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author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-02-02 09:48:13 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-02-04 08:29:17 +0100 |
commit | 912f66935ac446b8556ca9bd0a510c909f172348 (patch) | |
tree | 1bb82d6bc4d0f814d3160b3c22f34fb211cf0473 /scripts | |
parent | 7dede160a8a6167420d3ab98ea63108eca44b0f5 (diff) | |
download | barebox-912f66935ac446b8556ca9bd0a510c909f172348.tar.gz barebox-912f66935ac446b8556ca9bd0a510c909f172348.tar.xz |
scripts: imx-image: Factor out a read_file function
The same code will be used a second time in a followup patch, so
factor out a common function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/imx/imx-image.c | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c index 5eca4463dd..78bbbbc00b 100644 --- a/scripts/imx/imx-image.c +++ b/scripts/imx/imx-image.c @@ -570,6 +570,34 @@ static int hab_sign(struct config_data *data) return 0; } +static void *read_file(const char *filename, size_t *size) +{ + int fd, ret; + void *buf; + struct stat s; + + fd = open(filename, O_RDONLY); + if (fd < 0) { + perror("open"); + exit(1); + } + + ret = fstat(fd, &s); + if (ret) + return NULL; + + *size = s.st_size; + buf = malloc(*size); + if (!buf) + exit(1); + + xread(fd, buf, *size); + + close(fd); + + return buf; +} + int main(int argc, char *argv[]) { int opt, ret; @@ -579,7 +607,7 @@ int main(int argc, char *argv[]) size_t insize; void *infile; struct stat s; - int infd, outfd; + int outfd; int dcd_only = 0; int now = 0; int sign_image = 0; @@ -704,24 +732,10 @@ int main(int argc, char *argv[]) exit(1); } - infd = open(imagename, O_RDONLY); - if (infd < 0) { - perror("open"); - exit(1); - } - - ret = fstat(infd, &s); - if (ret) - return ret; - - insize = s.st_size; - infile = malloc(insize); + infile = read_file(imagename, &insize); if (!infile) exit(1); - xread(infd, infile, insize); - close(infd); - outfd = open(data.outfile, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); if (outfd < 0) { perror("open"); |