126 lines
2.8 KiB
C
126 lines
2.8 KiB
C
/*
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* Utility debug tool
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* Static Compile: gcc -Wall json_xpath.c -o json_xpath -l clixon
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gcc -O2 -o json_xpath json_xpath.c clixon_log.o clixon_err.o clixon_json.o clixon_xml.o clixon_xsl.o clixon_json_parse.tab.o clixon_xml_parse.tab.o lex.clixon_json_parse.o lex.clixon_xml_parse.o ../../../cligen/cligen_buf.o ../../../cligen/cligen_var.o ../../../cligen/cligen_gen.o ../../../cligen/cligen_cvec.o ../../../cligen/cligen_handle.o ../../../cligen/getline.o ../../../cligen/cligen_read.o ../../../cligen/cligen_match.o ../../../cligen/cligen_expand.o ../../../cligen/cligen_print.o
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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/* cligen */
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#include <cligen/cligen.h>
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/* clicon */
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#include <clixon/clixon.h>
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static int
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usage(char *argv0)
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{
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fprintf(stderr, "usage:%s <xpath> # XML/JSON expected on stdin\n"
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"\t-h Help\n"
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"\t-b Strip to body value (eg \"<a>val</a>\" --> \"val\"\n"
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"\t-j json input (not xml)\n",
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argv0);
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exit(0);
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}
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int
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main(int argc, char **argv)
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{
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int i;
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cxobj **xv;
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cxobj *x;
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cxobj *xn;
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cxobj *xb;
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char *xpath;
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int body = 0;
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int json = 0;
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size_t xlen = 0;
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size_t len;
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size_t buflen = 128;
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char *buf;
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char *p;
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int retval;
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char c;
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while ((c = getopt(argc, argv, "?hbj")) != -1)
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switch (c) {
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case '?':
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case 'h':
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usage(argv[0]);
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break;
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case 'b':
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body++;
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break;
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case 'j':
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json++;
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break;
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default:
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usage(argv[0]);
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}
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if (optind >= argc)
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usage(argv[0]);
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xpath=argv[optind];
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clicon_log_init("xpath", 0, CLICON_LOG_STDERR);
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if ((buf = malloc(buflen)) == NULL){
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perror("malloc");
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return -1;
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}
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/* |---------------|-------------|
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* buf p buf+buflen
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*/
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p = buf;
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memset(p, 0, buflen);
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while (1){
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if ((retval = read(0, p, buflen-(p-buf))) < 0){
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perror("read");
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return -1;
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}
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if (retval == 0)
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break;
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p += retval;
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len = p-buf;
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if (buf+buflen-p < 10){ /* allocate more */
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buflen *= 2;
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if ((buf = realloc(buf, buflen)) == NULL){
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perror("realloc");
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return -1;
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}
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p = buf+len;
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memset(p, 0, (buf+buflen)-p);
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}
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}
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if (json){
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if (json_parse_str(buf, &x) < 0)
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return -1;
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}
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else
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if (clicon_xml_parse_str(buf, &x) < 0)
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return -1;
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if (xpath_vec(x, xpath, &xv, &xlen) < 0)
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return -1;
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if (xv){
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for (i=0; i<xlen; i++){
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xn = xv[i];
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if (body)
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xb = xml_find(xn, "body");
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else
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xb = xn;
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if (xb){
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// xml2json(stdout, xb, 0);
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clicon_xml2file(stdout, xb, 0, 0);
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fprintf(stdout,"\n");
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}
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}
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free(xv);
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}
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if (x)
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xml_free(x);
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if (buf)
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free(buf);
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return 0;
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}
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