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[v1.01] Read file in udev by dynamically reallocating a buffer, instead of allocating a fixed size. Should fix issue #137

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Dr-Noob
2022-02-09 22:16:13 +01:00
parent 3046e84b4b
commit c4b2f31320
4 changed files with 22 additions and 4 deletions
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12
src/common/udev.c
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@@ -55,11 +55,17 @@ char* read_file(char* path, int* len) {
int bytes_read = 0;
int offset = 0;
int block = 128;
char* buf = emalloc(sizeof(char)*DEFAULT_FILE_SIZE);
memset(buf, 0, sizeof(char)*DEFAULT_FILE_SIZE);
int buf_size = block * 4;
char* buf = emalloc(sizeof(char) * buf_size);
memset(buf, 0, sizeof(char) * buf_size);
while ( (bytes_read = read(fd, buf+offset, block)) > 0 ) {
while ((bytes_read = read(fd, buf+offset, block)) > 0) {
offset += bytes_read;
if(offset + block > buf_size) {
buf = erealloc(buf, sizeof(char) * buf_size * 2);
memset(buf + buf_size, 0, sizeof(char) * buf_size);
buf_size = buf_size * 2;
}
}
if (close(fd) == -1) {