liboverride-test.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "zip.h"

Go to the source code of this file.

Functions
int	main (int argc, const char *argv[])

Function Documentation

main()

int main	(	int	argc,
		const char *	argv[]
	)

Definition at line 59 of file liboverride-test.c.

                                   {
    int verbose = 0;
    int error_code;
    
    if (argc > 1 && strcmp(argv[1], "-v") == 0) {
        verbose = 1;
    }
    
    if (getenv("LIBOVERRIDE_SET") == NULL) {
        char *cwd = getcwd(NULL, 0);
        char *so = (char *)malloc(strlen(cwd) + 64);
        if (so == NULL) {
            if (verbose) {
                printf("malloc failed\n");
            }
            exit(2);
        }
        sprintf(so, "%s/libliboverride.so", cwd);
        setenv("LIBOVERRIDE_SET", "1", 1);
        setenv("LD_PRELOAD", so, 1);
        execv(argv[0], (void *)argv);
        if (verbose) {
            printf("exec failed: %s\n", strerror(errno));
        }
        exit(2);
    }
    
    if (zip_open("nosuchfile", 0, &error_code) != NULL) {
        /* We expect failure. */
        if (verbose) {
            printf("open succeeded\n");
        }
        exit(1);
    }
    if (error_code != 32000) {
        /* Override didn't take, we didn't get its magic error code. */
        if (verbose) {
            printf("got unexpected error %d\n", error_code);
        }
        exit(1);
    }
    
    if (verbose) {
        printf("success\n");
    }
    exit(0);
}

References argv, test-lz4-speed::cwd, test-lz4-versions::error_code, test-lz4-list::exit, getenv(), malloc(), NULL, printf(), sprintf, verbose, and zip_open().