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/*
csvvalid - determine if files are properly formed CSV files and display
position of first offending byte if not
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <csv.h>
int
main (int argc, char *argv[])
{
FILE *fp;
int i;
struct csv_parser p;
char buf[1024];
size_t bytes_read;
size_t pos;
size_t retval;
if (argc < 2) {
fprintf(stderr, "Usage: csvvalid files\n");
exit(EXIT_FAILURE);
}
if (csv_init(&p, CSV_STRICT) != 0) {
fprintf(stderr, "Failed to initialize csv parser\n");
exit(EXIT_FAILURE);
}
for (i = 1; i < argc; i++) {
pos = 0;
fp = fopen(argv[i], "rb");
if (!fp) {
fprintf(stderr, "Failed to open %s: %s, skipping\n", argv[i], strerror(errno));
continue;
}
while ((bytes_read=fread(buf, 1, 1024, fp)) > 0) {
if ((retval = csv_parse(&p, buf, bytes_read, NULL, NULL, NULL)) != bytes_read) {
if (csv_error(&p) == CSV_EPARSE) {
printf("%s: malformed at byte %lu\n", argv[i], (unsigned long)pos + retval + 1);
goto end;
} else {
printf("Error while processing %s: %s\n", argv[i], csv_strerror(csv_error(&p)));
goto end;
}
}
pos += bytes_read;
}
printf("%s well-formed\n", argv[i]);
end:
fclose(fp);
csv_fini(&p, NULL, NULL, NULL);
pos = 0;
}
csv_free(&p);
return EXIT_SUCCESS;
}
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