key_value3.c

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#include <grass/gis.h>

int G_write_key_value_file(const char *file,
                           const struct Key_Value *kv, int *stat)
{
    FILE *fd;

    *stat = 0;
    fd = fopen(file, "w");
    if (fd == NULL)
        *stat = -3;
    else if (G_fwrite_key_value(fd, kv) != 0 || fclose(fd) == EOF)
        *stat = -4;
    return (*stat != 0);
}

struct Key_Value *G_read_key_value_file(const char *file, int *stat)
{
    FILE *fd;
    struct Key_Value *kv;

    *stat = 0;
    fd = fopen(file, "r");
    if (fd == NULL) {
        *stat = -1;
        return NULL;
    }
    kv = G_fread_key_value(fd);
    fclose(fd);
    if (kv == NULL)
        *stat = -2;
    return kv;
}