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some fixes regarding caveats part of article at http://www.postgresql.org/docs/6.3/static/c3102.htm
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@ -58,7 +58,7 @@ extern DLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
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char *command;
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argv0_size = VARSIZE(argv0) - VARHDRSZ;
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command = (char *)malloc(argv0_size + 1);
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command = (char *)palloc(argv0_size + 1);
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memcpy(command, VARDATA(argv0), argv0_size);
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command[argv0_size] = '\0';
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@ -69,7 +69,7 @@ extern DLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
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*/
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result = system(command);
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free(command);
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pfree(command);
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PG_FREE_IF_COPY(argv0, 0);
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PG_RETURN_INT32(result);
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@ -91,7 +91,7 @@ extern DLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
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int32 outlen, linelen;
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argv0_size = VARSIZE(argv0) - VARHDRSZ;
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command = (char *)malloc(argv0_size + 1);
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command = (char *)palloc(argv0_size + 1);
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memcpy(command, VARDATA(argv0), argv0_size);
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command[argv0_size] = '\0';
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@ -101,7 +101,7 @@ extern DLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
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elog(NOTICE, "Command evaluated: %s", command);
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*/
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result = (char *)malloc(1);
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result = (char *)palloc(1);
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outlen = 0;
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pipe = popen(command, "r");
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@ -119,7 +119,7 @@ extern DLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
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result[outlen-1] = 0x00;
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}
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result_text = (text *)malloc(VARHDRSZ + strlen(result));
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result_text = (text *)palloc(VARHDRSZ + strlen(result));
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#ifdef SET_VARSIZE
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SET_VARSIZE(result_text, VARHDRSZ + strlen(result));
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#else
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@ -224,7 +224,7 @@ extern DLLIMPORT Datum sys_fileread(PG_FUNCTION_ARGS) {
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FILE *file;
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argv0_size = VARSIZE(argv0) - VARHDRSZ;
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filename = (char *)malloc(argv0_size + 1);
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filename = (char *)palloc(argv0_size + 1);
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memcpy(filename, VARDATA(argv0), argv0_size);
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filename[argv0_size] = '\0';
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@ -239,7 +239,7 @@ extern DLLIMPORT Datum sys_fileread(PG_FUNCTION_ARGS) {
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len = ftell(file);
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fseek(file, 0, SEEK_SET);
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buffer=(char *)malloc(len + 1);
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buffer=(char *)palloc(len + 1);
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if (!buffer)
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{
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fclose(file);
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@ -249,7 +249,7 @@ extern DLLIMPORT Datum sys_fileread(PG_FUNCTION_ARGS) {
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fread(buffer, len, 1, file);
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fclose(file);
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result = (char *)malloc(2*len + 1);
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result = (char *)palloc(2*len + 1);
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for (i=0, j=0; i<len; i++)
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{
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result[j++] = table[(buffer[i] >> 4) & 0x0f];
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@ -257,7 +257,7 @@ extern DLLIMPORT Datum sys_fileread(PG_FUNCTION_ARGS) {
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}
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result[j] = '\0';
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result_text = (text *)malloc(VARHDRSZ + strlen(result));
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result_text = (text *)palloc(VARHDRSZ + strlen(result));
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#ifdef SET_VARSIZE
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SET_VARSIZE(result_text, VARHDRSZ + strlen(result));
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#else
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@ -265,9 +265,9 @@ extern DLLIMPORT Datum sys_fileread(PG_FUNCTION_ARGS) {
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#endif
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memcpy(VARDATA(result_text), result, strlen(result));
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free(result);
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free(buffer);
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free(filename);
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pfree(result);
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pfree(buffer);
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pfree(filename);
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PG_RETURN_POINTER(result_text);
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}
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