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#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;
}
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