refactor: table-driven CLI option parsing in client_cli
- Add OPTION_TABLE for options that map directly to Config fields (flag/string/pos-int/nonneg-int/ull kinds) - Extract parse_ull_arg() replacing 5 duplicated strtoull blocks - Extract config_add_pattern() replacing duplicated --exclude/--include append logic, also reused by read_patterns_from_file() - parse_args() reduced from ~275 to ~160 lines
This commit is contained in:
+174
-168
@@ -11,6 +11,7 @@
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#include <errno.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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@@ -87,105 +88,187 @@ static int set_nonneg_int_option(int* dest, const char* value, const char* optio
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static int read_patterns_from_file(const char* filepath, char*** patterns, int* count);
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/* Parse a string as an unsigned long long. Returns 0 on success, -1 on error. */
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static int parse_ull_arg(const char* val, unsigned long long* out, const char* optname) {
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char* end;
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errno = 0;
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unsigned long long v = strtoull(val, &end, 10);
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if (errno != 0 || *end != '\0') {
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fprintf(stderr, "Error: %s must be a non-negative integer\n", optname);
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return -1;
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}
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*out = v;
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return 0;
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}
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/* Append a duplicated pattern to a growable pattern array. Returns 0 on success, -1 on error. */
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static int config_add_pattern(char*** patterns, int* count, const char* value,
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const char* optname) {
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char** tmp = realloc(*patterns, (*count + 1) * sizeof(char*));
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if (!tmp) {
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fprintf(stderr, "Error: memory allocation failed for %s\n", optname);
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return -1;
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}
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*patterns = tmp;
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char* dup = str_dup(value);
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if (!dup) {
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fprintf(stderr, "Error: memory allocation failed for %s\n", optname);
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return -1;
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}
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(*patterns)[(*count)++] = dup;
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return 0;
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}
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typedef enum {
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OPT_FLAG,
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OPT_STRING,
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OPT_POS_INT,
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OPT_NONNEG_INT,
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OPT_ULL,
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} OptKind;
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typedef struct {
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const char* name;
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const char* alias;
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OptKind kind;
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size_t offset; /* offsetof of the target field in Config */
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} OptionEntry;
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/* Options that map directly onto a Config field with no side effects. */
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static const OptionEntry OPTION_TABLE[] = {
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{"--dry-run", "-n", OPT_FLAG, offsetof(Config, dry_run)},
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{"--delete", NULL, OPT_FLAG, offsetof(Config, use_delete)},
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{"--incremental", NULL, OPT_FLAG, offsetof(Config, use_incremental)},
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{"--delta", NULL, OPT_FLAG, offsetof(Config, use_delta)},
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{"--save-to-disk", NULL, OPT_FLAG, offsetof(Config, save_to_disk)},
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{"--progress", NULL, OPT_FLAG, offsetof(Config, show_progress)},
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{"--tls", NULL, OPT_FLAG, offsetof(Config, use_tls)},
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{"--backup", NULL, OPT_FLAG, offsetof(Config, backup)},
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{"--stats", NULL, OPT_FLAG, offsetof(Config, stats)},
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{"--partial", NULL, OPT_FLAG, offsetof(Config, partial)},
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{"--links", "-l", OPT_FLAG, offsetof(Config, follow_symlinks)},
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{"--copy-links", NULL, OPT_FLAG, offsetof(Config, copy_links)},
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{"--safe-links", NULL, OPT_FLAG, offsetof(Config, safe_links)},
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{"--copy-unsafe-links", NULL, OPT_FLAG, offsetof(Config, copy_unsafe_links)},
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{"--sparse", "-S", OPT_FLAG, offsetof(Config, preserve_sparse)},
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{"--inplace", NULL, OPT_FLAG, offsetof(Config, inplace)},
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{"--checksum", NULL, OPT_FLAG, offsetof(Config, checksum)},
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{"--source-dir", NULL, OPT_STRING, offsetof(Config, send_directory)},
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{"--dest-dir", NULL, OPT_STRING, offsetof(Config, receive_root_directory)},
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{"--server-host", NULL, OPT_STRING, offsetof(Config, server_host)},
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{"--cert", NULL, OPT_STRING, offsetof(Config, tls_cert)},
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{"--key", NULL, OPT_STRING, offsetof(Config, tls_key)},
