Warn when send-pack does nothing

[thirdparty/git.git] / compat / setenv.c

#include <stdlib.h>
#include <string.h>

int gitsetenv(const char *name, const char *value, int replace)
{
	int out;
	size_t namelen, valuelen;
	char *envstr;

	if (!name || !value) return -1;
	if (!replace) {
		char *oldval = NULL;
		oldval = getenv(name);
		if (oldval) return 0;
	}

	namelen = strlen(name);
	valuelen = strlen(value);
	envstr = malloc((namelen + valuelen + 2) * sizeof(char));
	if (!envstr) return -1;

	memcpy(envstr, name, namelen);
	envstr[namelen] = '=';
	memcpy(envstr + namelen + 1, value, valuelen);
	envstr[namelen + valuelen + 1] = 0;

	out = putenv(envstr);

	free(envstr);
	return out;
}