440 | } |
| 441 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 442 | case LY_OUT_FDSTREAM: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 443 | fclose(out->method.fdstream.f); |
| 444 | if (destroy) { |
| 445 | close(out->method.fdstream.fd); |
| 446 | } |
| 447 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 448 | case LY_OUT_FD: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 449 | if (destroy) { |
| 450 | close(out->method.fd); |
| 451 | } |
| 452 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 453 | case LY_OUT_FILE: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 454 | if (destroy) { |
| 455 | fclose(out->method.f); |
| 456 | } |
| 457 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 458 | case LY_OUT_MEMORY: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 459 | if (destroy) { |
| 460 | free(*out->method.mem.buf); |
| 461 | } |
| 462 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 463 | case LY_OUT_FILEPATH: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 464 | free(out->method.fpath.filepath); |
Radek Krejci | 2aae375 | 2020-05-27 18:16:30 +0200 | [diff] [blame] | 465 | fclose(out->method.fpath.f); |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 466 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 467 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 468 | LOGINT(NULL); |
| 469 | } |
| 470 | free(out); |
| 471 | } |
| 472 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 473 | API ssize_t |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 474 | ly_print(struct ly_out *out, const char *format, ...) |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 475 | { |
| 476 | int count = 0; |
| 477 | char *msg = NULL, *aux; |
| 478 | va_list ap; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 479 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 480 | LYOUT_CHECK(out, -1 * out->status); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 481 | |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 482 | va_start(ap, format); |
| 483 | |
| 484 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 485 | case LY_OUT_FD: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 486 | count = vdprintf(out->method.fd, format, ap); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 487 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 488 | case LY_OUT_FDSTREAM: |
| 489 | case LY_OUT_FILEPATH: |
| 490 | case LY_OUT_FILE: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 491 | count = vfprintf(out->method.f, format, ap); |
| 492 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 493 | case LY_OUT_MEMORY: |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 494 | if ((count = vasprintf(&msg, format, ap)) < 0) { |
| 495 | break; |
| 496 | } |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 497 | if (out->method.mem.len + count + 1 > out->method.mem.size) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 498 | aux = ly_realloc(*out->method.mem.buf, out->method.mem.len + count + 1); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 499 | if (!aux) { |
| 500 | out->method.mem.buf = NULL; |
| 501 | out->method.mem.len = 0; |
| 502 | out->method.mem.size = 0; |
| 503 | LOGMEM(NULL); |
| 504 | va_end(ap); |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 505 | return -LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 506 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 507 | *out->method.mem.buf = aux; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 508 | out->method.mem.size = out->method.mem.len + count + 1; |
| 509 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 510 | memcpy(&(*out->method.mem.buf)[out->method.mem.len], msg, count); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 511 | out->method.mem.len += count; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 512 | (*out->method.mem.buf)[out->method.mem.len] = '\0'; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 513 | free(msg); |
| 514 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 515 | case LY_OUT_CALLBACK: |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 516 | if ((count = vasprintf(&msg, format, ap)) < 0) { |
| 517 | break; |
| 518 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 519 | count = out->method.clb.func(out->method.clb.arg, msg, count); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 520 | free(msg); |
| 521 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 522 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 523 | LOGINT(NULL); |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 524 | va_end(ap); |
| 525 | return -LY_EINT; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | va_end(ap); |
| 529 | |
| 530 | if (count < 0) { |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 531 | LOGERR(out->ctx, LY_ESYS, "%s: writing data failed (%s).", __func__, strerror(errno)); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 532 | out->status = LY_ESYS; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 533 | return -LY_ESYS; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 534 | } else { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 535 | if (out->type == LY_OUT_FDSTREAM) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 536 | /* move the original file descriptor to the end of the output file */ |
| 537 | lseek(out->method.fdstream.fd, 0, SEEK_END); |
| 538 | } |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 539 | out->printed += count; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 540 | return count; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 541 | } |
| 542 | } |
| 543 | |
Radek Krejci | 2aae375 | 2020-05-27 18:16:30 +0200 | [diff] [blame] | 544 | API void |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 545 | ly_print_flush(struct ly_out *out) |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 546 | { |
| 547 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 548 | case LY_OUT_FDSTREAM: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 549 | /* move the original file descriptor to the end of the output file */ |
| 550 | lseek(out->method.fdstream.fd, 0, SEEK_END); |
| 551 | fflush(out->method.fdstream.f); |