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{"--ca", NULL, OPT_STRING, offsetof(Config, tls_ca)},
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{"--backup-dir", NULL, OPT_STRING, offsetof(Config, backup_dir)},
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{"--fastsync-server-path", NULL, OPT_STRING, offsetof(Config, fastsync_server_path)},
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{"--partial-dir", NULL, OPT_STRING, offsetof(Config, partial_dir)},
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{"--suffix", NULL, OPT_STRING, offsetof(Config, suffix)},
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{"--timeout", NULL, OPT_POS_INT, offsetof(Config, timeout)},
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{"--contimeout", NULL, OPT_POS_INT, offsetof(Config, contimeout)},
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{"--max-depth", NULL, OPT_NONNEG_INT, offsetof(Config, max_depth)},
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{"--max-size", NULL, OPT_ULL, offsetof(Config, max_size)},
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{"--min-size", NULL, OPT_ULL, offsetof(Config, min_size)},
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};
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static bool opt_is(const char* arg, const char* name, const char* alias) {
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return strcmp(arg, name) == 0 || (alias && strcmp(arg, alias) == 0);
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}
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static const OptionEntry* find_table_option(const char* arg) {
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for (size_t i = 0; i < sizeof(OPTION_TABLE) / sizeof(OPTION_TABLE[0]); i++)
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if (opt_is(arg, OPTION_TABLE[i].name, OPTION_TABLE[i].alias))
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return &OPTION_TABLE[i];
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return NULL;
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}
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static int apply_table_option(Config* config, const OptionEntry* entry, const char* value) {
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void* field = (char*)config + entry->offset;
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switch (entry->kind) {
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case OPT_FLAG:
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*(bool*)field = true;
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return 0;
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case OPT_STRING:
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return set_string_option((char**)field, value, entry->name);
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case OPT_POS_INT:
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return set_positive_int_option((int*)field, value, entry->name);
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case OPT_NONNEG_INT:
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return set_nonneg_int_option((int*)field, value, entry->name);
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case OPT_ULL: {
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unsigned long long v;
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if (parse_ull_arg(value, &v, entry->name) != 0)
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return -1;
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*(unsigned long long*)field = v;
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return 0;
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}
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}
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return -1;
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}
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/* Parse CLI arguments into config. Returns 0 on success, -1 on error, 1 for help/clean-exit. */
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int parse_args(Config* config, int argc, char* argv[], int* positional_args,
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int* positional_count) {
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for (int i = 1; i < argc; i++) {
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if (strcmp(argv[i], "--help") == 0) {
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const OptionEntry* entry = find_table_option(argv[i]);
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if (entry) {
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if (entry->kind != OPT_FLAG) {
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if (i + 1 >= argc) {
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fprintf(stderr, "Error: missing argument for %s\n", entry->name);
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return -1;
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}
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if (apply_table_option(config, entry, argv[++i]) != 0)
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return -1;
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} else if (apply_table_option(config, entry, NULL) != 0) {
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return -1;
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}
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continue;
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}
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if (opt_is(argv[i], "--help", NULL)) {
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print_usage();
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return 1;
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} else if (strcmp(argv[i], "-V") == 0 || strcmp(argv[i], "--version") == 0) {
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} else if (opt_is(argv[i], "-V", "--version")) {
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printf("fastsync version %s\n", PROTOCOL_VERSION);
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return 1;
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} else if (strcmp(argv[i], "-a") == 0 || strcmp(argv[i], "--archive") == 0) {
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} else if (opt_is(argv[i], "-a", "--archive")) {
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config->use_compression = true;
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config->use_multithreading = true;
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config->use_metadata = true;
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log_message(LOG_LEVEL_INFO, "Enabled archive mode (-c -m -M)");
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} else if (strcmp(argv[i], "-n") == 0 || strcmp(argv[i], "--dry-run") == 0) {
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config->dry_run = true;
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} else if (strcmp(argv[i], "-p") == 0 && i + 1 < argc) {
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} else if (opt_is(argv[i], "-p", NULL) && i + 1 < argc) {
