X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/SecurityTests/cspxutils/genErrorStrings/genErrorStrings.cpp

diff --git a/SecurityTests/cspxutils/genErrorStrings/genErrorStrings.cpp b/SecurityTests/cspxutils/genErrorStrings/genErrorStrings.cpp
new file mode 100644
index 00000000..35e6e8dc
--- /dev/null
+++ b/SecurityTests/cspxutils/genErrorStrings/genErrorStrings.cpp
@@ -0,0 +1,211 @@
+/*
+ * genErrorStrings.cpp - parse supplied files, generate error table from
+ *		them of the following form:
+ *
+ * typedef struct {
+ *		CSSM_RETURN		errCode;
+ *		const char		*errStr;
+ * } ErrString;
+ *
+ * ErrString errStrings[] = {
+ *		{ CSSMERR_CSSM_INTERNAL_ERROR, "CSSMERR_CSSM_INTERNAL_ERROR" },
+ *		...
+ *		{ CSSMERR_CSP_FUNCTION_FAILED, "CSSMERR_CSP_FUNCTION_FAILED" }
+ * };
+ *
+ * The error table is written to stdout. 
+ */
+ 
+#include <stdlib.h>
+#include <strings.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <ctype.h>
+#include "fileIo.h"
+
+#define MAX_LINE_LEN	256
+
+static void usage(char **argv)
+{
+	printf("usage: %s inFile [inFile...]\n", argv[0]);
+	exit(1);
+}
+
+static void writePreamble(
+	FILE *f)
+{
+	fprintf(f, "/*\n");
+	fprintf(f, " * This file autogenerated by genErrorStrings. Do not edit. \n");
+	fprintf(f, " */\n\n");
+	fprintf(f, "#include <Security/Security.h>\n\n");
+	fprintf(f, "typedef struct {\n");
+	fprintf(f, "\tCSSM_RETURN errCode;\n");
+	fprintf(f, "\tconst char *errStr;\n");
+	fprintf(f, "} ErrString;\n\n");
+	fprintf(f, "static const ErrString errStrings[] = {\n");
+}
+
+static void writePostamble(
+	FILE *f)
+{
+	/* generate a null entry as terminator */
+	fprintf(f, "\t{0, NULL}\n");
+	fprintf(f, "};\n");
+}
+
+static void writeToken(
+	const char *token,
+	FILE *f)
+{
+	printf("\t{ %s,\"%s\"},\n", token, token);
+}
+
+/* skip whitespace (but not line terminators) */
+static void skipWhite(
+	const char *&cp,
+	unsigned &bytesLeft)
+{
+	while(bytesLeft != 0) {
+		switch(*cp) {
+			case ' ':
+			case '\t':
+				cp++;
+				bytesLeft--;
+				break;
+			default:
+				return;
+		}
+	}
+}
+
+static void getLine(
+	const char	*&cp,			// IN/OUT
+	unsigned	&bytesLeft,		// IN/OUT bytes left
+	char		*lineBuf)
+{
+	char *outp = lineBuf;
+	char *endOfOut = outp + MAX_LINE_LEN - 2;
+	while(bytesLeft != 0) {
+		switch(*cp) {
+			case '\n':
+			case '\r':
+				cp++;
+				bytesLeft--;
+				*outp = 0;
+				return;
+			default:
+				*outp++ = *cp++;
+				bytesLeft--;
+				break;
+		}
+		if(outp == endOfOut) {
+			printf("***getLine: line length exceeded!\n");
+			break;
+		}
+	}
+	/* end of file */
+	*outp = 0;
+}
+
+/* incoming line is NULL terminated even if it's empty */
+static bool isLineEmpty(
+	const char *cp)
+{
+	for( ; *cp; cp++) {
+		switch(*cp) {
+			case ' ':
+			case '\t':
+				break;
+			default:
+				return false;
+		}
+	}
+	return true;
+}
+
+/* process one file */
+static void processFile(
+	const char *fileName,
+	const char *in,
+	unsigned inLen,
+	FILE *f)
+{
+	char lineBuf[MAX_LINE_LEN];
+	unsigned lineLen;
+	const char *cp;
+	const char *endOfToken;
+	char tokenBuf[MAX_LINE_LEN];
+	unsigned tokenLen;
+	const char *lastSlash = fileName;
+	const char *nextSlash;
+	
+	while((nextSlash = strchr(lastSlash, '/')) != NULL) {
+		lastSlash = nextSlash + 1;
+	}
+	fprintf(f, "\t/* Error codes from %s */\n", lastSlash);
+	
+	while(inLen != 0) {
+		/* get one line, NULL terminated */
+		getLine(in, inLen, lineBuf);
+		if(isLineEmpty(lineBuf)) {
+			continue;
+		}
+		
+		/* skip leading whitespace */
+		lineLen = strlen(lineBuf);
+		cp = lineBuf;
+		skipWhite(cp, lineLen);
+		
+		/* interesting? */
+		if(strncmp((char *)cp, "CSSMERR_", 8)) {
+			continue;
+		}
+		
+		/*
+		 * cp is the start of the CSSMERR_ token
+		 * find end of token 
+		 */
+		endOfToken = cp + 8;
+		for(;;) {
+			if(isalnum(*endOfToken) || (*endOfToken == '_')) {
+				endOfToken++;
+				continue;
+			}
+			else {
+				break;
+			}
+		}
+		
+		/* endOfToken is one past the end of the CSSMERR_ token */
+		tokenLen = endOfToken - cp;
+		memmove(tokenBuf, cp, tokenLen);
+		tokenBuf[tokenLen] = '\0';
+		
+		/* write the stuff */
+		writeToken(tokenBuf, f);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	unsigned char *inFile;
+	unsigned inFileLen;
+	int dex;
+	
+	if(argc < 2) {
+		usage(argv);
+	}
+	
+	writePreamble(stdout);
+	writeToken("CSSM_OK", stdout);
+	for(dex=1; dex<argc; dex++) {
+		if(readFile(argv[dex], &inFile, &inFileLen)) {
+			printf("***Error reading %s. Aborting.\n", argv[dex]);
+			exit(1);
+		}
+		processFile(argv[dex], (const char *)inFile, inFileLen, stdout);
+		free(inFile);
+	}
+	writePostamble(stdout);
+	return 0;
+}