X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=elf%2Fsoname.c;h=aa683a53acb3bf726218dc37af3c44e51a396c1a;hb=489ad6b12bcdfd554acd0908a1770187e76e436d;hp=99770159b4e3109a0cd0175c7faf87994fb99198;hpb=8a8558dfc350661e2f9af3a0e3a41be7e2cd8154;p=zpackage diff --git a/elf/soname.c b/elf/soname.c index 9977015..aa683a5 100644 --- a/elf/soname.c +++ b/elf/soname.c @@ -22,6 +22,13 @@ int main(int ac, char **av) { char *name, *dynname; Elf64_Dyn *dent; + if (lstat(av[1], &sbuf) == -1) { + exit(1); + } + if (!S_ISREG(sbuf.st_mode)) { + exit(1); + } + elffd = open(av[1], O_RDONLY); if (elffd == -1) { exit(1); @@ -29,6 +36,9 @@ int main(int ac, char **av) { if (fstat(elffd, &sbuf) == -1) { exit(1); } + if (!S_ISREG(sbuf.st_mode)) { + exit(1); + } elfbase = mmap(0, sbuf.st_size, PROT_READ,MAP_PRIVATE, elffd, 0); if (!elfbase) {