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if (set_positive_int_option(&config->ssh_port, argv[++i], "-p") != 0)
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return -1;
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if (config->ssh_port > 65535) {
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log_message(LOG_LEVEL_ERROR, "SSH port must be 1-65535\n");
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return -1;
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}
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} else if (strcmp(argv[i], "--delete") == 0) {
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config->use_delete = true;
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} else if (strcmp(argv[i], "--exclude") == 0 && i + 1 < argc) {
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char** tmp = realloc(config->exclude_patterns, (config->exclude_count + 1) * sizeof(char*));
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if (!tmp) {
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fprintf(stderr, "Error: memory allocation failed for --exclude\n");
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} else if (opt_is(argv[i], "--exclude", NULL) && i + 1 < argc) {
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if (config_add_pattern(&config->exclude_patterns, &config->exclude_count, argv[++i],
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"--exclude") != 0)
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return -1;
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}
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config->exclude_patterns = tmp;
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char* dup = str_dup(argv[++i]);
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if (!dup) {
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fprintf(stderr, "Error: memory allocation failed for --exclude\n");
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} else if (opt_is(argv[i], "--include", NULL) && i + 1 < argc) {
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if (config_add_pattern(&config->include_patterns, &config->include_count, argv[++i],
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"--include") != 0)
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return -1;
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}
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config->exclude_patterns[config->exclude_count++] = dup;
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} else if (strcmp(argv[i], "--include") == 0 && i + 1 < argc) {
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char** tmp = realloc(config->include_patterns, (config->include_count + 1) * sizeof(char*));
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if (!tmp) {
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fprintf(stderr, "Error: memory allocation failed for --include\n");
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} else if (opt_is(argv[i], "--delta-block", NULL) && i + 1 < argc) {
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unsigned long long val;
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if (parse_ull_arg(argv[++i], &val, "--delta-block") != 0)
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return -1;
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}
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config->include_patterns = tmp;
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char* dup = str_dup(argv[++i]);
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if (!dup) {
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fprintf(stderr, "Error: memory allocation failed for --include\n");
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return -1;
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}
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config->include_patterns[config->include_count++] = dup;
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} else if (strcmp(argv[i], "--max-size") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long val = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0') {
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fprintf(stderr, "Error: --max-size must be a non-negative integer\n");
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return -1;
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}
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config->max_size = val;
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} else if (strcmp(argv[i], "--min-size") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long val = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0') {
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fprintf(stderr, "Error: --min-size must be a non-negative integer\n");
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return -1;
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}
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config->min_size = val;
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} else if (strcmp(argv[i], "--incremental") == 0) {
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config->use_incremental = true;
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} else if (strcmp(argv[i], "--delta") == 0) {
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config->use_delta = true;
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} else if (strcmp(argv[i], "--delta-block") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long val = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0') {
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fprintf(stderr, "Error: --delta-block must be a positive integer\n");
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return -1;
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}
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if (val >= DELTA_BLOCK_SIZE_MIN && val <= DELTA_BLOCK_SIZE_MAX)
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config->delta_block_size = (uint32_t)val;
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else
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fprintf(stderr, "Warning: --delta-block value %llu out of range, using default\n", val);
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} else if (strcmp(argv[i], "--delta-max") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long val = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0') {
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fprintf(stderr, "Error: --delta-max must be a positive integer\n");
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} else if (opt_is(argv[i], "--delta-max", NULL) && i + 1 < argc) {
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unsigned long long val;
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if (parse_ull_arg(argv[++i], &val, "--delta-max") != 0)
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return -1;
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}
