diff options
Diffstat (limited to 'src/cmd/factotum/util.c')
| -rw-r--r-- | src/cmd/factotum/util.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/cmd/factotum/util.c b/src/cmd/factotum/util.c index 54b33519..accddddd 100644 --- a/src/cmd/factotum/util.c +++ b/src/cmd/factotum/util.c @@ -36,6 +36,7 @@ char* estrappend(char *s, char *fmt, ...) { char *t; + int l; va_list arg; va_start(arg, fmt); @@ -43,8 +44,9 @@ estrappend(char *s, char *fmt, ...) if(t == nil) sysfatal("out of memory"); va_end(arg); - s = erealloc(s, strlen(s)+strlen(t)+1); - strcat(s, t); + l = s ? strlen(s) : 0; + s = erealloc(s, l+strlen(t)+1); + strcpy(s+l, t); free(t); return s; } |