emote2ss

commit 8533b3f31397e52afc7ada17e8529629569f9998
parent acff4a471145bb9e9842e0d0881cd9fd35b67936
Author: bsandro <email@bsandro.tech>
Date:   Thu, 20 Jul 2023 08:35:55 +0300

Handling different directories and respecting PATH_MAX from limits.h

Diffstat:
M
Makefile
 | 
2
+-
M
src/main.c
 | 
30
++++++++++++++++++++++--------

2 files changed, 23 insertions(+), 9 deletions(-)
diff --git a/Makefile b/Makefile
@@ -27,5 +27,5 @@ run: $(NAME)
 	@./$(NAME)
 
 test: $(NAME)
-	@./$(NAME) FlanClap.webp 5
+	@./$(NAME) FlanClap.webp 7
 	feh atlas_FlanClap.webp
diff --git a/src/main.c b/src/main.c
@@ -2,15 +2,27 @@
  * Based on the libwebp example program "anim_dump"
  */
 
+#define _GNU_SOURCE
+
 #include <stdio.h>
 #include "webp/decode.h"
 #include "webp/encode.h"
 #include "webp/demux.h"
 #include <stdbool.h>
 #include <stdlib.h>
+#include <libgen.h>
+#include <string.h>
 #include <strings.h>
 #include <assert.h>
 
+#ifdef __OpenBSD__
+#include <sys/limits.h>
+#endif
+
+#ifdef __linux__
+#include <linux/limits.h>
+#endif
+
 #define NUM_CHANNELS 4
 
 static void print_webp_version() {
@@ -194,17 +206,19 @@ int main(int argc, const char **argv) {
 		return 0;
 	}
 
-	char *outname = calloc(255, 1);
-	assert(outname!=NULL);
 	AnimatedImage img = {0};
-	const char *inname = argv[1];
+	char out_name[PATH_MAX];
+	char *in_path = strndup(argv[1], PATH_MAX-1);
+	assert(in_path!=NULL);
 	int cols = atoi(argv[2]);
-	assert(read_webp(inname, &img) == 0);
-	int n = snprintf(outname, 254, "atlas_%s", inname);
+	int r = read_webp(in_path, &img);
+	assert(r==0);
+	char *in_name = basename((char *)in_path);
+	char *in_dir = dirname((char *)in_path);
+	int n = snprintf(out_name, NAME_MAX, "atlas_%s", in_name);
 	assert(n>0);
-	printf("[%s -> %s(%d)]\ndimensions: %dx%d\nframes: %d\n", inname, outname, cols, img.width, img.height, img.frame_count);
-	write_webp(outname, &img, cols);
-	free(outname);
+	printf("[path:%s][%s -> %s(%d)]\ndimensions: %dx%d\nframes: %d\n", in_dir, in_name, out_name, cols, img.width, img.height, img.frame_count);
+	write_webp(out_name, &img, cols);
 
 	return 0;
 }