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bio: do not leak memory if realloc fails

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This commit is contained in:
ftrvxmtrx 2014-05-02 03:58:38 +02:00
parent e610c573d7
commit f9b6c4c5a3
1 changed files with 5 additions and 2 deletions
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7
sys/src/libbio/brdstr.c
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@ -6,9 +6,11 @@ static char*
badd(char *p, int *np, char *data, int ndata, int delim, int nulldelim) badd(char *p, int *np, char *data, int ndata, int delim, int nulldelim)
{ {
int n; int n;
char *oldp;
n = *np; n = *np;
p = realloc(p, n+ndata+1); oldp = p;
p = realloc(oldp, n+ndata+1);
if(p){ if(p){
memmove(p+n, data, ndata); memmove(p+n, data, ndata);
n += ndata; n += ndata;
@ -17,7 +19,8 @@ badd(char *p, int *np, char *data, int ndata, int delim, int nulldelim)
else else
p[n] = '\0'; p[n] = '\0';
*np = n; *np = n;
} }else
free(oldp);
return p; return p;
} }