| 552 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 553 | case LY_OUT_FILEPATH: |
| 554 | case LY_OUT_FILE: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 555 | fflush(out->method.f); |
| 556 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 557 | case LY_OUT_FD: |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 558 | fsync(out->method.fd); |
| 559 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 560 | case LY_OUT_MEMORY: |
| 561 | case LY_OUT_CALLBACK: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 562 | /* nothing to do */ |
| 563 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 564 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 565 | LOGINT(NULL); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 566 | } |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 567 | |
| 568 | free(out->buffered); |
| 569 | out->buf_size = out->buf_len = 0; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 570 | } |
| 571 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 572 | API ssize_t |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 573 | ly_write(struct ly_out *out, const char *buf, size_t len) |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 574 | { |
| 575 | int written = 0; |
| 576 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 577 | LYOUT_CHECK(out, -1 * out->status); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 578 | |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 579 | if (out->hole_count) { |
| 580 | /* we are buffering data after a hole */ |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 581 | if (out->buf_len + len > out->buf_size) { |
| 582 | out->buffered = ly_realloc(out->buffered, out->buf_len + len); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 583 | if (!out->buffered) { |
| 584 | out->buf_len = 0; |
| 585 | out->buf_size = 0; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 586 | LOGMEM(NULL); |
| 587 | return -LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 588 | } |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 589 | out->buf_size = out->buf_len + len; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 590 | } |
| 591 | |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 592 | memcpy(&out->buffered[out->buf_len], buf, len); |
| 593 | out->buf_len += len; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 594 | return len; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 595 | } |
| 596 | |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 597 | repeat: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 598 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 599 | case LY_OUT_MEMORY: |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 600 | if (out->method.mem.len + len + 1 > out->method.mem.size) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 601 | *out->method.mem.buf = ly_realloc(*out->method.mem.buf, out->method.mem.len + len + 1); |
| 602 | if (!*out->method.mem.buf) { |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 603 | out->method.mem.len = 0; |
| 604 | out->method.mem.size = 0; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 605 | LOGMEM(NULL); |
| 606 | return -LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 607 | } |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 608 | out->method.mem.size = out->method.mem.len + len + 1; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 609 | } |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 610 | memcpy(&(*out->method.mem.buf)[out->method.mem.len], buf, len); |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 611 | out->method.mem.len += len; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 612 | (*out->method.mem.buf)[out->method.mem.len] = '\0'; |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 613 | |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 614 | out->printed += len; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 615 | return len; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 616 | case LY_OUT_FD: |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 617 | written = write(out->method.fd, buf, len); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 618 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 619 | case LY_OUT_FDSTREAM: |
| 620 | case LY_OUT_FILEPATH: |
| 621 | case LY_OUT_FILE: |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 622 | written = fwrite(buf, sizeof *buf, len, out->method.f); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 623 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 624 | case LY_OUT_CALLBACK: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 625 | written = out->method.clb.func(out->method.clb.arg, buf, len); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 626 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 627 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 628 | LOGINT(NULL); |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 629 | return -LY_EINT; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | if (written < 0) { |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 633 | if (errno == EAGAIN || errno == EWOULDBLOCK) { |
| 634 | goto repeat; |
| 635 | } |
| 636 | LOGERR(out->ctx, LY_ESYS, "%s: writing data failed (%s).", __func__, strerror(errno)); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 637 | out->status = LY_ESYS; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 638 | return -LY_ESYS; |
Radek Krejci | e7b9509 | 2019-05-15 11:03:07 +0200 | [diff] [blame] | 639 | } else if ((size_t)written != len) { |
| 640 | LOGERR(out->ctx, LY_ESYS, "%s: writing data failed (unable to write %u from %u data).", __func__, len - (size_t)written, len); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 641 | out->status = LY_ESYS; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 642 | return -LY_ESYS; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 643 | } else { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 644 | if (out->type == LY_OUT_FDSTREAM) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 645 | /* move the original file descriptor to the end of the output file */ |
| 646 | lseek(out->method.fdstream.fd, 0, SEEK_END); |