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if (val >= DELTA_MIN_FILE_SIZE)
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config->delta_max_file_size = val;
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else
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fprintf(stderr, "Warning: --delta-max value %llu too small, using default\n", val);
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} else if (strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "-z") == 0) {
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} else if (opt_is(argv[i], "-c", "-z")) {
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config->use_compression = true;
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log_message(LOG_LEVEL_INFO, "Enabled Compression");
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if (i + 1 < argc) {
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@@ -201,30 +284,19 @@ int parse_args(Config* config, int argc, char* argv[], int* positional_args,
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i++;
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}
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}
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} else if (strcmp(argv[i], "--source-dir") == 0 && i + 1 < argc) {
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if (set_string_option(&config->send_directory, argv[++i], "--source-dir") != 0)
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return -1;
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} else if (strcmp(argv[i], "--dest-dir") == 0 && i + 1 < argc) {
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if (set_string_option(&config->receive_root_directory, argv[++i], "--dest-dir") != 0)
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return -1;
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} else if (strcmp(argv[i], "--save-to-disk") == 0) {
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config->save_to_disk = true;
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} else if (strcmp(argv[i], "-M") == 0 || strcmp(argv[i], "--preserve") == 0) {
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} else if (opt_is(argv[i], "-M", "--preserve")) {
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config->use_metadata = true;
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log_message(LOG_LEVEL_INFO, "Enabled metadata preservation");
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} else if (strcmp(argv[i], "-f") == 0 || strcmp(argv[i], "--sendfile") == 0) {
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} else if (opt_is(argv[i], "-f", "--sendfile")) {
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config->use_sendfile = true;
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log_message(LOG_LEVEL_INFO, "Enabled sendfile");
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} else if (strcmp(argv[i], "-m") == 0) {
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} else if (opt_is(argv[i], "-m", NULL)) {
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config->use_multithreading = true;
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log_message(LOG_LEVEL_INFO, "Enabled Multithreading");
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} else if (strcmp(argv[i], "-s") == 0) {
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} else if (opt_is(argv[i], "-s", NULL)) {
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config->use_chunk_serialization = true;
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log_message(LOG_LEVEL_INFO, "Enabled Chunk Serialization");
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} else if (strcmp(argv[i], "--server-host") == 0 && i + 1 < argc) {
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if (set_string_option(&config->server_host, argv[++i], "--server-host") != 0)
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return -1;
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} else if (strcmp(argv[i], "--server-port") == 0 && i + 1 < argc) {
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} else if (opt_is(argv[i], "--server-port", NULL) && i + 1 < argc) {
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if (!parse_positive_int(argv[++i], &config->server_port)) {
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fprintf(stderr, "Error: invalid --server-port value: %s\n", argv[i]);
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return -1;
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@@ -233,11 +305,11 @@ int parse_args(Config* config, int argc, char* argv[], int* positional_args,
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fprintf(stderr, "Error: server port must be 1-65535\n");
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return -1;
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}
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} else if (strcmp(argv[i], "--bwlimit") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long kbps = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0' || kbps == 0) {
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} else if (opt_is(argv[i], "--bwlimit", NULL) && i + 1 < argc) {
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unsigned long long kbps;
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if (parse_ull_arg(argv[++i], &kbps, "--bwlimit") != 0)
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return -1;
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if (kbps == 0) {
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fprintf(stderr, "Error: --bwlimit must be a positive integer\n");
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return -1;
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}
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@@ -247,45 +319,16 @@ int parse_args(Config* config, int argc, char* argv[], int* positional_args,
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}
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io_set_bwlimit(kbps * 1024);
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log_message(LOG_LEVEL_INFO, "Set bandwidth limit to %llu KB/s", kbps);
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} else if (strcmp(argv[i], "--progress") == 0) {
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config->show_progress = true;
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} else if (strcmp(argv[i], "--chunk-size") == 0 && i + 1 < argc) {
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char* end;
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errno = 0;
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unsigned long long val = strtoull(argv[++i], &end, 10);
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if (errno != 0 || *end != '\0' || val == 0) {
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} else if (opt_is(argv[i], "--chunk-size", NULL) && i + 1 < argc) {
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unsigned long long val;
