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| author | Jim Meyering <jim@meyering.net> | 2007-04-10 01:01:44 +0200 |
|---|---|---|
| committer | Junio C Hamano <junkio@cox.net> | 2007-04-14 19:47:20 -0700 |
| commit | 61d6ed139ff572937c8ff342cfa16e40d2f9011e (patch) | |
| tree | 29b2e07cd60e44e0ad076c7d5b9fb690f346c737 /builtin-update-index.c | |
| parent | e94b4d2f2a3a9b2aaaac15c33d5d31f76531ecbf (diff) | |
| download | git-61d6ed139ff572937c8ff342cfa16e40d2f9011e.tar.gz | |
sscanf/strtoul: parse integers robustly
* builtin-grep.c (strtoul_ui): Move function definition from here, to...
* git-compat-util.h (strtoul_ui): ...here, with an added "base" parameter.
* builtin-grep.c (cmd_grep): Update use of strtoul_ui to include base, "10".
* builtin-update-index.c (read_index_info): Diagnose an invalid mode integer
that is out of range or merely larger than INT_MAX.
(cmd_update_index): Use strtoul_ui, not sscanf.
* convert-objects.c (write_subdirectory): Likewise.
Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'builtin-update-index.c')
| -rw-r--r-- | builtin-update-index.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/builtin-update-index.c b/builtin-update-index.c index 71cef633c0..6ed61ebc57 100644 --- a/builtin-update-index.c +++ b/builtin-update-index.c @@ -227,6 +227,7 @@ static void read_index_info(int line_termination) char *path_name; unsigned char sha1[20]; unsigned int mode; + unsigned long ul; int stage; /* This reads lines formatted in one of three formats: @@ -249,9 +250,12 @@ static void read_index_info(int line_termination) if (buf.eof) break; - mode = strtoul(buf.buf, &ptr, 8); - if (ptr == buf.buf || *ptr != ' ') + errno = 0; + ul = strtoul(buf.buf, &ptr, 8); + if (ptr == buf.buf || *ptr != ' ' + || errno || (unsigned int) ul != ul) goto bad_line; + mode = ul; tab = strchr(ptr, '\t'); if (!tab || tab - ptr < 41) @@ -547,7 +551,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) if (i+3 >= argc) die("git-update-index: --cacheinfo <mode> <sha1> <path>"); - if ((sscanf(argv[i+1], "%o", &mode) != 1) || + if ((strtoul_ui(argv[i+1], 8, &mode) != 1) || get_sha1_hex(argv[i+2], sha1) || add_cacheinfo(mode, sha1, argv[i+3], 0)) die("git-update-index: --cacheinfo" |