| 647 | } |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 648 | out->printed += written; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 649 | return written; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 650 | } |
| 651 | } |
| 652 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 653 | ssize_t |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 654 | ly_write_skip(struct ly_out *out, size_t count, size_t *position) |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 655 | { |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 656 | LYOUT_CHECK(out, -1 * out->status); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 657 | |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 658 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 659 | case LY_OUT_MEMORY: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 660 | if (out->method.mem.len + count > out->method.mem.size) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 661 | *out->method.mem.buf = ly_realloc(*out->method.mem.buf, out->method.mem.len + count); |
| 662 | if (!(*out->method.mem.buf)) { |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 663 | out->method.mem.len = 0; |
| 664 | out->method.mem.size = 0; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 665 | out->status = LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 666 | LOGMEM_RET(NULL); |
| 667 | } |
| 668 | out->method.mem.size = out->method.mem.len + count; |
| 669 | } |
| 670 | |
| 671 | /* save the current position */ |
| 672 | *position = out->method.mem.len; |
| 673 | |
| 674 | /* skip the memory */ |
| 675 | out->method.mem.len += count; |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 676 | |
| 677 | /* update printed bytes counter despite we actually printed just a hole */ |
| 678 | out->printed += count; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 679 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 680 | case LY_OUT_FD: |
| 681 | case LY_OUT_FDSTREAM: |
| 682 | case LY_OUT_FILEPATH: |
| 683 | case LY_OUT_FILE: |
| 684 | case LY_OUT_CALLBACK: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 685 | /* buffer the hole */ |
| 686 | if (out->buf_len + count > out->buf_size) { |
| 687 | out->buffered = ly_realloc(out->buffered, out->buf_len + count); |
| 688 | if (!out->buffered) { |
| 689 | out->buf_len = 0; |
| 690 | out->buf_size = 0; |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 691 | out->status = LY_EMEM; |
| 692 | LOGMEM(NULL); |
| 693 | return -LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 694 | } |
| 695 | out->buf_size = out->buf_len + count; |
| 696 | } |
| 697 | |
| 698 | /* save the current position */ |
| 699 | *position = out->buf_len; |
| 700 | |
| 701 | /* skip the memory */ |
| 702 | out->buf_len += count; |
| 703 | |
| 704 | /* increase hole counter */ |
| 705 | ++out->hole_count; |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 706 | |
| 707 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 708 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 709 | LOGINT(NULL); |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 710 | return -LY_EINT; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 711 | } |
| 712 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 713 | return count; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 714 | } |
| 715 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 716 | ssize_t |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 717 | ly_write_skipped(struct ly_out *out, size_t position, const char *buf, size_t count) |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 718 | { |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 719 | ssize_t ret = LY_SUCCESS; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 720 | |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 721 | LYOUT_CHECK(out, -1 * out->status); |
Radek Krejci | 56cc087 | 2019-04-30 09:22:27 +0200 | [diff] [blame] | 722 | |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 723 | switch (out->type) { |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 724 | case LY_OUT_MEMORY: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 725 | /* write */ |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 726 | memcpy(&(*out->method.mem.buf)[position], buf, count); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 727 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 728 | case LY_OUT_FD: |
| 729 | case LY_OUT_FDSTREAM: |
| 730 | case LY_OUT_FILEPATH: |
| 731 | case LY_OUT_FILE: |
| 732 | case LY_OUT_CALLBACK: |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 733 | if (out->buf_len < position + count) { |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 734 | out->status = LY_EMEM; |
| 735 | LOGMEM(NULL); |
| 736 | return -LY_EMEM; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 737 | } |
| 738 | |
| 739 | /* write into the hole */ |
| 740 | memcpy(&out->buffered[position], buf, count); |
| 741 | |
| 742 | /* decrease hole counter */ |
| 743 | --out->hole_count; |
| 744 | |
| 745 | if (!out->hole_count) { |
Radek Krejci | 897ad2e | 2019-04-29 16:43:07 +0200 | [diff] [blame] | 746 | /* all holes filled, we can write the buffer, |
| 747 | * printed bytes counter is updated by ly_write() */ |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 748 | ret = ly_write(out, out->buffered, out->buf_len); |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 749 | out->buf_len = 0; |
| 750 | } |
| 751 | break; |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 752 | case LY_OUT_ERROR: |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 753 | LOGINT(NULL); |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 754 | return -LY_EINT; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 755 | } |
| 756 | |
Radek Krejci | 241f6b5 | 2020-05-21 18:13:49 +0200 | [diff] [blame] | 757 | if (out->type == LY_OUT_FILEPATH) { |
Radek Krejci | a5bba31 | 2020-01-09 15:41:20 +0100 | [diff] [blame] | 758 | /* move the original file descriptor to the end of the output file */ |
| 759 | lseek(out->method.fdstream.fd, 0, SEEK_END); |
| 760 | } |
Radek Krejci | baeb838 | 2020-05-27 16:44:53 +0200 | [diff] [blame] | 761 | return ret < 0 ? (-1 * ret) : LY_SUCCESS; |
Radek Krejci | d3ca063 | 2019-04-16 16:54:54 +0200 | [diff] [blame] | 762 | } |