search for: mprotect

...0\3\0>\0\1\0\0\0\220a\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=153128, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdeec005000 mmap(NULL, 2221160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdeebbde000 mprotect(0x7fdeebbf8000, 2093056, PROT_NONE) = 0 mmap(0x7fdeebdf7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7fdeebdf7000 mmap(0x7fdeebdf9000, 13416, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdeebdf9000 close(3)...

...6_64-linux-gnu/libcap.so.2", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\26\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=17112, ...}) = 0 mmap(NULL, 2112384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc136678000 mprotect(0x7fc13667c000, 2093056, PROT_NONE) = 0 mmap(0x7fc13687b000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fc13687b000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = 0 open("/lib/x86_64-linux-gnu/libresolv.so.2...

..._RDONLY) = 3 > read(3, > "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\26\0\0\0\0\0\0"..., > 832) = 832 > fstat(3, {st_mode=S_IFREG|0644, st_size=17112, ...}) = 0 > mmap(NULL, 2112384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) > = 0x7fc136678000 > mprotect(0x7fc13667c000, 2093056, PROT_NONE) = 0 > mmap(0x7fc13687b000, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fc13687b000 > close(3) = 0 > access("/etc/ld.so.nohwcap", F_OK) = 0 > open("/lib/x86_64...

...-gnu/libz.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \"\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=109144, ...}) = 0 mmap(NULL, 2204200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7efe7c9c7000 mprotect(0x7efe7c9e1000, 2093056, PROT_NONE) = 0 mmap(0x7efe7cbe0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7efe7cbe0000 close(3)??????????????????????????????? = 0 open("/usr/local/dovecot-2.2.36/lib/dovecot/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOEN...

...ot;/usr/lib64/libldb.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000l\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=197984, ...}) = 0 mmap(NULL, 2293632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2ad3af288000 mprotect(0x2ad3af2b7000, 2097152, PROT_NONE) = 0 mmap(0x2ad3af4b7000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2f000) = 0x2ad3af4b7000 close(3) = 0 open("/usr/lib64/libpopt.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\...

...1080) = 1080 lseek(3, 7001, SEEK_SET) = 7001 read(3, "A.\0\0\0aeabi\0\1$\0\0\0\0056\0\6\6\10\1\t\1\n\2\22\4\24\1\25"..., 47) = 47 fstat64(3, {st_mode=S_IFREG|0755, st_size=10170, ...}) = 0 mmap2(NULL, 39740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6f0b000 mprotect(0xb6f0d000, 28672, PROT_NONE) = 0 mmap2(0xb6f14000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb6f14000 close(3) = 0 munmap(0xb6f36000, 44) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mod...

...4/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320i\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=155784, ...}) = 0 mmap(NULL, 2255184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fde2ca6a000 mprotect(0x7fde2ca8e000, 2093056, PROT_NONE) = 0 mmap(0x7fde2cc8d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7fde2cc8d000 mmap(0x7fde2cc8f000, 6480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fde2cc8f000 close(3)...

...t; read(3, >> "A.\0\0\0aeabi\0\1$\0\0\0\0056\0\6\6\10\1\t\1\n\2\22\4\24\1\25"..., >> 47) = 47 >> fstat64(3, {st_mode=S_IFREG|0755, st_size=10170, ...}) = 0 >> mmap2(NULL, 39740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, >> 0) = 0xb6f0b000 >> mprotect(0xb6f0d000, 28672, PROT_NONE) = 0 >> mmap2(0xb6f14000, 4096, PROT_READ|PROT_WRITE, >> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb6f14000 >> close(3) = 0 >> munmap(0xb6f36000, 44) = 0 >> open("/etc/ld.so.cach...

.../libdovecot-storage.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\313\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=898088, ...}) = 0 mmap(NULL, 2993560, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ff03e939000 mprotect(0x7ff03ea0d000, 2093056, PROT_NONE) = 0 mmap(0x7ff03ec0c000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd3000) = 0x7ff03ec0c000 close(3) = 0 open("/usr/lib/dovecot/libdovecot.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\...

...t;\0\1\0\0\0\0\242\242\3071\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=862264, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b99123e6000 mmap(0x31c7a00000, 2955496, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x31c7a00000 mprotect(0x31c7acb000, 2093056, PROT_NONE) = 0 mmap(0x31c7cca000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xca000) = 0x31c7cca000 close(3) = 0 open("/usr/lib64/dovecot/libdovecot.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\...

