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fixed doubling memory bug for config lines longer then 128

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This commit is contained in:
taiyu 2015-08-18 01:32:54 -07:00
parent 780893a933
commit eff55d0de1
1 changed files with 6 additions and 7 deletions
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13
sway/readline.c
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@ -3,7 +3,7 @@
#include <stdio.h>
char *read_line(FILE *file) {
int i = 0, length = 0, size = 128;
int length = 0, size = 128;
char *string = malloc(size);
if (!string) {
return NULL;
@ -16,21 +16,20 @@ char *read_line(FILE *file) {
if (c == '\r') {
continue;
}
if (i == size) {
string = realloc(string, length *= 2);
if (length == size) {
string = realloc(string, size *= 2);
if (!string) {
return NULL;
}
}
string[i++] = (char)c;
length++;
string[length++] = c;
}
if (i + 1 != size) {
if (length + 1 == size) {
string = realloc(string, length + 1);
if (!string) {
return NULL;
}
}
string[i] = '\0';
string[length] = '\0';
return string;
}