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if (parse_ull_arg(argv[++i], &val, "--chunk-size") != 0)
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return -1;
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if (val == 0) {
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fprintf(stderr, "Error: --chunk-size must be a positive integer\n");
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return -1;
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}
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config->chunk_size = val;
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} else if (strcmp(argv[i], "--tls") == 0) {
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config->use_tls = true;
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} else if (strcmp(argv[i], "--cert") == 0 && i + 1 < argc) {
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if (set_string_option(&config->tls_cert, argv[++i], "--cert") != 0)
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return -1;
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} else if (strcmp(argv[i], "--key") == 0 && i + 1 < argc) {
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if (set_string_option(&config->tls_key, argv[++i], "--key") != 0)
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return -1;
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} else if (strcmp(argv[i], "--ca") == 0 && i + 1 < argc) {
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if (set_string_option(&config->tls_ca, argv[++i], "--ca") != 0)
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return -1;
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} else if (strcmp(argv[i], "--timeout") == 0 && i + 1 < argc) {
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if (set_positive_int_option(&config->timeout, argv[++i], "--timeout") != 0)
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return -1;
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} else if (strcmp(argv[i], "--contimeout") == 0 && i + 1 < argc) {
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if (set_positive_int_option(&config->contimeout, argv[++i], "--contimeout") != 0)
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return -1;
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} else if (strcmp(argv[i], "--backup") == 0) {
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config->backup = true;
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} else if (strcmp(argv[i], "--backup-dir") == 0 && i + 1 < argc) {
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if (set_string_option(&config->backup_dir, argv[++i], "--backup-dir") != 0)
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return -1;
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} else if (strcmp(argv[i], "--stats") == 0) {
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config->stats = true;
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} else if (strcmp(argv[i], "--max-depth") == 0 && i + 1 < argc) {
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if (set_nonneg_int_option(&config->max_depth, argv[++i], "--max-depth") != 0)
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return -1;
|
||||
} else if (strcmp(argv[i], "--log-file") == 0 && i + 1 < argc) {
|
||||
} else if (opt_is(argv[i], "--log-file", NULL) && i + 1 < argc) {
|
||||
if (config->log_file) {
|
||||
fclose(config->log_file);
|
||||
config->log_file = NULL;
|
||||
@@ -298,46 +341,20 @@ int parse_args(Config* config, int argc, char* argv[], int* positional_args,
|
||||
}
|
||||
config->log_file = lf;
|
||||
log_set_file(lf);
|
||||
} else if (strcmp(argv[i], "--exclude-from") == 0 && i + 1 < argc) {
|
||||
} else if (opt_is(argv[i], "--exclude-from", NULL) && i + 1 < argc) {
|
||||
if (read_patterns_from_file(argv[++i], &config->exclude_patterns, &config->exclude_count) !=
|
||||
0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "--include-from") == 0 && i + 1 < argc) {
|
||||
} else if (opt_is(argv[i], "--include-from", NULL) && i + 1 < argc) {
|
||||
if (read_patterns_from_file(argv[++i], &config->include_patterns, &config->include_count) !=
|
||||
0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "--partial") == 0) {
|
||||
config->partial = true;
|
||||
} else if (strcmp(argv[i], "--fastsync-server-path") == 0 && i + 1 < argc) {
|
||||
if (set_string_option(&config->fastsync_server_path, argv[++i], "--fastsync-server-path") !=
|
||||
0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
|
||||
} else if (opt_is(argv[i], "-v", "--verbose")) {
|
||||
set_log_level(LOG_LEVEL_DEBUG);
|
||||
} else if (strcmp(argv[i], "-l") == 0 || strcmp(argv[i], "--links") == 0) {
|
||||
config->follow_symlinks = true;
|
||||
} else if (strcmp(argv[i], "--copy-links") == 0) {
|
||||
config->copy_links = true;
|
||||
} else if (strcmp(argv[i], "--safe-links") == 0) {
|
||||
config->safe_links = true;
|
||||
} else if (strcmp(argv[i], "--copy-unsafe-links") == 0) {
|
||||
config->copy_unsafe_links = true;
|
||||
} else if (strcmp(argv[i], "-S") == 0 || strcmp(argv[i], "--sparse") == 0) {
|
||||
config->preserve_sparse = true;
|
||||
} else if (strcmp(argv[i], "--inplace") == 0) {
|
||||
config->inplace = true;
|
||||
} else if (strcmp(argv[i], "--partial-dir") == 0 && i + 1 < argc) {
|
||||
if (set_string_option(&config->partial_dir, argv[++i], "--partial-dir") != 0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "--suffix") == 0 && i + 1 < argc) {
|
||||
if (set_string_option(&config->suffix, argv[++i], "--suffix") != 0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "-T") == 0 && i + 1 < argc) {
|
||||
} else if (opt_is(argv[i], "-T", NULL) && i + 1 < argc) {
|
||||
if (set_positive_int_option(&config->timeout, argv[++i], "-T") != 0)
|
||||
return -1;
|
||||
} else if (strcmp(argv[i], "--checksum") == 0) {
|
||||
config->checksum = true;
|
||||
} else if (strcmp(argv[i], "--compress-level") == 0 && i + 1 < argc) {
|
||||
} else if (opt_is(argv[i], "--compress-level", NULL) && i + 1 < argc) {
|
||||
if (set_positive_int_option(&config->compression_level, argv[++i], "--compress-level") != 0)
|
||||
return -1;
|
||||
if (config->compression_level < 1 || config->compression_level > 22) {
|
||||
@@ -381,22 +398,11 @@ static int read_patterns_from_file(const char* filepath, char*** patterns, int*
|
||||
p[--len] = '\0';
|
||||
if (len == 0)
|
||||
continue;
|
||||
char** tmp = realloc(*patterns, (*count + 1) * sizeof(char*));
|
||||
if (!tmp) {
|
||||
fprintf(stderr, "Error: memory allocation failed for pattern file\n");
|
||||
if (config_add_pattern(patterns, count, p, "pattern file") != 0) {
|
||||
free(line);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
*patterns = tmp;
|
||||
char* dup = str_dup(p);
|
||||
if (!dup) {
|
||||
fprintf(stderr, "Error: memory allocation failed for pattern file\n");
|
||||
free(line);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
(*patterns)[(*count)++] = dup;
|
||||
}
|
||||
free(line);
|
||||
fclose(fp);
|
||||
|
||||
Reference in New Issue
Block a user