...\0\1$\0\0\0\0056\0\6\6\10\1\t\1\n\2\22\4\24\1\25"..., >>>> 47) = 47 >>>> fstat64(3, {st_mode=S_IFREG|0755, st_size=10170, ...}) = 0 >>>> mmap2(NULL, 39740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, >>>> 3, 0) = 0xb6f0b000 >>>> mprotect(0xb6f0d000, 28672, PROT_NONE) = 0 >>>> mmap2(0xb6f14000, 4096, PROT_READ|PROT_WRITE, >>>> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb6f14000 >>>> close(3) = 0 >>>> munmap(0xb6f36000, 44) = 0 &gt...

...= 7001 > read(3, > "A.\0\0\0aeabi\0\1$\0\0\0\0056\0\6\6\10\1\t\1\n\2\22\4\24\1\25"..., > 47) = 47 > fstat64(3, {st_mode=S_IFREG|0755, st_size=10170, ...}) = 0 > mmap2(NULL, 39740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, > 0) = 0xb6f0b000 > mprotect(0xb6f0d000, 28672, PROT_NONE) = 0 > mmap2(0xb6f14000, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb6f14000 > close(3) = 0 > munmap(0xb6f36000, 44) = 0 > open("/etc/ld.so.cache", O_RDONLY)...

..."A.\0\0\0aeabi\0\1$\0\0\0\0056\0\6\6\10\1\t\1\n\2\22\4\24\1\25"..., >>> 47) = 47 >>> fstat64(3, {st_mode=S_IFREG|0755, st_size=10170, ...}) = 0 >>> mmap2(NULL, 39740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, >>> 3, 0) = 0xb6f0b000 >>> mprotect(0xb6f0d000, 28672, PROT_NONE) = 0 >>> mmap2(0xb6f14000, 4096, PROT_READ|PROT_WRITE, >>> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb6f14000 >>> close(3) = 0 >>> munmap(0xb6f36000, 44) = 0 >>> open(&...

...0\0\3\0>\0\1\0\0\0\20g\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0555, st_size=346071, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f46579bf000 mmap(NULL, 2397472, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f465755e000 mprotect(0x7f465759e000, 2097152, PROT_NONE) = 0 mmap(0x7f465779e000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x40000) = 0x7f465779e000 mmap(0x7f46577a6000, 5408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f46577a6000 close(3)...

...= 0 open("/lib/libacl.so.1", O_RDONLY) = 7 read(7, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\0\25"..., 1024) = 1024 fstat64(0x7, 0x7fffec50) = 0 mmap(0xffda000, 88460, PROT_READ|PROT_EXEC, MAP_PRIVATE, 7, 0) = 0xffda000 mprotect(0xffdf000, 67980, PROT_NONE) = 0 mmap(0xffea000, 24576, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 7, 0) = 0xffea000 close(7) = 0 open("/usr/lib/libcups.so.2", O_RDONLY) = 7 read(7, "\177ELF\1\2\1\0\0\0\0\0\0\0\0\0\0\3\0\24\0\0\0\1\0\0\247...

While experimenting a bit, I found that for some reason, locking indexes with flock is problematic, but only if user is taken from passwd-file. The host system is openbsd 3.9, dovecot's configuration is added at the bottom. Authentication is from two places - first from mentioned passwd-file, then from passwd file using bsdauth (in this case, there're no problems with flock). So, if

...open("/lib/libresolv.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320\'\0"..., 1024) = 1024 fstat64(3, {st_mode=S_IFREG|0755, st_size=261734, ...}) = 0 old_mmap(NULL, 71236, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40025000 mprotect(0x40033000, 13892, PROT_NONE) = 0 old_mmap(0x40033000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xd000) = 0x40033000 old_mmap(0x40034000, 9796, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40034000 close(3) = 0 open(&qu...

...\0\0\3\0>\0\1\0\0\0`\t\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=18848, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3eef676000 mmap(NULL, 2105632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f3eef24f000 mprotect(0x7f3eef251000, 2093056, PROT_NONE) = 0 mmap(0x7f3eef450000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f3eef450000 close(3) = 0 openat(AT_FDCWD, "/usr/lib64/dovecot/old-stats/libdovecot.so.0", O_RDONLY|O_CLOEXEC) = -1...

...x-gnu/libip4tc.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\26\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=27424, ...}) = 0 mmap(NULL, 2122496, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f8b22de4000 mprotect(0x7f8b22dea000, 2093056, PROT_NONE) = 0 mmap(0x7f8b22fe9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7f8b22fe9000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("...

It should be noted that a symlink to the built llvm-config will return the paths for the system llvm instead of the built llvm; it's fine on OS X though. Some differences in realpath?