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Mini Shell
Mini Shell
/*
* Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>
*
* Jansson is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifdef HAVE_CONFIG_H
#include <jansson_private_config.h>
#endif
#include <ctype.h>
#include <jansson.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#if _WIN32
#include <fcntl.h> /* for _O_BINARY */
#include <io.h> /* for _setmode() */
static const char dir_sep = '\\';
#else
static const char dir_sep = '/';
#endif
struct config {
int indent;
int compact;
int preserve_order;
int ensure_ascii;
int sort_keys;
int strip;
int use_env;
int have_hashseed;
int hashseed;
int precision;
} conf;
#define l_isspace(c) ((c) == ' ' || (c) == '\n' || (c) == '\r' || (c) == '\t')
/* Return a pointer to the first non-whitespace character of str.
Modifies str so that all trailing whitespace characters are
replaced by '\0'. */
static const char *strip(char *str) {
size_t length;
char *result = str;
while (*result && l_isspace(*result))
result++;
length = strlen(result);
if (length == 0)
return result;
while (l_isspace(result[length - 1]))
result[--length] = '\0';
return result;
}
static char *loadfile(FILE *file) {
size_t fsize, ret;
char *buf;
fseek(file, 0, SEEK_END);
fsize = ftell(file);
fseek(file, 0, SEEK_SET);
buf = malloc(fsize + 1);
ret = fread(buf, 1, fsize, file);
if (ret != fsize)
exit(1);
buf[fsize] = '\0';
return buf;
}
static void read_conf(FILE *conffile) {
char *buffer, *line, *val;
buffer = loadfile(conffile);
for (line = strtok(buffer, "\r\n"); line; line = strtok(NULL, "\r\n")) {
if (!strncmp(line, "export ", 7))
continue;
val = strchr(line, '=');
if (!val) {
printf("invalid configuration line\n");
break;
}
*val++ = '\0';
if (!strcmp(line, "JSON_INDENT"))
conf.indent = atoi(val);
if (!strcmp(line, "JSON_COMPACT"))
conf.compact = atoi(val);
if (!strcmp(line, "JSON_ENSURE_ASCII"))
conf.ensure_ascii = atoi(val);
if (!strcmp(line, "JSON_PRESERVE_ORDER"))
conf.preserve_order = atoi(val);
if (!strcmp(line, "JSON_SORT_KEYS"))
conf.sort_keys = atoi(val);
if (!strcmp(line, "JSON_REAL_PRECISION"))
conf.precision = atoi(val);
if (!strcmp(line, "STRIP"))
conf.strip = atoi(val);
if (!strcmp(line, "HASHSEED")) {
conf.have_hashseed = 1;
conf.hashseed = atoi(val);
} else {
conf.have_hashseed = 0;
}
}
free(buffer);
}
static int cmpfile(const char *str, const char *path, const char *fname) {
char filename[1024], *buffer;
int ret;
FILE *file;
sprintf(filename, "%s%c%s", path, dir_sep, fname);
file = fopen(filename, "rb");
if (!file) {
if (conf.strip)
strcat(filename, ".strip");
else
strcat(filename, ".normal");
file = fopen(filename, "rb");
}
if (!file) {
printf("Error: test result file could not be opened.\n");
exit(1);
}
buffer = loadfile(file);
if (strcmp(buffer, str) != 0)
ret = 1;
else
ret = 0;
free(buffer);
fclose(file);
return ret;
}
int use_conf(char *test_path) {
int ret;
size_t flags = 0;
char filename[1024], errstr[1024];
char *buffer;
FILE *infile, *conffile;
json_t *json;
json_error_t error;
sprintf(filename, "%s%cinput", test_path, dir_sep);
if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, "Could not open \"%s\"\n", filename);
return 2;
}
sprintf(filename, "%s%cenv", test_path, dir_sep);
conffile = fopen(filename, "rb");
if (conffile) {
read_conf(conffile);
fclose(conffile);
}
if (conf.indent < 0 || conf.indent > 31) {
fprintf(stderr, "invalid value for JSON_INDENT: %d\n", conf.indent);
fclose(infile);
return 2;
}
if (conf.indent)
flags |= JSON_INDENT(conf.indent);
