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authorEric Andersen2004-04-06 12:06:03 +0000
committerEric Andersen2004-04-06 12:06:03 +0000
commit7e496a71cfe54f192508427f9c8ea5be764952bd (patch)
tree63e7bbabef905c096dde2f5f601c60c26d214c33 /modutils
parentd298bd1d513ddf077c51df5f0dfb3a5b2d0c28ee (diff)
downloadbusybox-7e496a71cfe54f192508427f9c8ea5be764952bd.zip
busybox-7e496a71cfe54f192508427f9c8ea5be764952bd.tar.gz
Michael Tokarev, mjt at tls dot msk dot ru writes:
Fix parsing of all tag-value pairs (in modules.conf in particular). Without this fix, code chokes badly on lines where either value or both tag+value are missing, like bare alias line, or alias w/o the value like alias some-module (syntactically incorrect, but no need for coredumps either).
Diffstat (limited to 'modutils')
-rw-r--r--modutils/modprobe.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 7078af2..df5d4bb 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -67,15 +67,17 @@ int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
buffer++;
tag = value = buffer;
while ( !isspace ( *value ))
- value++;
+ if (!*value) return 0;
+ else value++;
*value++ = 0;
while ( isspace ( *value ))
value++;
+ if (!*value) return 0;
*ptag = tag;
*pvalue = value;
- return bb_strlen( tag ) && bb_strlen( value );
+ return 1;
}
/* Jump through hoops to simulate how fgets() grabs just one line at a