diff options
Diffstat (limited to 'src/user/lib/elfload.c')
| -rw-r--r-- | src/user/lib/elfload.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/user/lib/elfload.c b/src/user/lib/elfload.c index e3853ba..7c84f45 100644 --- a/src/user/lib/elfload.c +++ b/src/user/lib/elfload.c @@ -9,11 +9,17 @@ #include <user/lib/elfload.h> void elf_execf(FILE *f, char **argv, char **envp) { - const size_t cap = 0x60000; - size_t pos = 0; - void *buf = malloc(cap); // TODO a way to get file size + void *buf; + long buflen; - if (buf && fread(buf, 1, cap - pos, f)) + fseek(f, 0, SEEK_END); + buflen = ftell(f); + if (buflen < 0) return; /* errno set by fseek */ + buf = malloc(buflen); + + // TODO don't read the entire file into memory + fseek(f, 0, SEEK_SET); + if (buf && fread(buf, 1, buflen, f)) elf_exec(buf, argv, envp); free(buf); } |