if (conf.compact)
flags |= JSON_COMPACT;
if (conf.ensure_ascii)
flags |= JSON_ENSURE_ASCII;
if (conf.preserve_order)
flags |= JSON_PRESERVE_ORDER;
if (conf.sort_keys)
flags |= JSON_SORT_KEYS;
if (conf.precision < 0 || conf.precision > 31) {
fprintf(stderr, "invalid value for JSON_REAL_PRECISION: %d\n", conf.precision);
fclose(infile);
return 2;
}
if (conf.precision)
flags |= JSON_REAL_PRECISION(conf.precision);
if (conf.have_hashseed)
json_object_seed(conf.hashseed);
if (conf.strip) {
/* Load to memory, strip leading and trailing whitespace */
buffer = loadfile(infile);
json = json_loads(strip(buffer), 0, &error);
free(buffer);
} else
json = json_loadf(infile, 0, &error);
fclose(infile);
if (!json) {
sprintf(errstr, "%d %d %d\n%s\n", error.line, error.column, error.position,
error.text);
ret = cmpfile(errstr, test_path, "error");
return ret;
}
buffer = json_dumps(json, flags);
ret = cmpfile(buffer, test_path, "output");
free(buffer);
json_decref(json);
return ret;
}
static int getenv_int(const char *name) {
char *value, *end;
long result;
value = getenv(name);
if (!value)
return 0;
result = strtol(value, &end, 10);
if (*end != '\0')
return 0;
return (int)result;
}
int use_env() {
int indent, precision;
size_t flags = 0;
json_t *json;
json_error_t error;
#ifdef _WIN32
/* On Windows, set stdout and stderr to binary mode to avoid
outputting DOS line terminators */
_setmode(_fileno(stdout), _O_BINARY);
_setmode(_fileno(stderr), _O_BINARY);
#endif
indent = getenv_int("JSON_INDENT");
if (indent < 0 || indent > 31) {
fprintf(stderr, "invalid value for JSON_INDENT: %d\n", indent);
return 2;
}
if (indent > 0)
flags |= JSON_INDENT(indent);
if (getenv_int("JSON_COMPACT") > 0)
flags |= JSON_COMPACT;
if (getenv_int("JSON_ENSURE_ASCII"))
flags |= JSON_ENSURE_ASCII;
if (getenv_int("JSON_PRESERVE_ORDER"))
flags |= JSON_PRESERVE_ORDER;
if (getenv_int("JSON_SORT_KEYS"))
flags |= JSON_SORT_KEYS;
precision = getenv_int("JSON_REAL_PRECISION");
if (precision < 0 || precision > 31) {
fprintf(stderr, "invalid value for JSON_REAL_PRECISION: %d\n", precision);
return 2;
}
if (getenv("HASHSEED"))
json_object_seed(getenv_int("HASHSEED"));
if (precision > 0)
flags |= JSON_REAL_PRECISION(precision);
if (getenv_int("STRIP")) {
/* Load to memory, strip leading and trailing whitespace */
size_t size = 0, used = 0;
char *buffer = NULL, *buf_ck = NULL;
while (1) {
size_t count;
size = (size == 0 ? 128 : size * 2);
buf_ck = realloc(buffer, size);
if (!buf_ck) {
fprintf(stderr, "Unable to allocate %d bytes\n", (int)size);
free(buffer);
return 1;
}
buffer = buf_ck;
count = fread(buffer + used, 1, size - used, stdin);
if (count < size - used) {
buffer[used + count] = '\0';
break;
}
used += count;
}
json = json_loads(strip(buffer), 0, &error);
free(buffer);
} else
json = json_loadf(stdin, 0, &error);
if (!json) {
fprintf(stderr, "%d %d %d\n%s\n", error.line, error.column, error.position,
error.text);
return 1;
}
json_dumpf(json, stdout, flags);
json_decref(json);
return 0;
}
int main(int argc, char *argv[]) {
int i;
char *test_path = NULL;
#ifdef HAVE_SETLOCALE
setlocale(LC_ALL, "");
#endif
if (argc < 2) {
goto usage;
}
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "--strip"))
conf.strip = 1;
else if (!strcmp(argv[i], "--env"))
conf.use_env = 1;
else
test_path = argv[i];
}
if (conf.use_env)
return use_env();
else {
if (!test_path)
goto usage;
return use_conf(test_path);
}
usage:
fprintf(stderr, "argc =%d\n", argc);
fprintf(stderr, "usage: %s [--strip] [--env] test_dir\n", argv[0]);
return 2;
}
Zerion Mini Shell 1.0