From e16f1783346a090e4ea1194dcaae7f03e813f6a2 Mon Sep 17 00:00:00 2001 From: Lars Hjemli Date: Tue, 18 Aug 2009 17:17:41 +0200 Subject: Add and use a common readfile() function This function is used to read the full content of a textfile into a newly allocated buffer (with zerotermination). It replaces the earlier readfile() in scan-tree.c (which was rather error-prone[1]), and is reused by read_agefile() in ui-repolist.c. 1: No checks for EINTR and EAGAIN, fixed-size buffer Signed-off-by: Lars Hjemli --- shared.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'shared.c') diff --git a/shared.c b/shared.c index 911a55a..4cb9573 100644 --- a/shared.c +++ b/shared.c @@ -393,3 +393,24 @@ int cgit_close_filter(struct cgit_filter *filter) return 0; die("Subprocess %s exited abnormally", filter->cmd); } + +/* Read the content of the specified file into a newly allocated buffer, + * zeroterminate the buffer and return 0 on success, errno otherwise. + */ +int readfile(const char *path, char **buf, size_t *size) +{ + int fd; + struct stat st; + + fd = open(path, O_RDONLY); + if (fd == -1) + return errno; + if (fstat(fd, &st)) + return errno; + if (!S_ISREG(st.st_mode)) + return EISDIR; + *buf = xmalloc(st.st_size + 1); + *size = read_in_full(fd, *buf, st.st_size); + (*buf)[*size] = '\0'; + return (*size == st.st_size ? 0 : errno); +} -- cgit v1.2.3-59-g8ed1b