1 files changed, 127 insertions, 0 deletions
diff --git a/src/melon.c b/src/melon.c
new file mode 100644
index 0000000..d1a08d1
--- /dev/null
+++ b/src/melon.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2020, yzrh <yzrh@tuta.io>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "extern.h"
+#include "version.h"
+
+int
+main(int argc, char **argv, char **envp)
+{
+	printf("Melon " VERSION "." RELEASE "." PATCH EXTRA "\n");
+	printf("Copyright (c) 2020, yzrh <yzrh@tuta.io>\n\n");
+
+	cnki_t *param = NULL;
+
+	if (cnki_create(&param) != 0) {
+		fprintf(stderr, "%s: %s\n", argv[0], strerror(errno));
+		return EXIT_FAILURE;
+	}
+
+	int c;
+
+	for (;;) {
+		static struct option long_options[] = {
+			{"output", required_argument, 0, 'o'},
+			{"buffer", required_argument, 0, 'b'},
+			{"verbose", no_argument, 0, 'v'},
+			{0, 0, 0, 0}
+		};
+
+		int option_index = 0;
+
+		c = getopt_long(argc, argv, "o:b:v",
+			long_options, &option_index);
+
+		if (c == -1)
+			break;
+
+		switch (c) {
+			case 'o':
+				if ((param->fp_o = fopen(optarg, "w")) == NULL) {
+					fprintf(stderr, "%s: %s\n", argv[0],
+						strerror(errno));
+					return EXIT_FAILURE;
+				}
+				break;
+			case 'b':
+				param->size_buf = atoi(optarg);
+				break;
+			case 'v':
+				param->stat += 1;
+				break;
+			case '?':
+				break;
+			default:
+				abort();
+		}
+	}
+
+	if (argc - optind == 1) {
+		if (param->fp_o == NULL) {
+			if (param->stat == 0) {
+				param->fp_o = stdout;
+			} else {
+				fprintf(stderr, "%s: --verbose ", argv[0]);
+				fprintf(stderr, "must not be set ");
+				fprintf(stderr, "when using stdout\n");
+				return EXIT_FAILURE;
+			}
+		}
+
+		if ((param->fp_i = fopen(argv[optind], "r")) == NULL) {
+			fprintf(stderr, "%s: %s\n", argv[0],
+				strerror(errno));
+			return EXIT_FAILURE;
+		}
+
+		cnki_info(&param);
+
+		if (strcmp(param->file_stat->type, "%PDF") == 0) {
+			if (cnki_pdf(&param) != 0) {
+				fprintf(stderr, "%s: %s\n", argv[0],
+					strerror(errno));
+				return EXIT_FAILURE;
+			}
+		} else if (strcmp(param->file_stat->type, "CAJ") == 0) {
+			if (cnki_caj(&param) != 0) {
+				fprintf(stderr, "%s: %s\n", argv[0],
+					strerror(errno));
+				return EXIT_FAILURE;
+			}
+		} else if (strcmp(param->file_stat->type, "HN") == 0) {
+			if (cnki_nh(&param) != 0) {
+				fprintf(stderr, "%s: %s\n", argv[0],
+					strerror(errno));
+				return EXIT_FAILURE;
+			}
+		} else if (strcmp(param->file_stat->type, "KDH ") == 0) {
+			if (cnki_kdh(&param) != 0) {
+				fprintf(stderr, "%s: %s\n", argv[0],
+					strerror(errno));
+				return EXIT_FAILURE;
+			}
+		} else {
+			fprintf(stderr, "%s: %s\n", argv[0],
+				"Invalid file");
+			return EXIT_FAILURE;
+		}
+
+		fclose(param->fp_i);
+		fclose(param->fp_o);
+	} else {
+		fprintf(stderr, "Usage: %s ", argv[0]);
+		fprintf(stderr, "[--output --buffer --verbose] file\n");
+		return EXIT_FAILURE;
+	}
+
+	cnki_destroy(&param);
+}