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Use an error_exit macro for tools

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This commit is contained in:
Rangi 2021-09-02 03:04:40 -04:00
parent 0d1a029e81
commit c8f06f45d5
3 changed files with 10 additions and 16 deletions
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20
tools/common.h
View File

@ -11,6 +11,8 @@
#include <unistd.h>
#include <getopt.h>
#define error_exit(...) exit((fprintf(stderr, __VA_ARGS__), 1))
int getopt_long_index;
#define getopt_long(argc, argv, optstring, longopts) getopt_long(argc, argv, optstring, longopts, &getopt_long_index)
@ -18,8 +20,7 @@ void *malloc_verbose(size_t size) {
errno = 0;
void *m = malloc(size);
if (!m) {
fprintf(stderr, "Could not allocate %zu bytes: %s\n", size, strerror(errno));
exit(1);
error_exit("Could not allocate %zu bytes: %s\n", size, strerror(errno));
}
return m;
}
@ -29,8 +30,7 @@ FILE *fopen_verbose(const char *filename, char rw) {
errno = 0;
FILE *f = fopen(filename, mode);
if (!f) {
fprintf(stderr, "Could not open file \"%s\": %s\n", filename, strerror(errno));
exit(1);
error_exit("Could not open file \"%s\": %s\n", filename, strerror(errno));
}
return f;
}
@ -38,18 +38,16 @@ FILE *fopen_verbose(const char *filename, char rw) {
void fread_verbose(uint8_t *data, size_t size, const char *filename, FILE *f) {
errno = 0;
if (fread(data, 1, size, f) != size) {
fprintf(stderr, "Could not read from file \"%s\": %s\n", filename, strerror(errno));
fclose(f);
exit(1);
error_exit("Could not read from file \"%s\": %s\n", filename, strerror(errno));
}
}
void fwrite_verbose(const uint8_t *data, size_t size, const char *filename, FILE *f) {
errno = 0;
if (fwrite(data, 1, size, f) != size) {
fprintf(stderr, "Could not write to file \"%s\": %s\n", filename, strerror(errno));
fclose(f);
exit(1);
error_exit("Could not write to file \"%s\": %s\n", filename, strerror(errno));
}
}
@ -63,8 +61,7 @@ long file_size_verbose(const char *filename, FILE *f) {
}
}
if (size == -1) {
fprintf(stderr, "Could not measure file \"%s\": %s\n", filename, strerror(errno));
exit(1);
error_exit("Could not measure file \"%s\": %s\n", filename, strerror(errno));
}
return size;
}
@ -94,9 +91,8 @@ uint32_t read_png_width_verbose(const char *filename) {
'I', 'H', 'D', 'R', // IHDR chunk type
};
if (memcmp(header, expected_header, sizeof(header))) {
fprintf(stderr, "Not a valid PNG file: \"%s\"\n", filename);
fclose(f);
exit(1);
error_exit("Not a valid PNG file: \"%s\"\n", filename);
}
uint8_t bytes[4] = {0};
fread_verbose(bytes, sizeof(bytes), filename, f);

3
tools/png_dimensions.c
View File

@ -7,8 +7,7 @@ void usage() {
uint8_t read_dimensions(const char *filename) {
uint32_t width_px = read_png_width_verbose(filename);
if (width_px != 40 && width_px != 48 && width_px != 56) {
fprintf(stderr, "Not a valid width for \"%s\": %" PRIu32 " px\n", filename, width_px);
exit(1);
error_exit("Not a valid width for \"%s\": %" PRIu32 " px\n", filename, width_px);
}
uint8_t width_tiles = (uint8_t)(width_px / 8);
return (width_tiles << 4) | width_tiles;

3
tools/scan_includes.c
View File

@ -9,8 +9,7 @@ void scan_file(const char *filename, bool strict) {
FILE *f = fopen(filename, "rb");
if (!f) {
if (strict) {
fprintf(stderr, "Could not open file \"%s\": %s\n", filename, strerror(errno));
exit(1);
error_exit("Could not open file \"%s\": %s\n", filename, strerror(errno));
} else {
return;
}