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(putenv): bug fixes from <hin@stacken.kth.se>

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@8070 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
2000-03-26 23:08:24 +00:00
parent c244cd2e52
commit 32996fd31f
1 changed files with 13 additions and 9 deletions
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22
lib/roken/putenv.c
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@@ -47,30 +47,34 @@ extern char **environ;
* Makes the value of the environment variable name equal to
* value by altering an existing variable or creating a new one.
*/
int putenv(const char *string)
int
putenv(const char *string)
{
int i;
const char *eq = (const char *)strchr(string, '=');
int len;
len = string - strchr(string, '=') + 1;
if (eq == NULL)
return 1;
len = eq - string;
if(environ == NULL){
if(environ == NULL) {
environ = malloc(sizeof(char*));
if(environ == NULL)
return 1;
environ[0] = NULL;
}
for(i = 0; environ[i]; i++)
if(strncmp(string, environ[i], len)){
environ[len] = string;
for(i = 0; environ[i] != NULL; i++)
if(strncmp(string, environ[i], len) == 0) {
environ[i] = string;
return 0;
}
environ = realloc(environ, sizeof(char*) * (i + 1));
environ = realloc(environ, sizeof(char*) * (i + 2));
if(environ == NULL)
return 1;
environ[i] = string;
environ[i] = string;
environ[i+1] = NULL;
return 0;
}